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1. Initial rhythm and survival in refractory out-of-hospital cardiac arrest. Post-hoc analysis of the Prague OHCA randomized trial

Author: Fingrova, Z, primary, Havranek, S, additional, Rob, D, additional, Smalcova, J, additional, Kavalkova, P, additional, Smid, O, additional, Dusik, M, additional, Linhart, A, additional, and Belohlavek, J, additional
Published: 2023
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2. Hypothermia versus Normothermia after Out-of-Hospital Cardiac Arrest

Author: Dankiewicz J., Cronberg T., Lilja G., Jakobsen J. C., Levin H., Ullen S., Rylander C., Wise M. P., Oddo M., Cariou A., Belohlavek J., Hovdenes J., Saxena M., Kirkegaard H., Young P. J., Pelosi P., Storm C., Taccone F. S., Joannidis M., Callaway C., Eastwood G. M., Morgan M. P. G., Nordberg P., Erlinge D., Nichol A. D., Chew M. S., Hollenberg J., Thomas M., Bewley J., Sweet K., Grejs A. M., Christensen S., Haenggi M., Levis A., Lundin A., During J., Schmidbauer S., Keeble T. R., Karamasis G. V., Schrag C., Faessler E., Smid O., Otahal M., Maggiorini M., Wendel Garcia P. D., Jaubert P., Cole J. M., Solar M., Borgquist O., Leithner C., Abed-Maillard S., Navarra L., Annborn M., Unden J., Brunetti I., Awad A., McGuigan P., Olsen R. B., Cassina T., Vignon P., Langeland H., Lange T., Friberg H., Nielsen N. Collaborators, Erik Roman Pognuz, Umberto Lucangelo, Giorgio Berlot, Elisabetta Macchini., Dankiewicz, J., Cronberg, T., Lilja, G., Jakobsen, J. C., Levin, H., Ullen, S., Rylander, C., Wise, M. P., Oddo, M., Cariou, A., Belohlavek, J., Hovdenes, J., Saxena, M., Kirkegaard, H., Young, P. J., Pelosi, P., Storm, C., Taccone, F. S., Joannidis, M., Callaway, C., Eastwood, G. M., Morgan, M. P. G., Nordberg, P., Erlinge, D., Nichol, A. D., Chew, M. S., Hollenberg, J., Thomas, M., Bewley, J., Sweet, K., Grejs, A. M., Christensen, S., Haenggi, M., Levis, A., Lundin, A., During, J., Schmidbauer, S., Keeble, T. R., Karamasis, G. V., Schrag, C., Faessler, E., Smid, O., Otahal, M., Maggiorini, M., Wendel Garcia, P. D., Jaubert, P., Cole, J. M., Solar, M., Borgquist, O., Leithner, C., Abed-Maillard, S., Navarra, L., Annborn, M., Unden, J., Brunetti, I., Awad, A., Mcguigan, P., Olsen, R. B., Cassina, T., Vignon, P., Langeland, H., Lange, T., Friberg, H., Collaborators:, Nielsen N., ROMAN-POGNUZ, Erik, Lucangelo, Umberto, Berlot, Giorgio, and Macchini, Elisabetta
Subjects: Male, Fever, Heart disease, medicine.medical_treatment, Coma/etiology, Hypothermia, Kaplan-Meier Estimate, Targeted temperature management, GUIDELINES, Out of hospital cardiac arrest, Body Temperature, law.invention, TARGETED TEMPERATURE MANAGEMENT, Randomized controlled trial, Hypothermia, Induced, law, AMERICAN-HEART-ASSOCIATION, EUROPEAN RESUSCITATION COUNCIL, medicine, Humans, Single-Blind Method, Cardiopulmonary resuscitation, Coma, 610 Medicine & health, Aged, Cardiopulmonary Resuscitation, Female, Middle Aged, Out-of-Hospital Cardiac Arrest, Treatment Outcome, business.industry, Induced, General Medicine, medicine.disease, Out-of-Hospital Cardiac Arrest/complications, Fever/etiology, Clinical research, Hypothermia, Induced/adverse effects, CARDIOPULMONARY-RESUSCITATION, Anesthesia, Cardiopulmonary Resuscitation/methods, medicine.symptom, business, Human
Abstract: Hypothermia or Normothermia after Cardiac ArrestThis trial randomly assigned patients with coma after out-of-hospital cardiac arrest to undergo targeted hypothermia at 33 degrees C or normothermia with treatment of fever. At 6 months, there were no significant between-group differences regarding death or functional outcomes.BackgroundTargeted temperature management is recommended for patients after cardiac arrest, but the supporting evidence is of low certainty.MethodsIn an open-label trial with blinded assessment of outcomes, we randomly assigned 1900 adults with coma who had had an out-of-hospital cardiac arrest of presumed cardiac or unknown cause to undergo targeted hypothermia at 33 degrees C, followed by controlled rewarming, or targeted normothermia with early treatment of fever (body temperature, >= 37.8 degrees C). The primary outcome was death from any cause at 6 months. Secondary outcomes included functional outcome at 6 months as assessed with the modified Rankin scale. Prespecified subgroups were defined according to sex, age, initial cardiac rhythm, time to return of spontaneous circulation, and presence or absence of shock on admission. Prespecified adverse events were pneumonia, sepsis, bleeding, arrhythmia resulting in hemodynamic compromise, and skin complications related to the temperature management device.ResultsA total of 1850 patients were evaluated for the primary outcome. At 6 months, 465 of 925 patients (50%) in the hypothermia group had died, as compared with 446 of 925 (48%) in the normothermia group (relative risk with hypothermia, 1.04; 95% confidence interval [CI], 0.94 to 1.14; P=0.37). Of the 1747 patients in whom the functional outcome was assessed, 488 of 881 (55%) in the hypothermia group had moderately severe disability or worse (modified Rankin scale score >= 4), as compared with 479 of 866 (55%) in the normothermia group (relative risk with hypothermia, 1.00; 95% CI, 0.92 to 1.09). Outcomes were consistent in the prespecified subgroups. Arrhythmia resulting in hemodynamic compromise was more common in the hypothermia group than in the normothermia group (24% vs. 17%, PConclusionsIn patients with coma after out-of-hospital cardiac arrest, targeted hypothermia did not lead to a lower incidence of death by 6 months than targeted normothermia. (Funded by the Swedish Research Council and others; TTM2 ClinicalTrials.gov number, .)
Published: 2021
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3. Hypothermia versus Normothermia after Out-of-Hospital Cardiac Arrest

Author: Dankiewicz, J, Cronberg, T, Lilja, G, Jakobsen, JC, Levin, H, Ullen, S, Rylander, C, Wise, MP, Oddo, M, Cariou, A, Belohlavek, J, Hovdenes, J, Saxena, M, Kirkegaard, H, Young, PJ, Pelosi, P, Storm, C, Taccone, FS, Joannidis, M, Callaway, C, Eastwood, GM, Morgan, MPG, Nordberg, P, Erlinge, D, Nichol, AD, Chew, MS, Hollenberg, J, Thomas, M, Bewley, J, Sweet, K, Grejs, AM, Christensen, S, Haenggi, M, Levis, A, Lundin, A, During, J, Schmidbauer, S, Keeble, TR, Karamasis, GV, Schrag, C, Faessler, E, Smid, O, Otahal, M, Maggiorini, M, Wendel Garcia, PD, Jaubert, P, Cole, JM, Solar, M, Borgquist, O, Leithner, C, Abed-Maillard, S, Navarra, L, Annborn, M, Unden, J, Brunetti, I, Awad, A, McGuigan, P, Bjorkholt Olsen, R, Cassina, T, Vignon, P, Langeland, H, Lange, T, Friberg, H, Nielsen, N, Dankiewicz, J, Cronberg, T, Lilja, G, Jakobsen, JC, Levin, H, Ullen, S, Rylander, C, Wise, MP, Oddo, M, Cariou, A, Belohlavek, J, Hovdenes, J, Saxena, M, Kirkegaard, H, Young, PJ, Pelosi, P, Storm, C, Taccone, FS, Joannidis, M, Callaway, C, Eastwood, GM, Morgan, MPG, Nordberg, P, Erlinge, D, Nichol, AD, Chew, MS, Hollenberg, J, Thomas, M, Bewley, J, Sweet, K, Grejs, AM, Christensen, S, Haenggi, M, Levis, A, Lundin, A, During, J, Schmidbauer, S, Keeble, TR, Karamasis, GV, Schrag, C, Faessler, E, Smid, O, Otahal, M, Maggiorini, M, Wendel Garcia, PD, Jaubert, P, Cole, JM, Solar, M, Borgquist, O, Leithner, C, Abed-Maillard, S, Navarra, L, Annborn, M, Unden, J, Brunetti, I, Awad, A, McGuigan, P, Bjorkholt Olsen, R, Cassina, T, Vignon, P, Langeland, H, Lange, T, Friberg, H, and Nielsen, N
Abstract: BACKGROUND: Targeted temperature management is recommended for patients after cardiac arrest, but the supporting evidence is of low certainty. METHODS: In an open-label trial with blinded assessment of outcomes, we randomly assigned 1900 adults with coma who had had an out-of-hospital cardiac arrest of presumed cardiac or unknown cause to undergo targeted hypothermia at 33°C, followed by controlled rewarming, or targeted normothermia with early treatment of fever (body temperature, ≥37.8°C). The primary outcome was death from any cause at 6 months. Secondary outcomes included functional outcome at 6 months as assessed with the modified Rankin scale. Prespecified subgroups were defined according to sex, age, initial cardiac rhythm, time to return of spontaneous circulation, and presence or absence of shock on admission. Prespecified adverse events were pneumonia, sepsis, bleeding, arrhythmia resulting in hemodynamic compromise, and skin complications related to the temperature management device. RESULTS: A total of 1850 patients were evaluated for the primary outcome. At 6 months, 465 of 925 patients (50%) in the hypothermia group had died, as compared with 446 of 925 (48%) in the normothermia group (relative risk with hypothermia, 1.04; 95% confidence interval [CI], 0.94 to 1.14; P = 0.37). Of the 1747 patients in whom the functional outcome was assessed, 488 of 881 (55%) in the hypothermia group had moderately severe disability or worse (modified Rankin scale score ≥4), as compared with 479 of 866 (55%) in the normothermia group (relative risk with hypothermia, 1.00; 95% CI, 0.92 to 1.09). Outcomes were consistent in the prespecified subgroups. Arrhythmia resulting in hemodynamic compromise was more common in the hypothermia group than in the normothermia group (24% vs. 17%, P<0.001). The incidence of other adverse events did not differ significantly between the two groups. CONCLUSIONS: In patients with coma after out-of-hospital cardiac arrest, targeted hypothermi
Published: 2021

