778 results on '"SMITH SW"'
Search Results
52. Bidirectional ventricular tachycardia resulting from herbal aconite poisoning.
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Smith SW, Shah RR, and Herzog CA
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- 2005
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53. Unsupported 'efficacy' claims of gamma hydroxybutyrate (GHB)
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Zvosec DL and Smith SW
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- 2003
54. Response to 'The First Published Case of a Pediatric Diphenhydramine Overdose Whose Electrocardiogram Shows Terminal 40-Millisecond Frontal Plane QRS Axis Deviation'.
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Cole JB, Stellpflug SJ, Gross EA, and Smith SW
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- 2012
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55. Electrocardiographic Differentiation of Early Repolarization From Subtle Anterior ST-Segment Elevation Myocardial Infarction.
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Smith SW, Khalil A, Henry TD, Rosas M, Chang RJ, Heller K, Scharrer E, Ghorashi M, and Pearce LA
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STUDY OBJECTIVE: Anterior ST-segment elevation myocardial infarction (STEMI) can be difficult to differentiate from early repolarization on the ECG. We hypothesize that, in addition to ST-segment elevation, T-wave amplitude to R-wave amplitude ratio (T-wave amplitude(avg)/R-wave amplitude(avg)), and R-wave amplitude in leads V2 to V4, computerized corrected QT interval (QTc) and upward concavity would help to differentiate the 2. We seek to determine which ECG measurements best distinguish STEMI versus early repolarization. METHODS: This was a retrospective study of patients with anterior STEMI (2003 to 2009) and early repolarization (2003 to 2005) at 2 urban hospitals, one of which (Minneapolis Heart Institute) receives 500 STEMI patients per year. We compared the ECGs of nonobvious ('subtle') anterior STEMI with emergency department noncardiac chest pain patients with early repolarization. ST-segment elevation at the J point and 60 ms after the J point, T-wave amplitude, R-wave amplitude, QTc, upward concavity, J-wave notching, and T waves in V1 and V6 were measured. Multivariate logistic regression modeling was used to identify ECG measurements independently predictive of STEMI versus early repolarization in a derivation group and was subsequently validated in a separate group. RESULTS: Of 355 anterior STEMIs identified, 143 were nonobvious, or subtle, compared with 171 early repolarization ECGs. ST-segment elevation was greater, R-wave amplitude lower, and T-wave amplitude(avg)/R-wave amplitude(avg) higher in leads V2 to V4 with STEMI versus early repolarization. Computerized QTc was also significantly longer with STEMI versus early repolarization. T-wave amplitude did not differ significantly between the groups, such that the T-wave amplitude(avg)/R-wave amplitude(avg) difference was entirely due to the difference in R-wave amplitude. An ECG criterion based on 3 measurements (R-wave amplitude in lead V4, ST-segment elevation 60 ms after J-point in lead V3, and QTc) was derived and validated for differentiating STEMI versus early repolarization, such that if the value of the equation ([1.196 x ST-segment elevation 60 ms after the J point in lead V3 in mm]+[0.059 x QTc in ms]-[0.326 x R-wave amplitude in lead V4 in mm]) is greater than 23.4 predicted STEMI and if less than or equal to 23.4, it predicted early repolarization in both groups, with overall sensitivity, specificity, and accuracy of 86% (95% confidence interval [CI] 79, 91), 91% (95% CI 85, 95), and 88% (95% CI 84, 92), respectively, with positive likelihood ratio 9.2 (95% CI 8.5 to 10) and negative likelihood ratio 0.1 (95% CI 0.08 to 0.3). Upward concavity, upright T wave in V1 or T wave, in V1 greater than T wave in V6, and J-wave notching did not provide important information. CONCLUSION: R-wave amplitude is lower, ST-segment elevation greater, and QTc longer for subtle anterior STEMI versus early repolarization. In combination with other clinical data, this derived and validated ECG equation could be an important adjunct in the diagnosis of anterior STEMI. [ABSTRACT FROM AUTHOR]
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- 2012
56. Letter to the Editor regarding 'Outcomes in patients with chronicity of left bundle-branch block with possible acute myocardial infarction'.
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Smith SW and Dodd KW
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- 2011
57. Response to Editorial: 'Xyrem((R)) safety: The debate continues'.
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Zvosec DL and Smith SW
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- 2010
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58. Comment on 'A Bayesian Sensitivity Analysis of Out-of-Hospital 12-Lead Electrocardiograms: Implications for Regionalization of Cardiac Care'.
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Smith SW
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- 2008
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59. Tree species that ‘live slow, die older’ enhance tropical peat swamp restoration: Evidence from a systematic review
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Stuart W. Smith, Nur Estya Binte Rahman, Mark E. Harrison, Satomi Shiodera, Wim Giesen, Maija Lampela, David A. Wardle, Kwek Yan Chong, Agusti Randi, Lahiru S. Wijedasa, Pei Yun Teo, Yuti A. Fatimah, Nam Thian Teng, Joanne K. Q. Yeo, Md Jahangir Alam, Pau Brugues Sintes, Taryono Darusman, Laura L. B. Graham, Daniel Refly Katoppo, Katsumi Kojima, Kitso Kusin, Dwi Puji Lestari, Faizah Metali, Helen C. Morrogh‐Bernard, Marlide B. Nahor, Richard R. P. Napitupulu, Darmae Nasir, Tapan Kumar Nath, Reuben Nilus, Mariko Norisada, Dony Rachmanadi, Henti H. Rachmat, Bernat Ripoll Capilla, Salahuddin, Purwanto B. Santosa, Rahayu S. Sukri, Benjamin Tay, Wardah Tuah, Béatrice M. M. Wedeux, Takashi Yamanoshita, Elisa Yukie Yokoyama, Tri Wira Yuwati, Janice S. H. Lee, Smith, SW [0000-0001-9396-6610], Rahman, NEB [0000-0002-6274-1205], Harrison, ME [0000-0002-0729-8407], Shiodera, S [0000-0002-6849-8568], Giesen, W [0000-0003-2579-6706], Lampela, M [0000-0002-6635-1394], Wardle, DA [0000-0002-0476-7335], Chong, KY [0000-0003-4754-8957], Randi, A [0000-0002-4262-2604], Wijedasa, LS [0000-0001-5030-6962], Fatimah, YA [0000-0002-6807-8184], Teng, NT [0000-0003-3958-1108], Metali, F [0000-0002-2508-1535], Nath, TK [0000-0001-6436-1778], Rachmanadi, D [0000-0002-9456-5357], Rachmat, HH [0000-0003-4586-6820], Santosa, PB [0000-0002-9347-9991], Sukri, RS [0000-0002-2662-399X], Wedeux, BMM [0000-0003-1890-6778], Yuwati, TW [0000-0002-8477-0795], Lee, JSH [0000-0001-6368-6212], Apollo - University of Cambridge Repository, Asian School of the Environment, Singapore-ETH Centre, Department of Forest Sciences, and University of Helsinki
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NATURAL REGENERATION ,REFORESTATION ,Ecology ,weeding ,WOOD DENSITY ,native species ,fires ,CENTRAL KALIMANTAN ,Geography [Social sciences] ,mounding ,Fires ,FOREST RESTORATION ,oceanic Nino index ,FUNCTIONAL TRAITS ,PEATLANDS ,1181 Ecology, evolutionary biology ,GROWTH ,Drainage ,tropical peatland ,METAANALYSES ,revegetation ,drainage ,palms ,kerapah - Abstract
Funder: Arcus Foundation; Id: http://dx.doi.org/10.13039/100016681, Funder: Darwin Initiative, Funder: European Association of Zoos and Aquaria; Id: http://dx.doi.org/10.13039/501100009167, Funder: European Outdoor Conservation Association; Id: http://dx.doi.org/10.13039/501100013711, Funder: Fundacion Bioparc, Funder: Ocean Parks Conservation Foundation Hong Kong, Funder: Orangutan Land Trust, Funder: Save the Orangutan, Funder: Taronga Zoo, Funder: The Orangutan Project, Funder: Ministry of Environment & Forestry, Funder: PT Rimba Makmur Utama, Degraded tropical peatlands lack tree cover and are often subject to seasonal flooding and repeated burning. These harsh environments for tree seedlings to survive and grow are therefore challenging to revegetate. Knowledge on species performance from previous plantings represents an important evidence base to help guide future tropical peat swamp forest (TPSF) restoration efforts. We conducted a systematic review of the survival and growth of tree species planted in degraded peatlands across Southeast Asia to examine (1) species differences, (2) the impact of seedling and site treatments on survival and growth and (3) the potential use of plant functional traits to predict seedling survival and growth rates. Planted seedling monitoring data were compiled through a systematic review of journal articles, conference proceedings, reports, theses and unpublished datasets. In total, 94 study‐sites were included, spanning three decades from 1988 to 2019, and including 141 indigenous peatland tree and palm species. Accounting for variable planting numbers and monitoring durations, we analysed three measures of survival and growth: (1) final survival weighted by the number of seedlings planted, (2) half‐life, that is, duration until 50% mortality and (3) relative growth rates (RGR) corrected for initial planting height of seedlings. Average final survival was 62% and half‐life was 33 months across all species, sites and treatments. Species differed significantly in survival and half‐life. Seedling and site treatments had small effects with the strongest being higher survival of mycorrhizal fungi inoculated seedlings; lower survival, half‐life and RGR when shading seedlings; and lower RGR and higher survival when fertilising seedlings. Leaf nutrient and wood density traits predicted TPSF species survival, but not half‐life and RGR. RGR and half‐life were negatively correlated, meaning that slower growing species survived for longer. Synthesis and applications. To advance tropical peat swamp reforestation requires expanding the number and replication of species planted and testing treatments by adopting control vs. treatment experimental designs. Species selection should involve slower growing species (e.g. Lophopetalum rigidum, Alstonia spatulata, Madhuca motleyana) that survive for longer and explore screening species based on functional traits associated with nutrient acquisition, flooding tolerance and recovery from fire.
