104 results on '"Krawiec C"'
Search Results
2. New Science, New Media: An Assessment of the Online Education and Public Outreach Initiatives of The Dark Energy Survey
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Wolf, R. C., Romer, A. K., Nord, B., Avila, S., Bechtol, K., Biron, L., Cawthon, R., Chang, C., Das, R., Ferte, A., Gill, M. S. S., Gupta, R. R., Hamilton, S., Hislop, J. M., Jennings, E., Krawiec, C., Kremin, A., Li, T. S., Lingard, T., Moller, A., Muir, J., Nagasawa, D. Q., Ogando, R. L. C., Plazas, A. A., Sevilla-Noarbe, I., Suchyta, E., Zhang, Y., and Zuntz, J.
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Physics - Physics Education ,Astrophysics - Instrumentation and Methods for Astrophysics - Abstract
As large-scale international collaborations become the standard for astronomy research, a wealth of opportunities have emerged to create innovative education and public outreach (EPO) programming. In the past two decades, large collaborations have focused EPO strategies around published data products. Newer collaborations have begun to explore other avenues of public engagement before and after data are made available. We present a case study of the online EPO program of The Dark Energy Survey, currently one of the largest international astronomy collaborations actively taking data. DES EPO is unique at this scale in astronomy, as far as we are aware, as it evolved organically from scientists' passion for EPO and is entirely organized and implemented by the volunteer efforts of collaboration scientists. We summarize the strategy and implementation of eight EPO initiatives. For content distributed via social media, we present reach and user statistics over the 2016 calendar year. DES EPO online products reached ~2,500 users per post, and 94% of these users indicate a predisposition to science-related interests. We find no obvious correlation between post type and post reach, with the most popular posts featuring the intersections of science and art and/or popular culture. We conclude that one key issue of the online DES EPO program was designing material which would inspire new interest in science. The greatest difficulty of the online DES EPO program was sustaining scientist participation and collaboration support; the most successful programs are those which capitalized on the hobbies of participating scientists. We present statistics and recommendations, along with observations from individual experience, as a potentially instructive resource for scientists or EPO professionals interested in organizing EPO programs and partnerships for large science collaborations or organizations., Comment: 50 pages, 3 appendices, 15 total figures
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- 2018
3. Dark Energy Survey Year 1 Results: Cosmological Constraints from Cosmic Shear
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Troxel, M. A., MacCrann, N., Zuntz, J., Eifler, T. F., Krause, E., Dodelson, S., Gruen, D., Blazek, J., Friedrich, O., Samuroff, S., Prat, J., Secco, L. F., Davis, C., Ferté, A., DeRose, J., Alarcon, A., Amara, A., Baxter, E., Becker, M. R., Bernstein, G. M., Bridle, S. L., Cawthon, R., Chang, C., Choi, A., De Vicente, J., Drlica-Wagner, A., Elvin-Poole, J., Frieman, J., Gatti, M., Hartley, W. G., Honscheid, K., Hoyle, B., Huff, E. M., Huterer, D., Jain, B., Jarvis, M., Kacprzak, T., Kirk, D., Kokron, N., Krawiec, C., Lahav, O., Liddle, A. R., Peacock, J., Rau, M. M., Refregier, A., Rollins, R. P., Rozo, E., Rykoff, E. S., Sánchez, C., Sevilla-Noarbe, I., Sheldon, E., Stebbins, A., Varga, T. N., Vielzeuf, P., Wang, M., Wechsler, R. H., Yanny, B., Abbott, T. M. C., Abdalla, F. B., Allam, S., Annis, J., Bechtol, K., Benoit-Lévy, A., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Castander, F. J., Crocce, M., Cunha, C. E., D'Andrea, C. B., da Costa, L. N., DePoy, D. L., Desai, S., Diehl, H. T., Dietrich, J. P., Doel, P., Fernandez, E., Flaugher, B., Fosalba, P., García-Bellido, J., Gaztanaga, E., Gerdes, D. W., Giannantonio, T., Goldstein, D. A., Gruendl, R. A., Gschwend, J., Gutierrez, G., James, D. J., Jeltema, T., Johnson, M. W. G., Johnson, M. D., Kent, S., Kuehn, K., Kuhlmann, S., Kuropatkin, N., Li, T. S., Lima, M., Lin, H., Maia, M. A. G., March, M., Marshall, J. L., Martini, P., Melchior, P., Menanteau, F., Miquel, R., Mohr, J. J., Neilsen, E., Nichol, R. C., Nord, B., Petravick, D., Plazas, A. A., Romer, A. K., Roodman, A., Sako, M., Sanchez, E., Scarpine, V., Schindler, R., Schubnell, M., Smith, M., Smith, R. C., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M. E. C., Tarle, G., Thomas, D., Tucker, D. L., Vikram, V., Walker, A. R., Weller, J., and Zhang, Y.
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Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We use 26 million galaxies from the Dark Energy Survey (DES) Year 1 shape catalogs over 1321 deg$^2$ of the sky to produce the most significant measurement of cosmic shear in a galaxy survey to date. We constrain cosmological parameters in both the flat $\Lambda$CDM and $w$CDM models, while also varying the neutrino mass density. These results are shown to be robust using two independent shape catalogs, two independent \photoz\ calibration methods, and two independent analysis pipelines in a blind analysis. We find a 3.5\% fractional uncertainty on $\sigma_8(\Omega_m/0.3)^{0.5} = 0.782^{+0.027}_{-0.027}$ at 68\% CL, which is a factor of 2.5 improvement over the fractional constraining power of our DES Science Verification results. In $w$CDM, we find a 4.8\% fractional uncertainty on $\sigma_8(\Omega_m/0.3)^{0.5} = 0.777^{+0.036}_{-0.038}$ and a dark energy equation-of-state $w=-0.95^{+0.33}_{-0.39}$. We find results that are consistent with previous cosmic shear constraints in $\sigma_8$ -- $\Omega_m$, and see no evidence for disagreement of our weak lensing data with data from the CMB. Finally, we find no evidence preferring a $w$CDM model allowing $w\ne -1$. We expect further significant improvements with subsequent years of DES data, which will more than triple the sky coverage of our shape catalogs and double the effective integrated exposure time per galaxy., Comment: 32 pages, 19 figures; matches PRD referee response version
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- 2017
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4. Dark Energy Survey Year 1 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
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DES Collaboration, Abbott, T. M. C., Abdalla, F. B., Alarcon, A., Aleksić, J., Allam, S., Allen, S., Amara, A., Annis, J., Asorey, J., Avila, S., Bacon, D., Balbinot, E., Banerji, M., Banik, N., Barkhouse, W., Baumer, M., Baxter, E., Bechtol, K., Becker, M. R., Benoit-Lévy, A., Benson, B. A., Bernstein, G. M., Bertin, E., Blazek, J., Bridle, S. L., Brooks, D., Brout, D., Buckley-Geer, E., Burke, D. L., Busha, M. T., Capozzi, D., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Castander, F. J., Cawthon, R., Chang, C., Chen, N., Childress, M., Choi, A., Conselice, C., Crittenden, R., Crocce, M., Cunha, C. E., D'Andrea, C. B., da Costa, L. N., Das, R., Davis, T. M., Davis, C., De Vicente, J., DePoy, D. L., DeRose, J., Desai, S., Diehl, H. T., Dietrich, J. P., Dodelson, S., Doel, P., Drlica-Wagner, A., Eifler, T. F., Elliott, A. E., Elsner, F., Elvin-Poole, J., Estrada, J., Evrard, A. E., Fang, Y., Fernandez, E., Ferté, A., Finley, D. A., Flaugher, B., Fosalba, P., Friedrich, O., Frieman, J., García-Bellido, J., Garcia-Fernandez, M., Gatti, M., Gaztanaga, E., Gerdes, D. W., Giannantonio, T., Gill, M. S. S., Glazebrook, K., Goldstein, D. A., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hamilton, S., Hartley, W. G., Hinton, S. R., Honscheid, K., Hoyle, B., Huterer, D., Jain, B., James, D. J., Jarvis, M., Jeltema, T., Johnson, M. D., Johnson, M. W. G., Kacprzak, T., Kent, S., Kim, A. G., King, A., Kirk, D., Kokron, N., Kovacs, A., Krause, E., Krawiec, C., Kremin, A., Kuehn, K., Kuhlmann, S., Kuropatkin, N., Lacasa, F., Lahav, O., Li, T. S., Liddle, A. R., Lidman, C., Lima, M., Lin, H., MacCrann, N., Maia, M. A. G., Makler, M., Manera, M., March, M., Marshall, J. L., Martini, P., McMahon, R. G., Melchior, P., Menanteau, F., Miquel, R., Miranda, V., Mudd, D., Muir, J., Möller, A., Neilsen, E., Nichol, R. C., Nord, B., Nugent, P., Ogando, R. L. C., Palmese, A., Peacock, J., Peiris, H. V., Peoples, J., Percival, W. J., Petravick, D., Plazas, A. A., Porredon, A., Prat, J., Pujol, A., Rau, M. M., Refregier, A., Ricker, P. M., Roe, N., Rollins, R. P., Romer, A. K., Roodman, A., Rosenfeld, R., Ross, A. J., Rozo, E., Rykoff, E. S., Sako, M., Salvador, A. I., Samuroff, S., Sánchez, C., Sanchez, E., Santiago, B., Scarpine, V., Schindler, R., Scolnic, D., Secco, L. F., Serrano, S., Sevilla-Noarbe, I., Sheldon, E., Smith, R. C., Smith, M., Smith, J., Soares-Santos, M., Sobreira, F., Suchyta, E., Tarle, G., Thomas, D., Troxel, M. A., Tucker, D. L., Tucker, B. E., Uddin, S. A., Varga, T. N., Vielzeuf, P., Vikram, V., Vivas, A. K., Walker, A. R., Wang, M., Wechsler, R. H., Weller, J., Wester, W., Wolf, R. C., Yanny, B., Yuan, F., Zenteno, A., Zhang, B., Zhang, Y., and Zuntz, J.
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Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We present cosmological results from a combined analysis of galaxy clustering and weak gravitational lensing, using 1321 deg$^2$ of $griz$ imaging data from the first year of the Dark Energy Survey (DES Y1). We combine three two-point functions: (i) the cosmic shear correlation function of 26 million source galaxies in four redshift bins, (ii) the galaxy angular autocorrelation function of 650,000 luminous red galaxies in five redshift bins, and (iii) the galaxy-shear cross-correlation of luminous red galaxy positions and source galaxy shears. To demonstrate the robustness of these results, we use independent pairs of galaxy shape, photometric redshift estimation and validation, and likelihood analysis pipelines. To prevent confirmation bias, the bulk of the analysis was carried out while blind to the true results; we describe an extensive suite of systematics checks performed and passed during this blinded phase. The data are modeled in flat $\Lambda$CDM and $w$CDM cosmologies, marginalizing over 20 nuisance parameters, varying 6 (for $\Lambda$CDM) or 7 (for $w$CDM) cosmological parameters including the neutrino mass density and including the 457 $\times$ 457 element analytic covariance matrix. We find consistent cosmological results from these three two-point functions, and from their combination obtain $S_8 \equiv \sigma_8 (\Omega_m/0.3)^{0.5} = 0.783^{+0.021}_{-0.025}$ and $\Omega_m = 0.264^{+0.032}_{-0.019}$ for $\Lambda$CDM for $w$CDM, we find $S_8 = 0.794^{+0.029}_{-0.027}$, $\Omega_m = 0.279^{+0.043}_{-0.022}$, and $w=-0.80^{+0.20}_{-0.22}$ at 68% CL. The precision of these DES Y1 results rivals that from the Planck cosmic microwave background measurements, allowing a comparison of structure in the very early and late Universe on equal terms. Although the DES Y1 best-fit values for $S_8$ and $\Omega_m$ are lower than the central values from Planck ..., Comment: Matches published version. Results essentially unchanged, except updated covariance matrix leads to improved chi^2 (colored text removed)
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- 2017
- Full Text
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5. Dark Energy Survey Year 1 Results: Weak Lensing Shape Catalogues
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Zuntz, J., Sheldon, E., Samuroff, S., Troxel, M. A., Jarvis, M., MacCrann, N., Gruen, D., Prat, J., Sánchez, C., Choi, A., Bridle, S. L., Bernstein, G. M., Dodelson, S., Drlica-Wagner, A., Fang, Y., Gruendl, R. A., Hoyle, B., Huff, E. M., Jain, B., Kirk, D., Kacprzak, T., Krawiec, C., Plazas, A. A., Rollins, R. P., Rykoff, E. S., Sevilla-Noarbe, I., Soergel, B., Varga, T. N., Abbott, T. M. C., Abdalla, F. B., Allam, S., Annis, J., Bechtol, K., Benoit-Lévy, A., Bertin, E., Buckley-Geer, E., Burke, D. L., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Castander, F. J., Crocce, M., Cunha, C. E., D'Andrea, C. B., da Costa, L. N., Davis, C., Desai, S., Diehl, H. T., Dietrich, J. P., Doel, P., Eifler, T. F., Estrada, J., Evrard, A. E., Neto, A. Fausti, Fernandez, E., Flaugher, B., Fosalba, P., Frieman, J., García-Bellido, J., Gaztanaga, E., Gerdes, D. W., Giannantonio, T., Gschwend, J., Gutierrez, G., Hartley, W. G., Honscheid, K., James, D. J., Jeltema, T., Johnson, M. W. G., Johnson, M. D., Kuehn, K., Kuhlmann, S., Kuropatkin, N., Lahav, O., Li, T. S., Lima, M., Maia, M. A. G., March, M., Martini, P., Melchior, P., Menanteau, F., Miller, C. J., Miquel, R., Mohr, J. J., Neilsen, E., Nichol, R. C., Ogando, R. L. C., Roe, N., Romer, A. K., Roodman, A., Sanchez, E., Scarpine, V., Schindler, R., Schubnell, M., Smith, M., Smith, R. C., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M. E. C., Tarle, G., Thomas, D., Tucker, D. L., Vikram, V., Walker, A. R., Wechsler, R. H., and Zhang, Y.