4. Feasibility of cerebral blood flow and oxygenation monitoring by continuous transcranial Doppler combined with cerebral oximetry in a patient with refractory cardiac arrest treated by extracorporeal life support

Author: Belohlavek, J, Skalicka, H, Boucek, T, Kovarnik, T, Fichtl, J, Smid, O, Huptych, M, and Linhart, A
Published: 2014
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5. Abstracts

Author: Barthelemy, O., primary, Silvain, J., additional, Brieger, D., additional, Bellemain-Appaix, A., additional, Cayla, G., additional, Beygui, F., additional, Lancar, R., additional, Collet, J. P., additional, Mercadier, A., additional, Montalescot, G., additional, Cha, K. S., additional, Nam, Y. H., additional, Kim, J. H., additional, Park, S. Y., additional, Park, T. H., additional, Kim, M. H., additional, Kim, Y. D., additional, Lee, H. C., additional, Ahn, M. S., additional, Hong, T. J., additional, Blanco, R., additional, Blanco, F., additional, Szarfer, J., additional, Garcia Escudero, A., additional, Gigena, G., additional, Gagliardi, J., additional, Rodriguez, A., additional, Sarmiento, R., additional, Affatatto, S., additional, Riccitelli, M., additional, Petris, A., additional, Datcu, M. D., additional, Pop, C., additional, Radoi, M., additional, Arsenescu-Georgescu, C., additional, Petrescu, I., additional, Petrescu, L., additional, Serban, L., additional, Nechita, E., additional, Tatu-Chitoiu, G., additional, Dorobantu, M., additional, Benedek, I., additional, Craiu, E., additional, Sinescu, C., additional, Ionescu, D. D., additional, Ginghina, C., additional, Minescu, B., additional, Izzo, A., additional, Mantovani, P., additional, Tomasi, L., additional, Dall'oglio, L., additional, Bonatti, S., additional, Rosiello, R., additional, Romano, M., additional, Agostini, F., additional, Zanini, R., additional, Zhao, Z. Y., additional, Wu, Y. J., additional, Li, J. J., additional, Yany, Y. J., additional, Qian, H. Y., additional, Tang, Y. D., additional, Timoteo, A. T., additional, Toste, A., additional, Lousinha, A., additional, Ramos, R., additional, Oliveira, J. A., additional, Ferreira, M. L., additional, Ferreira, R. C., additional, Cabades, C., additional, Diez Gil, J. L., additional, Aguar, P., additional, Sanmiguel, D., additional, Lopez-March, A., additional, Marmol, R., additional, Guerra, L., additional, Girbes, V., additional, Ferrando, J., additional, Rincon De Arellano, A., additional, Patricio, L., additional, Blondal, M., additional, Ainla, T., additional, Marandi, T., additional, Eha, J., additional, Oliveira, M. M., additional, Silva, M. N., additional, Cunha, P. S., additional, Feliciano, J., additional, Silva, S., additional, Kanovsky, J., additional, Kala, P., additional, Parenica, J., additional, Poloczek, M., additional, Prymusova, K., additional, Kubkova, L., additional, Spinar, J., additional, Olinic, D., additional, Homorodean, C., additional, Ober, M., additional, Olinic, M., additional, Andrioaia, C., additional, Condac, A., additional, Masmoudi, M., additional, Berdaoui, B., additional, Labidi, S., additional, Tapia Ballesteros, C., additional, Hernandez Luis, C., additional, Sandin, M. G., additional, Vegas, J. M., additional, Andion, R., additional, Martinez, N., additional, Gonzalez, I. A., additional, Alvarado, M., additional, Amat, I. J., additional, San Roman, J. A., additional, Garcia Gonzalez, M. J., additional, Arroyo Ucar, E., additional, Hernandez Garcia, C., additional, Dorta Martin, M., additional, Marrero Rodriguez, F., additional, Dragu, R., additional, Kapeliovich, M., additional, Hammerman, H., additional, Silva, D., additional, Cortez-Dias, N., additional, Jorge, C., additional, Silva Marques, J., additional, Carilho Ferreira, P., additional, Robalo Martins, S., additional, Almeida Ribeiro, M., additional, Calisto, C., additional, Fiuza, M., additional, Lopes, M. G., additional, Milicevic, P., additional, Panic, M., additional, Stankovic, I., additional, Milicevic, D., additional, Kalezic, T., additional, Kafedzic, S., additional, Ilic, I., additional, Cerovic, M., additional, Putnikovic, B., additional, Neskovic, A., additional, Rott, D., additional, Leibowitz, D., additional, Monhart, Z., additional, Reissigova, J., additional, Grunfeldova, H., additional, Jansky, P., additional, Valente, B., additional, Villanueva Benito, I., additional, Solla, I., additional, Paredes, E., additional, Diaz Castro, O., additional, Calvo, F., additional, Baz, J. A., additional, Iniguez, A., additional, Aleksova, A., additional, Gerloni, R., additional, Belfiore, R., additional, Carriere, C., additional, Barbati, G., additional, Fabris, E., additional, Possa, F., additional, Nait, D., additional, Milo, M., additional, Sinagra, G., additional, Marques, N., additional, Mimoso, J., additional, Gomes, V., additional, Agra Bermejo, R. M., additional, Emad Abu Assi, E. A. A., additional, Sergio Raposeiras Roubin, S. R. R., additional, Pilar Cabanas Grandio, P. C. G., additional, Carlos Pena Gil, C. P. G., additional, Jose Maria Garcia Acuna, J. M. G. A., additional, Jose Ramon Gonzalez Juanatey, J. R. G. J., additional, Daly, M. J., additional, Scott, P., additional, Owens, C. G., additional, Tomlin, A., additional, Smith, B., additional, Adgey, A. A. J., additional, Alvarez-Contreras, L. R., additional, Juarez, U., additional, Altamirano, A., additional, Arias, A., additional, Alvarez-San Gabriel, A., additional, Gonzalez-Pacheco, H., additional, Martinez-Sanchez, C., additional, Rahnavardi, M., additional, Keshtkar-Jahromi, M., additional, Vakili, H., additional, Gholamin, S., additional, Razavi, S. M., additional, Gilis-Januszewski, T., additional, Mellwig, K.- P., additional, Wiemer, M., additional, Gilis-Januszewski, J., additional, Peterschroeder, A., additional, Koerfer, J., additional, Horstkotte, D., additional, Vrsalovic, M., additional, Getaldic, B., additional, Vrkic, N., additional, Pintaric, H., additional, Khan, S., additional, Wasan, B., additional, Moretti, L., additional, Grossi, P., additional, Silenzi, S., additional, Testa, M., additional, Candelori, L., additional, Clementi, L. N., additional, Forlini, M., additional, Lando, L., additional, Pezzuoli, M. L., additional, Corradetti, P., additional, Leurent, G., additional, Pennec, P. Y., additional, Filippi, E., additional, Moquet, B., additional, Hacot, J. P., additional, Druelles, P., additional, Rialan, A., additional, Rouault, G., additional, Coudert, I., additional, Le Breton, H., additional, Gevaert, S., additional, Tromp, F., additional, Vandecasteele, E., additional, De Somer, F., additional, Van Belleghem, Y., additional, Bouchez, S., additional, Martens, F., additional, Herck, I., additional, De Pauw, M., additional, Ludka, O., additional, Sepsi, M., additional, Miklik, R., additional, Dusek, L., additional, Tomcikova, D., additional, Garcia-Acuna, J. M., additional, Aguiar-Souto, P., additional, Raposeiras Roubin, S., additional, Agra-Bermejo, R., additional, Jacquet, M., additional, Abu-Assi, E., additional, Gonzalez-Juanatey, J. R., additional, Ibatov, A., additional, Labrova, R., additional, Karlik, R., additional, Lokaj, P., additional, She, Q., additional, Deng, S. B., additional, Huang, S. H., additional, Gu, L. J., additional, Rong, J. I. A. N., additional, Wu, Z. K., additional, Li, Y., additional, Zhang, J., additional, Parascan, L., additional, Campanile, A., additional, Spinelli, L., additional, Santulli, G., additional, Ciccarelli, M., additional, De Gennaro, S., additional, Assante Di Panzillo, E., additional, Trimarco, B., additional, Iaccarino, G., additional, Bobescu, E., additional, Datcu, G., additional, Dobreanu, D., additional, Doka, B., additional, Charniot, J.- C., additional, Cosson, C., additional, Albertini, J. P., additional, Bittar, R., additional, Giral, P., additional, Cherfils, C., additional, Guillerm, E., additional, Bonnefont-Rousselot, D., additional, Rusali, A., additional, Cojocaru, L., additional, Parepa, I., additional, Koizumi, T., additional, Iida, S., additional, Sato, J., additional, Kikutani, T., additional, Muramatsu, T., additional, Nishimura, S., additional, Komiyama, N., additional, Lee, W. P., additional, Ong, B. B., additional, Haralambos, K., additional, Townsend, D., additional, Rees, J. A. E., additional, Williams, E. J., additional, Halcox, J. P., additional, Mcdowell, I., additional, Damjanovic, M., additional, Koracevic, G., additional, Djordjevic-Radojkovic, D., additional, Pavlovic, M., additional, Krstic, N., additional, Ciric-Zdravkovic, S., additional, Stojkovic, A., additional, Perisic, Z., additional, Apostolovic, S., additional, Faustino, A., additional, Seca, L., additional, Barra, S., additional, Caetano, F., additional, Providencia, R., additional, Silva, J., additional, Gomes, P., additional, Costa, G., additional, Costa, M., additional, Leitao-Marques, A., additional, Volkova, A. L., additional, Arutyunov, G. P., additional, Bylova, N. A., additional, Dayter, I. I., additional, Jao, Y. T. F. N., additional, Fang, C. C., additional, Chen, Y., additional, Yu, C. L., additional, Wang, S. P., additional, Valencia, J., additional, Perez-Berbel, P., additional, Ruiz-Nodar, J. M., additional, Pineda, J., additional, Bordes, P., additional, Quintanilla, M., additional, Mainar, V., additional, Sogorb, F., additional, Santos, N., additional, Serrao, M., additional, Cafe, H., additional, Silva, B., additional, Oliveira, R., additional, Caires, G., additional, Drumond, A., additional, Araujo, J., additional, Providencia, R. A., additional, Gomes, P. L., additional, Pais, J. R., additional, Mota, P., additional, Leitao-Marques, A. M., additional, Farhan, S., additional, Jarai, R., additional, Tentzeris, I., additional, Vogel, B., additional, Freynhofer, M. K., additional, Wojta, J., additional, Huber, K., additional, Poli, M., additional, Trambaiolo, P., additional, Corsi, F., additional, De Luca, M., additional, Mustilli, M., additional, Lukic, V., additional, Simonetti, M., additional, Ferraiuolo, G., additional, Lettino, M., additional, Casella, G., additional, Conte, M. R., additional, De