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- 2022
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60. The failing heart.
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Oh J, Chung J, Kang S, Smith SW, Niederseer D, Thaler C, Niebauer J, Korantzopoulos P, Goudevenos JA, Knaapen P, Knuuti J, van Rossum AC, Taegtmeyer H, Haddy FJ, and Neubauer S
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- 2007
61. Gamma-hydroxybutyric acid.
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Sass JO, Superti-Furga A, Ringel ER, Addolorato G, Gasbarrini G, Zvosec DL, and Smith SW
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- 2005
62. Evaluation and Treatment of Acute Facial Palsy: Opportunities for Optimization at a Single Institution.
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von Sneidern M, Saeedi A, Abend AM, Wiener E, Smith SW, and Eytan DF
- Abstract
Introduction: Most patients with acute facial palsy initially present to emergency departments (EDs), where clinical practice guidelines (CPGs) recommend steroids, eye care, and follow-up with facial nerve specialists. Objective: To evaluate adherence to the American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS) Bell's palsy (BP) CPGs within EDs at a single academic institution. Method : We conducted a retrospective review of all patients diagnosed with acute facial palsy in the EDs of an academic tertiary care center between June 1, 2021, and June 1, 2022. Results: A total of 270 patients met inclusion criteria; most were male ( n = 150, 55.9%), diagnosed with BP ( n = 243, 90.0%), and presented to community-based emergency rooms ( n = 170, 62.96). Although most patients received steroid treatment ( n = 243, 90.0%), only 61.5% ( n = 166) received the AAO-HNS-recommended course. Older patients and those who received steroids were more likely to receive imaging ( p < 0.001 , p = 0.03). Treatment with the AAO-HNS-recommended steroid regimen was associated with a higher likelihood of receiving laboratory evaluation ( p = 0.02). Providers often advised follow-up; however, only 12.2% of patients were discharged with an electronic referral order. Conclusion : There are opportunities to standardize the treatment of patients in the ED presenting with acute facial palsy according to AAO-HNS CPGs.
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- 2024
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63. Virtual discharge counseling: An assessment of scalability of a novel patient educational process across a multi-site urban emergency department.
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Leybov V, Ross J, Grabinski Z, Smith SW, Wang Y, Wittman IG, Caspers CG, Tse AB, and Conroy N
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Background: Inadequate counseling at patient discharge from the emergency department can lead to adverse patient outcomes. Virtual discharge counseling can address gaps in discharge counseling and improve patients' understanding of instructions., Methods: A previously established virtual discharge counseling program was scaled across three emergency departments and expanded to 13 diagnoses. Utilizing a standardized protocol and script, counselors performed virtual discharge counseling via a remote, secure teleconference platform in the patients' preferred language., Results: Virtual discharge counseling was performed with 166 patients. COVID-19, back pain, and headache were the most frequent diagnoses. The median counseling time was 14 min. Median counseling time for English was 11 min, versus 20 min for other languages ( p < 0.001). Counseling times were the longest for COVID-19 and diabetes (18 min for each)., Conclusion: We demonstrate the scalability of a virtual discharge counseling program. Our findings can assist in targeting virtual discharge counseling resources for limited English-proficiency patients and specific diagnoses that require longer counseling times., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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64. Love your wet grass! Dry season grazing reserves show highest grass regrowth in communal semi-arid rangelands of Tanzania.
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Baumgartner SA, Smith SW, Bartzke GS, Laizar O, Ploechl JF, Michler LM, Naro EM, and Treydte AC
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- Tanzania, Animals, Biomass, Grassland, Ecosystem, Rain, Climate Change, Conservation of Natural Resources, Seasons, Poaceae growth & development, Herbivory
- Abstract
Land management by seasonal migratory herding, traditionally implemented by pastoralists, has allowed semi-arid rangeland ecosystems to remain productive and resilient to highly erratic, seasonal rainfall patterns. Changing pastoralist practices and rainfall patterns due to climate change have the potential to negatively influence the resilience of rangelands. To test the impact of different communal rangeland practices and increasing frequency of disturbance on the rangelands' vegetation, we established a clipping experiment in three rangeland management types: rainy season rangeland, dry season rangeland and seasonal exclosures, in the Maasai Steppe, northern Tanzania. Across these rangeland management types, we tested two clipping frequencies monthly vs. once per growing period and either fenced or open to grazing (herbivory) over two consecutive growing periods. We found that rainy season rangeland exhibited lowest regrowth rates and highest proportion of bare ground across herbivory, clipping frequency and growing period. When rainfall was low, seasonal exclosures showed lowest proportion of bare ground across herbivory and clipping frequency and plots that were seasonally clipped and excluded herbivores generated significantly more grass biomass, higher grass regrowth rates and lowest proportion of bare ground compared to all other treatments. Excluding herbivores had little impact on the vegetation biomass and cover but had a positive impact on grass regrowth rates when rainfall was high. Seasonal clipping allowed for lower proportion of bare ground, and in most cases higher regrowth rates and higher biomass compared to monthly clipping. We conclude that traditional seasonal migratory herding is a relevant concept to sustain rangeland productivity and resilience under increasing intensity of disturbance if grazing pressure on rainy season rangelands is adapted to rainfall conditions and sufficient resting time after heavy defoliation is granted. Dry season grazing (including rainy season resting) proved to be the most sustainable concept to maintain regrowth and control erosion., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Baumgartner 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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65. No false negative paradox in STEMI-NSTEMI diagnosis.
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de Alencar JN, Meyers HP, McLaren JTT, and Smith SW
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- Humans, False Negative Reactions, Electrocardiography, Predictive Value of Tests, ST Elevation Myocardial Infarction diagnosis, ST Elevation Myocardial Infarction therapy, Non-ST Elevated Myocardial Infarction diagnosis, Non-ST Elevated Myocardial Infarction therapy
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Competing Interests: Competing interests: None declared.
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- 2024
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66. From ST-Segment Elevation MI to Occlusion MI: The New Paradigm Shift in Acute Myocardial Infarction.
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McLaren J, de Alencar JN, Aslanger EK, Meyers HP, and Smith SW
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A generation ago thrombolytic therapy led to a paradigm shift in myocardial infarction (MI), from Q-wave/non-Q-wave to ST-segment elevation MI (STEMI) vs non-STEMI. Using STE on the electrocardiogram (ECG) as a surrogate marker for acute coronary occlusion (ACO) allowed for rapid diagnosis and treatment. But the vast research catalyzed by the STEMI paradigm has revealed increasing anomalies: 25% of "non-STEMI" have ACO with delayed reperfusion and higher mortality. Studying these limitations has given rise to the occlusion MI (OMI) paradigm, based on the presence or absence of ACO in the patient rather than STE on ECG. The OMI paradigm shift harnesses advanced ECG interpretation aided by artificial intelligence, complementary bedside echocardiography and advanced imaging, and clinical signs of refractory ischemia, and offers the next opportunity to transform emergency cardiology and improve patient care. This State-of-the-Art Review examines the paradigm shifts from Q wave to STEMI to OMI., Competing Interests: Dr Meyers has been a paid consultant to Rapid AI and Baxter/Veritas and holds stocks from Powerful Medical. Dr Smith has received personal fees from Cardiologs, HEARTBEAM, Rapid AI, and Baxter/Veritas; and holds stocks from Powerful Medical and Pulse AI. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose., (© 2024 The Authors.)
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- 2024
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67. Piloting a novel medical student virtual discharge counseling process in the time of the COVID-19 pandemic.