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Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We present two galaxy shape catalogues from the Dark Energy Survey Year 1 data set, covering 1500 square degrees with a median redshift of $0.59$. The catalogues cover two main fields: Stripe 82, and an area overlapping the South Pole Telescope survey region. We describe our data analysis process and in particular our shape measurement using two independent shear measurement pipelines, METACALIBRATION and IM3SHAPE. The METACALIBRATION catalogue uses a Gaussian model with an innovative internal calibration scheme, and was applied to $riz$-bands, yielding 34.8M objects. The IM3SHAPE catalogue uses a maximum-likelihood bulge/disc model calibrated using simulations, and was applied to $r$-band data, yielding 21.9M objects. Both catalogues pass a suite of null tests that demonstrate their fitness for use in weak lensing science. We estimate the 1$\sigma$ uncertainties in multiplicative shear calibration to be $0.013$ and $0.025$ for the METACALIBRATION and IM3SHAPE catalogues, respectively., Comment: 36 Pages, 29 figures. This version accepted for publication in MNRAS
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- 2017
- Full Text
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6. Dark Energy Survey Year 1 results: weak lensing shape catalogues
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Zuntz, J, Sheldon, E, Samuroff, S, Troxel, MA, Jarvis, M, MacCrann, N, Gruen, D, Prat, J, Sánchez, C, Choi, A, Bridle, SL, Bernstein, GM, Dodelson, S, Drlica-Wagner, A, Fang, Y, Gruendl, RA, Hoyle, B, Huff, EM, Jain, B, Kirk, D, Kacprzak, T, Krawiec, C, Plazas, AA, Rollins, RP, Rykoff, ES, Sevilla-Noarbe, I, Soergel, B, Varga, TN, Abbott, TMC, Abdalla, FB, Allam, S, Annis, J, Bechtol, K, Benoit-Lévy, A, Bertin, E, Buckley-Geer, E, Burke, DL, Rosell, A Carnero, Kind, M Carrasco, Carretero, J, Castander, FJ, Crocce, M, Cunha, CE, D’Andrea, CB, da Costa, LN, Davis, C, Desai, S, Diehl, HT, Dietrich, JP, Doel, P, Eifler, TF, Estrada, J, Evrard, AE, Neto, A Fausti, Fernandez, E, Flaugher, B, Fosalba, P, Frieman, J, García-Bellido, J, Gaztanaga, E, Gerdes, DW, Giannantonio, T, Gschwend, J, Gutierrez, G, Hartley, WG, Honscheid, K, James, DJ, Jeltema, T, Johnson, MWG, Johnson, MD, Kuehn, K, Kuhlmann, S, Kuropatkin, N, Lahav, O, Li, TS, Lima, M, Maia, MAG, March, M, Martini, P, Melchior, P, Menanteau, F, Miller, CJ, Miquel, R, Mohr, JJ, Neilsen, E, Nichol, RC, Ogando, RLC, Roe, N, Romer, AK, Roodman, A, Sanchez, E, Scarpine, V, Schindler, R, Schubnell, M, Smith, M, Smith, RC, Soares-Santos, M, Sobreira, F, Suchyta, E, and Swanson, MEC
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Space Sciences ,Physical Sciences ,astro-ph.CO ,Astronomical and Space Sciences ,Astronomy & Astrophysics ,Astronomical sciences ,Particle and high energy physics ,Space sciences - Abstract
We present two galaxy shape catalogues from the Dark Energy Survey Year 1 data set, covering 1500 deg2 with a median redshift of 0.59. The catalogues cover two main fields: Stripe 82, and an area overlapping the South Pole Telescope survey region. We describe our data analysis process and in particular our shape measurement using two independent shear measurement pipelines, METACALIBRATION and IM3SHAPE. The METACALIBRATION catalogue uses a Gaussian model with an innovative internal calibration scheme, and was applied to riz bands, yielding 34.8M objects. The IM3SHAPE catalogue uses amaximum-likelihood bulge/disc model calibrated using simulations, and was applied to r-band data, yielding 21.9M objects. Both catalogues pass a suite of null tests that demonstrate their fitness for use in weak lensing science. We estimate the 1σ uncertainties in multiplicative shear calibration to be 0.013 and 0.025 for the METACALIBRATION and IM3SHAPE catalogues, respectively.
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- 2018
7. Dark Energy Survey Year 1 results: Weak lensing shape catalogues
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Zunt, J, Sheldon, E, Samuroff, S, Troxel, MA, Jarvis, M, MacCrann, N, Gruen, D, Prat, J, Sánchez, C, Choi, A, Bridle, SL, Bernstein, GM, Dodelson, S, Drlica-Wagner, A, Fang, Y, Gruendl, RA, Hoyle, B, Huff, EM, Jain, B, Kirk, D, Kacprzak, T, Krawiec, C, Plazas, AA, Rollins, RP, Rykoff, ES, Sevilla-Noarbe, I, Soergel, B, Varga, TN, Abbott, TMC, Abdalla, FB, Allam, S, Annis, J, Bechtol, K, Benoit-Lévy, A, Bertin, E, Buckley-Geer, E, Burke, DL, Carnero Rosell, A, Carrasco Kind, M, Carretero, J, Castander, FJ, Crocce, M, Cunha, CE, D'Andrea, CB, da Costa, LN, Davis, C, Desai, S, Diehl, HT, Dietrich, JP, Doel, P, Eifler, TF, Estrada, J, Evrard, AE, Fausti Neto, A, Fernandez, E, Flaugher, B, Fosalba, P, Frieman, J, García-Bellido, J, Gaztanaga, E, Gerdes, DW, Giannantonio, T, Gschwend, J, Gutierrez, G, Hartley, WG, Honscheid, K, James, DJ, Jeltema, T, Johnson, MWG, Johnson, MD, Kuehn, K, Kuhlmann, S, Kuropatkin, N, Lahav, O, Li, TS, Lima, M, Maia, MAG, March, M, Martini, P, Melchior, P, Menanteau, F, Miller, CJ, Miquel, R, Mohr, JJ, Neilsen, E, Nichol, RC, Ogando, RLC, Roe, N, Romer, AK, Roodman, A, Sanchez, E, Scarpine, V, Schindler, R, Schubnell, M, Smith, M, Smith, RC, Soares-Santos, M, Sobreira, F, Suchyta, E, and Swanson, MEC
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astro-ph.CO ,Astronomical And Space Sciences ,Astronomy & Astrophysics ,Astronomical and Space Sciences - Abstract
We present two galaxy shape catalogues from the Dark Energy Survey Year 1 data set, covering 1500 deg2 with a median redshift of 0.59. The catalogues cover two main fields: Stripe 82, and an area overlapping the South Pole Telescope survey region. We describe our data analysis process and in particular our shape measurement using two independent shear measurement pipelines, METACALIBRATION and IM3SHAPE. The METACALIBRATION catalogue uses a Gaussian model with an innovative internal calibration scheme, and was applied to riz bands, yielding 34.8M objects. The IM3SHAPE catalogue uses amaximum-likelihood bulge/disc model calibrated using simulations, and was applied to r-band data, yielding 21.9M objects. Both catalogues pass a suite of null tests that demonstrate their fitness for use in weak lensing science. We estimate the 1σ uncertainties in multiplicative shear calibration to be 0.013 and 0.025 for the METACALIBRATION and IM3SHAPE catalogues, respectively.
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- 2018
8. Dark Energy Survey Year 1 results: Cosmological constraints from cosmic shear
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Troxel, MA, MacCrann, N, Zuntz, J, Eifler, TF, Krause, E, Dodelson, S, Gruen, D, Blazek, J, Friedrich, O, Samuroff, S, Prat, J, Secco, LF, Davis, C, Ferté, A, DeRose, J, Alarcon, A, Amara, A, Baxter, E, Becker, MR, Bernstein, GM, Bridle, SL, Cawthon, R, Chang, C, Choi, A, De Vicente, J, Drlica-Wagner, A, Elvin-Poole, J, Frieman, J, Gatti, M, Hartley, WG, Honscheid, K, Hoyle, B, Huff, EM, Huterer, D, Jain, B, Jarvis, M, Kacprzak, T, Kirk, D, Kokron, N, Krawiec, C, Lahav, O, Liddle, AR, Peacock, J, Rau, MM, Refregier, A, Rollins, RP, Rozo, E, Rykoff, ES, Sánchez, C, Sevilla-Noarbe, I, Sheldon, E, Stebbins, A, Varga, TN, Vielzeuf, P, Wang, M, Wechsler, RH, Yanny, B, Abbott, TMC, Abdalla, FB, Allam, S, Annis, J, Bechtol, K, Benoit-Lévy, A, Bertin, E, Brooks, D, Buckley-Geer, E, Burke, DL, Rosell, A Carnero, Kind, M Carrasco, Carretero, J, Castander, FJ, Crocce, M, Cunha, CE, D’Andrea, CB, da Costa, LN, DePoy, DL, Desai, S, Diehl, HT, Dietrich, JP, Doel, P, Fernandez, E, Flaugher, B, Fosalba, P, García-Bellido, J, Gaztanaga, E, Gerdes, DW, Giannantonio, T, Goldstein, DA, Gruendl, RA, Gschwend, J, Gutierrez, G, James, DJ, Jeltema, T, Johnson, MWG, Johnson, MD, Kent, S, Kuehn, K, Kuhlmann, S, Kuropatkin, N, and Li, TS
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Particle and High Energy Physics ,Physical Sciences ,astro-ph.CO - Abstract
We use 26×106 galaxies from the Dark Energy Survey (DES) Year 1 shape catalogs over 1321 deg2 of the sky to produce the most significant measurement of cosmic shear in a galaxy survey to date. We constrain cosmological parameters in both the flat ΛCDM and the wCDM models, while also varying the neutrino mass density. These results are shown to be robust using two independent shape catalogs, two independent photo-z calibration methods, and two independent analysis pipelines in a blind analysis. We find a 3.5% fractional uncertainty on σ8(Ωm/0.3)0.5=0.782-0.027+0.027 at 68% C.L., which is a factor of 2.5 improvement over the fractional constraining power of our DES Science Verification results. In wCDM, we find a 4.8% fractional uncertainty on σ8(Ωm/0.3)0.5=0.777-0.038+0.036 and a dark energy equation-of-state w=-0.95-0.39+0.33. We find results that are consistent with previous cosmic shear constraints in σ8 - Ωm, and we see no evidence for disagreement of our weak lensing data with data from the cosmic microwave background. Finally, we find no evidence preferring a wCDM model allowing w≠-1. We expect further significant improvements with subsequent years of DES data, which will more than triple the sky coverage of our shape catalogs and double the effective integrated exposure time per galaxy.
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- 2018
9. The dark energy survey and operations: years 1 to 3
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Diehl, H. T., additional, Neilsen, E., additional, Gruendl, R., additional, Yanny, B., additional, Abbott, T. M. C., additional, Aleksić, J., additional, Allam, S., additional, Annis, J., additional, Balbinot, E., additional, Baumer, M., additional, Beaufore, L., additional, Bechtol, K., additional, Bernstein, G., additional, Birrer, S., additional, Bonnett, C., additional, Brout, D., additional, Bruderer, C., additional, Buckley-Geer, E. J., additional, Capozzi, D., additional, Carnero Rosell, A., additional, Castander, F. J., additional, Cawthon, R., additional, Chang, C., additional, Clerkin, L., additional, Covarrubias, R., additional, Cuhna, C., additional, D'Andrea, C., additional, da Costa, L., additional, Das, R., additional, Davis, C., additional, Dietrich, J., additional, Drlica-Wagner, A., additional, Elliott, A., additional, Eifler, T. F., additional, Etherington, J., additional, Flaugher, B. L., additional, Frieman, J., additional, Fausti Neto, A., additional, Fernández, M. G., additional, Furlanetto, C., additional, Gangkofner, D., additional, Gerdes, D. W., additional, Goldstein, D. A., additional, Grabowski, K., additional, Gupta, R. R., additional, Hamilton, S., additional, Head, H., additional, Helsby, J., additional, Hollowood, D., additional, Honscheid, K., additional, James, D., additional, Johnson, M., additional, Johnson, M. W. G., additional, Jouvel, S., additional, Kacprzac, T., additional, Kent, S., additional, Kessler, R., additional, Kim, A., additional, Krause, E., additional, Krawiec, C. I., additional, Kremin, A., additional, Kron, R., additional, Kuhlmann, S., additional, Kuropatkin, N., additional, Lahav, O., additional, Lasker, J., additional, Li, T. S., additional, Luque, E., additional, Maccrann, N., additional, March, M., additional, Marshall, J., additional, Mondrik, N. P., additional, Morganson, E. P., additional, Mudd, D., additional, Nadolski, A., additional, Nugent, P., additional, Melchior, P., additional, Menanteau, F., additional, Nagasawa, D. Q., additional, Nord, B., additional, Ogando, R., additional, Old, L., additional, Palmese, A., additional, Petravick, D., additional, Plazas, A. A., additional, Pujol, A., additional, Queiroz, A. B. A., additional, Reil, K., additional, Romer, A. K., additional, Rosenfeld, R., additional, Roodman, A., additional, Rooney, P., additional, Sako, M., additional, Salvador, A. I., additional, Sánchez, C., additional, Sánchez Álvaro, E., additional, Santiago, B. X., additional, Schooneveld, A., additional, Schubnell, M., additional, Sheldon, E., additional, Smith, A., additional, Smith, R. C., additional, Soares-Santos, M., additional, Sobreira, F., additional, Soumagnac, M., additional, Spinka, H., additional, Tie, S. S., additional, Tucker, D., additional, Vikram, V., additional, Vivas, K., additional, Walker, A. R., additional, Wester, W., additional, Wiesner, M., additional, Wilcox, H., additional, Williams, P., additional, Zenteno, A., additional, Zhang, Y., additional, and Zhang, Z., additional
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- 2016
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10. The dark energy survey and operations: years 1 to 3
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Peck, Alison B., Seaman, Robert L., Benn, Chris R., Diehl, H. T., Neilsen, E., Gruendl, R., Yanny, B., Abbott, T. M. C., Aleksić, J., Allam, S., Annis, J., Balbinot, E., Baumer, M., Beaufore, L., Bechtol, K., Bernstein, G., Birrer, S., Bonnett, C., Brout, D., Bruderer, C., Buckley-Geer, E. J., Capozzi, D., Carnero Rosell, A., Castander, F. J., Cawthon, R., Chang, C., Clerkin, L., Covarrubias, R., Cuhna, C., D'Andrea, C., da Costa, L., Das, R., Davis, C., Dietrich, J., Drlica-Wagner, A., Elliott, A., Eifler, T. F., Etherington, J., Flaugher, B. L., Frieman, J., Fausti Neto, A., Fernández, M. G., Furlanetto, C., Gangkofner, D., Gerdes, D. W., Goldstein, D. A., Grabowski, K., Gupta, R. R., Hamilton, S., Head, H., Helsby, J., Hollowood, D., Honscheid, K., James, D., Johnson, M., Johnson, M. W. G., Jouvel, S., Kacprzac, T., Kent, S., Kessler, R., Kim, A., Krause, E., Krawiec, C. I., Kremin, A., Kron, R., Kuhlmann, S., Kuropatkin, N., Lahav, O., Lasker, J., Li, T. S., Luque, E., Maccrann, N., March, M., Marshall, J., Mondrik, N. P., Morganson, E. P., Mudd, D., Nadolski, A., Nugent, P., Melchior, P., Menanteau, F., Nagasawa, D. Q., Nord, B., Ogando, R., Old, L., Palmese, A., Petravick, D., Plazas, A. A., Pujol, A., Queiroz, A. B. A., Reil, K., Romer, A. K., Rosenfeld, R., Roodman, A., Rooney, P., Sako, M., Salvador, A. I., Sánchez, C., Sánchez Álvaro, E., Santiago, B. X., Schooneveld, A., Schubnell, M., Sheldon, E., Smith, A., Smith, R. C., Soares-Santos, M., Sobreira, F., Soumagnac, M., Spinka, H., Tie, S. S., Tucker, D., Vikram, V., Vivas, K., Walker, A. R., Wester, W., Wiesner, M., Wilcox, H., Williams, P., Zenteno, A., Zhang, Y., and Zhang, Z.