Luca, L., additional, Geraci, G., additional, Ceravolo, R., additional, Pani, A., additional, Fradella, G., additional, Schratter, A., additional, Thiele, H., additional, Klemm, T., additional, Demmin, K., additional, Lehmann, D., additional, Mende, M., additional, Schuler, G., additional, Pittl, U., additional, Chernova, A., additional, Nikulina, S. U., additional, Naruke, T., additional, Inomata, T., additional, Yanagisawa, T., additional, Maekawa, E., additional, Mizutani, T., additional, Shinagawa, H., additional, Nishii, M., additional, Takeuchi, I., additional, Takehana, H., additional, Izumi, T., additional, Paulo, C., additional, Mascarenhas, J., additional, Patacho, M., additional, Pimenta, J., additional, Bettencourt, P., additional, Nardai, S., additional, Szabo, G. Y., additional, Berta, B., additional, Edes, I., additional, Merkely, B., additional, Delgado Silva, J., additional, Baptista, R., additional, Faria, R., additional, Trigo, J., additional, Gago, P., additional, Gheorghe, G., additional, Nanea, I. T., additional, Cristea, A., additional, Almarichi, S., additional, Martins, H., additional, Saraiva, F., additional, Jorge, E., additional, Mendes, P. L., additional, Monteiro, P., additional, Costa, S., additional, Franco, F., additional, Providencia, L. A., additional, Nanea, T., additional, Gheorghe, G. S., additional, Visan, S., additional, Paun, N., additional, Gaber, R., additional, Delewi, R., additional, Nijveldt, R., additional, De Bruin, H. A., additional, Hirsch, A., additional, Van Der Laan, A., additional, Bouma, B. J., additional, Tijssen, J. P. G., additional, Van Rossum, A. C., additional, Zijlstra, F., additional, Piek, J. J., additional, Rus, H., additional, Donea, M., additional, Ciurea, C., additional, Ifteni, G., additional, Casolo, G., additional, Chioccioli, M., additional, Magnacca, M., additional, Del Meglio, J., additional, Comella, A., additional, Baratto, M., additional, Lera, J., additional, Salvadori, L., additional, Tessa, C., additional, Vignali, C., additional, Keca, Z., additional, Momcilov Popin, T., additional, Panic, G., additional, White, R., additional, Mateen, F., additional, Weaver, A., additional, Agmon, Y., additional, Okisheva, E., additional, Tsaregorodtsev, D., additional, Sulimov, V., additional, Amat Santos, I. J., additional, Hernandez, C., additional, Tapia, C., additional, Campo, A., additional, Fredman, D., additional, Svensson, L., additional, Rosenqvist, M., additional, Tadel-Kocjancic, S., additional, Radsel, P., additional, Knafelj, R., additional, Gorjup, V., additional, Noc, M., additional, Zima, E., additional, Jenei, Z. S., additional, Kovacs, E., additional, Osztheimer, I., additional, Molnar, L., additional, Horvath, A., additional, Becker, D., additional, Geller, L., additional, Maggi, R., additional, Furukawa, T., additional, Viscardi, V., additional, Brignole, M., additional, Leal, S. R. N., additional, Dores, H., additional, Rosario, I., additional, Monge, J., additional, Carvalho, M. J., additional, Arroja, I., additional, Leitao, A., additional, Fonseca, C., additional, Aleixo, A., additional, Silva, A., additional, Keuleers, S., additional, Herijgers, P., additional, Herregods, M. C., additional, Budts, W., additional, Dubois, C., additional, Meuris, B., additional, Verhamme, P., additional, Flameng, W., additional, Van De Werf, F., additional, Adriaenssens, T., additional, Badran, H., additional, Elnoamany, M., additional, Lolah, T., additional, Olariu, C., additional, Macarie, C., additional, Mollik, M. A. H., additional, Hassan, A. I., additional, Paul, T. K., additional, Haque, M. Z., additional, Jahan, R., additional, Rahmatullah, M., additional, Khatun, M. A., additional, Rahman, M. T., additional, Chowdhury, M. H., additional, Bustamante Munguira, J., additional, Tamayo, E., additional, Garcia-Cuenca, I., additional, Bustamante, E., additional, Gualis, J., additional, Gomez-Martinez, M. L., additional, Florez, S., additional, Gomez-Herreras, J. I., additional, Ramirez Rodriguez, R., additional, Ramirez Rodriguez, A. M., additional, Garcia-Bello, M. A., additional, Hernadez Ortega, E., additional, Caballero Dorta, E., additional, Garcia Quintana, A., additional, Piro Mastraccio, V., additional, Medina Fernandez Aceytuno, A., additional, Assanelli, E., additional, De Metrio, M., additional, Rubino, M., additional, Lauri, G., additional, Cabiati, A., additional, Campodonico, J., additional, Grazi, M., additional, Moltrasio, M., additional, Marana, I., additional, Marenzi, G., additional, Lovlien, M., additional, Schei, B., additional, Picon-Heras, R., additional, Acebal, C., additional, Garcia Rubira, J. C., additional, Vivas Balcones, D., additional, Nunez-Gil, I., additional, Ruiz-Mateos, B., additional, Ibanez, B., additional, Fernandez-Ortiz, A., additional, Vintila, V. D., additional, Enescu, O. A., additional, Stoicescu, C. I., additional, Udroiu, C., additional, Cinteza, M., additional, Tatu - Chitoiu, G., additional, Vinereanu, D., additional, Fresco, C., additional, De Biasio, M., additional, Muser, D., additional, Sappa, R., additional, Morocutti, G., additional, Bernardi, G., additional, Proclemer, A., additional, Fontanella, B., additional, Affatato, A., additional, Ciccarese, C., additional, Sacchini, M., additional, Volpini, M., additional, Bianchetti, F., additional, Verzura, G., additional, Dei Cas, L., additional, Pudil, R., additional, Blaha, V., additional, Vojacek, J., additional, Paraskevaidis, I., additional, Ikonomidis, I., additional, Parissis, J., additional, Papadopoulos, C., additional, Stasinos, V., additional, Bistola, V., additional, Anastasiou-Nana, M., additional, Shochat, M., additional, Shotan, A., additional, Kazatsker, M., additional, Gurovich, V., additional, Asif, A., additional, Noiman, E., additional, Levy, Y., additional, Blondhaim, D., additional, Rabinovich, P., additional, Meisel, S., additional, Petrovic, S., additional, Glasnovic, J., additional, Tomasevic, M., additional, Sakac, D., additional, Obradovic, S., additional, Londono Sanchez, O., additional, Pacreu, S., additional, Torres, L., additional, Mihaylov, G., additional, Shaban, G. M., additional, Trendafilova, E., additional, Krasteva, V., additional, Mudrov, T. S., additional, Didon, J. P., additional, Panageas, V., additional, Vlachos, N., additional, Pernat, A., additional, Radan, I., additional, Mozina, H., additional, Pepi, P., additional, Cionini, F., additional, Baccaglioni, N., additional, Viertel, A., additional, Havers, J., additional, Ballard, G., additional, Groenefeld, G., additional, Branco, L. 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M., additional, Dito, E., additional, De Giusti, M., additional, Lallo, A., additional, Fusco, D., additional, Davoli, M., additional, Volpe, M., additional, Autore, C., additional, Gamra, H., additional, Dridi, Z., additional, Hassine, M., additional, Addad, F., additional, Gherissi, I., additional, Reda, A., additional, Mahjoub, M., additional, Bouraoui, S., additional, Abdennadher, M., additional, Betbout, F., additional, Mota, P. M. F. P., additional, Silva, J. D., additional, Jankovic Tomasevic, R., additional, Djordjevic, V., additional, Djordjevic Radojkovic, D., additional, Scafa Udriste, A., additional, Fruntelata, A., additional, Gainoiu, E., additional, Bogdan, S., additional, Zamfir, D., additional, Teodorescu, C., additional, Guran, M., additional, Constantinescu, D., additional, Konopka, A., additional, Banaszewski, M., additional, Wojtkowska, I., additional, Stepinska, J., additional, Vidergold, J. V., additional, Osipova, I. V., additional, Tavrovskaya, T. V., additional, Galkina, J. V., additional, Timofeev, A. V., additional, Vorobyov, R. I., additional, Vorobyova, E. N., additional, Matos, L., additional, Carvalho, A. C. C., additional, Oliveira, W., additional, Cintra, F., additional, Poyares, D., additional, Andersen, M., additional, Martins, R., additional, Tufik, S., additional, Ostadal, P., additional, Brada, J., additional, Horakova, S., additional, Mlcek, M., additional, Hrachovina, V., additional, Kittnar, O., additional, Gorudko, I. V., additional, Buko, I. V., additional, Cherenkevich, S. N., additional, Polonetsky, L. Z., additional, Plotkin, V. Y., additional, Timoshina, M. A., additional, Azanchevskaya, S. V., additional, Chromov-Borisov, N. N., additional, Vorlat, A., additional, Snoep, L., additional, Claeys, M. J., additional, Vrints, C. J., additional, Palazzuoli, A., additional, Caputo, M., additional, Quatrini, I., additional, Calabro, A., additional, Antonelli, G., additional, Campagna, M. 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G., additional, Zatarain Nicolas, E., additional, Martinez Uruena, N., additional, Alvarado Montes De Oca, M., additional, Dytrych, V., additional, Kovarnik, T., additional, Smid, O., additional, Kral, A., additional, Aroutunov, A. G., additional, Intwala, S., additional, Jegere, I., additional, Shaalan, H. S. H., additional, Pagava, Z., additional, Agladze, R., additional, Shakarishvili, R., additional, Sharashidze, N., additional, Gujejiani, L., additional, Saatashvili, G., additional, Katova, T. 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A., additional, Adgey, J. A. A., additional, Caeiro Pereira, D., additional, Braga, P., additional, Fontes Carvalho, R., additional, Rodrigues, A., additional, Goncalves, M., additional, Simoes, L., additional, and Borisov, K. V., additional
Published: 2010
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6. The Protein Import Channel in the Outer Mitosomal Membrane of Giardia intestinalis

Author: Dagley, M. J., primary, Dolezal, P., additional, Likic, V. A., additional, Smid, O., additional, Purcell, A. W., additional, Buchanan, S. K., additional, Tachezy, J., additional, and Lithgow, T., additional
Published: 2009
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7. Is it safe to thrombolyse patients with pulmonary embolism and right heart mobile thrombi?