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Leybov V, Ross J, Smith SW, Ciardiello A, Maheshwari S, Caspers C, Wittman I, Kuhner C, Stark S, and Conroy N
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- Humans, Female, Male, Pilot Projects, Adult, SARS-CoV-2, Emergency Service, Hospital organization & administration, Middle Aged, Telemedicine, Counseling methods, Pandemics, Aged, Distance Counseling methods, COVID-19 epidemiology, Students, Medical psychology, Patient Discharge
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Background: During the COVID-19 pandemic, we identified a gap in adequate discharge counseling for COVID-19 patients in the Emergency Department. This was due to high patient volumes and lack of patient education regarding a novel disease. Medical students were also restricted from clinical areas due to safety concerns, compromising their clinical experience. We piloted a novel program in which medical students served as virtual discharge counselors for COVID-19 patients via teleconference. We aimed to demonstrate an impact on patient care by examining the patient bounce back rate as well as assessing medical student education and experience., Methods: This program was piloted in a tertiary care Emergency Department. Medical student volunteers served as virtual discharge counselors. Students were trained in discharge counseling with a standardized protocol and a discharge script. Eligible patients for virtual discharge counseling were 18 years old or greater with a diagnosis of confirmed or suspected COVID-19 and no impediment precluding them from participating in a telemedicine encounter. Counseling was provided via secure teleconference in the patient's preferred language. Counseling included diagnosis, supportive care with medication dosing, quarantine instructions, return precautions, follow up, and time to ask questions. Duration of counseling was recorded and medical students were anonymously surveyed regarding their experience., Results: Over an 18-week period, 45 patients were counseled for a median of 20 min. The 72-hr ED revisit rate was 0%, versus 4.2% in similarly-matched, not counseled COVID-19 patients. 90% of medical students believed this project increased their confidence when speaking with patients while 80% indicated this was their first telemedicine experience., Conclusion: Our pilot discharge program provided patients with an extensive discharge counseling experience that would not otherwise be possible in an urban ED setting and demonstrated benefit to patient care. Medical students received a safe clinical experience that improved their communication skills., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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68. Artificial Intelligence Driven Prehospital ECG Interpretation for the Reduction of False Positive Emergent Cardiac Catheterization Lab Activations: A Retrospective Cohort Study.
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Baker PO, Karim SR, Smith SW, Meyers HP, Robinson AE, Ibtida I, Karim RM, Keller GA, Royce KA, and Puskarich MA
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Objectives: Data suggest patients suffering acute coronary occlusion myocardial infarction (OMI) benefit from prompt primary percutaneous intervention (PPCI). Many emergency medical services (EMS) activate catheterization labs to reduce time to PPCI, but suffer a high burden of inappropriate activations. Artificial intelligence (AI) algorithms show promise to improve electrocardiogram (ECG) interpretation. The primary objective was to evaluate the potential of AI to reduce false positive activations without missing OMI., Methods: Electrocardiograms were categorized by (1) STEMI criteria, (2) ECG integrated device software and (3) a proprietary AI algorithm (Queen of Hearts (QOH), Powerful Medical). If multiple ECGs were obtained and any one tracing was positive for a given method, that diagnostic method was considered positive. The primary outcome was OMI defined as an angiographic culprit lesion with either TIMI 0-2 flow; or TIMI 3 flow with either peak high sensitivity troponin- I > 5000 ng/L or new wall motion abnormality. The primary analysis was per-patient proportion of false positives., Results: A total of 140 patients were screened and 117 met criteria. Of these, 48 met the primary outcome criteria of OMI. There were 80 positives by STEMI criteria, 88 by device algorithm, and 77 by AI software. All approaches reduced false positives, 27% for STEMI, 22% for device software, and 34% for AI ( p < 0.01 for all). The reduction in false positives did not significantly differ between STEMI criteria and AI software ( p = 0.19) but STEMI criteria missed 6 (5%) OMIs, while AI missed none ( p = 0.01)., Conclusions: In this single-center retrospective study, an AI-driven algorithm reduced false positive diagnoses of OMI compared to EMS clinician gestalt. Compared to AI (which missed no OMI), STEMI criteria also reduced false positives but missed 6 true OMI. External validation of these findings in prospective cohorts is indicated.
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- 2024
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69. OMI/NOMI: Time for a New Classification of Acute Myocardial Infarction.
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Kola M, Shuka N, Meyers HP, Zaimi Petrela E, and Smith SW
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Forty percent of patients with acute coronary occlusion myocardial infarction (OMI) do not present with STEMI criteria, which delays their treatment and increases morbidity and mortality. The need to identify these patients promptly is crucial, and this sets the stage for the proposed reclassification. Many of these patients can be identified by other ECG and clinical features. Background/Objectives : We sought to evaluate cases of STEMI and NSTEMI that result in OMI. Additionally, we focused on the consequences of delayed revascularization in NSTEMI patients with acute coronary occlusion (NSTEMI-OMI). Methods : The study is a retrospective analysis conducted on 334 patients who underwent coronary angiography for acute coronary syndrome at UHC "Mother Teresa", Tirana, Albania, during January-May 2023. "OMI was defined as an acute culprit lesion with TIMI 0-2 flow, or an acute culprit lesion with TIMI 3 flow intervened upon and with highly elevated troponin (cTnI > 10.0 ng/mL, hs-cTnI > 5000 ng/L)". The presence or absence of STEMI criteria were determined in the final diagnosis written on the chart by a cardiologist using the third universal definition of MI. Ejection fraction (EF), total ischemia time, length of stay, and complications were compared between groups. Mechanical complications include acute ventricular failure, cardiogenic shock, rupture of the interventricular septum, rupture of the free wall, rupture of the papillary muscle, and pericarditis. Electrical complications include ventricular arrhythmias, supraventricular arrhythmias, and atrioventricular and interventricular blocks. Results : There were 334 patients included, 98 (29.3%) of whom were NSTEMI-OMI patients. Ninety-six patients (40%) of OMI patients did not fulfill the STEMI criteria. Only 11 patients (11%) of STEMI(-)OMI had PCI performed within the first 12 h vs. 76 patients (77%) with STEMI(+)OMI, p < 0.001. There was no difference in the percent of patients requiring PCI between the STEMI(+)OMI 98 patients (93%) and STEMI(-)OMI 87 patients (89%) ( p = 0.496). The overall in-hospital mortality was 19 patients (5.7%), with subgroup mortality of 14 patients (4.2%) with STEMI(+)OMI, 2 patients (0.6%) with STEMI(+) NOMI, and 3 patients (0.9%) with STEMI(-)OMI, 0% STEMI(-)NOMI, ( p = 0.013). Patients with mechanical complications included 67 patients (46.8%) with STEMI(+)OMI and 45 patients (46.4%) with STEMI(-)OMI. In addition, 26 patients (18.5%) with STEMI(+)OMI and 13 patients (13.1%) with STEMI(-)OMI developed electrical complications. Conclusions : STEMI(-)OMI patients had significant delays in catheterization, yet had angiographic findings, rates of PCI, and complications similar to STEMI(+)OMI. These data add further support to refocusing the paradigm of acute MI to improve recognition and rapid reperfusion of all OMIs, rather than only those with STEMI criteria.
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- 2024
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70. Synthesized alternative reinforcement and resurgence.
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Smith SW, Arroyo Antúnez BE, DeBartelo J, Sullivan WE, Roane HS, and Craig AR
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- Animals, Rats, Male, Rats, Sprague-Dawley, Choice Behavior, Reinforcement, Psychology, Extinction, Psychological, Reinforcement Schedule, Conditioning, Operant
- Abstract
In treatments based on differential reinforcement of alternative behavior, applied researchers and clinicians often provide multiple, qualitatively different reinforcers (i.e., synthesized reinforcement) rather than a single reinforcer (i.e., isolated reinforcement) contingent on alternative behavior. Some research shows that providing synthesized reinforcement for alternative responses within such treatments produces more rapid and complete suppression of target behavior; however, there is limited research evaluating the durability of these effects during treatment disruptions. Conceptual explanations of resurgence (e.g., resurgence as choice, context theory) suggest that treatments that include synthesized alternative reinforcement may lead to more resurgence of target behavior when alternative reinforcement is disrupted relative to treatments using isolated reinforcement. We evaluated this hypothesis within a three-phase resurgence evaluation. We exposed rats to isolated or synthesized reinforcement for alternative responding in the second phase, and we exposed rats to extinction in the third phase. Synthesized alternative reinforcement produced more rapid and complete suppression of target behavior than did isolated reinforcement in the second phase; however, exposure to extinction following synthesized reinforcement produced more resurgence. We discuss these results in terms of their implications for applied research and their support for current conceptual explanations for resurgence., (© 2024 Society for the Experimental Analysis of Behavior.)
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- 2024
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71. Point-of-care high-sensitivity cardiac troponin in suspected acute myocardial infarction assessed at baseline and 2 h.