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- 2016
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11. Dark Energy Survey Year 1 Results: Cosmological Constraints from Galaxy Clustering and Weak Lensing
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Abbott, T. M. C., Abdalla, F. B., Alarcon, A., Aleksic, J., Allam, S., Allen, S., Amara, A., Annis, J., Asorey, J., Avila, S., Bacon, D., Balbinot, E., Banerji, M., Banik, N., Barkhouse, W., Baumer, M., Baxter, E., Bechtol, K., Becker, M. R., Benoit-Levy, A., Benson, B. A., Bernstein, G. M., Bertin, E., Blazek, J., Bridle, S. L., Brooks, D., Brout, D., Buckley-Geer, E., Burke, D. L., Busha, M. T., Campos, A. [UNESP], Capozzi, D., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Castander, F. J., Cawthon, R., Chang, C., Chen, N., Childress, M., Choi, A., Conselice, C., Crittenden, R., Crocce, M., Cunha, C. E., D'Andrea, C. B., Costa, L. N. da, Das, R., Davis, T. M., Davis, C., De Vicente, J., DePoy, D. L., DeRose, J., Desai, S., Diehl, H. T., Dietrich, J. P., Dodelson, S., Doel, P., Drlica-Wagner, A., Eifler, T. F., Elliott, A. E., Elsner, F., Elvin-Poole, J., Estrada, J., Evrard, A. E., Fang, Y., Fernandez, E., Ferte, A., Finley, D. A., Flaugher, B., Fosalba, P., Friedrich, O., Frieman, J., Garcia-Bellido, J., Garcia-Fernandez, M., Gatti, M., Gaztanaga, E., Gerdes, D. W., Giannantonio, T., Gill, M. S. S., Glazebrook, K., Goldstein, D. A., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hamilton, S., Hartley, W. G., Hinton, S. R., Honscheid, K., Hoyle, B., Huterer, D., Jain, B., James, D. J., Jarvis, M., Jeltema, T., Johnson, M. D., Johnson, M. W. G., Kacprzak, T., Kent, S., Kim, A. G., King, A., Kirk, D., Kokron, N., Kovacs, A., Krause, E., Krawiec, C., Kremin, A., Kuehn, K., Kuhlmann, S., Kuropatkin, N., Lacasa, F. [UNESP], Lahav, O., Li, T. S., Liddle, A. R., Lidman, C., Lima, M., Lin, H., MacCrann, N., Maia, M. A. G., Makler, M., Manera, M., March, M., Marshall, J. L., Martini, P., McMahon, R. G., Melchior, P., Menanteau, F., Miquel, R., Miranda, V., Mudd, D., Muir, J., Moller, A., Neilsen, E., Nichol, R. C., Nord, B., Nugent, P., Ogando, R. L. C., Palmese, A., Peacock, J., Peiris, H. V., Peoples, J., Percival, W. J., Petravick, D., Plazas, A. A., Porredon, A., Prat, J., Pujol, A., Rau, M. M., Refregier, A., Ricker, P. M., Roe, N., Rollins, R. P., Romer, A. K., Roodman, A., Rosenfeld, R. [UNESP], Ross, A. J., Rozo, E., Rykoff, E. S., Sako, M., Salvador, A. I., Samuroff, S., Sanchez, C., Sanchez, E., Santiago, B., Scarpine, V., Schindler, R., Scolnic, D., Secco, L. F., Serrano, S., Sevilla-Noarbe, I., Sheldon, E., Smith, R. C., Smith, M., Smith, J., Soares-Santos, M., Sobreira, F., Suchyta, E., Tarle, G., Thomas, D., Troxel, M. A., Tucker, D. L., Tucker, B. E., Uddin, S. A., Varga, T. N., Vielzeuf, P., Vikram, V., Vivas, A. K., Walker, A. R., Wang, M., Wechsler, R. H., Weller, J., Wester, W., Wolf, R. C., Yanny, B., Yuan, F., Zenteno, A., Zhang, B., Zhang, Y., Zuntz, J., Dark Energy Survey Collaboration, Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), DES, National Optical Astronomy Observatory, Rhodes University, University College London, IEEC-CSIC, Barcelona Institute of Science and Technology, Fermi National Accelerator Laboratory, Stanford University, ETH Zurich, University of Queensland, ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), University of Portsmouth, Universidad Autonoma de Madrid, University of Surrey, University of Cambridge, Witmer Hall, SLAC National Accelerator Laboratory, University of Pennsylvania, LSST, Institut d'Astrophysique de Paris, University of Chicago, Observatoire de Sauverny, Ohio State University, University of Manchester, Universidade Estadual Paulista (UNESP), Laboratório Interinstitucional de E-Astronomia - LIneA, Observatório Nacional, National Center for Supercomputing Applications, University of Illinois, University of Southampton, School of Physics and Astronomy, University of Michigan, Medioambientales y Tecnológicas (CIEMAT), Texas A and M University, IIT Hyderabad, Excellence Cluster Universe, Ludwig-Maximilians-Universität, California Institute of Technology, University of Edinburgh, Ludwig-Maximilians Universität München, Max Planck Institute for Extraterrestrial Physics, Swinburne University of Technology, 501 Campbell Hall, Lawrence Berkeley National Laboratory, University of Washington, Santa Cruz Institute for Particle Physics, Universidade de São Paulo (USP), Australian Astronomical Observatory, Argonne National Laboratory, Centro Brasileiro de Pesquisas Físicas, Peyton Hall, Institució Catalana de Recerca i Estudis Avançats, Australian National University, University of Sussex, University of Arizona, UFRGS, Brookhaven National Laboratory, Dept. Physics-Astronomy, Universidade Estadual de Campinas (UNICAMP), Oak Ridge National Laboratory, Chinese Academy of Sciences, Cerro Tololo Interamer Observ, Rhodes Univ, UCL, CSIC, Barcelona Inst Sci & Technol, Fermilab Natl Accelerator Lab, Stanford Univ, Swiss Fed Inst Technol, Univ Queensland, ARC Ctr Excellence All Sky Astrophys CAASTRO, Univ Portsmouth, UAM, Univ Surrey, Univ Cambridge, Univ North Dakota, SLAC Natl Accelerator Lab, Univ Penn, CNRS, UPMC Univ Paris 06, Univ Chicago, EPFL, Ohio State Univ, Univ Manchester, Universidade Estadual Paulista (Unesp), Lab Interinst Astron LIneA, Observ Nacl, Natl Ctr Supercomp Applicat, Univ Illinois, Univ Southampton, Univ Nottingham, Univ Michigan, Ctr Invest Energet Medioambient & Tecnol CIEMAT, Texas A&M Univ, Ludwig Maximilians Univ Munchen, CALTECH, Univ Edinburgh, Max Planck Inst Extraterr Phys, Swinburne Univ Technol, Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Univ Washington, Santa Cruz Inst Particle Phys, Australian Astron Observ, Argonne Natl Lab, Ctrt Brasileiro Pesquisas Fisicas, Princeton Univ, Inst Catalana Recerca & Estudis Avancats, Australian Natl Univ, Univ Sussex, Univ Arizona, Univ Fed Rio Grande do Sul, Brookhaven Natl Lab, Austin Peay State Univ, Oak Ridge Natl Lab, and Chinese Acad Sci
- Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Cosmic microwave background ,FOS: Physical sciences ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,01 natural sciences ,Cosmology ,symbols.namesake ,0103 physical sciences ,Planck ,010303 astronomy & astrophysics ,Weak gravitational lensing ,STFC ,ResearchInstitutes_Networks_Beacons/MERI ,QC ,Physics ,010308 nuclear & particles physics ,Astronomy ,RCUK ,Manchester Environmental Research Institute ,Redshift ,Galaxy ,symbols ,Dark energy ,Neutrino ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
We present cosmological results from a combined analysis of galaxy clustering and weak gravitational lensing, using 1321 deg$^2$ of $griz$ imaging data from the first year of the Dark Energy Survey (DES Y1). We combine three two-point functions: (i) the cosmic shear correlation function of 26 million source galaxies in four redshift bins, (ii) the galaxy angular autocorrelation function of 650,000 luminous red galaxies in five redshift bins, and (iii) the galaxy-shear cross-correlation of luminous red galaxy positions and source galaxy shears. To demonstrate the robustness of these results, we use independent pairs of galaxy shape, photometric redshift estimation and validation, and likelihood analysis pipelines. To prevent confirmation bias, the bulk of the analysis was carried out while blind to the true results; we describe an extensive suite of systematics checks performed and passed during this blinded phase. The data are modeled in flat $\Lambda$CDM and $w$CDM cosmologies, marginalizing over 20 nuisance parameters, varying 6 (for $\Lambda$CDM) or 7 (for $w$CDM) cosmological parameters including the neutrino mass density and including the 457 $\times$ 457 element analytic covariance matrix. We find consistent cosmological results from these three two-point functions, and from their combination obtain $S_8 \equiv \sigma_8 (\Omega_m/0.3)^{0.5} = 0.783^{+0.021}_{-0.025}$ and $\Omega_m = 0.264^{+0.032}_{-0.019}$ for $\Lambda$CDM for $w$CDM, we find $S_8 = 0.794^{+0.029}_{-0.027}$, $\Omega_m = 0.279^{+0.043}_{-0.022}$, and $w=-0.80^{+0.20}_{-0.22}$ at 68% CL. The precision of these DES Y1 results rivals that from the Planck cosmic microwave background measurements, allowing a comparison of structure in the very early and late Universe on equal terms. Although the DES Y1 best-fit values for $S_8$ and $\Omega_m$ are lower than the central values from Planck ..., Comment: Matches published version. Results essentially unchanged, except updated covariance matrix leads to improved chi^2 (colored text removed)
12. A Multi-Center Retrospective Database Evaluation of Pediatric Subjects Diagnosed With Methemoglobinemia.
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Sinha N, Lichak B, Thomas NJ, and Krawiec C
- Abstract
Background: Methemoglobinemia requires early identification and treatment, but limited knowledge exists regarding the current therapeutic approach taken by clinicians as well as the outcomes that occur in children., Objectives: To determine the current prevalence of this rare disease in the pediatric population, evaluate the impact of methemoglobin and functional hemoglobin levels, and assess how this disease is approached by clinicians. We hypothesize that methemoglobinemia prevalence is low and more methylene blue use would be observed in subjects with functional hemoglobin levels less than 7 g/dL., Design: This was a retrospective observational cohort study utilizing deidentified TriNetX
® electronic health record (EHR) data., Methods: Using a multicenter EHR database, we evaluated subjective characteristics, diagnostic, laboratory results, medication, and procedural codes., Results: Ninety-eight children (mean age 5.3 ± 5.3 years) from 53 healthcare organizations were included. Methemoglobinemia prevalence was 0.0015% with an overall 30-day mortality of 6.1%. Subjects with methemoglobin percentages greater than 20% had a higher frequency of methylene blue administration (70.6% versus 24.7%, P = .0005). Critical care service requirements and methylene blue administration were similar in the subjects with functional hemoglobin less than 7 g/dL and more than 7 g/dL groups. Overall, 13 (13.2%) subjects underwent glucose-6-phosphate dehydrogenase deficiency (G6PD) testing., Conclusion: In our study, we found methemoglobinemia prevalence in children is low, there is a low frequency of G6PD testing despite methylene blue hemolysis risk, and subjects appeared to be treated similarly despite a low functional hemoglobin. These findings highlight the continued critical nature of this disease and may highlight opportunities for education aimed at improving care in children diagnosed with methemoglobinemia, particularly related to G6PD testing., Competing Interests: The author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: Conrad Krawiec receives funding from the New England Journal of Medicine and Elsevier Osmosis for educational materials and content. This manuscript was presented as a poster presentation at the Pediatric Academic Societies on April 30th, 2023., (© The Author(s) 2024.)- Published
- 2024
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13. Supraventricular tachycardia diagnosis in asthma patients is associated with adverse health outcomes.
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Markus H, Ceneviva GD, Thomas NJ, and Krawiec C
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Introduction: Supraventricular tachycardia (SVT) can occur during treatment of an acute asthma exacerbation. There are, however, no data on the long-term outcomes of children who are diagnosed with both asthma and SVT. This study aims to analyze the impact of SVT in asthmatic children on mortality and/or cardiac arrest, hypothesizing asthmatic subjects with SVT have increased mortality and/or cardiac arrest compared to asthmatic subject with no-SVT., Methods: This was a retrospective cohort study, utilizing the TriNetX© electronic health record (EHR) database that included asthmatic subjects 2-18 years of age. The study population was divided into two groups (subjects with SVT diagnosis and no-SVT diagnosis). Data related to demographics, diagnostic, procedural, and medication codes were collected. The primary outcome was any death and/or cardiac arrest in a patient after the first asthma diagnosis date., Results: This study included 91,066 asthmatic subjects (244 [0.27%] with SVT and 90,822 [99.73%] with no-SVT). Multivariable logistic regression analysis demonstrated that after controlling for demographic and clinical features, the odds of all-cause death and/or cardiac arrest after the first reported asthma exacerbation was significantly higher in asthmatic children with SVT compared to no-SVT (odds ratio [OR]: 4.30, confidence interval [CI]: 2.50-7.39, p < .001)., Conclusions: Our large nationwide EHR study suggests that asthmatic pediatric patients with documented SVT diagnosis at any point in their EHR may be at increased risk of adverse health outcomes compared to no-SVT. Further studies are needed to determine the factors contributing to the increased risk of mortality and/or cardiac arrest in children with asthma and SVT., (© 2024 The Author(s). Pediatric Pulmonology published by Wiley Periodicals LLC.)
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- 2024
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14. Retrospective Analysis of Dog Bite Injuries in Children with Autism Spectrum Disorder.