Author: Belohlavek, J, primary, Dytrych, V, additional, Kral, A, additional, Smid, O, additional, and Linhart, A, additional
Published: 2009
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8. Role of IscS in Fe-S cluster assembly in Trypanosoma brucei

Author: SMID, O., primary, VONDRUSKOVA, E., additional, VILIMOVA, V., additional, SUT'AK, R., additional, LUKE, J., additional, and TACHEZY, J., additional
Published: 2005
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9. Hyperinvasive approach to out-of hospital cardiac arrest using mechanical chest compression device, prehospital intraarrest cooling, extracorporeal life support and early invasive assessment compared to standard of care. A randomized parallel groups comparative study proposal. 'Prague OHCA study'

Author: Belohlavek Jan, Kucera Karel, Jarkovsky Jiri, Franek Ondrej, Pokorna Milana, Danda Jiri, Skripsky Roman, Kandrnal Vit, Balik Martin, Kunstyr Jan, Horak Jan, Smid Ondrej, Valasek Jaroslav, Mrazek Vratislav, Schwarz Zdenek, and Linhart Ales
Subjects: Cardiac arrest, Hypothermia, Extracorporeal life support, Mechanical compression device, Invasive assessment, Medicine
Abstract: Abstract Background Out of hospital cardiac arrest (OHCA) has a poor outcome. Recent non-randomized studies of ECLS (extracorporeal life support) in OHCA suggested further prospective multicenter studies to define population that would benefit from ECLS. We aim to perform a prospective randomized study comparing prehospital intraarrest hypothermia combined with mechanical chest compression device, intrahospital ECLS and early invasive investigation and treatment in all patients with OHCA of presumed cardiac origin compared to a standard of care. Methods This paper describes methodology and design of the proposed trial. Patients with witnessed OHCA without ROSC (return of spontaneous circulation) after a minimum of 5 minutes of ACLS (advanced cardiac life support) by emergency medical service (EMS) team and after performance of all initial procedures (defibrillation, airway management, intravenous access establishment) will be randomized to standard vs. hyperinvasive arm. In hyperinvasive arm, mechanical compression device together with intranasal evaporative cooling will be instituted and patients will be transferred directly to cardiac center under ongoing CPR (cardiopulmonary resuscitation). After admission, ECLS inclusion/exclusion criteria will be evaluated and if achieved, veno-arterial ECLS will be started. Invasive investigation and standard post resuscitation care will follow. Patients in standard arm will be managed on scene. When ROSC achieved, they will be transferred to cardiac center and further treated as per recent guidelines. Primary outcome 6 months survival with good neurological outcome (Cerebral Performance Category 1–2). Secondary outcomes will include 30 day neurological and cardiac recovery. Discussion Authors introduce and offer a protocol of a proposed randomized study comparing a combined “hyperinvasive approach” to a standard of care in refractory OHCA. The protocol is opened for sharing by other cardiac centers with available ECLS and cathlab teams trained to admit patients with refractory cardiac arrest under ongoing CPR. A prove of concept study will be started soon. The aim of the authors is to establish a net of centers for a multicenter trial initiation in future. Ethics and registration The protocol has been approved by an Institutional Review Board, will be supported by a research grant from Internal Grant Agency of the Ministry of Health, Czech Republic NT 13225-4/2012 and has been registered under ClinicalTrials.gov identifier: NCT01511666.
Published: 2012
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10. Association between early airway intervention in the pre-hospital setting and outcomes in out of hospital cardiac arrest patients: A post-hoc analysis of the Target Temperature Management-2 (TTM2) trial.

Author: Battaglini D, Schiavetti I, Ball L, Jakobsen JC, Lilja G, Friberg H, Wendel-Garcia PD, Young PJ, Eastwood G, Chew MS, Unden J, Thomas M, Joannidis M, Nichol A, Lundin A, Hollenberg J, Hammond N, Saxena M, Martin A, Solar M, Taccone FS, Dankiewicz J, Nielsen N, Morten Grejs A, Wise MP, Hängghi M, Smid O, Patroniti N, and Robba C
Subjects: Humans, Male, Female, Middle Aged, Aged, Hypothermia, Induced methods, Out-of-Hospital Cardiac Arrest therapy, Out-of-Hospital Cardiac Arrest mortality, Emergency Medical Services methods, Intubation, Intratracheal methods, Airway Management methods, Cardiopulmonary Resuscitation methods
Abstract: Introduction: Airway management is a critical component of out-of-hospital cardiac arrest (OHCA) resuscitation. The primary aim of this study was to describe pre-hospital airway management in adult patients post-OHCA. Secondary aims were to investigate whether tracheal intubation (TI) versus use of supraglottic airway device (SGA) was associated with patients' outcomes, including ventilator-free days within 26 days of randomization, 6 months neurological outcome and mortality., Methods: Secondary analysis of the Target Temperature Management-2 (TTM2) trial conducted in 13 countries, including adult patients with OHCA and return of spontaneous circulation, with data available on pre-hospital airway management. A multivariate logistic regression model with backward stepwise selection was employed to assess whether TI versus SGA was associated with outcomes., Results: Of the 1900 TTM2 trial patients, 1702 patients (89.5%) were included, with a mean age of 64 years (Standard Deviation, SD = 13.53); 79.1% were males. Pre-hospital airway management was SGA in 484 (28.4%), and TI in 1218 (71.6%) patients. At hospital admission, 87.8% of patients with SGA and 98.5% with TI were mechanically ventilated (p < 0.001). In the multivariate analysis, TI in comparison with SGA was not independently associated with an increase in ventilator-free days within 26 days of randomization, improved neurological outcomes, or decreased mortality. The hazard ratio for mortality with TI vs. SGA was 1.06, 95%Confidence Interval (CI) 0.88-1.28, p = 0.54., Conclusions: In the multicentre randomized TTM2-trial including patients with OHCA, most patients received prehospital endotracheal intubation to manage their airway. The choice of pre-hospital airway device was not independently associated with patient clinical outcomes., Trial Registration Number: NCT02908308., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: “Fabio Silvio Taccone reports a relationship with Bard Medical that includes: funding grants. Fabio Silvio Taccone reports a relationship with ZOLL Medical Corporation that includes: funding grants. Manoj Saxena reports a relationship with Bard Medical that includes: consulting or advisory and speaking and lecture fees. Niklas Nielsen reports a relationship with Bard Medical that includes: consulting or advisory and speaking and lecture fees. Manoji Saxena reports a relationship with BrainCoo that includes: consulting or advisory and speaking and lecture fees. Niklas Nielsen reports a relationship with BrainCoo that includes: consulting or advisory and speaking and lecture fees. The other authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper”., (Copyright © 2024 Elsevier B.V. All rights reserved.)
Published: 2024
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11. Impact of routine extracorporeal cardiopulmonary resuscitation service on the availability of donor organs.

Author: Smalcova J, Krupickova P, Pokorna E, Franek O, Huptych M, Kavalkova P, Balik M, Malik J, Smid O, Svobodova E, Keleman R, and Belohlavek J
Abstract: Background: In refractory cardiac arrest, extracorporeal cardiopulmonary resuscitation may increase the survival chance. However, in cases of unsuccessful treatment, extracorporeal cardiopulmonary resuscitation may additionally provide an important source of organ donors. Therefore, we hypothesized that implementing extracorporeal cardiopulmonary resuscitation service into a high-volume cardiac arrest center's routine would increases organ donors' availability., Methods: Our retrospective observational study analyzed out-of-hospital cardiac arrest patients admitted to the General University Hospital in Prague between 2007 and 2020. The following groups were analyzed regarding the recruitment of donors: before and after extracorporeal cardiopulmonary resuscitation implementation. We assessed the number of donors referred, the number of organs harvested, and the organ's survival., Results: We analyzed the results of 1,158 patients after out-of-hospital cardiac arrest. In the conventional approach period, 11 donors were referred, of which 7 were accepted. During the extracorporeal cardiopulmonary resuscitation period, the number of donors increased to 80, of whom 42 were accepted. The number of donated organs was 18 and 119 in the respective periods, corresponding to 3.6 vs 13.2 (p = 0.033) harvested organs per year. One-year survival of transplanted organs was 94.4% vs 99.2%, and 5-year survival was 94.4% vs 95.9% in relevant periods. Conventional and extracorporeal cardiopulmonary resuscitation did not affect donor organ survival., Conclusion: Establishing a high-volume cardiac arrest center providing an extracorporeal cardiopulmonary resuscitation service may increase not only the number of prolonged cardiac arrest survivors but also the number of organ donors. In addition, the performances of donated organs were high and comparable between both treatment methods., Competing Interests: Conflicts of interest statement The corresponding author (JB) has received lecture honoraria from the Getinge, Abiomed and Resuscitec companies. The remaining authors report no conflicts of interest., (Copyright © 2024. Published by Elsevier Inc.)
Published: 2024
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12. Effect of intra-arrest transport, extracorporeal cardiopulmonary resuscitation and immediate invasive assessment in refractory out-of-hospital cardiac arrest: a long-term follow-up of the Prague OHCA trial.