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Cullen L, Greenslade J, Parsonage W, Stephensen L, Smith SW, Sandoval Y, Ranasinghe I, Gaikwad N, Khorramshahi Bayat M, Mahmoodi E, Schulz K, Than M, and Apple FS
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- Humans, Male, Female, Prospective Studies, Aged, Middle Aged, Point-of-Care Systems, Biomarkers blood, Risk Assessment methods, Sensitivity and Specificity, Point-of-Care Testing, Myocardial Infarction diagnosis, Myocardial Infarction blood, Troponin I blood, Algorithms
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Background and Aims: Strategies to assess patients with suspected acute myocardial infarction (AMI) using a point-of-care (POC) high-sensitivity cardiac troponin I (hs-cTnI) assay may expedite emergency care. A 2-h POC hs-cTnI strategy for emergency patients with suspected AMI was derived and validated., Methods: In two international, multi-centre, prospective, observational studies of adult emergency patients (1486 derivation cohort and 1796 validation cohort) with suspected AMI, hs-cTnI (Siemens Atellica® VTLi) was measured at admission and 2 h later. Adjudicated final diagnoses utilized the hs-cTn assay in clinical use. A risk stratification algorithm was derived and validated. The primary diagnostic outcome was index AMI (Types 1 and 2). The primary safety outcome was 30-day major adverse cardiac events incorporating AMI and cardiac death., Results: Overall, 81 (5.5%) and 88 (4.9%) patients in the derivation and validation cohorts, respectively, had AMI. The 2-h algorithm defined 66.1% as low risk with a sensitivity of 98.8% [95% confidence interval (CI) 89.3%-99.9%] and a negative predictive value of 99.9 (95% CI 99.2%-100%) for index AMI in the derivation cohort. In the validation cohort, 53.3% were low risk with a sensitivity of 98.9% (95% CI 92.4%-99.8%) and a negative predictive value of 99.9% (95% CI 99.3%-100%) for index AMI. The high-risk metrics identified 5.4% of patients with a specificity of 98.5% (95% CI 96.6%-99.4%) and a positive predictive value of 74.5% (95% CI 62.7%-83.6%) for index AMI., Conclusions: A 2-h algorithm using a POC hs-cTnI concentration enables safe and efficient risk assessment of patients with suspected AMI. The short turnaround time of POC testing may support significant efficiencies in the management of the large proportion of emergency patients with suspected AMI., (© The Author(s) 2024. Published by Oxford University Press on behalf of the European Society of Cardiology. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)
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- 2024
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72. ST Elevation is a poor surrogate for acute coronary occlusion. Let's Replace STEMI with Occlusion MI (OMI)!!
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Smith SW and Meyers HP
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- Humans, Electrocardiography, ST Elevation Myocardial Infarction therapy, ST Elevation Myocardial Infarction diagnosis, ST Elevation Myocardial Infarction surgery, Coronary Occlusion surgery, Coronary Occlusion diagnosis
- Abstract
Competing Interests: Declaration of Competing Interest The authors declare that they own stock in Powerful medical.
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- 2024
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73. Beyond STEMI-NSTEMI Paradigm: Dante Pazzanese's Proposal for Occlusion Myocardial Infarction Diagnosis.
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Alencar JN, Feres F, Marchi MFN, Franchini KG, Scheffer MK, Felicioni SP, Costa ACM, Fernandes RC, Ramadan HR, Meyers P, and Smith SW
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- Humans, Non-ST Elevated Myocardial Infarction diagnosis, Non-ST Elevated Myocardial Infarction therapy, Coronary Occlusion diagnosis, Coronary Occlusion therapy, Chest Pain etiology, ST Elevation Myocardial Infarction diagnosis, ST Elevation Myocardial Infarction therapy, Electrocardiography
- Abstract
Although the existing framework for classifying acute myocardial infarction (AMI) into STEMI and NSTEMI has been beneficial, it is now considered to be falling short in addressing the complexity of acute coronary syndromes. The study aims to scrutinize the current STEMI-NSTEMI paradigm and advocate for a more nuanced framework, termed as occlusion myocardial infarction (OMI) and non-occlusion myocardial infarction (NOMI), for a more accurate diagnosis and management of AMI. A comprehensive analysis of existing medical literature was conducted, with a focus on the limitations of the STEMI-NSTEMI model. The study also outlines a new diagnostic approach for patients presenting with chest pain in emergency settings. The traditional STEMI-NSTEMI model falls short in diagnostic precision and effective treatment, especially in identifying acute coronary artery occlusions. The OMI-NOMI framework offers a more anatomically and physiologically accurate model, backed by a wealth of clinical research and expert opinion. It underscores the need for quick ECG assessments and immediate reperfusion therapies for suspected OMI cases, aiming to improve patient outcomes. The OMI-NOMI framework offers a new avenue for future research and clinical application. It advocates for a more comprehensive understanding of the underlying mechanisms of acute coronary syndromes, leading to individualized treatment plans. This novel approach is expected to ignite further scholarly debate and research, particularly in the Brazilian cardiology sector, with the goal of enhancing diagnostic accuracy and treatment effectiveness in AMI patients.
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- 2024
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74. Emergency Medicine Postgraduate Year, Laryngoscopic View, and Endotracheal Tube Placement Success.
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Nikolla DA, Offenbacher J, April MD, Smith SW, Battista A, Ducharme SA, Carlson JN, and Brown CA 3rd
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- Humans, Retrospective Studies, Female, Male, Middle Aged, Adult, Intubation, Intratracheal methods, Laryngoscopy methods, Emergency Medicine education, Internship and Residency, Clinical Competence
- Abstract
Study Objective: Prior work has found first-attempt success improves with emergency medicine (EM) postgraduate year (PGY). However, the association between PGY and laryngoscopic view - a key step in successful intubation - is unknown. We examined the relationship among PGY, laryngoscopic view (ie, Cormack-Lehane view), and first-attempt success., Methods: We performed a retrospective analysis of the National Emergency Airway Registry, including adult intubations by EM PGY 1 to 4 resident physicians. We used inverse probability weighting with propensity scores to balance confounders. We used weighted regression and model comparison to estimate adjusted odds ratios (aOR) with 95% confidence intervals (CIs) between PGY and Cormack-Lehane view, tested the interaction between PGY and Cormack-Lehane view on first-attempt success, and examined the effect modification of Cormack-Lehane view on the association between PGY and first-attempt success., Results: After exclusions, we included 15,453 first attempts. Compared to PGY 1, the aORs for a higher Cormack-Lehane grade did not differ from PGY 2 (1.01; 95% CI 0.49 to 2.07), PGY 3 (0.92; 0.31 to 2.73), or PGY 4 (0.80; 0.31 to 2.04) groups. The interaction between PGY and Cormack-Lehane view was significant (P-interaction<0.001). In patients with Cormack-Lehane grade 3 or 4, the aORs for first-attempt success were higher for PGY 2 (1.80; 95% CI 1.17 to 2.77), PGY 3 (2.96; 1.66 to 5.27) and PGY 4 (3.10; 1.60 to 6.00) groups relative to PGY 1., Conclusion: Compared with PGY 1, PGY 2, 3, and 4 resident physicians obtained similar Cormack-Lehane views but had higher first-attempt success when obtaining a grade 3 or 4 view., (Copyright © 2024 American College of Emergency Physicians. Published by Elsevier Inc. All rights reserved.)
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- 2024
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75. Evaluation of a Structured Review Process for Emergency Department Return Visits with Admission.
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Grabinski Z, Woo KM, Akindutire O, Dahn C, Nash L, Leybell I, Wang Y, Bayer D, Swartz J, Jamin C, and Smith SW
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- Humans, Quality Assurance, Health Care, Male, Female, Middle Aged, Reproducibility of Results, Adult, Patient Admission statistics & numerical data, Patient Admission standards, Algorithms, Emergency Service, Hospital statistics & numerical data, Emergency Service, Hospital standards, Patient Readmission statistics & numerical data
- Abstract
Background: Review of emergency department (ED) revisits with admission allows the identification of improvement opportunities. Applying a health equity lens to revisits may highlight potential disparities in care transitions. Universal definitions or practicable frameworks for these assessments are lacking. The authors aimed to develop a structured methodology for this quality assurance (QA) process, with a layered equity analysis., Methods: The authors developed a classification instrument to identify potentially preventable 72-hour returns with admission (PPRA-72), accounting for directed, unrelated, unanticipated, or disease progression returns. A second review team assessed the instrument reliability. A self-reported race/ethnicity (R/E) and language algorithm was developed to minimize uncategorizable data. Disposition distribution, return rates, and PPRA-72 classifications were analyzed for disparities using Pearson chi-square and Fisher's exact tests., Results: The PPRA-72 rate was 4.8% for 2022 ED return visits requiring admission. Review teams achieved 93% agreement (κ = 0.51) for the binary determination of PPRA-72 vs. nonpreventable returns. There were significant differences between R/E and language in ED dispositions (p < 0.001), with more frequent admissions for the R/E White at the index visit and Other at the 72-hour return visit. Rates of return visits within 72 hours differed significantly by R/E (p < 0.001) but not by language (p = 0.156), with the R/E Black most frequent to have a 72-hour return. There were no differences between R/E (p = 0.446) or language (p = 0.248) in PPRA-72 rates. The initiative led to system improvements through informatics optimizations, triage protocols, provider feedback, and education., Conclusion: The authors developed a review methodology for identifying improvement opportunities across ED 72-hour returns. This QA process enabled the identification of areas of disparity, with the continuous aim to develop next steps in ensuring health equity in care transitions., (Copyright © 2024 The Joint Commission. Published by Elsevier Inc. All rights reserved.)
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- 2024
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76. First-Attempt Success Between Anatomically and Physiologically Difficult Airways in the National Emergency Airway Registry.