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Mazur LE, Even KM, and Krawiec C
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Purpose: Children with autism spectrum disorder (ASD) may suffer a dog bite injury, but the frequency and its clinical impact is unknown. We sought to evaluate the (1) subject characteristics; (2) injury type; (3) clinical care provided; and (4) mortality in children with ASD who suffer a dog bite injury. We hypothesized that children with ASD have higher mortality and require more clinical care than children without ASD., Methods: This is a retrospective observational cohort study utilizing the TriNetX
® EHR database of subjects aged 0 to 18 years with dog bite diagnostic codes. Data were analyzed for demographics, diagnostic, medication, procedural codes, and mortality., Results: We analyzed 38,337 subjects (n, %) coded for a dog bite injury [619 (1.6%) with ASD and 37718 (98.4%) without ASD]. Children with ASD had a higher odds of a traumatic injury to the head [1.34 (1.15, 1.57), p < 0.0001] compared to those without. There was no difference in critical care services, hospitalization, mechanical ventilation, and rabies vaccine administration. All-cause mortality at 1 year was low with no deaths reported within the ASD cohort and 37 (0.1%) deaths reported within the no ASD cohort., Conclusions: Children with ASD that suffer dog bite injuries have similar clinical needs to children without ASD but are more likely to suffer a traumatic injury to the head. Future studies are needed to better understand inciting factors for injuries in this population., (© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)- Published
- 2024
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15. Impact of hyponatremia in preeclamptic patients with severe features.
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Endres KM, Roberts CM, Fang X, Zhou S, Wright TS, and Krawiec C
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- Humans, Female, Pregnancy, Adult, Retrospective Studies, Young Adult, Adolescent, Middle Aged, Cesarean Section, Antihypertensive Agents therapeutic use, Sodium blood, Hyponatremia etiology, Pre-Eclampsia blood
- Abstract
Hyponatremia, though common in women with preeclampsia, has not been well studied. Our primary objectives are to assess the clinical characteristics and emergency therapy applied to subjects diagnosed with preeclampsia. We hypothesize that hyponatremia present in preeclamptic patients with severe features is associated with greater use of emergency hypertensives, antenatal steroids, and cesarean delivery. This is a retrospective descriptive study utilizing an electronic health record database (TriNetX ®). We collected and evaluated the following data of subjects aged 15 to 54 years with preeclampsia with severe features diagnosis: demographics, diagnostic codes, medication codes, procedure codes, deaths, and laboratory results. A total of 2,901 subjects [215 (7.4%)] with a sodium level below 134 mEq/L and [2686 (92.6%)] with a sodium level above 135 mEq/L were included. A higher proportion of subjects in the below 134 sodium group received emergency antihypertensives [165 (76.7%) versus 1811 (67.4%), p = 0.01], antenatal steroids [103 (47.9%) versus 953 (35.5%), p = 0.001], and cesarean section [27 (12.6%) versus 97 (3.6%), p = <0.001]. We found that hyponatremia may be associated with emergency antihypertensive use, antenatal steroid use, and cesarean section in patients with preeclampsia with severe features. Future research is needed to determine if routine sodium levels assessed in preeclamptic subjects with severe features identify subjects at risk of receiving these treatments., Competing Interests: Conrad Krawiec receives funding from the New England Journal of Medicine and Elsevier © Osmosis for educational materials and content. The other author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. This does not alter our adherence to PLOS ONE policies on sharing data and materials., (Copyright: © 2024 Endres et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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16. Impact of the COVID-19 Pandemic on the Diagnostic Frequency and Medical Therapies Applied to Subjects With Functional Seizures.
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Schaefer Bennett G, Naik S, and Krawiec C
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Background and Purposes: The coronavirus 2019 (COVID-19) pandemic was associated with catastrophic consequences and increased psychological distress. However, it is unknown if the pandemic impacted the frequency of functional seizures (FS), a well known manifestation of psychiatric disease. The study objectives are to evaluate FS diagnostic code frequency before and during the COVID-19 pandemic and the therapies applied. We hypothesized that FS frequency would be higher during the pandemic, but that the therapies applied would be similar between the two time periods., Methods: This was a retrospective observational cohort study utilizing the TriNetX ® electronic health record (EHR) database. We included subjects aged 8 to 65 years with a diagnostic code of "conversion disorder with seizures or convulsions." After the query, the study population was divided into 2 groups [pre-COVID-19 (3/1/2018 to 2/29/2020) and COVID-19 (3/1/2020 to 2/28/2022). We analyzed subject demographics, diagnostic, procedure, and medication codes., Results: We included 8680 subjects [5029 (57.9%) pre-COVID-19 and 3651 (42.1%) COVID-19] in this study. There was a higher odds of mental health conditions, anxiolytic prescription, emergency department services, and hospital services, but a lower odds of critical care services during COVID-19. There was no difference in antiepileptic use between the time periods., Conclusions: During the COVID-19 pandemic, a higher odds of anxiolytic use, need for emergency department services, and hospital services was reported. In addition, there was a decreased odds of critical care services. This may reflect a change in how patients with FS were managed during the pandemic., Competing Interests: The author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: Conrad Krawiec receives funding from the New England Journal of Medicine and Elsevier Osmosis © for educational materials and content., (© The Author(s) 2024.)
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- 2024
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17. Association of medical comorbidities in obese subjects diagnosed with heparin-induced thrombocytopenia.
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Darok M, Daly A, Walter V, and Krawiec C
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Objectives: Heparin-induced thrombocytopenia can occur in obese subjects. The medical comorbidities associated with obesity may contribute to the pathogenesis of this disease. It is unknown, however, which specific medical comorbidities and if higher odds of thrombosis are present in obese heparin-induced thrombocytopenia patients. We sought to determine whether obese heparin-induced thrombocytopenia subjects had higher odds of both comorbidities and thrombosis, hypothesizing that this patient population would have higher odds of both these conditions., Methods: This was a multi-center retrospective study utilizing TriNetX
© , an electronic health record database, in subjects aged 18-99 years diagnosed with heparin-induced thrombocytopenia. The cohort was divided into two groups (1) non-obese (body mass index < 30 kg/m2 ) and (2) obese (body mass index ⩾ 30 kg/m2 ). We evaluated patient characteristics, diagnostic, laboratory, medication, and procedure codes., Results: A total of 1583 subjects (696 (44.0%) non-obese and 887 (56.0%) obese) were included. Obese subjects had higher odds of diabetes with complications (OR = 1.73, 95% CI = 1.35-2.22, p < 0.001) and without complications (OR = 1.81, 95% CI = 1.47-2.22, p < 0.001). This association was still present after correcting for demographic and clinical factors. There were no increased odds of thrombosis observed in the obesity group., Conclusions: Our study found that obese heparin-induced thrombocytopenia subjects had higher odds of having a diabetes mellitus comorbidity, but did not have higher odds of thrombosis. Given obesity is considered a hypercoagulable state, further study may be needed to understand why obese subjects diagnosed with heparin-induced thrombocytopenia do not have higher rates of thrombosis., Competing Interests: The author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: Conrad Krawiec receives funding from the New England Journal of Medicine and Elsevier© Osmosis for educational materials and content., (© The Author(s) 2024.)- Published
- 2024
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18. Characteristics and Outcomes of Intrahospital Transfers from Neonatal Intensive Care to Pediatric Intensive Care Units.
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Mazur L, Veten A, Ceneviva G, Pradhan S, Zhu J, Thomas NJ, and Krawiec C
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- Humans, Retrospective Studies, Infant, Newborn, Male, Female, Infant, Child, Preschool, Critical Illness mortality, Critical Illness therapy, Child, Cardiovascular Diseases mortality, Severity of Illness Index, Critical Care statistics & numerical data, Respiratory Tract Diseases mortality, Respiratory Tract Diseases therapy, Intensive Care Units, Pediatric statistics & numerical data, Patient Transfer statistics & numerical data, Intensive Care Units, Neonatal, Hospital Mortality, Length of Stay statistics & numerical data
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Objective: Critically ill children may be transferred from the neonatal intensive care unit (NICU) to the pediatric intensive care unit (PICU) for further critical care, but the frequency and outcomes of this patient population are unknown. The aims of this study are to describe the characteristics and outcomes in patients transferred from NICU to PICUs. We hypothesized that a higher-than-expected mortality would be present for patients with respiratory or cardiovascular diagnoses that underwent a NICU to PICU transition and that specific factors (timing of transfer, illness severity, and critical care interventions) are associated with a higher risk of mortality in the cardiovascular group., Study Design: Retrospective analysis of Virtual Pediatric Systems, LLC (2011-2019) deidentified cardiovascular and respiratory NICU to PICU subject data. We evaluated demographics, PICU length of stay, procedures, disposition, and mortality scores. Pediatric Index of Mortality 2 (PIM2) score was utilized to determine the standardized mortality ratio (SMR)., Results: SMR of 4,547 included subjects (3,607 [79.3%] cardiovascular and 940 [20.7%] respiratory) was 1.795 (95% confidence interval: 1.62-1.97, p < 0.0001). Multivariable logistic regression analysis demonstrated transfer age (cardiovascular: odds ratio, 1.246 [1.10-1.41], p = 0.0005; respiratory: 1.254 [1.07-1.47], p = 0.0046) and PIM2 scores (cardiovascular: 1.404 [1.25-1.58], p < 0.0001; respiratory: 1.353 [1.08-1.70], p = 0.0095) were significantly associated with increased odds of mortality., Conclusion: In this present study, we found that NICU to PICU observed deaths were high and various factors, particularly transfer age, were associated with increased odds of mortality. While the type of patients evaluated in this study likely influenced mortality, further investigation is warranted to determine if transfer timing is also a factor., Key Points: · NICU patients may be transitioned to the PICU.. · NICU to PICU observed deaths were high.. · Transfer timing may be a factor.., Competing Interests: None declared., (Thieme. All rights reserved.)
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- 2024
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19. Retrospective Analysis of Burn Injuries in Children with Autism Spectrum Disorder.
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Mazur LE, Even KM, and Krawiec C
- Abstract
Children with neurodevelopmental disorders are at risk for burn injury, but the clinical outcomes, particularly mortality, are unknown in this patient population in the United States (U.S.). The main objectives of this study are to evaluate (1) subject characteristics; (2) burn injury type; (3) clinical care provided; and (4) mortality in children with autism spectrum disorder (ASD), hypothesizing that this patient population has similar mortality and critical care management requirements when compared to children without ASD. This is a retrospective observational cohort study utilizing the TriNetX ® electronic health record database of subjects aged 0 to 18 years with burn injury associated diagnostic codes. Data were analyzed for demographics, diagnostic, medication, procedural codes, and mortality. We analyzed 99,323 subjects (n, %) coded for a burn injury [3083 (3.1%) with ASD and 96,240 (96.9%) without ASD]. Children with ASD had a higher odds of 1-year all-cause mortality [1.9 (1.06, 3.40), p = 0.004], need for critical care services [1.88 (1.40, 2.52), p < 0.001], and mechanical ventilation [2.69 (1.74, 4.17), p < 0.001] compared to those without. Our study found that U.S. children with ASD who had a burn injury had a higher odds of mortality and critical care needs when compared to children without ASD. Future studies are needed to understand the impact of burn injuries and factors associated with mortality in this patient population., (© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2024
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20. Evaluating Airway Management in Patients With Trisomy 21 in the PICU and Cardiac ICU: A Retrospective Cohort Study.
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Wilsterman EJ Jr, Nellis ME, Panisello J, Al-Subu A, Breuer R, Kimura D, Krawiec C, Mallory PP, Nett S, Owen E, Parsons SJ, Sanders RC Jr, Garcia-Marcinkiewicz A, Napolitano N, Shults J, Nadkarni VM, and Nishisaki A
- Subjects
- Child, Humans, Adolescent, Retrospective Studies, Intensive Care Units, Pediatric, Intubation, Intratracheal adverse effects, Airway Management, Down Syndrome complications, Laryngoscopes
- Abstract
Objectives: Children with trisomy 21 often have anatomic and physiologic features that may complicate tracheal intubation (TI). TI in critically ill children with trisomy 21 is not well described. We hypothesize that in children with trisomy 21, TI is associated with greater odds of adverse airway outcomes (AAOs), including TI-associated events (TIAEs), and peri-intubation hypoxemia (defined as > 20% decrease in pulse oximetry saturation [Sp o2 ])., Design: Retrospective database study using the National Emergency Airway Registry for Children (NEAR4KIDS)., Setting: Registry data from 16 North American PICUs and cardiac ICUs (CICUs), from January 2014 to December 2020., Patients: A cohort of children under 18 years old who underwent TI in the PICU or CICU from in a NEAR4KIDS center. We identified patients with trisomy 21 and selected matched cohorts within the registry., Interventions: None., Measurements and Main Results: We included 8401 TIs in the registry dataset. Children with trisomy 21 accounted for 274 (3.3%) TIs. Among those with trisomy 21, 84% had congenital heart disease and 4% had atlantoaxial instability. Cervical spine protection was used in 6%. The diagnosis of trisomy 21 (vs. without) was associated with lower median weight 7.8 (interquartile range [IQR] 4.5-14.7) kg versus 10.6 (IQR 5.2-25) kg ( p < 0.001), and more higher percentage undergoing TI for oxygenation (46% vs. 32%, p < 0.001) and ventilation failure (41% vs. 35%, p = 0.04). Trisomy 21 patients had more difficult airway features (35% vs. 25%, p = 0.001), including upper airway obstruction (14% vs. 8%, p = 0.001). In addition, a greater percentage of trisomy 21 patients received atropine (34% vs. 26%, p = 0.004); and, lower percentage were intubated with video laryngoscopy (30% vs. 37%, p = 0.023). After 1:10 (trisomy 21:controls) propensity-score matching, we failed to identify an association difference in AAO rates (absolute risk difference -0.6% [95% CI -6.1 to 4.9], p = 0.822)., Conclusions: Despite differences in airway risks and TI approaches, we have not identified an association between the diagnosis of trisomy 21 and higher AAOs., Competing Interests: Drs. Nishisaki and Nadkarni and Ms. Napolitano’s institution received funding from the National Institute of Child Health and Development, Agency for Healthcare Research and Quality (AHRQ), and Chiesi, USA. They received support for article research from the AHRQ. Dr. Nadkarni serves as President of the Society of Critical Care Medicine (SCCM) 2023–2024. The views presented in this article are his own, and are not intended to represent the views of the SCCM. Dr. Al-Subu received funding from the American Physician Institute. Dr. Krawiec received funding from NEJM Healer Cases and Elsevier Osmosis. Dr. Napolitano received funding from Drager Medical; their institution received funding from Drager, Timpel, Actuated Medical, and Vero-Biotech. Dr. Shults’ institution received funding from the National Institutes of Health (NIH) (R18HS024511); they received support for article research from the NIH. The remaining authors have disclosed that they do not have any potential conflicts of interest., (Copyright © 2024 by the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies.)
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- 2024
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21. Acute kidney injury in hospitalized children with proteinuria: A multicenter retrospective analysis.