Author: Rob D, Farkasovska K, Kreckova M, Smid O, Kavalkova P, Macoun J, Huptych M, Havrankova P, Gallo J, Pudil J, Dusik M, Havranek S, Linhart A, and Belohlavek J
Subjects: Humans, Follow-Up Studies, Quality of Life, Time Factors, Retrospective Studies, Out-of-Hospital Cardiac Arrest therapy, Cardiopulmonary Resuscitation
Abstract: Background: Randomized data evaluating the impact of the extracorporeal cardiopulmonary resuscitation (ECPR) approach on long-term clinical outcomes in patients with refractory out-of-hospital cardiac arrest (OHCA) are lacking. The objective of this follow-up study was to assess the long-term clinical outcomes of the ECPR-based versus CCPR approach., Methods: The Prague OHCA trial was a single-center, randomized, open-label trial. Patients with witnessed refractory OHCA of presumed cardiac origin, without return of spontaneous circulation, were randomized during ongoing resuscitation on scene to conventional CPR (CCPR) or an ECPR-based approach (intra-arrest transport, ECPR if ROSC is not achieved prehospital and immediate invasive assessment)., Results: From March 2013 to October 2020, 264 patients were randomized during ongoing resuscitation on scene, and 256 patients were enrolled. Long-term follow-up was performed 5.3 (interquartile range 3.8-7.2) years after initial randomization and was completed in 255 of 256 patients (99.6%). In total, 34/123 (27.6%) patients in the ECPR-based group and 26/132 (19.7%) in the CCPR group were alive (log-rank P = 0.01). There were no significant differences between the treatment groups in the neurological outcome, survival after hospital discharge, risk of hospitalization, major cardiovascular events and quality of life. Of long-term survivors, 1/34 (2.9%) in the ECPR-based arm and 1/26 (3.8%) in the CCPR arm had poor neurological outcome (both patients had a cerebral performance category score of 3)., Conclusions: Among patients with refractory OHCA, the ECPR-based approach significantly improved long-term survival. There were no differences in the neurological outcome, major cardiovascular events and quality of life between the groups, but the trial was possibly underpowered to detect a clinically relevant difference in these outcomes. Trial registration ClinicalTrials.gov Identifier: NCT01511666, Registered 19 January 2012., (© 2024. The Author(s).)
Published: 2024
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13. Serum lactate in refractory out-of-hospital cardiac arrest: Post-hoc analysis of the Prague OHCA study.

Author: Dusik M, Rob D, Smalcova J, Havranek S, Karasek J, Smid O, Brodska HL, Kavalkova P, Huptych M, Bakker J, and Belohlavek J
Subjects: Humans, Male, Middle Aged, Female, Prognosis, Hypoxia, Retrospective Studies, Out-of-Hospital Cardiac Arrest therapy, Extracorporeal Membrane Oxygenation, Cardiopulmonary Resuscitation
Abstract: Background: The severity of tissue hypoxia is routinely assessed by serum lactate. We aimed to determine whether early lactate levels predict outcomes in refractory out-of-hospital cardiac arrest (OHCA) treated by conventional and extracorporeal cardiopulmonary resuscitation (ECPR)., Methods: This study is a post-hoc analysis of a randomized Prague OHCA study (NCT01511666) assessing serum lactate levels in refractory OHCA treated by ECPR (the ECPR group) or conventional resuscitation with prehospital achieved return of spontaneous circulation (the ROSC group). Lactate concentrations measured on admission and every 4 hours (h) during the first 24 h were used to determine their relationship with the neurological outcome (the best Cerebral Performance Category score within 180 days post-cardiac arrest)., Results: In the ECPR group (92 patients, median age 58.5 years, 83% male) 26% attained a favorable neurological outcome. In the ROSC group (82 patients, median age 55 years, 83% male) 59% achieved a favorable neurological outcome. In ECPR patients lactate concentrations could discriminate favorable outcome patients, but not consistently in the ROSC group. On admission, serum lactate >14.0 mmol/L for ECPR (specificity 87.5%, sensitivity 54.4%) and >10.8 mmol/L for the ROSC group (specificity 83%, sensitivity 41.2%) predicted an unfavorable outcome., Conclusion: In refractory OHCA serum lactate concentrations measured anytime during the first 24 h after admission to the hospital were found to correlate with the outcome in patients treated by ECPR but not in patients with prehospital ROSC. A single lactate measurement is not enough for a reliable outcome prediction and cannot be used alone to guide treatment., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)
Published: 2023
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14. Pulmonary embolism-related refractory out-of-hospital cardiac arrest and extracorporeal cardiopulmonary resuscitation: Prague OHCA study post hoc analysis.

Author: Pudil J, Rob D, Smalcova J, Smid O, Huptych M, Vesela M, Kovarnik T, and Belohlavek J
Subjects: Humans, Female, Male, Retrospective Studies, Out-of-Hospital Cardiac Arrest etiology, Out-of-Hospital Cardiac Arrest therapy, Extracorporeal Membrane Oxygenation methods, Cardiopulmonary Resuscitation methods, Pulmonary Embolism etiology, Pulmonary Embolism complications
Abstract: Aims: Refractory out-of-hospital cardiac arrest (r-OHCA) in patients with pulmonary embolism (PE) is associated with poor outcomes. The role of extracorporeal cardiopulmonary resuscitation (ECPR) in this patient group is uncertain. This study aims to analyse clinical course, outcomes, and the effect of an invasive procedure, including ECPR, in a randomized population., Methods and Results: A post hoc analysis of a randomized controlled trial (Prague OHCA study) was conducted to evaluate the effect of ECPR vs. a standard approach in r-OHCA. A subgroup of patients with PE-related r-OHCA was identified, and procedural and outcome characteristics, including favourable neurological survival, organ donation, and complications, were compared to patients without PE. Pulmonary embolism was identified as a cause of r-OHCA in 24 of 256 (9.4%) enrolled patients. Patients with PE were more likely to be women [12/24 (50%) vs. 32/232 (13.8%); P < 0.001] and presented more frequently with an initial non-shockable rhythm [23/24 (95.8%) vs. 77/232 (33.2%); P < 0.001], as well as more severe acidosis at admission [median pH (interquartile range); 6.83 (6.75-6.88) vs. 6.98 (6.82-7.14); P < 0.001]. Their favourable 180-day neurological survival was significantly lower [2/24 (8.3%) vs. 66/232 (28.4%); P = 0.049], but the proportion of accepted organ donors was higher (16.7 vs. 4.7%, P = 0.04)., Conclusion: Refractory out-of-hospital cardiac arrest due to PE has a different presentation and inferior outcomes compared to other causes but may represent an important source of organ donations. The ECPR method did not improve patient outcomes., Competing Interests: Conflict of interest: Dr. Belohlavek reported receiving lecture honoraria from Maquet Company. No other authors reported disclosures., (© The Author(s) 2023. Published by Oxford University Press on behalf of the European Society of Cardiology.)
Published: 2023
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15. Initial rhythm and survival in refractory out-of-hospital cardiac arrest. Post-hoc analysis of the Prague OHCA randomized trial.

Author: Havranek S, Fingrova Z, Rob D, Smalcova J, Kavalkova P, Franek O, Smid O, Huptych M, Dusik M, Linhart A, and Belohlavek J
Subjects: Female, Humans, Middle Aged, Male, Treatment Outcome, Prognosis, Out-of-Hospital Cardiac Arrest therapy, Emergency Medical Services, Cardiopulmonary Resuscitation
Abstract: Background: The prognosis of refractory out-of-hospital cardiac arrest (OHCA) is generally poor. A recent Prague OHCA study has demonstrated that an invasive approach (including extracorporeal cardiopulmonary resuscitation, ECPR) is a feasible and effective treatment strategy in refractory OHCA. Here we present a post-hoc analysis of the role of initial rhythm on patient outcomes., Methods: The study enrolled patients who had a witnessed OHCA of presumed cardiac cause without early recovery of spontaneous circulation. The initial rhythm was classified as either a shockable or a non-shockable rhythm. The primary outcome was a composite of 180 day-survival with Cerebral Performance in Category 1 or 2., Results: 256 (median age 58y, 17% females) patients were enrolled. The median (IQR) duration of resuscitation was 52 (33-68) minutes. 156 (61%) and 100 (39%) of patients manifested a shockable and non-shockable rhythm, respectively. The primary outcome was achieved in 63 (40%) patients with a shockable rhythm and in 5 (5%) patients with a non-shockable rhythm (p < 0.001). When patients were analyzed separately based on whether the treatment was invasive (n = 124) or standard (n = 132), the difference in the primary endpoint between shockable and non-shockable initial rhythms remained significant (35/72 (49%) vs 4/52 (8%) in the invasive arm and 28/84 (33%) vs 1/48 (2%) in the standard arm; p < 0.001)., Conclusion: An initial shockable rhythm and treatment with an invasive approach is associated with a reasonable neurologically favorable survival for 180 days despite refractory OHCA. Non-shockable initial rhythms bear a poor prognosis in refractory OHCA even when ECPR is readily available., (Copyright © 2022 Elsevier B.V. All rights reserved.)
Published: 2022
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16. Hypothermic versus Normothermic Temperature Control after Cardiac Arrest.