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Nikolla DA, Offenbacher J, Smith SW, Genes NG, Herrera OA, Carlson JN, and Brown CA 3rd
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- Humans, Male, Female, Middle Aged, Retrospective Studies, Adult, Aged, Emergency Service, Hospital, Airway Management methods, Treatment Outcome, United States, Registries, Intubation, Intratracheal methods, Laryngoscopy
- Abstract
Background: In the emergency department (ED), certain anatomical and physiological airway characteristics may predispose patients to tracheal intubation complications and poor outcomes. We hypothesized that both anatomically difficult airways (ADAs) and physiologically difficult airways (PDAs) would have lower first-attempt success than airways with neither in a cohort of ED intubations., Methods: We performed a retrospective, observational study using the National Emergency Airway Registry (NEAR) to examine the association between anticipated difficult airways (ADA, PDA, and combined ADA and PDA) vs those without difficult airway findings (neither ADA nor PDA) with first-attempt success. We included adult (age ≥14 years) ED intubations performed with sedation and paralysis from January 1, 2016 to December 31, 2018 using either direct or video laryngoscopy. We excluded patients in cardiac arrest. The primary outcome was first-attempt success, while secondary outcomes included first-attempt success without adverse events, peri-intubation cardiac arrest, and the total number of airway attempts. Mixed-effects models were used to obtain adjusted estimates and confidence intervals (CIs) for each outcome. Fixed effects included the presence of a difficult airway type (independent variable) and covariates including laryngoscopy device type, intubator postgraduate year, trauma indication, and patient age as well as the site as a random effect. Multiplicative interaction between ADAs and PDAs was assessed using the likelihood ratio (LR) test., Results: Of the 19,071 subjects intubated during the study period, 13,938 were included in the study. Compared to those without difficult airway findings (neither ADA nor PDA), the adjusted odds ratios (aORs) for first-attempt success were 0.53 (95% CI, 0.40-0.68) for ADAs alone, 0.96 (0.68-1.36) for PDAs alone, and 0.44 (0.34-0.56) for both. The aORs for first-attempt success without adverse events were 0.72 (95% CI, 0.59-0.89) for ADAs alone, 0.79 (0.62-1.01) for PDAs alone, and 0.44 (0.37-0.54) for both. There was no evidence that the interaction between ADAs and PDAs for first-attempt success with or without adverse events was different from additive (ie, not synergistic/multiplicative or antagonistic)., Conclusions: Compared to no difficult airway characteristics, ADAs were inversely associated with first-attempt success, while PDAs were not. Both ADAs and PDAs, as well as their interaction, were inversely associated with first-attempt success without adverse events., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2024 International Anesthesia Research Society.)
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- 2024
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77. A Prospective Open-Label Study for Treatment of Infraorbital Hollows Using a Volumizing Hyaluronic Acid Filler.
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Smith SW, Massey BL, Hall MB, and Buckingham ED
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- Humans, Prospective Studies, Female, Middle Aged, Adult, Male, Treatment Outcome, Orbit, Hyaluronic Acid therapeutic use, Hyaluronic Acid adverse effects, Hyaluronic Acid administration & dosage, Patient Satisfaction, Dermal Fillers adverse effects, Dermal Fillers administration & dosage, Cosmetic Techniques
- Abstract
This study aimed to prospectively evaluate the effectiveness, patient satisfaction, and early adverse events of using the hyaluronic acid filler VYC-20L for the treatment of infraorbital hollowing. A total of 21 participants underwent injection of VYC-20L. FACE-Q satisfaction surveys before and after treatment along with early adverse events surveys were conducted. Pre- and posttreatment photos were graded, and the Allergan Infraorbital Hollows Scale was used to assess the difference in infraorbital hollowing. The results showed infraorbital hollowing improvement with VYC-20L was significant ( p < 0.001). FACE-Q Satisfaction with Eyes scores on average were 27 points higher after treatment ( p < 0.001). The mean FACE-Q Satisfaction with Decision score was 74.1%. The most common short-term adverse symptoms were tenderness (67%), swelling (62%), and bruising (52%). This study concludes that VYC-20L is an effective nonsurgical treatment option for infraorbital hollowing with high patient satisfaction., Competing Interests: None declared., (Thieme. All rights reserved.)
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- 2024
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78. Abstinence as Choice: Exploring Voluntary Abstinence from Alcohol Self-Administration Using the Resurgence-as-Choice Framework.
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Craig AR, Smith SW, Nall RW, Sullivan WE, and Roane HS
- Abstract
Resurgence is an increase in the rate of a previously suppressed behavior that occurs when an alternative source of reinforcement is made worse in some way. The Resurgence as Choice model offers a quantitative approach to understanding resurgence that may provide important insights into the variables that affect this form of relapse in the natural environment. Bringing this model to bear on relapse following reinforcement-based interventions for alcohol and other substance use disorders, however, may not be straightforward. Laboratory work on which the Resurgence as Choice model is based has almost exclusively focused on resurgence following extinction of target behavior, but abstinence from alcohol during intervention is often voluntary: Patients may drink alcohol and forfeit therapeutic reinforcers at any time. In this article, we first will review recent data from our group that demonstrate a method for studying resurgence following voluntary abstinence from alcohol seeking in rats. In a previous experiment, we reduced rats' alcohol-maintained lever pressing to low levels without placing it on extinction by arranging nondrug differential reinforcement of other behavior. Further, when we suspended nondrug reinforcement, resurgence of lever pressing occurred. Next, we will explore methods for modeling these outcomes using the Resurgence-as-Choice framework. We conclude that the data under consideration may not be sufficient to discriminate between candidate models of resurgence following voluntary abstinence and point to areas for future empirical and theoretical development. This work may provide a stronger bridge between preclinical and conceptual work on resurgence and clinical treatments for alcohol use disorder., Competing Interests: Conflicts of InterestThe authors declare no competing interests., (© Association for Behavior Analysis International 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.)
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- 2024
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79. Reading tea leaves worldwide: Decoupled drivers of initial litter decomposition mass-loss rate and stabilization.
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Sarneel JM, Hefting MM, Sandén T, van den Hoogen J, Routh D, Adhikari BS, Alatalo JM, Aleksanyan A, Althuizen IHJ, Alsafran MHSA, Atkins JW, Augusto L, Aurela M, Azarov AV, Barrio IC, Beier C, Bejarano MD, Benham SE, Berg B, Bezler NV, Björnsdóttir K, Bolinder MA, Carbognani M, Cazzolla Gatti R, Chelli S, Chistotin MV, Christiansen CT, Courtois P, Crowther TW, Dechoum MS, Djukic I, Duddigan S, Egerton-Warburton LM, Fanin N, Fantappiè M, Fares S, Fernandes GW, Filippova NV, Fliessbach A, Fuentes D, Godoy R, Grünwald T, Guzmán G, Hawes JE, He Y, Hero JM, Hess LL, Hogendoorn K, Høye TT, Jans WWP, Jónsdóttir IS, Keller S, Kepfer-Rojas S, Kuz'menko NN, Larsen KS, Laudon H, Lembrechts JJ, Li J, Limousin JM, Lukin SM, Marques R, Marín C, McDaniel MD, Meek Q, Merzlaya GE, Michelsen A, Montagnani L, Mueller P, Murugan R, Myers-Smith IH, Nolte S, Ochoa-Hueso R, Okafor BN, Okorkov VV, Onipchenko VG, Orozco MC, Parkhurst T, Peres CA, Petit Bon M, Petraglia A, Pingel M, Rebmann C, Scheffers BR, Schmidt I, Scholes MC, Sheffer E, Shevtsova LK, Smith SW, Sofo A, Stevenson PR, Strouhalová B, Sundsdal A, Sühs RB, Tamene G, Thomas HJD, Tolunay D, Tomaselli M, Tresch S, Tucker DL, Ulyshen MD, Valdecantos A, Vandvik V, Vanguelova EI, Verheyen K, Wang X, Yahdjian L, Yumashev XS, and Keuskamp JA
- Subjects
- Carbon Cycle, Carbon metabolism, Plant Leaves
- Abstract
The breakdown of plant material fuels soil functioning and biodiversity. Currently, process understanding of global decomposition patterns and the drivers of such patterns are hampered by the lack of coherent large-scale datasets. We buried 36,000 individual litterbags (tea bags) worldwide and found an overall negative correlation between initial mass-loss rates and stabilization factors of plant-derived carbon, using the Tea Bag Index (TBI). The stabilization factor quantifies the degree to which easy-to-degrade components accumulate during early-stage decomposition (e.g. by environmental limitations). However, agriculture and an interaction between moisture and temperature led to a decoupling between initial mass-loss rates and stabilization, notably in colder locations. Using TBI improved mass-loss estimates of natural litter compared to models that ignored stabilization. Ignoring the transformation of dead plant material to more recalcitrant substances during early-stage decomposition, and the environmental control of this transformation, could overestimate carbon losses during early decomposition in carbon cycle models., (© 2024 The Authors. Ecology Letters published by John Wiley & Sons Ltd.)
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- 2024
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80. Profound Alkalosis and Prolonged QT Interval Due to Inappropriate Gastrostomy Tube Loss: A Case Report.
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Turner F, Friedman B, Pendell Meyers H, and Smith SW
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Introduction: Severe metabolic alkaloses are relatively rare but can carry a high mortality rate. Treatment involves supportive care and treatment of underlying causes., Case Report: A 55-year-old male dependent on a gastrojejunostomy tube presented to the emergency department for altered mental status. The patient had metabolic alkalosis, electrolyte abnormalities, and prolonged QT interval on electrocardiogram. Examination and history revealed that chronic drainage of gastric fluid via malfunctioning a gastrojejunostomy tube resulted in profound alkalosis. The patient recovered with supportive care, electrolyte repletion, and gastrojejunostomy tube replacement., Conclusion: This case highlights the importance of gastrointestinal acid-base pathophysiology., Competing Interests: Conflicts of Interest: By the CPC-EM article submission agreement, all authors are required to disclose all affiliations, funding sources and financial or management relationships that could be perceived as potential sources of bias. The authors disclosed none.