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Baggett KH, Manghi T, Walter V, Thomas NJ, Freeman MA, and Krawiec C
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- Child, Humans, Anti-Bacterial Agents therapeutic use, Hospital Mortality, Proteinuria complications, Retrospective Studies, Risk Factors, Child, Preschool, Adolescent, Acute Kidney Injury etiology, Child, Hospitalized
- Abstract
Background and Objective: Acute kidney injury (AKI) is a common complication in hospitalized pediatric patients. Previous studies focused on adults found that proteinuria detected during an admission urinalysis is fit to serve as an indicator for AKI and associated clinical outcomes. The objective of this study is to evaluate if proteinuria on the first day of hospital services in hospitalized children is associated with AKI, need for renal replacement therapy, shock and/or antibiotic use, critical care services, and all-cause mortality at 30 days, hypothesizing that it is associated with these outcomes., Methods: This is a retrospective cohort study using TriNetX electronic health record data of patients 2 to 18 years of age who underwent urinalysis laboratory testing on hospital admission, had three subsequent days of hospital or critical care services billing codes and creatinine laboratory values, and no pre-existing renal-related complex chronic condition. This study evaluated for the frequency, odds, and severity of AKI as defined by Kidney Disease: Improving Global Outcomes modified criteria and assessed for associated clinical outcomes., Results: This study included 971 pediatric subjects [435 (44.7%) with proteinuria]. Proteinuria on the first day of hospital services was associated with an increased odds for higher severity AKI on any day of hospitalization (odds ratio [OR] 2.41, CI 1.8-3.23, p<0.001), need for renal replacement therapy (OR 4.58, CI 1.69-12.4, p = 0.001), shock and/or antibiotic use (OR 1.34, CI 1.03-1.75, p = 0.033), and all-cause mortality at 30 days post-admission (OR 10.0, CI 1.25-80.5, p = 0.013)., Conclusion: Children with proteinuria on the first day of hospital care services may have an increased odds of higher severity AKI, need for renal replacement therapy, shock and/or antibiotic use, and all-cause mortality at 30 days post-admission, with no significant association found for critical care services, mechanical intubation, or inotrope or vasopressor use., Competing Interests: “Conrad Krawiec receives funding from the New England Journal of Medicine and Elsevier © Osmosis for educational materials and content. The other author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. This does not alter our adherence to PLOS ONE policies on sharing data and materials.”, (Copyright: © 2024 Baggett et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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22. Outcomes of critically ill children with pre-existing mental health conditions.
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Krawiec C, Cash M, Ceneviva G, Tian Z, Zhou S, and Thomas NJ
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Importance: Critically ill children with pre-existing mental health conditions may have an increased risk of poor health outcomes., Objective: We aimed to evaluate if pre-existing mental health conditions in critically ill pediatric patients would be associated with worse clinical outcomes, compared to children with no documented mental health conditions., Methods: This retrospective observational cohort study utilized the TriNetX electronic health record database of critically ill subjects aged 12-18 years. Data were analyzed for demographics, pre-existing conditions, diagnostic, medication, procedural codes, and mortality., Results: From a dataset of 102 027 critically ill children, we analyzed 1999 subjects (284 [14.2%] with a pre-existing mental health condition and 1715 [85.8%] with no pre-existing mental health condition). Multivariable analysis demonstrated that death within one year was associated with the presence of pre-existing mental health conditions (odds ratio 8.97 [3.48-23.15], P < 0.001), even after controlling for the presence of a complex chronic condition., Interpretation: The present study demonstrates that the presence of pre-existing mental health conditions was associated with higher odds of death within 1 year after receiving critical care. However, the confidence interval was wide and hence, the findings are inconclusive. Future studies with a larger sample size may be necessary to evaluate the true long-term impact of children with pre-existing mental health conditions who require critical care services., Competing Interests: Conrad Krawiec receives funding from the New England Journal of Medicine and Elsevier Osmosis for educational materials and content. The other authors declare no conflict of interest., (© 2024 Chinese Medical Association. Pediatric Investigation published by John Wiley & Sons Australia, Ltd on behalf of Futang Research Center of Pediatric Development.)
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- 2024
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23. Ketamine Use in the Intubation of Critically Ill Children with Neurological Indications: A Multicenter Retrospective Analysis.
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Loi MV, Lee JH, Huh JW, Mallory P, Napolitano N, Shults J, Krawiec C, Shenoi A, Polikoff L, Al-Subu A, Sanders R Jr, Toal M, Branca A, Glater-Welt L, Ducharme-Crevier L, Breuer R, Parsons S, Harwayne-Gidansky I, Kelly S, Motomura M, Gladen K, Pinto M, Giuliano J Jr, Bysani G, Berkenbosch J, Biagas K, Rehder K, Kasagi M, Lee A, Jung P, Shetty R, Nadkarni V, and Nishisaki A
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- Child, Humans, Adolescent, Retrospective Studies, Critical Illness therapy, Intubation, Intratracheal adverse effects, Hypoxia, Ketamine adverse effects, Respiratory Insufficiency etiology
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Background: Ketamine has traditionally been avoided for tracheal intubations (TIs) in patients with acute neurological conditions. We evaluate its current usage pattern in these patients and any associated adverse events., Methods: We conducted a retrospective observational cohort study of critically ill children undergoing TI for neurological indications in 53 international pediatric intensive care units and emergency departments. We screened all intubations from 2014 to 2020 entered into the multicenter National Emergency Airway Registry for Children (NEAR4KIDS) registry database. Patients were included if they were under the age of 18 years and underwent TI for a primary neurological indication. Usage patterns and reported periprocedural composite adverse outcomes (hypoxemia < 80%, hypotension/hypertension, cardiac arrest, and dysrhythmia) were noted., Results: Of 21,562 TIs, 2,073 (9.6%) were performed for a primary neurological indication, including 190 for traumatic brain injury/trauma. Patients received ketamine in 495 TIs (23.9%), which increased from 10% in 2014 to 41% in 2020 (p < 0.001). Ketamine use was associated with a coindication of respiratory failure, difficult airway history, and use of vagolytic agents, apneic oxygenation, and video laryngoscopy. Composite adverse outcomes were reported in 289 (13.9%) Tis and were more common in the ketamine group (17.0% vs. 13.0%, p = 0.026). After adjusting for location, patient age and codiagnoses, the presence of respiratory failure and shock, difficult airway history, provider demographics, intubating device, and the use of apneic oxygenation, vagolytic agents, and neuromuscular blockade, ketamine use was not significantly associated with increased composite adverse outcomes (adjusted odds ratio 1.34, 95% confidence interval CI 0.99-1.81, p = 0.057). This paucity of association remained even when only neurotrauma intubations were considered (10.6% vs. 7.7%, p = 0.528)., Conclusions: This retrospective cohort study did not demonstrate an association between procedural ketamine use and increased risk of peri-intubation hypoxemia and hemodynamic instability in patients intubated for neurological indications., (© 2023. Springer Science+Business Media, LLC, part of Springer Nature and Neurocritical Care Society.)
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- 2024
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24. Adverse Tracheal Intubation Events in Critically Ill Underweight and Obese Children: Retrospective Study of the National Emergency Airway for Children Registry (2013-2020).
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Gladen KM, Tellez D, Napolitano N, Edwards LR, Sanders RC Jr, Kojima T, Malone MP, Shults J, Krawiec C, Ambati S, McCarthy R, Branca A, Polikoff LA, Jung P, Parsons SJ, Mallory PP, Komeswaran K, Page-Goertz C, Toal MC, Bysani GK, Meyer K, Chiusolo F, Glater-Welt LB, Al-Subu A, Biagas K, Hau Lee J, Miksa M, Giuliano JS Jr, Kierys KL, Talukdar AM, DeRusso M, Cucharme-Crevier L, Adu-Arko M, Shenoi AN, Kimura D, Flottman M, Gangu S, Freeman AD, Piehl MD, Nuthall GA, Tarquinio KM, Harwayne-Gidansky I, Hasegawa T, Rescoe ES, Breuer RK, Kasagi M, Nadkarni VM, and Nishisaki A
- Subjects
- Infant, Child, Humans, Infant, Newborn, Child, Preschool, Adolescent, Retrospective Studies, Overweight etiology, Thinness complications, Thinness epidemiology, Intubation, Intratracheal adverse effects, Intubation, Intratracheal methods, Hypoxia epidemiology, Hypoxia etiology, Registries, Critical Illness, Pediatric Obesity complications, Pediatric Obesity epidemiology
- Abstract
Objectives: Extremes of patient body mass index are associated with difficult intubation and increased morbidity in adults. We aimed to determine the association between being underweight or obese with adverse airway outcomes, including adverse tracheal intubation (TI)-associated events (TIAEs) and/or severe peri-intubation hypoxemia (pulse oximetry oxygen saturation < 80%) in critically ill children., Design/setting: Retrospective cohort using the National Emergency Airway for Children registry dataset of 2013-2020., Patients: Critically ill children, 0 to 17 years old, undergoing TI in PICUs., Interventions: None., Measurements and Main Results: Registry data from 24,342 patients who underwent TI between 2013 and 2020 were analyzed. Patients were categorized using the Centers for Disease Control and Prevention weight-for-age chart: normal weight (5th-84th percentile) 57.1%, underweight (< 5th percentile) 27.5%, overweight (85th to < 95th percentile) 7.2%, and obese (≥ 95th percentile) 8.2%. Underweight was most common in infants (34%); obesity was most common in children older than 8 years old (15.1%). Underweight patients more often had oxygenation and ventilation failure (34.0%, 36.2%, respectively) as the indication for TI and a history of difficult airway (16.7%). Apneic oxygenation was used more often in overweight and obese patients (19.1%, 19.6%) than in underweight or normal weight patients (14.1%, 17.1%; p < 0.001). TIAEs and/or hypoxemia occurred more often in underweight (27.1%) and obese (24.3%) patients ( p < 0.001). TI in underweight children was associated with greater odds of adverse airway outcome compared with normal weight children after adjusting for potential confounders (underweight: adjusted odds ratio [aOR], 1.09; 95% CI, 1.01-1.18; p = 0.016). Both underweight and obesity were associated with hypoxemia after adjusting for covariates and site clustering (underweight: aOR, 1.11; 95% CI, 1.02-1.21; p = 0.01 and obesity: aOR, 1.22; 95% CI, 1.07-1.39; p = 0.002)., Conclusions: In underweight and obese children compared with normal weight children, procedures around the timing of TI are associated with greater odds of adverse airway events., Competing Interests: Ms. Napolitano’s, Dr. Shults’s, Dr. Nadkarni’s, and Dr. Nishisaki’s institution received funding from the Agency for Healthcare Research and Quality (R18HS024511). Ms. Napolitano’s institution received funding from Dräger, Actuated Medical, and Philips Respironics; they received support for article research from Timpel and VERO-Biotech. Dr. Krawiec received funding from New England Journal of Medicine Healer Cases and Carle Illinois School of Medicine Admissions Committee. Dr. Polikoff received funding from Novavax. Dr. Lee’s institution received funding from National Research Medical Council, Singapore. Dr. Shenoi is an elected member of the Society of Critical Care Medicine (SCCM) Council of the SCCM. Dr. Peihl disclosed that he is founder and Chief Medical Officer of 410 Medical; his institution received funding the Department of Defense (grants: USSOCOM W81XWH-22-C-0002, USAF SBIR AF212-CSO1 Phase II, F2-15653 USAF, SBIR AF211-CSO1 Phase II, F2-15254). Dr. Hasegawa disclosed work for hire. Dr. Nishisaki’s institution received funding from Chiesi USA, AHRA, and the National Institute of Child Health and Human Development. The remaining authors have disclosed that they do not have any potential conflicts of interest., (Copyright © 2023 by the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies.)
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- 2024
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25. A multicenter retrospective electronic health record database evaluation of subjects with Mycoplasma genitalium.
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Green E, Dum R, Shook J, and Krawiec C
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- Adult, Adolescent, Humans, Female, Child, Young Adult, Male, Anti-Bacterial Agents, Azithromycin therapeutic use, Azithromycin pharmacology, Moxifloxacin therapeutic use, Moxifloxacin pharmacology, Retrospective Studies, Doxycycline pharmacology, Doxycycline therapeutic use, Electronic Health Records, Macrolides therapeutic use, Macrolides pharmacology, Drug Resistance, Bacterial genetics, Prevalence, Mycoplasma genitalium genetics, Mycoplasma Infections diagnosis, Mycoplasma Infections drug therapy, Mycoplasma Infections epidemiology
- Abstract
Background: Mycoplasma genitalium is a sexually transmitted infection (STI) increasing in prevalence. The recent availability of nucleic acid amplification tests (NAATs) has led to updated diagnostic and treatment guidelines. As medication therapy experts, pharmacists can facilitate appropriate antimicrobial selection and stewardship and optimize best patient-care practices in the setting of M. genitalium infection., Objective: This study aimed to evaluate patient demographics, therapeutic approaches, and complications of patients with laboratory evidence of M. genitalium hypothesizing that younger adolescent females are affected by this organism, receive suboptimal treatment, and have more complications than adults., Methods: This was a retrospective cohort study using TriNetX multicenter electronic health record data of subjects aged 12 years and older with evidence of M. genitalium DNA detected via NAATs. The cohort was divided into 2 age groups: adolescents (12-21 years) and adults (older than 21 years). We evaluated age, sex, race, ethnicity, diagnostic codes, and medication codes., Results: Our study included 1126 subjects (192 adolescents [17.1%] and 934 adults [82.9%]) who tested positive for M. genitalium. Subjects in the adolescent group had higher odds of being women (2.52 [1.80, 3.54], P < 0.001), having inflammatory diseases of female pelvic organs diagnostic codes (1.51 [1.06, 2.16], P = 0.025), increased odds of azithromycin prescription (1.70 [1.17, 2.48], P = 0.005), and decreased odds of moxifloxacin prescription (0.41 [0.26, 0.64], P < 0.001)., Conclusions: Our study revealed a higher prevalence of M. genitalium infection in adults and adolescents with increased odds of receiving azithromycin and decreased odds of receiving moxifloxacin. Both age groups had decreased odds of receiving doxycycline compared with azithromycin despite guidelines recommending initial empirical antibiotic treatment with doxycycline and growing macrolide resistance. Suboptimal treatment of this infection may lead to lifelong complications. Pharmacists may provide crucial guidance and education to both patients and health care providers regarding appropriate treatment for M. genitalium., Competing Interests: Disclosure The authors declared no potential conflicts of interest with respect to the research, authorship, or publication of this article. Conrad Krawiec receives funding from the New England Journal of Medicine and Elsevier Osmosis for educational materials and content., (Copyright © 2023 American Pharmacists Association®. Published by Elsevier Inc. All rights reserved.)