Author: Holgersson J, Meyer MAS, Dankiewicz J, Lilja G, Ullén S, Hassager C, Cronberg T, Wise MP, Bělohlávek J, Hovdenes J, Pelosi P, Erlinge D, Schrag C, Smid O, Brunetti I, Rylander C, Young PJ, Saxena M, Åneman A, Cariou A, Callaway C, Eastwood GM, Haenggi M, Joannidis M, Keeble TR, Kirkegaard H, Leithner C, Levin H, Nichol AD, Morgan MPG, Nordberg P, Oddo M, Storm C, Taccone FS, Thomas M, Bro-Jeppesen J, Horn J, Kjaergaard J, Kuiper M, Pellis T, Stammet P, Wanscher MJ, Friberg H, Nielsen N, and Jakobsen JC
Subjects: Humans, Temperature, Body Temperature, Hypothermia, Hypothermia, Induced, Heart Arrest therapy
Abstract: BACKGROUND: The evidence for temperature control for comatose survivors of cardiac arrest is inconclusive. Controversy exists as to whether the effects of hypothermia differ per the circumstances of the cardiac arrest or patient characteristics. METHODS: An individual patient data meta-analysis of the Targeted Temperature Management at 33°C versus 36°C after Cardiac Arrest (TTM) and Hypothermia versus Normothermia after Out-of-Hospital Cardiac Arrest (TTM2) trials was conducted. The intervention was hypothermia at 33°C and the comparator was normothermia. The primary outcome was all-cause mortality at 6 months. Secondary outcomes included poor functional outcome (modified Rankin scale score of 4 to 6) at 6 months. Predefined subgroups based on the design variables in the original trials were tested for interaction with the intervention as follows: age (older or younger than the median), sex (female or male), initial cardiac rhythm (shockable or nonshockable), time to return of spontaneous circulation (above or below the median), and circulatory shock on admission (presence or absence). RESULTS: The primary analyses included 2800 patients, with 1403 assigned to hypothermia and 1397 to normothermia. Death occurred for 691 of 1398 participants (49.4%) in the hypothermia group and 666 of 1391 participants (47.9%) in the normothermia group (relative risk with hypothermia, 1.03; 95% confidence interval [CI], 0.96 to 1.11; P=0.41). A poor functional outcome occurred for 733 of 1350 participants (54.3%) in the hypothermia group and 718 of 1330 participants (54.0%) in the normothermia group (relative risk with hypothermia, 1.01; 95% CI, 0.94 to 1.08; P=0.88). Outcomes were consistent in the predefined subgroups. CONCLUSIONS: Hypothermia at 33°C did not decrease 6-month mortality compared with normothermia after out-of-hospital cardiac arrest. (Funded by Vetenskapsrådet; ClinicalTrials.gov numbers NCT02908308 and NCT01020916.)
Published: 2022
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17. Extracorporeal versus conventional cardiopulmonary resuscitation for refractory out-of-hospital cardiac arrest: a secondary analysis of the Prague OHCA trial.

Author: Rob D, Smalcova J, Smid O, Kral A, Kovarnik T, Zemanek D, Kavalkova P, Huptych M, Komarek A, Franek O, Havranek S, Linhart A, and Belohlavek J
Subjects: Adult, Female, Humans, Male, Middle Aged, Advanced Cardiac Life Support, Cardiopulmonary Resuscitation methods, Emergency Medical Services methods, Extracorporeal Membrane Oxygenation methods, Out-of-Hospital Cardiac Arrest therapy
Abstract: Background: Survival rates in refractory out-of-hospital cardiac arrest (OHCA) remain low with conventional advanced cardiac life support (ACLS). Extracorporeal life support (ECLS) implantation during ongoing resuscitation, a method called extracorporeal cardiopulmonary resuscitation (ECPR), may increase survival. This study examined whether ECPR is associated with improved outcomes., Methods: Prague OHCA trial enrolled adults with a witnessed refractory OHCA of presumed cardiac origin. In this secondary analysis, the effect of ECPR on 180-day survival using Kaplan-Meier estimates and Cox proportional hazard model was examined., Results: Among 256 patients (median age 58 years, 83% male) with median duration of resuscitation 52.5 min (36.5-68), 83 (32%) patients achieved prehospital ROSC during ongoing conventional ACLS prehospitally, 81 (32%) patients did not achieve prehospital ROSC with prolonged conventional ACLS, and 92 (36%) patients did not achieve prehospital ROSC and received ECPR. The overall 180-day survival was 51/83 (61.5%) in patients with prehospital ROSC, 1/81 (1.2%) in patients without prehospital ROSC treated with conventional ACLS and 22/92 (23.9%) in patients without prehospital ROSC treated with ECPR (log-rank p < 0.001). After adjustment for covariates (age, sex, initial rhythm, prehospital ROSC status, time of emergency medical service arrival, resuscitation time, place of cardiac arrest, percutaneous coronary intervention status), ECPR was associated with a lower risk of 180-day death (HR 0.21, 95% CI 0.14-0.31; P < 0.001)., Conclusions: In this secondary analysis of the randomized refractory OHCA trial, ECPR was associated with improved 180-day survival in patients without prehospital ROSC., Trial Registration: ClinicalTrials.gov Identifier: NCT01511666, Registered 19 January 2012., (© 2022. The Author(s).)
Published: 2022
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18. Coronary angiography and percutaneous coronary intervention in cardiac arrest patients without return of spontaneous circulation.

Author: Rob D, Kavalkova P, Smalcova J, Kral A, Kovarnik T, Zemanek D, Franěk O, Smid O, Havranek S, Linhart A, and Belohlavek J
Subjects: Coronary Angiography methods, Humans, Return of Spontaneous Circulation, Cardiopulmonary Resuscitation methods, Out-of-Hospital Cardiac Arrest therapy, Percutaneous Coronary Intervention methods
Abstract: Objectives: This study aimed to examine coronary angiography (CAG) findings, percutaneous coronary intervention (PCI) results and outcomes in out-of-hospital cardiac arrest patients (OHCA) without return of spontaneous circulation (ROSC) on admission to hospital., Methods: We analyzed the OHCA register and compared CAG, PCI, and outcome data in patients with and without ROSC on admission to hospital., Results: Between January 2012 and December 2020, 697 OHCA patients were analyzed. Of these, 163 (23%) did not have ROSC at admission. Patients without ROSC were younger (59 vs. 61 years, p = 0.001) and had a longer resuscitation time (62 vs. 18 minutes, p < 0.001) than patients with ROSC. Significant coronary artery disease was highly prevalent in both groups (65% vs. 68%, p = 0.48). Patients without ROSC had higher rates of acute coronary occlusions (42% vs. 33%, p = 0.046), specifically affecting the left main stem (16% vs. 1%, p < 0.001). PCI was performed in 81 patients (50%) without ROSC and in 295 (55%) with ROSC (p = 0.21). The success rate was 86% in patients without ROSC and 90% in patients with ROSC (p = 0.33). Thirty-day survival was 24% in patients without ROSC and 70% in patients with ROSC., Conclusions: OHCA patients without ROSC on admission to hospital had higher acute coronary occlusion rates than patients with prehospital ROSC. PCI is feasible with a high success rate in patients without ROSC. Despite prolonged resuscitation times, meaningful survival in patients admitted without ROSC is achievable., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: [This work was supported by a research grant from the Ministry of Health, Czech Republic – conceptual development of research organization, General University Hospital in Prague, 00064165. There is no other relevant conflict of interest.], (Copyright © 2022 Elsevier B.V. All rights reserved.)
Published: 2022
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19. Gender differences and survival after out of hospital cardiac arrest.

Author: Rob D, Kavalkova P, Smalcova J, Franek O, Smid O, Komarek A, Pisinger M, and Belohlavek J
Subjects: Female, Humans, Male, Registries, Retrospective Studies, Sex Factors, Treatment Outcome, Cardiopulmonary Resuscitation, Emergency Medical Services, Out-of-Hospital Cardiac Arrest therapy
Abstract: Background: Published evidence regarding the effect of gender on outcome after out of hospital cardiac arrest (OHCA) is inconsistent. We aimed to investigate the association of gender to outcome and resuscitation characteristics in OHCA patients admitted to the cardiac arrest center., Methods: In this retrospective analysis of prospective registry data, all patients admitted for OHCA were included. The influence of gender on 30-day survival and good neurological outcome (cerebral performance category of 1 or 2) were examined using Kaplan-Meier estimates and multivariable logistic regression., Results: In total, 932 patients were analysed (239 women, 26%). Women were older (64 vs 60 years, p < 0.001) and less commonly had a shockable rhythm (47% vs 65%, P < 0.001) compared to men. Women were less likely to have a cardiac cause of arrest (54% vs. 75%, p < 0.001), received less therapeutic hypothermia (74% vs 86%, p < 0.001) and coronary angiography (63% vs. 79%, p < 0.001). The overall 30-day survival was lower for women (45% vs. 53%, log-rank p = 0.005) as well as good neurological outcome (37% vs. 46%, p = 0.008). However, according to the multivariate logistic regression, gender was not associated with survival (OR 0.98, 95% CI 0.65-1.50, p = 0.94) nor with good neurological outcome (OR 0.91, 95% CI 0.59-1.40, p = 0.67)., Conclusion: Women admitted for OHCA to a cardiac center had a different cause of arrest that had a different treatment and outcome compared to men. Survival and good neurological outcome were lower in women, however, after adjusting for baseline characteristics, gender was not associated with survival nor neurological outcome., Competing Interests: Declaration of Competing Interest Daniel Rob, Petra Kavalkova, Jana Smalcova and Jan Belohlavek received funding from the research grant (Ministry of Health, Czech Republic – conceptual development of research organization, General University Hospital in Prague, 00064165). There was no other relevant conflict of interest., (Copyright © 2022 Elsevier Inc. All rights reserved.)
Published: 2022
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20. Effect of Intra-arrest Transport, Extracorporeal Cardiopulmonary Resuscitation, and Immediate Invasive Assessment and Treatment on Functional Neurologic Outcome in Refractory Out-of-Hospital Cardiac Arrest: A Randomized Clinical Trial.