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- 2024
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81. Resurgence of ethanol seeking following voluntary abstinence produced by nondrug differential reinforcement of other behavior.
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Craig AR, Agnew CN, Derrenbacker KE, Antúnez BA, Sullivan WE, Smith SW, DeBartelo J, and Roane HS
- Subjects
- Animals, Rats, Male, Reinforcement Schedule, Self Administration psychology, Recurrence, Rats, Long-Evans, Reinforcement, Psychology, Conditioning, Operant, Ethanol, Drug-Seeking Behavior, Extinction, Psychological
- Abstract
Resurgence refers to the relapse of a target behavior following the worsening of a source of alternative reinforcement that was made available during response elimination. Most laboratory analyses of resurgence have used a combination of extinction and alternative reinforcement to reduce target behavior. In contingency-management treatments for alcohol use disorder, however, alcohol use is not placed on extinction. Instead, participants voluntarily abstain from alcohol use to access nondrug alternative reinforcers. Inasmuch, additional laboratory research on resurgence following voluntary abstinence is warranted. The present experiment evaluated resurgence of rats' ethanol seeking following voluntary abstinence produced by differential reinforcement of other behavior (DRO). Lever pressing produced ethanol reinforcers during baseline phases. During DRO phases, lever pressing continued to produce ethanol and food reinforcers were delivered according to resetting DRO schedules. Ethanol and food reinforcers were suspended during resurgence test phases to evaluate resurgence following voluntary abstinence. Lever pressing was elevated during baseline phases and occurred at near-zero rates during DRO phases. During the resurgence test phases, lever pressing increased, despite that it no longer produced ethanol. The procedure introduced here may help researchers better understand the variables that affect voluntary abstinence from ethanol seeking and resurgence following voluntary abstinence., (© 2024 Society for the Experimental Analysis of Behavior.)
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- 2024
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82. Response to: "Eliminating the benzos: A benzodiazepine-sparing approach to preventing and treating alcohol withdrawal syndrome".
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Klein SS, Fine JS, and Smith SW
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- Humans, Ethanol administration & dosage, Alcoholism complications, Substance Withdrawal Syndrome prevention & control, Substance Withdrawal Syndrome drug therapy, Benzodiazepines therapeutic use
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- 2024
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83. EDUCATE: An international, randomized controlled trial for teaching electrocardiography.
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Kashou AH, Noseworthy PA, Beckman TJ, Anavekar NS, Cullen MW, Angstman KB, Sandefur BJ, Shapiro BP, Wiley BW, Kates AM, Sadhu J, Thakker P, Huneycutt D, Braisted A, Smith SW, Baranchuk A, Grauer K, O'Brien K, Kaul V, Gambhir HS, Knohl SJ, Restrepo D, and May AM
- Subjects
- Humans, Prospective Studies, Randomized Controlled Trials as Topic, Electrocardiography, Clinical Competence
- Abstract
Introduction: Despite the critical role of electrocardiograms (ECGs) in patient care, evident gaps exist in ECG interpretation competency among healthcare professionals across various medical disciplines and training levels. Currently, no practical, evidence-based, and easily accessible ECG learning solution is available for healthcare professionals. The aim of this study was to assess the effectiveness of web-based, learner-directed interventions in improving ECG interpretation skills in a diverse group of healthcare professionals., Methods: In an international, prospective, randomized controlled trial, 1206 healthcare professionals from various disciplines and training levels were enrolled. They underwent a pre-intervention test featuring 30 12-lead ECGs with common urgent and non-urgent findings. Participants were randomly assigned to four groups: (i) practice ECG interpretation question bank (question bank), (ii) lecture-based learning resource (lectures), (iii) hybrid question- and lecture-based learning resource (hybrid), or (iv) no ECG learning resources (control). After four months, a post-intervention test was administered. The primary outcome was the overall change in ECG interpretation performance, with secondary outcomes including changes in interpretation time, self-reported confidence, and accuracy for specific ECG findings. Both unadjusted and adjusted scores were used for performance assessment., Results: Among 1206 participants, 863 (72 %) completed the trial. Following the intervention, the question bank, lectures, and hybrid intervention groups each exhibited significant improvements, with average unadjusted score increases of 11.4 % (95 % CI, 9.1 to 13.7; P<0.01), 9.8 % (95 % CI, 7.8 to 11.9; P<0.01), and 11.0 % (95 % CI, 9.2 to 12.9; P<0.01), respectively. In contrast, the control group demonstrated a non-significant improvement of 0.8 % (95 % CI, -1.2 to 2.8; P=0.54). While no differences were observed among intervention groups, all outperformed the control group significantly (P<0.01). Intervention groups also excelled in adjusted scores, confidence, and proficiency for specific ECG findings., Conclusion: Web-based, self-directed interventions markedly enhanced ECG interpretation skills across a diverse range of healthcare professionals, providing an accessible and evidence-based solution., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Author (Anthony Kashou, MD) is the founder of The EKG Guy, and has received research funding from GE HealthCare (Milwaukee, WI)., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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84. Emergency department Code STEMI patients with initial electrocardiogram labeled "normal" by computer interpretation: A 7-year retrospective review.
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McLaren JTT, Meyers HP, Smith SW, and Chartier LB
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- Humans, Retrospective Studies, Emergency Service, Hospital, Electrocardiography, ST Elevation Myocardial Infarction, Myocardial Infarction
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- 2024
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85. Successful Treatment of Confirmed Severe Bupropion Cardiotoxicity With Veno-Arterial Extracorporeal Membrane Oxygenation Initiation Prior to Cardiac Arrest.
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Pires KD, Bloom J, Golob S, Sahagún BE, Greco AA, Chebolu E, Yang J, Ting P, Postelnicu R, Soetanto V, Joseph L, Bangalore S, Hall SF, Biary R, Hoffman RS, Park DS, Alviar CL, Harari R, Smith SW, and Su MK
- Abstract
Bupropion is a substituted cathinone (β-keto amphetamine) norepinephrine/dopamine reuptake inhibitor andnoncompetitive nicotinic acetylcholine receptor antagonist that is frequently used to treat major depressive disorder. Bupropion overdose can cause neurotoxicity and cardiotoxicity, the latter of which is thought to be secondary to gap junction inhibition and ion channel blockade. We report a patient with a confirmed bupropion ingestion causing severe cardiotoxicity, for whom prophylactic veno-arterial extracorporeal membrane oxygenation (ECMO) was successfully implemented. The patient was placed on the ECMO circuit several hours before he experienced multiple episodes of hemodynamically unstable ventricular tachycardia, which were treated with multiple rounds of electrical defibrillation and terminated after administration of lidocaine. Despite a neurological examination notable for fixed and dilated pupils after ECMO cannulation, the patient completely recovered without neurological deficits. Multiple bupropion and hydroxybupropion concentrations were obtained and appear to correlate with electrocardiogram interval widening and toxicity., Competing Interests: The authors have declared financial relationships, which are detailed in the next section., (Copyright © 2024, Pires et al.)
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- 2024
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86. How does the antimicrobial stewardship provider role affect prospective audit and feedback acceptance for restricted antibiotics in a Canadian tertiary-care center?
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Hammond KM, Kabbani D, Doucette KE, Smith SW, Lau C, Bains S, Fong K, Stewart J, and Chen JZ
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- Humans, Anti-Bacterial Agents therapeutic use, Feedback, Canada, Antimicrobial Stewardship, Anti-Infective Agents
- Abstract
Of 731 restricted antimicrobial prescriptions subject to antimicrobial stewardship program (ASP) prospective audit and feedback (PAF) over a 3-year period, 598 PAF recommendations (82%) were fully accepted. Physician auditors had an increased odds of PAF recommendation acceptance, reinforcing the complementary role of the ASP physician in the multidisciplinary ASP team.
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- 2024
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87. Impacts to FeRAM Design Arising From Interfacial Dielectric Layers and Wake-Up Modulation in Ferroelectric Hafnium Zirconium Oxide.
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Henry MD, Smith SW, Fields SS, Jaszewski ST, Esteves G, Heinrich H, and Ihlefeld JF
- Abstract
As ferroelectric hafnium zirconium oxide (HZO) becomes more widely utilized in ferroelectric microelectronics, integration impacts of intentional and nonintentional dielectric interfaces and their effects upon the ferroelectric film wake-up (WU) and circuit parameters become important to understand. In this work, the effect of the addition of a linear dielectric aluminum oxide, Al2O3, below a ferroelectric Hf0.58Zr0.42O2 film in a capacitor structure for FeRAM applications with niobium nitride (NbN) electrodes was measured. Depolarization fields resulting from the linear dielectric is observed to induce a reduction of the remanent polarization of the ferroelectric. Addition of the aluminum oxide also impacts the WU of the HZO with respect to the cycling voltage applied. Intricately linked to the design of a FeRAM 1C/1T cell, the metal-ferroelectric-insulator-metal (MFIM) devices are observed to significantly shift charge related to the read states based on aluminum oxide thickness and WU cycling voltage. A 33% reduction in the separation of read states are measured, which complicates how a memory cell is designed and illustrates the importance of clean interfaces in devices.