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- 2024
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26. Safety of primary nasotracheal intubation in the pediatric intensive care unit (PICU).
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Ducharme-Crevier L, Furlong-Dillard J, Jung P, Chiusolo F, Malone MP, Ambati S, Parsons SJ, Krawiec C, Al-Subu A, Polikoff LA, Napolitano N, Tarquinio KM, Shenoi A, Talukdar A, Mallory PP, Giuliano JS Jr, Breuer RK, Kierys K, Kelly SP, Motomura M, Sanders RC Jr, Freeman A, Nagai Y, Glater-Welt LB, Wilson J, Loi M, Adu-Darko M, Shults J, Nadkarni V, Emeriaud G, and Nishisaki A
- Abstract
Background: Nasal tracheal intubation (TI) represents a minority of all TI in the pediatric intensive care unit (PICU). The risks and benefits of nasal TI are not well quantified. As such, safety and descriptive data regarding this practice are warranted., Methods: We evaluated the association between TI route and safety outcomes in a prospectively collected quality improvement database (National Emergency Airway Registry for Children: NEAR4KIDS) from 2013 to 2020. The primary outcome was severe desaturation (SpO
2 > 20% from baseline) and/or severe adverse TI-associated events (TIAEs), using NEAR4KIDS definitions. To balance patient, provider, and practice covariates, we utilized propensity score (PS) matching to compare the outcomes of nasal vs. oral TI., Results: A total of 22,741 TIs [nasal 870 (3.8%), oral 21,871 (96.2%)] were reported from 60 PICUs. Infants were represented in higher proportion in the nasal TI than the oral TI (75.9%, vs 46.2%), as well as children with cardiac conditions (46.9% vs. 14.4%), both p < 0.001. Severe desaturation or severe TIAE occurred in 23.7% of nasal and 22.5% of oral TI (non-adjusted p = 0.408). With PS matching, the prevalence of severe desaturation and or severe adverse TIAEs was 23.6% of nasal vs. 19.8% of oral TI (absolute difference 3.8%, 95% confidence interval (CI): - 0.07, 7.7%), p = 0.055. First attempt success rate was 72.1% of nasal TI versus 69.2% of oral TI, p = 0.072. With PS matching, the success rate was not different between two groups (nasal 72.2% vs. oral 71.5%, p = 0.759)., Conclusion: In this large international prospective cohort study, the risk of severe peri-intubation complications was not significantly higher. Nasal TI is used in a minority of TI in PICUs, with substantial differences in patient, provider, and practice compared to oral TI.A prospective multicenter trial may be warranted to address the potential selection bias and to confirm the safety of nasal TI., Competing Interests: Competing interestsThe authors declare that they have no competing interests., (© The Author(s) 2024.)- Published
- 2024
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27. A Multicenter Retrospective Database Evaluation of Pediatric Patients Diagnosed With Tinea Capitis.
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Mazur L, Tian Z, Shedlock K, Zurca AD, Zhou S, Thomas NJ, and Krawiec C
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- Child, Humans, Retrospective Studies, Surveys and Questionnaires, Antifungal Agents therapeutic use, Tinea Capitis diagnosis, Tinea Capitis epidemiology, Tinea Capitis drug therapy
- Abstract
Purpose: Tinea capitis is a common pediatric superficial dermatophyte infection associated with lower socioeconomic status, overcrowded environments, and poor hygiene internationally. Nevertheless, to the authors' knowledge, no studies in the United States have reported an association between tinea capitis diagnoses and diagnostic codes for social determinants of health (SDOH). The objectives of the present study were to analyze the diagnostic and treatment approach and frequency of SDOH diagnostic codes in order to assess the presence of racial disparities in the treatment of pediatric patients aged 0 to 18 years diagnosed with tinea capitis., Methods: This study comprised a retrospective analysis using the TriNetX electronic health record database of de-identified pediatric tinea capitis data in ambulatory and emergency settings. The data evaluated demographics, SDOH diagnostic codes, medication codes, and procedure codes., Results: Analysis of 19,677 patients (17,471 [88.8%] ambulatory and 2206 [11.2%] emergency encounters) demonstrated that a low frequency of patients had a confirmatory test for tinea capitis (ie, potassium hydroxide prep or fungal culture; 5.5%), prescription for dual therapy (25.2%), or SDOH diagnostic codes (5.5%). Patients with races classified as Black (odds ratio = 0.48, 95% confidence interval = 0.41-0.57, p < 0.001) and "other" (odds ratio = 0.52, 95% confidence interval = 0.33-0.81, p = 0.004) had a lower likelihood of having an ambulatory encounter, but a higher likelihood of receiving dual therapy., Conclusions: This study found that diagnostic testing, dual therapy, and SDOH diagnostic codes were underutilized for pediatric patients diagnosed with tinea capitis. In addition, patients of races classified as Black and "other" were more likely to be diagnosed in emergency encounters, but had a higher likelihood of receiving dual therapy regardless of encounter type. Further research is needed to determine how to improve the management of tinea capitis and better understand its relationship with SDOH., Competing Interests: Conflicts of Interest Conrad Krawiec receives funding from the New England Journal of Medicine and Elsevier for educational materials and content.
- Published
- 2023
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28. Retrospective Analysis of Sugammadex Use in Adolescent Females on Progestin-Containing Contraceptives.
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Hodge C, Myers A, Ceneviva GD, Zhao R, Zhou S, Thomas NJ, and Krawiec C
- Subjects
- Female, Adolescent, Humans, Infant, Sugammadex, Retrospective Studies, Cohort Studies, Steroids, Contraceptive Agents, Progestins adverse effects
- Abstract
Study Objective: Sugammadex, a novel neuromuscular blockade reversal agent, functions as a steroid binder postulated to decrease hormone exposure used within progestin-containing contraceptive medications. Thus, alternative non-medication contraceptive methods are recommended to prevent unplanned pregnancies. The study aims were to evaluate sugammadex use in adolescent females prescribed a progestin-containing contraceptive and positive pregnancy screening frequency. We hypothesized that sugammadex use is infrequent in this population and no pregnancy screens would be positive., Methods: This is a retrospective observational cohort study utilizing the TriNetX electronic health record database of female subjects aged 12-21 years reported to be prescribed sugammadex. The data collected were analyzed for demographic characteristics, International Classification of Diseases 9th and 10th edition diagnostics, medication, procedural codes, progestin-containing medication timing, and timing of pregnancy screening., Results: We included 18,686 subjects (contraceptive group, 2017 [10.8%], and no contraceptive group, 16,669 [89.2%]). Both groups had similar frequencies of pregnancy screening (contraceptive group, 54 [2.7%], vs no contraceptive group, 366 [2.2%]). Of the contraceptive group, 1 (0.05%) subject, 17 years of age, was confirmed to have a positive pregnancy screen 35 days after surgery., Conclusion: We found that sugammadex may be administered to adolescent females prescribed progestin-containing contraceptives, but positive pregnancy screens are rare. Effective counseling, use of nonhormonal contraceptives 7 days after sugammadex administration, and the theoretical reproductive risks of this agent may have contributed to these findings. Continued counseling after sugammadex use in the adolescent population is recommended to avoid the occurrence of unplanned pregnancies., Competing Interests: Conflict of Interest Statement CK receives funding from the New England Journal of Medicine for educational materials and content. The project described was supported by the National Center for Advancing Translational Sciences, National Institutes of Health, through Grant UL1 TR002014, including TriNetX network access. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. The other authors declare no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (Copyright © 2023 North American Society for Pediatric and Adolescent Gynecology. Published by Elsevier Inc. All rights reserved.)
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- 2023
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29. Multicenter retrospective database evaluation of Takotsubo syndrome in subjects undergoing catheter ablation for atrial fibrillation.
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Sinha N, Tian Z, Zhou S, Thomas NJ, and Krawiec C
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Background: Intracardiac catheter ablation for atrial fibrillation with pulmonary vein isolation may result in Takotsubo syndrome (TS), but the frequency, predisposing factors (age, sex, mental health disorders), and outcomes are currently unknown. This study sought to assess the frequency, predisposing factors, and outcomes of subjects who underwent intracardiac catheter ablation for atrial fibrillation with pulmonary vein isolation and were diagnosed with TS., Methods: This was a retrospective observational cohort study utilizing TriNetX® electronic health record (EHR) data. We included subjects aged older than 18 years who underwent intracardiac catheter ablation for atrial fibrillation with pulmonary vein isolation. The study population was divided into two groups (no TS diagnostic code presence and TS diagnostic code presence). We analyzed the distributions of age, sex, race, diagnostic codes, common terminology procedures (CPT), and vasoactive medication codes and examined mortality rate within 30 days., Results: We included 69,116 subjects. Of these, 27 (0.04%) had a TS diagnostic code, the cohort was comprised mostly of females [17 (63.0%)], and 1 (3.7%) death within 30 days was reported. There were no significant differences in age and frequency of mental health disorders between those patients in TS and non-TS cohorts. Adjusting for age, sex, race, ethnicity, patient regionality, and mental health disorder diagnostic code, those patients who developed TS had a significantly higher odds of dying in 30 days after catheter ablation compared to those without TS (OR = 15.97, 95% CI: 2.10-121.55, p = .007)., Conclusions: Approximately 0.04% of subjects who underwent intracardiac catheter ablation of atrial fibrillation by pulmonary vein isolation had a subsequent diagnostic code of TS. Further study is needed to determine whether there are predisposing factors associated with the development of TS in subjects who undergo catheter ablation of atrial fibrillation by pulmonary vein isolation., Competing Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. Conrad Krawiec receives funding from the New England Journal of Medicine for educational materials and content., (© 2023 The Authors. Journal of Arrhythmia published by John Wiley & Sons Australia, Ltd on behalf of Japanese Heart Rhythm Society.)
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- 2023
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30. Odds of Cardiometabolic Diseases and Medications in Children With Cerebral Palsy.
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Dum R, Walter V, Thomas NJ, and Krawiec C
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- Humans, Child, Overweight epidemiology, Thinness epidemiology, Cohort Studies, Obesity epidemiology, Body Mass Index, Cerebral Palsy complications, Cerebral Palsy epidemiology, Hypertension
- Abstract
Introduction/objectives: Individuals with cerebral palsy may be at risk of obesity, but outcomes and risk factors are understudied. The study objectives are to evaluate the frequency of body mass index (BMI) weight categories of individuals with cerebral palsy and the odds of cardiometabolic-specific diseases and medications. We hypothesize subjects with cerebral palsy and an increased body mass index will have higher odds of cardiometabolic specific diseases and medications., Methods: This is a retrospective observational cohort study utilizing TriNetX, an electronic health record database, in subjects with cerebral palsy aged 2-18 years with an available body mass index. The study population was divided into 4 body mass index percentile categories, underweight (<5th body mass index percentile), healthy weight (≥5th to <85th percentile), overweight (≥85th to <95th percentile), and obese (≥95th percentile), and the odds of the following variables were evaluated: diagnostic codes and medication codes. We computed the odds ratio to test for associations between the body mass index categories and the variables of interest., Results: A total of 5993 subjects were included: underweight (251, 4.2%), healthy weight (2390, 39.9%), overweight (943, 15.7%), and obese (2409, 40.2%). Obese subjects had a higher odds of asthma, diabetes mellitus, hypertension, and sleep apnea when compared to the health weight group., Conclusions: This study found patients with cerebral palsy classified as obese had higher odds of cardiometabolic comorbidity and medication codes that influence weight. Body mass index measurements are limited in this population but may be used cautiously to evaluate the body type of children with cerebral palsy and monitor cardiometabolic-associated comorbidity occurrence.
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- 2023
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31. Effect of apneic oxygenation with intubation to reduce severe desaturation and adverse tracheal intubation-associated events in critically ill children.
- Author
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Napolitano N, Polikoff L, Edwards L, Tarquinio KM, Nett S, Krawiec C, Kirby A, Salfity N, Tellez D, Krahn G, Breuer R, Parsons SJ, Page-Goertz C, Shults J, Nadkarni V, and Nishisaki A
- Subjects
- Child, Child, Preschool, Humans, Infant, Hypoxia etiology, Oxygen, Respiration, Artificial methods, Critical Illness epidemiology, Critical Illness therapy, Intubation, Intratracheal adverse effects, Intubation, Intratracheal methods
- Abstract
Background: Determine if apneic oxygenation (AO) delivered via nasal cannula during the apneic phase of tracheal intubation (TI), reduces adverse TI-associated events (TIAEs) in children., Methods: AO was implemented across 14 pediatric intensive care units as a quality improvement intervention during 2016-2020. Implementation consisted of an intubation safety checklist, leadership endorsement, local champion, and data feedback to frontline clinicians. Standardized oxygen flow via nasal cannula for AO was as follows: 5 L/min for infants (< 1 year), 10 L/min for young children (1-7 years), and 15 L/min for older children (≥ 8 years). Outcomes were the occurrence of adverse TIAEs (primary) and hypoxemia (SpO
2 < 80%, secondary)., Results: Of 6549 TIs during the study period, 2554 (39.0%) occurred during the pre-implementation phase and 3995 (61.0%) during post-implementation phase. AO utilization increased from 23 to 68%, p < 0.001. AO was utilized less often when intubating infants, those with a primary cardiac diagnosis or difficult airway features, and patient intubated due to respiratory or neurological failure or shock. Conversely, AO was used more often in TIs done for procedures and those assisted by video laryngoscopy. AO utilization was associated with a lower incidence of adverse TIAEs (AO 10.5% vs. without AO 13.5%, p < 0.001), aOR 0.75 (95% CI 0.58-0.98, p = 0.03) after adjusting for site clustering (primary analysis). However, after further adjusting for patient and provider characteristics (secondary analysis), AO utilization was not independently associated with the occurrence of adverse TIAEs: aOR 0.90, 95% CI 0.72-1.12, p = 0.33 and the occurrence of hypoxemia was not different: AO 14.2% versus without AO 15.2%, p = 0.43., Conclusion: While AO use was associated with a lower occurrence of adverse TIAEs in children who required TI in the pediatric ICU after accounting for site-level clustering, this result may be explained by differences in patient, provider, and practice factors. Trial Registration Trial not registered., (© 2023. The Author(s).)- Published
- 2023
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32. A retrospective analysis of complications associated with postpartum hemorrhage up to 1 year postpartum in mothers with and without a pre-existing mental health diagnosis.