Author: Belohlavek J, Smalcova J, Rob D, Franek O, Smid O, Pokorna M, Horák J, Mrazek V, Kovarnik T, Zemanek D, Kral A, Havranek S, Kavalkova P, Kompelentova L, Tomková H, Mejstrik A, Valasek J, Peran D, Pekara J, Rulisek J, Balik M, Huptych M, Jarkovsky J, Malik J, Valerianova A, Mlejnsky F, Kolouch P, Havrankova P, Romportl D, Komarek A, and Linhart A
Subjects: Aged, Extracorporeal Membrane Oxygenation, Female, Humans, Male, Medical Futility, Middle Aged, Out-of-Hospital Cardiac Arrest diagnosis, Out-of-Hospital Cardiac Arrest mortality, Time-to-Treatment, Cardiopulmonary Resuscitation methods, Out-of-Hospital Cardiac Arrest therapy, Transportation of Patients
Abstract: Importance: Out-of-hospital cardiac arrest (OHCA) has poor outcome. Whether intra-arrest transport, extracorporeal cardiopulmonary resuscitation (ECPR), and immediate invasive assessment and treatment (invasive strategy) is beneficial in this setting remains uncertain., Objective: To determine whether an early invasive approach in adults with refractory OHCA improves neurologically favorable survival., Design, Setting, and Participants: Single-center, randomized clinical trial in Prague, Czech Republic, of adults with a witnessed OHCA of presumed cardiac origin without return of spontaneous circulation. A total of 256 participants, of a planned sample size of 285, were enrolled between March 2013 and October 2020. Patients were observed until death or day 180 (last patient follow-up ended on March 30, 2021)., Interventions: In the invasive strategy group (n = 124), mechanical compression was initiated, followed by intra-arrest transport to a cardiac center for ECPR and immediate invasive assessment and treatment. Regular advanced cardiac life support was continued on-site in the standard strategy group (n = 132)., Main Outcomes and Measures: The primary outcome was survival with a good neurologic outcome (defined as Cerebral Performance Category [CPC] 1-2) at 180 days after randomization. Secondary outcomes included neurologic recovery at 30 days (defined as CPC 1-2 at any time within the first 30 days) and cardiac recovery at 30 days (defined as no need for pharmacological or mechanical cardiac support for at least 24 hours)., Results: The trial was stopped at the recommendation of the data and safety monitoring board when prespecified criteria for futility were met. Among 256 patients (median age, 58 years; 44 [17%] women), 256 (100%) completed the trial. In the main analysis, 39 patients (31.5%) in the invasive strategy group and 29 (22.0%) in the standard strategy group survived to 180 days with good neurologic outcome (odds ratio [OR], 1.63 [95% CI, 0.93 to 2.85]; difference, 9.5% [95% CI, -1.3% to 20.1%]; P = .09). At 30 days, neurologic recovery had occurred in 38 patients (30.6%) in the invasive strategy group and in 24 (18.2%) in the standard strategy group (OR, 1.99 [95% CI, 1.11 to 3.57]; difference, 12.4% [95% CI, 1.9% to 22.7%]; P = .02), and cardiac recovery had occurred in 54 (43.5%) and 45 (34.1%) patients, respectively (OR, 1.49 [95% CI, 0.91 to 2.47]; difference, 9.4% [95% CI, -2.5% to 21%]; P = .12). Bleeding occurred more frequently in the invasive strategy vs standard strategy group (31% vs 15%, respectively)., Conclusions and Relevance: Among patients with refractory out-of-hospital cardiac arrest, the bundle of early intra-arrest transport, ECPR, and invasive assessment and treatment did not significantly improve survival with neurologically favorable outcome at 180 days compared with standard resuscitation. However, the trial was possibly underpowered to detect a clinically relevant difference., Trial Registration: ClinicalTrials.gov Identifier: NCT01511666.
Published: 2022
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21. Efficacy and safety of 1C class antiarrhythmic agent (propafenone) for supraventricular arrhythmias in septic shock compared to amiodarone: protocol of a prospective randomised double-blind study.

Author: Balik M, Waldauf P, Maly M, Matousek V, Brozek T, Rulisek J, Porizka M, Sachl R, Otahal M, Brestovansky P, Svobodova E, Flaksa M, Stach Z, Pazout J, Duska F, Smid O, and Stritesky M
Subjects: Adolescent, Adult, Aged, Aged, 80 and over, Anti-Arrhythmia Agents therapeutic use, Double-Blind Method, Female, Follow-Up Studies, Humans, Male, Middle Aged, Prospective Studies, Shock, Septic drug therapy, Shock, Septic physiopathology, Stroke Volume drug effects, Tachycardia, Supraventricular complications, Tachycardia, Supraventricular physiopathology, Treatment Outcome, Ventricular Function, Left drug effects, Young Adult, Amiodarone therapeutic use, Propafenone therapeutic use, Shock, Septic complications, Tachycardia, Supraventricular drug therapy
Abstract: Introduction: Supraventricular arrhythmias contribute to haemodynamic compromise in septic shock. A retrospective study generated the hypothesis that propafenone could be more effective than amiodarone in achieving and maintaining sinus rhythm (SR). Certain echocardiographic parameters may predict a successful cardioversion and help in the decision on rhythm or rate control strategy., Methods and Analysis: The trial includes septic shock patients with new-onset arrhythmia, but without severe impairment of the left ventricular ejection fraction. After baseline echocardiography, the patient is randomised to receive a bolus and maintenance dose of either amiodarone or propafenone. The primary outcome is the proportion of patients that have achieved rhythm control at 24 hours after the start of the infusion. The secondary outcomes are the percentages of patients that needed rescue treatments (DC cardioversion or unblinding and crossover of the antiarrhythmics), the recurrence of arrhythmias, intensive care unit mortality, 28-day and 1-year mortality. In the posthoc analysis, we separately assess subgroups of patients with pulmonary hypertension and right ventricular dysfunction. In the exploratory part of the study, we assess whether the presence of a transmitral diastolic A wave and its higher velocity-time integral is predictive for the sustainability of mechanical SR and whether the indexed left atrial endsystolic volume is predictive of recurrent arrhythmia. Considering that the restoration of SR within 24 hours occurred in 74% of the amiodarone-treated patients and in 89% of the patients treated with propafenone, we plan to include 200 patients to have an 80% chance to demonstrate the superiority of propafenone at p=0.05., Ethics and Dissemination: The trial is recruiting patients according to its second protocol version approved by the University Hospital Ethical Board on the 6 October 2017 (No. 1691/16S-IV). The results will be disseminated through peer reviewed publications and conference presentations., Trial Registration Number: NCT03029169., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
Published: 2019
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22. Dysglycemia, Glycemic Variability, and Outcome After Cardiac Arrest and Temperature Management at 33°C and 36°C.

Author: Borgquist O, Wise MP, Nielsen N, Al-Subaie N, Cranshaw J, Cronberg T, Glover G, Hassager C, Kjaergaard J, Kuiper M, Smid O, Walden A, and Friberg H
Subjects: Female, Glasgow Outcome Scale, Humans, Hyperglycemia physiopathology, Hypoglycemia physiopathology, Male, Time Factors, Blood Glucose physiology, Body Temperature, Cardiopulmonary Resuscitation methods, Hypothermia, Induced methods, Out-of-Hospital Cardiac Arrest mortality, Out-of-Hospital Cardiac Arrest physiopathology, Out-of-Hospital Cardiac Arrest therapy
Abstract: Objectives: Dysglycemia and glycemic variability are associated with poor outcomes in critically ill patients. Targeted temperature management alters blood glucose homeostasis. We investigated the association between blood glucose concentrations and glycemic variability and the neurologic outcomes of patients randomized to targeted temperature management at 33°C or 36°C after cardiac arrest., Design: Post hoc analysis of the multicenter TTM-trial. Primary outcome of this analysis was neurologic outcome after 6 months, referred to as "Cerebral Performance Category.", Setting: Thirty-six sites in Europe and Australia., Patients: All 939 patients with out-of-hospital cardiac arrest of presumed cardiac cause that had been included in the TTM-trial., Interventions: Targeted temperature management at 33°C or 36°C., Measurements and Main Results: Nonparametric tests as well as multiple logistic regression and mixed effects logistic regression models were used. Median glucose concentrations on hospital admission differed significantly between Cerebral Performance Category outcomes (p < 0.0001). Hyper- and hypoglycemia were associated with poor neurologic outcome (p = 0.001 and p = 0.054). In the multiple logistic regression models, the median glycemic level was an independent predictor of poor Cerebral Performance Category (Cerebral Performance Category, 3-5) with an odds ratio (OR) of 1.13 in the adjusted model (p = 0.008; 95% CI, 1.03-1.24). It was also a predictor in the mixed model, which served as a sensitivity analysis to adjust for the multiple time points. The proportion of hyperglycemia was higher in the 33°C group compared with the 36°C group., Conclusion: Higher blood glucose levels at admission and during the first 36 hours, and higher glycemic variability, were associated with poor neurologic outcome and death. More patients in the 33°C treatment arm had hyperglycemia.
Published: 2017
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23. Safety, feasibility, and outcomes of induced hypothermia therapy following in-hospital cardiac arrest-evaluation of a large prospective registry*.

Author: Dankiewicz J, Schmidbauer S, Nielsen N, Kern KB, Mooney MR, Stammet P, Riker RR, Rubertsson S, Seder D, Smid O, Sunde K, Søreide E, Unger BT, and Friberg H
Subjects: Age Factors, Aged, Arrhythmias, Cardiac, Body Temperature, Comorbidity, Critical Care methods, Female, Health Status Indicators, Humans, Male, Middle Aged, Prospective Studies, Registries, Sex Factors, Time Factors, Treatment Outcome, Coma epidemiology, Heart Arrest complications, Heart Arrest therapy, Hypothermia, Induced methods, Hypothermia, Induced mortality
Abstract: Objectives: Despite a lack of randomized trials, practice guidelines recommend that mild induced hypothermia be considered for comatose survivors of in-hospital cardiac arrest. This study describes the safety, feasibility, and outcomes of mild induced hypothermia treatment following in-hospital cardiac arrest., Design: Prospective, observational, registry-based study., Setting: Forty-six critical care facilities in eight countries in Europe and the United States reporting in the Hypothermia Network Registry and the International Cardiac Arrest Registry., Patients: A total of 663 patients with in-hospital cardiac arrest and treated with mild induced hypothermia were included between January 2004 and February 2012., Interventions: None., Measurements and Main Results: A cerebral performance category of 1 or 2 was considered a good outcome. At hospital discharge 41% of patients had a good outcome. At median 6-month follow-up, 34% had a good outcome. Among in-hospital deaths, 52% were of cardiac causes and 44% of cerebral cause. A higher initial body temperature was associated with reduced odds of a good outcome (odds ratio, 0.79; 95% CI, 0.68-0.92). Adverse events were common; bleeding requiring transfusion (odds ratio, 0.56; 95% CI, 0.31-1.00) and sepsis (odds ratio, 0.52; 95% CI, 0.30-0.91) were associated with reduced odds for a good outcome., Conclusions: In this registry study of an in-hospital cardiac arrest population treated with mild induced hypothermia, we found a 41% good outcome at hospital discharge and 34% at follow-up. Infectious complications occurred in 43% of cases, and 11% of patients required a transfusion for bleeding. The majority of deaths were of cardiac origin.
Published: 2014
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24. Targeted temperature management at 33°C versus 36°C after cardiac arrest.