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- 2024
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88. Challenges with glucagon-like peptide-1 (GLP-1) agonist initiation: a case series of semaglutide overdose administration errors.
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Wiener BG, Gnirke M, Vassallo S, Smith SW, and Su MK
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- Male, Female, Humans, Middle Aged, Adult, Hypoglycemic Agents toxicity, Glucagon-Like Peptide 1 therapeutic use, Glucagon-Like Peptide-1 Receptor agonists, Glucagon-Like Peptide-1 Receptor therapeutic use, Glucose therapeutic use, Diabetes Mellitus, Type 2 drug therapy, Hypoglycemia chemically induced, Hypoglycemia drug therapy, Glucagon-Like Peptides
- Abstract
Background: Prescriptions of semaglutide, a glucagon-like peptide-1 receptor agonist administered weekly for Type 2 diabetes mellitus and obesity, are increasing. Adverse effects from semaglutide overdose are poorly described. We report adverse effects from three unintentional semaglutide overdoses upon initiation., Case Reports: Case 1 : A 53-year-old man unintentionally injected semaglutide 2 mg instead of the recommended 0.1 mg. Case 2 : A 45-year-old woman unintentionally injected semaglutide 2.4 mg instead of 0.25 mg. Case 3 : A 33-year-old woman injected semaglutide 1.7 mg. All three of these patients developed nonspecific gastrointestinal symptoms. No patient experienced hypoglycemia., Discussion: These unintentional semaglutide overdoses occurred due to deficits in patient and prescriber knowledge, and evasion of regulated access to pharmaceuticals. Nonspecific gastrointestinal symptoms predominated. The potential for hypoglycemia following glucagon-like peptide-1 agonist overdose is unclear, though it did not occur in our patients. It is thought that glucagon-like peptide-1 agonists are unlikely to cause hypoglycemia because their effects are glucose-dependent and diminish as serum glucose concentrations approach euglycemia. There is, however, an increase in hypoglycemia when glucagon-like peptide-1 agonists are combined with sulfonylureas., Conclusions: This case series highlights the critical role of patient education and training upon initiation of semaglutide therapy to minimize administration errors and adverse effects from injection of glucagon-like peptide-1 receptor agonists.
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- 2024
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89. Efficacy and Impact of a Multimodal Intervention on CT Pulmonary Angiography Ordering Behavior in the Emergency Department.
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Gyftopoulos S, Simon E, Swartz JL, Smith SW, Martinez LS, Babb JS, Horwitz LI, and Makarov DV
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- Adult, Humans, Emergency Service, Hospital, Fibrin Fibrinogen Degradation Products, Research Design, Angiography, Tomography, X-Ray Computed, Computed Tomography Angiography, Retrospective Studies, Pulmonary Embolism diagnostic imaging
- Abstract
Objective: To evaluate the efficacy of a multimodal intervention in reducing CT pulmonary angiography (CTPA) overutilization in the evaluation of suspected pulmonary embolism in the emergency department (ED)., Methods: Previous mixed-methods analysis of barriers to guideline-concordant CTPA ordering results was used to develop a provider-focused behavioral intervention consisting of a clinical decision support tool and an audit and feedback system at a multisite, tertiary academic network. The primary outcome (guideline concordance) and secondary outcomes (yield and CTPA and D-dimer order rates) were compared using a pre- and postintervention design. ED encounters for adult patients from July 5, 2017, to January 3, 2019, were included. Fisher's exact tests and statistical process control charts were used to compare the pre- and postintervention groups for each outcome., Results: Of the 201,912 ED patient visits evaluated, 3,587 included CTPA. Guideline concordance increased significantly after the intervention, from 66.9% to 77.5% (P < .001). CTPA order rate and D-dimer order rate also increased significantly, from 17.1 to 18.4 per 1,000 patients (P = .035) and 30.6 to 37.3 per 1,000 patients (P < .001), respectively. Percent yield showed no significant change (12.3% pre- versus 10.8% postintervention; P = .173). Statistical process control analysis showed sustained special-cause variation in the postintervention period for guideline concordance and D-dimer order rates, temporary special-cause variation for CTPA order rates, and no special-cause variation for percent yield., Conclusion: Our success in increasing guideline concordance demonstrates the efficacy of a mixed-methods, human-centered approach to behavior change. Given that neither of the secondary outcomes improved, our results may demonstrate potential limitations to the guidelines directing the ordering of CTPA studies and D-dimer ordering., (Copyright © 2023 American College of Radiology. Published by Elsevier Inc. All rights reserved.)
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- 2024
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90. Pilot implementation of a telemedicine care bundle: Antimicrobial stewardship, patient satisfaction, clinician satisfaction, and usability in patients with sinusitis.
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Grabinski Z, Leybov V, Battistich S, Roberts B, Migliozzi Z, Wang Y, Reddy H, and Smith SW
- Abstract
Background: Telemedicine-specific clinical pathways (CPWs), coupled with electronic health record (EHR) order panels, provide an opportunity to ensure evidence and guideline concordant care for conditions at risk for inconsistent diagnoses and management strategies. Standardized provider and patient-facing illness scripts may fill gaps in clinicians' communication skills secondary to a training deficit in virtual care delivery. We aimed to implement and assess the impact of a novel care bundle for sinusitis on antimicrobial use, patient satisfaction, clinician satisfaction, and usability in patients with sinusitis., Methods: A sinusitis care bundle (SCB) for virtual urgent care patients included a sinusitis CPW with communication scripts, sinusitis order panels (SOP), and a patient education smart-phrase (SPESP) within visit instructions. Antimicrobial use was assessed during a 15-month period prior to the start of SCB element implementations and 14-months following, using statistical process control charts. Patient satisfaction was measured using Likert-style surveys. Clinician satisfaction was assessed using a novel survey addressing the SCB-targeted domains (decision support, communication, efficiency, usability, and overall satisfaction)., Results: There were 69,785 and 64,019 evaluable patients in the pre-care and post-care bundle periods, respectively. Despite a significant increase in patients receiving a sinusitis diagnosis in the post-care bundle period (3.2% pre- vs. 6.2% post-, p < 0.001), antimicrobial prescribing decreased by 3.9% (p < 0.001), with statistical process control evidence of special cause change. There was a 5.1% decrease (p < 0.001) in negative patient survey responses after implementation. Clinician survey revealed substantial agreement in the domains relating to improving communication with patients and/or families, with the highest satisfaction for the SPESP over the SOP., Conclusions: Implementation of a telemedicine care bundle for patients diagnosed with sinusitis can balance multiple elements of quality care. The combination of a clinical care pathway, standardized language, and order panels within the EHR has the potential to improve patient satisfaction and decrease antimicrobial prescribing., Competing Interests: Declaration of conflicting interestsThe authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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91. Extracorporeal membrane oxygenation for COVID-19-associated severe acute respiratory distress syndrome in Canada: Analysis of data from the Canadian Nosocomial Infection Surveillance Program.
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Qaddoura A, Bartoszko J, Mitchell R, Frenette C, Johnston L, Mertz D, Pelude L, Thampi N, and Smith SW
- Abstract
Background: Extracorporeal membrane oxygenation (ECMO) for COVID-19 across Canada has not been well-described. We studied trends for patients with COVID-19-related acute respiratory distress syndrome who received ECMO., Methods: Multicentre retrospective cohort study using data from the Canadian Nosocomial Infection Surveillance Program across four different waves. Surveillance data was collected between March 2020 and June 2022. We reported data stratified by ECMO status and wave., Results: ECMO recipients comprised 299 (6.8%) of the 4,408 critically ill patients included. ECMO recipients were younger (median age 49 versus 62 years, p < 0.001), less likely to be vaccinated against COVID-19 (Wave 4 data: 5.3% versus 19%; p = 0.002), and had fewer comorbidities compared to patients who did not receive ECMO. Thirty-day all-cause mortality was similar between the ECMO and non-ECMO groups (23% versus 26%; p = 0.25). Among ECMO recipients, mortality tended to decrease across Waves 1 to 4: 48%, 31%, 18%, and 16%, respectively ( p = 0.04 for trend). However, this was no longer statistically significant when removing the high mortality during Wave 1 ( p = 0.15)., Conclusions: Our findings suggest that critically ill patients in Canadian hospitals who received ECMO had different characteristics from those who did not receive ECMO. We also observed a trend of decreased mortality over the waves for the ECMO group. Possible explanatory factors may include potential delay in ECMO initiation during Wave 1, evolution of the virus, better understanding of COVID-19 disease and ECMO use, and new medical treatments and vaccines available in later waves. These findings may provide insight for future potential pandemics., Competing Interests: The authors have nothing to disclose., (© Association of Medical Microbiology and Infectious Disease Canada (AMMI Canada), 2023.)
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- 2024
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92. Comparison of diagnostic accuracy of current left bundle branch block and ventricular pacing ECG criteria for detection of occlusion myocardial infarction.