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Endres K, Razavi N, Tian Z, Zhou S, Krawiec C, and Jasani S
- Subjects
- Pregnancy, Female, Humans, Retrospective Studies, Mental Health, Haloperidol, Postpartum Period, Postpartum Hemorrhage epidemiology, Postpartum Hemorrhage etiology
- Abstract
Background/objectives: There is limited research on the associated immediate and long-term outcomes of postpartum hemorrhage. Mothers with a pre-existing psychiatric disease prior to delivery may be especially vulnerable to postpartum hemorrhage outcomes but little is known on this topic. Barriers to studying this population exist and add to knowledge gaps. The goal of this study is to determine the clinical characteristics and frequency of complications within 1 year of a postpartum hemorrhage diagnosis and the psychiatric sequelae within 7 days of a postpartum hemorrhage diagnosis in mothers with a pre-existing mental health diagnosis prior to delivery versus those without., Methods/design: This is a multicenter retrospective observational cohort study using TriNetX, a de-identified electronic health record database. The following electronic health record data were collected and evaluated in postpartum females who were billed for either a vaginal or cesarean delivery: age, race, ethnicity, diagnostic codes, medication codes, and number of deaths., Results: We included 10,649 subjects (6994 (65.7%) no mental health diagnosis and 3655 (34.3%) pre-existing mental health diagnosis). Haloperidol administration (118 (3.2%) versus 129 (1.8%), p < 0.001) was more prevalent in subjects with a pre-existing mental health diagnosis. Adjusting for demographics, pre-existing mental health diagnoses were associated with complications within 1 year after postpartum hemorrhage diagnosis (OR = 1.39, 95% CI: 1.26-1.52, p < 0.001)., Conclusion: Having a mental health disorder history is associated with a higher odds of developing subsequent complications within 1 year of postpartum hemorrhage diagnosis. Mothers with a pre-existing mental health disorder have a significantly higher frequency of certain severe postpartum hemorrhage sequelae, including acute respiratory distress syndrome, retained placenta, sickle cell crisis, and need for mechanical ventilation/tracheostomy up to 1 year after delivery. Medications such as haloperidol were ordered more frequently within 7 days of a postpartum hemorrhage diagnosis in these mothers as well. Further research is needed to understand and manage the unique consequences of postpartum hemorrhage in this vulnerable maternal population.
- Published
- 2023
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33. Impact of the COVID-19 Pandemic on Diagnostic Frequency of Febrile Seizures: An Electronic Health Record Database Observational Study.
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Cadet K, Ceneviva GD, Walter V, Thomas NJ, and Krawiec C
- Abstract
Background and Purpose: Febrile seizures are common in children and are associated with viral infection. Mitigation strategies implemented during the coronavirus disease 2019 (COVID-19) pandemic have slowed the spread of all viral illnesses potentially impacting febrile seizure frequency. The objective of this study is to assess the impact of COVID-19 mitigation strategies on the diagnostic frequency of febrile seizures., Methods: This was a retrospective observational cohort study utilizing TriNetX ® electronic health record (EHR) data. We included subjects aged 0 to 5 years of age reported to have a febrile seizure diagnosis. After the query, the study population was divided into 2 groups [pre-COVID-19 (April 1st, 2019 until March 31st, 2020) and COVID-19 (April 1st, 2020 until March 31st, 2021). We analyzed the following data: age, sex, race, diagnostic, medication, and procedural codes., Results: During the pre-COVID time frame, emergency or inpatient encounters made up 688,704 subjects aged 0 to 5 years in the TriNetx database, while in the COVID-19 pandemic time frame, it made up of 368 627 subjects. Febrile seizure diagnosis frequency decreased by 36.1% [2696 during COVID-19 vs 7462 during the pre-COVID-19] and a higher proportion of status epilepticus was coded [72 (2.7%) vs 120 (1.6%)] ( P < .001) during the COVID-19 pandemic. Hospitalization, lumbar puncture, critical care services, mechanical ventilation procedural codes were similar between the 2 cohorts. Antimicrobial use was higher in the pre-COVID-19 pandemic group [424 (15.7%) vs 1603 (21.5%)] ( P < .001)., Conclusions: Less children were diagnosed with febrile seizures during the COVID-19 pandemic, but a higher proportion were coded to have the complex subtype. The medical interventions required with the exception of antimicrobial use was similar. Further study is needed regarding mitigation strategies and its impact on pediatric diseases associated with viruses., Competing Interests: The author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: Conrad Krawiec receives funding from the New England Journal of Medicine for educational materials and content., (© The Author(s) 2022.)
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- 2023
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34. Current utilization of interosseous access in pediatrics: a population-based analysis using an EHR database, TriNetX.
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Hoskins M, Sefick S, Zurca AD, Walter V, Thomas NJ, and Krawiec C
- Abstract
Background: When central or peripheral intravenous access cannot be achieved in a timely manner, intraosseous (IO) access is recommended as a safe and equally effective alternative for pediatric resuscitation. IO usage and its complications in the pediatric population have been primarily studied in the setting of cardiac arrest. However, population-based studies identifying noncardiac indications and complications associated with different age groups are sparse., Results: This was a retrospective observational cohort study utilizing the TriNetX® electronic health record data. Thirty-seven hospitals were included in the data set with 1012 patients where an IO procedure code was reported in the emergency department or inpatient setting. The cohort was split into two groups, pediatric subjects < 1 year of age and those ≥ 1 year of age. A total incidence of IO line placement of 18 per 100,000 pediatric encounters was reported. Total mortality was 31.8%, with a higher rate of mortality seen in subjects < 1 year of age (39.2% vs 29.0%; p = 0.0028). A diagnosis of cardiac arrest was more frequent in subjects < 1 year of age (51.5% vs 38.0%; p = 0.002), and a diagnosis of convulsions was more frequent in those ≥ 1 of age (28.0% vs 13.8%; p <0.01). Overall, 29 (2.9%) subjects had at least one complication., Conclusions: More IOs were placed in subjects ≥ 1 year of age, and a higher rate of mortality was seen in subjects < 1 year of age. Lower frequencies of noncardiac diagnoses at the time of IO placement were found in both groups, highlighting IO may be underutilized in noncardiac settings such as convulsions, shock, and respiratory failure. Given the low rate of complications seen in both groups of our study, IO use should be considered early on for urgent vascular access, especially for children less than 1 year of age., (© 2022. The Author(s).)
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- 2022
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35. A Multicenter Retrospective Evaluation of Specialized Laboratory Investigations in the Workup of Pediatric Patients With New-Onset Supraventricular Tachycardia.
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Endres KM, Kierys K, Shang Y, Zhou S, Ceneviva GD, Thomas NJ, and Krawiec C
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- Female, Humans, Child, Aged, Retrospective Studies, Biomarkers, Tachycardia, Supraventricular diagnosis
- Abstract
Introduction: Specialized laboratory evaluation of supraventricular tachycardia in children may occur, but the utility is unknown. The study objectives are to assess the type, frequency, and results of specialized laboratory testing performed in pediatric patients presenting with new-onset supraventricular tachycardia. We hypothesized that when specialized laboratory testing occurs (particularly for cardiac failure, toxicologic, inflammatory, and thyroid diseases), the results are generally within normal limits., Methods: This is a retrospective descriptive study using an electronic health record database (TriNetX, Inc). We collected and evaluated the following data of subjects aged younger than 18 years with a first-time supraventricular tachycardia diagnosis: demographics, diagnostic codes, deaths, and laboratory codes/results (natriuretic peptide B, natriuretic peptide B prohormone N-terminal, troponin I, toxicology testing, inflammatory markers, and thyroid studies)., Results: A total of 621 subjects (524 [84.4%] without laboratory testing, 97 [15.6%] with laboratory testing) were included. Thyroid studies (65 [10.5%]) were the most frequent laboratory study performed followed by cardiovascular specific studies (35 [5.6%]), inflammatory markers (21 [3.4%]), and toxicology tests (10 [1.6%]) (P = .002). Obtained laboratory testing was more frequent with older subjects, females, and need for emergency, hospital, and critical care services., Discussion: Cardiac-specific and noncardiac laboratory testing is frequently ordered for pediatric patients who present with supraventricular tachycardia. Thyroid studies were the most common laboratory testing ordered, but abnormal results only occurred in less than a quarter of subjects. These findings may highlight a quality improvement opportunity for emergency nurses and practitioners in the practice of obtaining laboratory tests to better reflect high-value evidence-based care for this vulnerable population., (Copyright © 2022 Emergency Nurses Association. Published by Elsevier Inc. All rights reserved.)
- Published
- 2022
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36. Frequency and Results of Pregnancy Screening in Critically Ill Adolescents in Multiple Health Care Organizations.
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Roberts CM, Williams D, Ceneviva GD, Walter V, Thomas NJ, and Krawiec C
- Subjects
- Pregnancy, Female, Adolescent, Humans, Aged, Retrospective Studies, Mass Screening methods, Delivery of Health Care, Critical Illness, Pregnancy in Adolescence
- Abstract
Purpose: Adolescent females may undergo pregnancy screening while receiving critical care services, but the frequency and results are unknown. The objectives of this study are to evaluate patient characteristics, pregnancy screening frequency, and rate of positive pregnancy screens in adolescent females of childbearing age who require critical care services. We hypothesize that when adolescent pregnancy screening is performed in the critical care setting, it occurs in a higher frequency in older subjects., Methods: This is a multicenter retrospective observational cohort study utilizing TriNetX, an electronic health record database. The following electronic health record data were collected and evaluated in adolescent females aged 12-18 years and billed for critical care services: age, race, ethnicity, diagnostic codes, selected radiology and surgical procedure codes, number of deaths, pregnancy screening laboratory codes, and pregnancy screening results., Results: A total of 5,241 subjects (2,242 [42.8%] subjects for whom pregnancy screen was noted and 2,999 [57.2%] subjects for whom it was not noted) were included in this study. Subjects aged 15-18 years (odds ratio = 1.56, 95% confidence interval = 1.38-1.77, p value < .0001) and had Hispanic or Latina ethnicity (odds ratio = 1.46, 95% confidence interval = 1.28-1.66, p value < .0001) had a higher association with pregnancy screening. A positive pregnancy screen was identified in 18 (0.8%) subjects., Discussion: In our study, positive pregnancy screens were infrequent, not all subjects were screened, and there was an association between pregnancy screening and ethnicity. Because of the potential for screening bias, this study suggests that clinicians should strongly consider routine pregnancy screening for all females of childbearing age and that hospital policies should require this type of screening., (Copyright © 2022 Society for Adolescent Health and Medicine. Published by Elsevier Inc. All rights reserved.)
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- 2022
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37. Letter to the editor response.
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Krawiec C, Cadet K, Boegner J, Ceneviva GD, and Thomas NJ
- Published
- 2022
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38. Impact of Pediatric Intensive Care Unit Preadmission Huddle on Perceptions of Interprofessional Communication About Patient Safety.
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Perkowski C, Eldridge B, Zurca AD, Demartini TKM, Ceneviva GD, Williams D, Fang X, Zhou S, Thomas NJ, and Krawiec C
- Subjects
- Child, Communication, Humans, Intensive Care Units, Pediatric, Patient Care Team, Critical Illness therapy, Patient Safety
- Abstract
Background: Preadmission discussions in the study institution's pediatric intensive care unit are not standardized and admission plans were thought to be disjointed, leading to a perceived lack of organization and preparation for the arrival of a critically ill child., Objective: To evaluate the impact of a new, formalized preadmission pediatric intensive care unit interdisciplinary huddle on clinician perceptions of interprofessional communication. The hypothesis was that preadmission huddles would improve unit clinicians' perceptions of interprofessional communication., Methods: Interprofessional pediatric intensive care unit clinicians (physicians, advanced practice providers, nurses, and respiratory therapists) completed surveys before and 7 months after preadmission interdisciplinary huddle implementation. Huddle compliance and perceptions of interprofessional communication in the unit were evaluated., Results: Of 265 eligible pediatric intensive care unit admissions, 69 huddles (26.0%) occurred. The postintervention survey revealed increased odds (odds ratio [95% CI]) of responding "strongly agree" or "agree" to questions about the opportunity to "communicate effectively with health care team members" (2.42 [1.10-5.34]), "respond to feedback from health care team members" (2.54 [1.23-5.24]), and "convey knowledge to other health care team members" (2.71 [1.31-5.61]) before an admission., Discussion: This study introduced a formalized huddle that improved pediatric intensive care unit clinicians' perceived communication with other health care team members in the preadmission period., Conclusions: Future studies are needed to determine if this perceived improvement in communication significantly affects health care outcomes of critically ill children or if these results are generalizable to other pediatric intensive care unit settings., (©2022 American Association of Critical-Care Nurses.)
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- 2022
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39. Impact of the Updated Guideline for Pediatric Brain Death Determination on Current Practice.
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Krawiec C, Mysore MR, Mathur M, Fang X, Zhou S, Thomas NJ, and Nakagawa TA
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- Child, Humans, Infant, Newborn, Practice Patterns, Physicians', Surveys and Questionnaires, Brain, Brain Death diagnosis
- Abstract
Background: A guideline to determine pediatric brain death was updated in 2011. It is unknown how pediatric intensivists have accepted and adopted the revised guideline into clinical practice. Methods: We surveyed US pediatric critical care attending physicians July 2013 to September 2013 and February 2020 to May 2020. Brain death testing practices and utilization of the 2011 pediatric and neonatal brain death guideline were assessed. Results: The 2020 respondents found that the revised pediatric brain death guideline were useful in clinical practice (93.7% vs 83.3%, P = .0484) and provided more consistency and clarity (73.2% vs 63.1%, P = .0462) when compared to 2013 respondents. Conclusion: This study demonstrates that with defined criteria, survey participants reported increased clarity and consistency. Findings from our study indicate that in clinical practice there is no significant deviation from the minimum requirements to determine brain death in children as outlined in the 2011 guideline.
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- 2022
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40. Evaluation of reported medical services provided to pediatric viral bronchiolitis diagnoses during the COVID-19 pandemic.
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Krawiec C, Williams D, Walter V, and Thomas NJ
- Subjects
- Child, Cohort Studies, Humans, Infant, Pandemics, Bronchiolitis epidemiology, Bronchiolitis, Viral diagnosis, Bronchiolitis, Viral epidemiology, Bronchiolitis, Viral therapy, COVID-19 epidemiology, Viruses
- Abstract
Background: Mitigation strategies were implemented during the coronavirus disease 2019 (COVID-19) pandemic that slowed the spread of this virus and other respiratory viruses. The objective of this study is to assess the impact of COVID-19 mitigation strategies on the medical services that children less than 1 year of age with acute bronchiolitis required (emergency department services, hospitalization, critical care services, and mechanical ventilation)., Methods: This was a retrospective observational cohort study utilizing TriNetX ® electronic health record (EHR) data. We included subjects less than 1 year of age with a diagnosis of acute bronchiolitis. After the query, the study population was divided into two groups [pre-COVID-19 (March 1st, 2019 until February 29th, 2020) and COVID-19 (March 1st, 2020 until February 1th, 2021)]. We analyzed the following data: age, sex, race, diagnostic codes, common terminology procedures (CPT), and antimicrobials administered., Results: A total of 5063 subjects (n,%) were included [4378 (86.5%) pre-COVID-19 and 685 (13.5%) during the COVID-19 pandemic]. More subjects were diagnosed with acute bronchiolitis in the pre-COVID time frame (4378, 1.8% of all hospitalizations) when compared to the COVID-19 pandemic time frame (685, 0.5%). When diagnosed with acute bronchiolitis, the frequency of emergency department services, critical care services, hospitalization, and mechanical ventilationwere similar between the two cohorts., Conclusions: During the COVID-19 pandemic, less infants were diagnosed with acute bronchiolitis but the frequency of emergency department services, hospitalization, and mechanical ventilation, reportedly required was similar. Longer-term studies are needed to evaluate the benefits of COVID-19 mitigation strategies on common viruses that require critical care., Competing Interests: Declaration of Competing Interest The authors have no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (Copyright © 2022 SPLF and Elsevier Masson SAS. All rights reserved.)