Author: Nielsen N, Wetterslev J, Cronberg T, Erlinge D, Gasche Y, Hassager C, Horn J, Hovdenes J, Kjaergaard J, Kuiper M, Pellis T, Stammet P, Wanscher M, Wise MP, Åneman A, Al-Subaie N, Boesgaard S, Bro-Jeppesen J, Brunetti I, Bugge JF, Hingston CD, Juffermans NP, Koopmans M, Køber L, Langørgen J, Lilja G, Møller JE, Rundgren M, Rylander C, Smid O, Werer C, Winkel P, and Friberg H
Subjects: Adult, Aged, Body Temperature, Female, Follow-Up Studies, Humans, Kaplan-Meier Estimate, Male, Middle Aged, Models, Statistical, Out-of-Hospital Cardiac Arrest complications, Out-of-Hospital Cardiac Arrest mortality, Treatment Failure, Unconsciousness etiology, Withholding Treatment, Cardiopulmonary Resuscitation methods, Hypothermia, Induced, Out-of-Hospital Cardiac Arrest therapy
Abstract: Background: Unconscious survivors of out-of-hospital cardiac arrest have a high risk of death or poor neurologic function. Therapeutic hypothermia is recommended by international guidelines, but the supporting evidence is limited, and the target temperature associated with the best outcome is unknown. Our objective was to compare two target temperatures, both intended to prevent fever., Methods: In an international trial, we randomly assigned 950 unconscious adults after out-of-hospital cardiac arrest of presumed cardiac cause to targeted temperature management at either 33°C or 36°C. The primary outcome was all-cause mortality through the end of the trial. Secondary outcomes included a composite of poor neurologic function or death at 180 days, as evaluated with the Cerebral Performance Category (CPC) scale and the modified Rankin scale., Results: In total, 939 patients were included in the primary analysis. At the end of the trial, 50% of the patients in the 33°C group (235 of 473 patients) had died, as compared with 48% of the patients in the 36°C group (225 of 466 patients) (hazard ratio with a temperature of 33°C, 1.06; 95% confidence interval [CI], 0.89 to 1.28; P=0.51). At the 180-day follow-up, 54% of the patients in the 33°C group had died or had poor neurologic function according to the CPC, as compared with 52% of patients in the 36°C group (risk ratio, 1.02; 95% CI, 0.88 to 1.16; P=0.78). In the analysis using the modified Rankin scale, the comparable rate was 52% in both groups (risk ratio, 1.01; 95% CI, 0.89 to 1.14; P=0.87). The results of analyses adjusted for known prognostic factors were similar., Conclusions: In unconscious survivors of out-of-hospital cardiac arrest of presumed cardiac cause, hypothermia at a targeted temperature of 33°C did not confer a benefit as compared with a targeted temperature of 36°C. (Funded by the Swedish Heart-Lung Foundation and others; TTM ClinicalTrials.gov number, NCT01020916.).
Published: 2013
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25. Hydrogenosome-localization of arginine deiminase in Trichomonas vaginalis.

Author: Morada M, Smid O, Hampl V, Sutak R, Lam B, Rappelli P, Dessì D, Fiori PL, Tachezy J, and Yarlett N
Subjects: Gene Expression Regulation, Enzymologic, Hydrolases genetics, Organelles enzymology, Phylogeny, Protein Transport, Recombinant Fusion Proteins genetics, Recombinant Fusion Proteins metabolism, Hydrolases metabolism, Trichomonas vaginalis enzymology, Trichomonas vaginalis genetics
Abstract: The arginine dihydrolase (ADH) pathway has an analogous function to the urea cycle in mitochondria-containing cells, by removing nitrogen from amino acids and generating ATP. Subcellular localization of the ADH pathway enzymes in Trichomonas vaginalis revealed that arginine deiminase (ADI) localizes to the hydrogenosome, a mitochondrion-like organelle of anaerobic protists. However the other enzymes of the ADH pathway, ornithine carbamyltransferase and carbamate kinase localize to the cytosol. Three gene sequences of T. vaginalis ADI (ADI 1-3) were identified in the T. vaginalis genome, all having putative mitochondrial targeting sequences. The ADI sequences were cloned and used to probe T. vaginalis using a carboxyterminal di-hemogglutinin epitope tag which demonstrated co-localization with malic enzyme confirming the hydrogenosome localization of this enzyme., (Copyright Â© 2010 Elsevier B.V. All rights reserved.)
Published: 2011
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26. N-myristoyltransferase inhibitors as new leads to treat sleeping sickness.

Author: Frearson JA, Brand S, McElroy SP, Cleghorn LA, Smid O, Stojanovski L, Price HP, Guther ML, Torrie LS, Robinson DA, Hallyburton I, Mpamhanga CP, Brannigan JA, Wilkinson AJ, Hodgkinson M, Hui R, Qiu W, Raimi OG, van Aalten DM, Brenk R, Gilbert IH, Read KD, Fairlamb AH, Ferguson MA, Smith DF, and Wyatt PG
Subjects: Acyltransferases metabolism, Aminopyridines chemistry, Aminopyridines metabolism, Aminopyridines pharmacology, Aminopyridines therapeutic use, Animals, Antiparasitic Agents chemistry, Antiparasitic Agents metabolism, Enzyme Assays, Enzyme Inhibitors chemistry, Enzyme Inhibitors metabolism, Enzyme Inhibitors pharmacology, Enzyme Inhibitors therapeutic use, Female, Humans, Mice, Molecular Structure, Pyrazoles chemistry, Pyrazoles metabolism, Pyrazoles pharmacology, Pyrazoles therapeutic use, Rats, Sulfonamides chemistry, Sulfonamides metabolism, Sulfonamides pharmacology, Sulfonamides therapeutic use, Time Factors, Trypanosoma brucei brucei growth & development, Acyltransferases antagonists & inhibitors, Antiparasitic Agents pharmacology, Antiparasitic Agents therapeutic use, Trypanosoma brucei brucei drug effects, Trypanosoma brucei brucei enzymology, Trypanosomiasis, African drug therapy, Trypanosomiasis, African parasitology
Abstract: African sleeping sickness or human African trypanosomiasis, caused by Trypanosoma brucei spp., is responsible for approximately 30,000 deaths each year. Available treatments for this disease are poor, with unacceptable efficacy and safety profiles, particularly in the late stage of the disease when the parasite has infected the central nervous system. Here we report the validation of a molecular target and the discovery of associated lead compounds with the potential to address this lack of suitable treatments. Inhibition of this target-T. brucei N-myristoyltransferase-leads to rapid killing of trypanosomes both in vitro and in vivo and cures trypanosomiasis in mice. These high-affinity inhibitors bind into the peptide substrate pocket of the enzyme and inhibit protein N-myristoylation in trypanosomes. The compounds identified have promising pharmaceutical properties and represent an opportunity to develop oral drugs to treat this devastating disease. Our studies validate T. brucei N-myristoyltransferase as a promising therapeutic target for human African trypanosomiasis.
Published: 2010
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26 results on '"Smid O"'

1. Initial rhythm and survival in refractory out-of-hospital cardiac arrest. Post-hoc analysis of the Prague OHCA randomized trial

2. Hypothermia versus Normothermia after Out-of-Hospital Cardiac Arrest

3. Hypothermia versus Normothermia after Out-of-Hospital Cardiac Arrest

4. Feasibility of cerebral blood flow and oxygenation monitoring by continuous transcranial Doppler combined with cerebral oximetry in a patient with refractory cardiac arrest treated by extracorporeal life support

5. Abstracts

6. The Protein Import Channel in the Outer Mitosomal Membrane of Giardia intestinalis

7. Is it safe to thrombolyse patients with pulmonary embolism and right heart mobile thrombi?

8. Role of IscS in Fe-S cluster assembly in Trypanosoma brucei

9. Hyperinvasive approach to out-of hospital cardiac arrest using mechanical chest compression device, prehospital intraarrest cooling, extracorporeal life support and early invasive assessment compared to standard of care. A randomized parallel groups comparative study proposal. 'Prague OHCA study'

10. Association between early airway intervention in the pre-hospital setting and outcomes in out of hospital cardiac arrest patients: A post-hoc analysis of the Target Temperature Management-2 (TTM2) trial.

11. Impact of routine extracorporeal cardiopulmonary resuscitation service on the availability of donor organs.

12. Effect of intra-arrest transport, extracorporeal cardiopulmonary resuscitation and immediate invasive assessment in refractory out-of-hospital cardiac arrest: a long-term follow-up of the Prague OHCA trial.

13. Serum lactate in refractory out-of-hospital cardiac arrest: Post-hoc analysis of the Prague OHCA study.

14. Pulmonary embolism-related refractory out-of-hospital cardiac arrest and extracorporeal cardiopulmonary resuscitation: Prague OHCA study post hoc analysis.

15. Initial rhythm and survival in refractory out-of-hospital cardiac arrest. Post-hoc analysis of the Prague OHCA randomized trial.

16. Hypothermic versus Normothermic Temperature Control after Cardiac Arrest.

17. Extracorporeal versus conventional cardiopulmonary resuscitation for refractory out-of-hospital cardiac arrest: a secondary analysis of the Prague OHCA trial.

18. Coronary angiography and percutaneous coronary intervention in cardiac arrest patients without return of spontaneous circulation.

19. Gender differences and survival after out of hospital cardiac arrest.

20. Effect of Intra-arrest Transport, Extracorporeal Cardiopulmonary Resuscitation, and Immediate Invasive Assessment and Treatment on Functional Neurologic Outcome in Refractory Out-of-Hospital Cardiac Arrest: A Randomized Clinical Trial.

21. Efficacy and safety of 1C class antiarrhythmic agent (propafenone) for supraventricular arrhythmias in septic shock compared to amiodarone: protocol of a prospective randomised double-blind study.

22. Dysglycemia, Glycemic Variability, and Outcome After Cardiac Arrest and Temperature Management at 33°C and 36°C.

23. Safety, feasibility, and outcomes of induced hypothermia therapy following in-hospital cardiac arrest-evaluation of a large prospective registry*.

24. Targeted temperature management at 33°C versus 36°C after cardiac arrest.

25. Hydrogenosome-localization of arginine deiminase in Trichomonas vaginalis.

26. N-myristoyltransferase inhibitors as new leads to treat sleeping sickness.

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