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- 2022
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41. Facilitators and Barriers to Implementing Two Quality Improvement Interventions Across 10 Pediatric Intensive Care Units: Video Laryngoscopy-Assisted Coaching and Apneic Oxygenation.
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Davis KF, Rosenblatt S, Buffman H, Polikoff L, Napolitano N, Giuliano JS Jr, Sanders RC Jr, Edwards LR, Krishna AS, Parsons SJ, Al-Subu A, Krawiec C, Harwayne-Gidansky I, Vanderford P, Salfity N, Lane-Fall M, Nadkarni V, and Nishisaki A
- Subjects
- Child, Humans, Intensive Care Units, Intensive Care Units, Pediatric, Laryngoscopy, Respiration, Artificial, Mentoring, Quality Improvement
- Abstract
To better understand facilitators and barriers to implementation of quality improvement (QI) efforts, this study examined 2 evidence-based interventions, video laryngoscopy (VL)-assisted coaching, and apneic oxygenation (AO). One focus group with frontline clinicians was held at each of the 10 participating pediatric intensive care units. Qualitative analysis identified common and unique themes. Intervention fidelity was monitored with a priori defined success as >50% VL-assisted coaching or >80% AO use for 3 consecutive months. Eighty percent of intensive care units with VL-assisted coaching and 20% with AO met this criteria during the study period. Common facilitator themes were adequate device accessibility, having a QI culture, and strong leadership. Common barrier themes included poor device accessibility and perception of delay in care. A consistently identified theme in the successful sites was strong QI leadership, while unsuccessful sites consistently identified insufficient education. These facilitators and barriers should be proactively addressed during dissemination of these interventions., (Copyright © 2021 the American College of Medical Quality.)
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- 2022
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42. Evaluation of Febrile Seizure Diagnoses Associated With COVID-19.
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Cadet K, Boegner J, Ceneviva GD, Thomas NJ, and Krawiec C
- Subjects
- Child, Child, Preschool, Humans, Infant, Infant, Newborn, Respiration, Artificial, Retrospective Studies, SARS-CoV-2, COVID-19 complications, Seizures, Febrile diagnosis, Seizures, Febrile epidemiology
- Abstract
Background/objectives: Infections with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may be associated with febrile seizures, but the overall frequency and outcomes are unknown. The objectives of this study are to (1) determine the frequency of pediatric subjects diagnosed with febrile seizures and COVID-19, (2) evaluate patient characteristics, and (3) describe the treatments (medications and need for invasive mechanical ventilation) applied., Methods: This was a retrospective study utilizing TriNetX electronic health record data. We included subjects ranging from 0 to 5 years of age with a diagnosis of febrile seizures (R56.00, R56.01) and COVID-19 (U07.1). We extracted the following data: age, race, ethnicity, diagnostic codes, medications, laboratory results, and procedures., Results: During this study period, 8854 pediatric subjects aged 0-5 years were diagnosed with COVID-19 among 34 health care organizations and 44 (0.5%) were also diagnosed with febrile seizures (simple, 30 [68.2%]; complex, 14 [31.8%]). The median age was 1.5 years (1, 2), there were no reported epilepsy diagnoses, and a proportion required hospitalization (11; 25.0%) and critical care services (4; 9.1%)., Conclusions: COVID-19 infections in children can be associated with febrile seizures. In our study, 0.5% of COVID-19 subjects were diagnosed with febrile seizures and approximately 9% of subjects were reported to require critical care services. Febrile seizures, although serious, are not a commonly diagnosed neurologic manifestation of COVID-19.
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- 2022
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43. To the Editor: Children of Residents: What About Their Well-Being.
- Author
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Buzzelli L and Krawiec C
- Subjects
- Child, Humans, Internship and Residency
- Published
- 2022
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44. Intubation practice and outcomes among pediatric emergency departments: A report from National Emergency Airway Registry for Children (NEAR4KIDS).
- Author
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Capone CA, Emerson B, Sweberg T, Polikoff L, Turner DA, Adu-Darko M, Li S, Glater-Welt LB, Howell J, Brown CA 3rd, Donoghue A, Krawiec C, Shults J, Breuer R, Swain K, Shenoi A, Krishna AS, Al-Subu A, Harwayne-Gidansky I, Biagas KV, Kelly SP, Nuthall G, Panisello J, Napolitano N, Giuliano JS Jr, Emeriaud G, Toedt-Pingel I, Lee A, Page-Goertz C, Kimura D, Kasagi M, D'Mello J, Parsons SJ, Mallory P, Gima M, Bysani GK, Motomura M, Tarquinio KM, Nett S, Ikeyama T, Shetty R, Sanders RC Jr, Lee JH, Pinto M, Orioles A, Jung P, Shlomovich M, Nadkarni V, and Nishisaki A
- Subjects
- Child, Child, Preschool, Emergency Service, Hospital, Humans, Oxygen, Registries, Intensive Care Units, Pediatric, Intubation, Intratracheal adverse effects
- Abstract
Background: Tracheal intubation (TI) practice across pediatric emergency departments (EDs) has not been comprehensively reported. We aim to describe TI practice and outcomes in pediatric EDs in contrast to those in intensive are units (ICUs) and use the data to identify quality improvement targets., Methods: Consecutive TI encounters from pediatric EDs and ICUs in the National Emergency Airway Registry for Children (NEAR4KIDS) database from 2015 to 2018 were analyzed for patient, provider, and practice characteristics and outcomes: adverse TI-associated events (TIAEs), oxygen desaturation (SpO
2 < 80%), and procedural success. A multivariable model identified factors associated with TIAEs in the ED., Results: A total of 756 TIs in 13 pediatric EDs and 12,512 TIs in 51 pediatric/cardiac ICUs were reported. Median (interquartile range [IQR]) patient age for ED TIs was higher (32 [7-108] months) than that for ICU TIs (15 [3-91] months; p < 0.001). Proportion of TIs for respiratory decompensation (52% of ED vs. 64% ICU), shock (26% vs. 14%), and neurologic deterioration (30% vs. 11%) also differed by location. Limited neck mobility was reported more often in the ED (16% vs. 6%). TIs in the ED were performed more often via video laryngoscopy (64% vs. 29%). Adverse TIAE rates (15.6% ED, 14% ICU; absolute difference = 1.6%, 95% confidence interval [CI] = -1.1 to 4.2; p = 0.23) and severe TIAE rates (5.4% ED, 5.8% ICU; absolute difference = -0.3%, 95% CI = -2.0 to 1.3; p = 0.68) were not different. Oxygen desaturation was less commonly reported in ED TIs (13.6%) than ICU TIs (17%, absolute difference = -3.4%, 95% CI = -5.9 to -0.8; p = 0.016). Among ED TIs, shock as an indication (adjusted odds ratio [aOR] = 2.15, 95% CI = 1.26 to 3.65) and limited mouth opening (aOR = 1.74, 95% CI = 1.04 to 2.93) were independently associated with TIAEs., Conclusions: While TI characteristics vary between pediatric EDs and ICUs, outcomes are similar. Shock and limited mouth opening were independently associated with adverse TI events in the ED., (© 2021 by the Society for Academic Emergency Medicine.)- Published
- 2022
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45. Factors Influencing Pregnancy Screening in the Pediatric Intensive Care Unit.
- Author
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Perkowski C, Schlueter D, Zhou S, Ceneviva GD, Thomas NJ, and Krawiec C
- Subjects
- Adolescent, Child, Cross-Sectional Studies, Female, Humans, Pregnancy, Hospitalization, Intensive Care Units, Pediatric
- Abstract
Study Objective: The objective of this study was to determine the rate of incidental pregnancy, pregnancy screening frequency, and factors associated with pregnancy screening in the pediatric intensive care unit (PICU)., Design: A cross-sectional, descriptive study., Setting: The research was conducted at Penn State Health Children's Hospital evaluating PICU admissions between January 1, 2011, and January 31, 2019., Participants: Female adolescents 14-21 years of age who were admitted to the PICU., Interventions: The study population was divided into 2 groups (Presence and Non-Presence of Pregnancy Screening), and data were collected from the electronic health record., Main Outcome Measures: We evaluated for patient characteristics and for presence and results of urine pregnancy screening., Results: A total of 431 patients were included in the study. Of these, 275 patients (63.8%) had a pregnancy screen performed. No patients with incidental pregnancy were found. There was a statistically significant relationship between pregnancy screening and patient age, type of admission, and origin of transfer (P < .01). Analysis of secondary diagnoses (co-morbidities) indicated lower screening rates in patients with developmental delay, cerebral palsy, and/or mental retardation (15, 5.5%) [p < 0.0001] and chromosomal abnormalities (9, 3.3%) [p =0.021]., Conclusion: Incidental pregnancy is uncommon in female adolescents of childbearing age who are admitted to the PICU, but not all patients were screened, thus potentially jeopardizing maternal and fetal care. Clinicians should consider routine pregnancy screening of female patients of childbearing age admitted to the PICU and should be cognizant of individual factors that could preclude screening prior to or during their presentation., (Copyright © 2021 North American Society for Pediatric and Adolescent Gynecology. Published by Elsevier Inc. All rights reserved.)
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- 2022
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46. Abuse and Neglect
- Author
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Adigun OO, Mikhail AG, Krawiec C, and Hatcher JD
- Abstract
Abuse and neglect are commonly encountered in both children and the elderly. It occurs when a caregiver, whether through willful action or lack of appropriate action, causes harm or distress to the person under their care. The victims can be encountered in different healthcare settings and may be at risk of various health consequences. The optimal outcome for these individuals may depend upon early recognition of the signs and symptoms of abuse or neglect and prompt evaluation. The following activity will provide an overview of the clinical features, evaluation, and approach to a patient with suspected abuse or neglect., (Copyright © 2022, StatPearls Publishing LLC.)
- Published
- 2022
47. Cephalohematoma
- Author
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Raines DA, Krawiec C, and Jain S
- Abstract
A cephalohematoma is an accumulation of blood under the scalp. During the birth process, small blood vessels on the head of the fetus are broken as a result of minor trauma. Specific to a cephalohematoma, small blood vessels crossing the periosteum are ruptured, and serosanguineous or bloody fluid collects between the skull and the periosteum. The periosteum is the membrane that covers the outer surface of all bones. The bleeding is gradual; therefore, a cephalohematoma is not evident at birth. A cephalohematoma develops during the hours or days following birth. Because the fluid collection is between the periosteum and the skull, the boundaries of a cephalohematoma are defined by the underlying bone. In other words, a cephalohematoma is confined to the area on top of one of the cranial bones and does not cross the midline or the suture lines. Because the collection of blood is sitting on top of the skull and not under it, there is no pressure placed on the brain., (Copyright © 2022, StatPearls Publishing LLC.)
- Published
- 2022
48. Neonatal Seizure
- Author
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Krawiec C and Muzio MR
- Abstract
Neonatal seizures are a commonly encountered neurologic condition in neonates.[1][2][3] They are defined as the occurrence of sudden, paroxysmal, abnormal alteration of electrographic activity at any point from birth to the end of the neonatal period.[3] During this period, the neonatal brain is developmentally immature.[4][5] Thus, neonatal seizures have unique pathophysiology and electrographic findings resulting in clinical manifestations that can be different (and more difficult to identify) when compared to older age groups.[3][4] When a patient with neonatal seizures is encountered, it may be the first clinical sign of a serious neurologic disorder.[6] Thus, rapid recognition and evaluation are required to identify and treat the underlying etiology, prevent further brain injury, and extinguish the seizure activity.[7][8][9] The following activity will provide an overview of the etiologies, clinical features, evaluation, and approach to the management of a patient with neonatal seizures., (Copyright © 2022, StatPearls Publishing LLC.)
- Published
- 2022
49. Rubeola (Measles)
- Author
-
Krawiec C and Hinson JW
- Abstract
Rubeola, also known as measles, is a type of infectious disease. It is caused by a virus that is transmitted via person-to-person contact as well as airborne spread. Due to its mode of transmission and its ability to remain airborne for a prolonged period, individuals become easily infected.[1] Its high contagiousness and its inherent infective efficiency result in continued yearly multiple outbreaks worldwide, especially in the unvaccinated.[1] When exposed to measles, the individual not only develops clinical manifestations but is at risk for various complications. It continues to be a leading cause of death in children less than five years of age worldwide, and survivors are at risk of neurologic, pulmonary, and gastrointestinal complications.[1][2] There is no specific antiviral therapy in the treatment of this condition, only supportive care.[1] Thus, the clinician needs to understand their role in prevention. This includes appreciating the nature of this disease, recognizing its presence, understanding its pathophysiology, providing immunizations in vaccine-eligible individuals, and being able to initiate early evaluation and treatment to not only treat the patient they are faced with but reduce the risk of spreading this disease. The following activity will provide an overview of the etiology, clinical features, evaluation, preventative strategies, and approach to the management of a patient with measles.[1], (Copyright © 2022, StatPearls Publishing LLC.)
- Published
- 2022
50. Sinus Tachycardia
- Author
-
Henning A and Krawiec C
- Abstract
Sinus tachycardia is a regular cardiac rhythm in which the heart beats faster than normal and results in an increase in cardiac output. While it is common to have sinus tachycardia as a compensatory response to exercise or stress, it becomes concerning when it occurs at rest.[1] The normal resting heart rate for adults is between 60 and 100, which varies based on the level of fitness or the presence of medical comorbidities.[2][3] For children, it varies by age but is commonly higher than the resting rate in adults (starting approximately between 100 and 150 beats per minute in infancy with a gradual reduction over the next six years).[4] The presence of tachycardia at rest could be the earliest sign of serious pathology. Thus, it is crucial for the clinician to rapidly identify the underlying cause of tachycardia and determine if it indicates urgent evaluation and/or treatment.[2] This activity will review the etiologies of tachycardia and approach to the patient who presents with tachycardia., (Copyright © 2022, StatPearls Publishing LLC.)
- Published
- 2022
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