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Lindow T, Mokhtari A, Nyström A, Koul S, Smith SW, and Ekelund U
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- Humans, Emergency Service, Hospital, Sensitivity and Specificity, Electrocardiography methods, Bundle-Branch Block diagnosis, Bundle-Branch Block therapy, Bundle-Branch Block epidemiology, Myocardial Infarction diagnosis, Myocardial Infarction epidemiology
- Abstract
Background: Electrocardiographic detection of patients with occlusion myocardial infarction (OMI) can be difficult in patients with left bundle branch block (LBBB) or ventricular paced rhythm (VPR) and several ECG criteria for the detection of OMI in LBBB/VPR exist. Most recently, the Barcelona criteria, which includes concordant ST deviation and discordant ST deviation in leads with low R/S amplitudes, showed superior diagnostic accuracy but has not been validated externally. We aimed to describe the diagnostic accuracy of four available ECG criteria for OMI detection in patients with LBBB/VPR at the emergency department., Methods: The unweighted Sgarbossa criteria, the modified Sgarbossa criteria (MSC), the Barcelona criteria and the Selvester criteria were applied to chest pain patients with LBBB or VPR in a prospectively acquired database from five emergency departments., Results: In total, 623 patients were included, among which 441 (71%) had LBBB and 182 (29%) had VPR. Among these, 82 (13%) patients were diagnosed with AMI, and an OMI was identified in 15 (2.4%) cases. Sensitivity/specificity of the original unweighted Sgarbossa criteria were 26.7/86.2%, for MSC 60.0/86.0%, for Barcelona criteria 53.3/82.2%, and for Selvester criteria 46.7/88.3%. In this setting with low prevalence of OMI, positive predictive values were low (Sgarbossa: 4.6%; MSC: 9.4%; Barcelona criteria: 6.9%; Selvester criteria: 9.0%) and negative predictive values were high (all >98.0%)., Conclusions: Our results suggests that ECG criteria alone are insufficient in predicting presence of OMI in an ED setting with low prevalence of OMI, and the search for better rapid diagnostic instruments in this setting should continue., Competing Interests: Declaration of Competing Interest SWS: Shareholder of Powerful Medical, consultant for Heartbeam, Cardiologs, Welch Allen, and RapidAI., (Copyright © 2023 The Author(s). Published by Elsevier B.V. All rights reserved.)
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- 2024
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93. Plasmid genomic epidemiology of bla KPC carbapenemase-producing Enterobacterales in Canada, 2010-2021.
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Lerminiaux N, Mitchell R, Bartoszko J, Davis I, Ellis C, Fakharuddin K, Hota SS, Katz K, Kibsey P, Leis JA, Longtin Y, McGeer A, Minion J, Mulvey M, Musto S, Rajda E, Smith SW, Srigley JA, Suh KN, Thampi N, Tomlinson J, Wong T, and Mataseje L
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- Humans, Canada epidemiology, Plasmids genetics, Bacterial Proteins genetics, Klebsiella pneumoniae, Anti-Bacterial Agents pharmacology, Carbapenems pharmacology, Genomics, Microbial Sensitivity Tests, beta-Lactamases genetics, beta-Lactamases metabolism, Klebsiella Infections epidemiology
- Abstract
Carbapenems are considered last-resort antibiotics for the treatment of infections caused by multidrug-resistant Enterobacterales , but carbapenem resistance due to acquisition of carbapenemase genes is a growing threat that has been reported worldwide. Klebsiella pneumoniae carbapenemase ( bla
KPC ) is the most common type of carbapenemase in Canada and elsewhere; it can hydrolyze penicillins, cephalosporins, aztreonam, and carbapenems and is frequently found on mobile plasmids in the Tn 4401 transposon. This means that alongside clonal expansion, blaKPC can disseminate through plasmid- and transposon-mediated horizontal gene transfer. We applied whole genome sequencing to characterize the molecular epidemiology of 829 blaKPC carbapenemase-producing isolates collected by the Canadian Nosocomial Infection Surveillance Program from 2010 to 2021. Using a combination of short-read and long-read sequencing, we obtained 202 complete and circular blaKPC -encoding plasmids. Using MOB-suite, 10 major plasmid clusters were identified from this data set which represented 87% (175/202) of the Canadian blaKPC -encoding plasmids. We further estimated the genomic location of incomplete blaKPC -encoding contigs and predicted a plasmid cluster for 95% (603/635) of these. We identified different patterns of carbapenemase mobilization across Canada related to different plasmid clusters, including clonal transmission of IncF-type plasmids (108/829, 13%) in K. pneumoniae clonal complex 258 and novel repE(pEh60-7) plasmids (44/829, 5%) in Enterobacter hormaechei ST316, and horizontal transmission of IncL/M (142/829, 17%) and IncN-type plasmids (149/829, 18%) across multiple genera. Our findings highlight the diversity of blaKPC genomic loci and indicate that multiple, distinct plasmid clusters have contributed to blaKPC spread and persistence in Canada., Competing Interests: The authors declare no conflict of interest.- Published
- 2023
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94. International evaluation of an artificial intelligence-powered electrocardiogram model detecting acute coronary occlusion myocardial infarction.
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Herman R, Meyers HP, Smith SW, Bertolone DT, Leone A, Bermpeis K, Viscusi MM, Belmonte M, Demolder A, Boza V, Vavrik B, Kresnakova V, Iring A, Martonak M, Bahyl J, Kisova T, Schelfaut D, Vanderheyden M, Perl L, Aslanger EK, Hatala R, Wojakowski W, Bartunek J, and Barbato E
- Abstract
Aims: A majority of acute coronary syndromes (ACS) present without typical ST elevation. One-third of non-ST-elevation myocardial infarction (NSTEMI) patients have an acutely occluded culprit coronary artery [occlusion myocardial infarction (OMI)], leading to poor outcomes due to delayed identification and invasive management. In this study, we sought to develop a versatile artificial intelligence (AI) model detecting acute OMI on single-standard 12-lead electrocardiograms (ECGs) and compare its performance with existing state-of-the-art diagnostic criteria., Methods and Results: An AI model was developed using 18 616 ECGs from 10 543 patients with suspected ACS from an international database with clinically validated outcomes. The model was evaluated in an international cohort and compared with STEMI criteria and ECG experts in detecting OMI. The primary outcome of OMI was an acutely occluded or flow-limiting culprit artery requiring emergent revascularization. In the overall test set of 3254 ECGs from 2222 patients (age 62 ± 14 years, 67% males, 21.6% OMI), the AI model achieved an area under the curve of 0.938 [95% confidence interval (CI): 0.924-0.951] in identifying the primary OMI outcome, with superior performance [accuracy 90.9% (95% CI: 89.7-92.0), sensitivity 80.6% (95% CI: 76.8-84.0), and specificity 93.7 (95% CI: 92.6-94.8)] compared with STEMI criteria [accuracy 83.6% (95% CI: 82.1-85.1), sensitivity 32.5% (95% CI: 28.4-36.6), and specificity 97.7% (95% CI: 97.0-98.3)] and with similar performance compared with ECG experts [accuracy 90.8% (95% CI: 89.5-91.9), sensitivity 73.0% (95% CI: 68.7-77.0), and specificity 95.7% (95% CI: 94.7-96.6)]., Conclusion: The present novel ECG AI model demonstrates superior accuracy to detect acute OMI when compared with STEMI criteria. This suggests its potential to improve ACS triage, ensuring appropriate and timely referral for immediate revascularization., Competing Interests: Conflict of interest: R.H. is the co-founder and Chief Medical Officer of Powerful Medical; M.M., J.B., A.I., B.V., V.B., V.K., and A.D. are employees and shareholders of Powerful Medical. S.W.S., H.P.M., and L.P. are shareholders in Powerful Medical., (© The Author(s) 2023. Published by Oxford University Press on behalf of the European Society of Cardiology.)
- Published
- 2023
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95. Missing occlusions: Quality gaps for ED patients with occlusion MI.
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McLaren JTT, El-Baba M, Sivashanmugathas V, Meyers HP, Smith SW, and Chartier LB
- Abstract
Background: ST-elevation Myocardial Infarction (STEMI) guidelines encourage monitoring of false positives (Code STEMI without culprit) but ignore false negatives (non-STEMI with occlusion myocardial infarction [OMI]). We evaluated the hospital course of emergency department (ED) patients with acute coronary syndrome (ACS) using STEMI vs OMI paradigms., Methods: This retrospective chart review examined all ACS patients admitted through two academic EDs, from June 2021 to May 2022, categorized as 1) OMI (acute culprit lesion with TIMI 0-2 flow, or acute culprit lesion with TIMI 3 flow and peak troponin I >10,000 ng/L; or, if no angiogram, peak troponin >10,000 ng/L with new regional wall motion abnormality), 2) NOMI (Non-OMI, i.e. MI without OMI) or 3) MIRO (MI ruled out: no troponin elevation). Patients were stratified by admission for STEMI. Initial ECGs were reviewed for automated interpretation of "STEMI", and admission/discharge diagnoses were compared., Results: Among 382 patients, there were 141 OMIs, 181 NOMIs, and 60 MIROs. Only 40.4% of OMIs were admitted as STEMI: 60.0% had "STEMI" on ECG, and median door-to-cath time was 103 min (IQR 71-149). But 59.6% of OMIs were not admitted as STEMI: 1.3% had "STEMI" on ECG (p < 0.001) and median door-to-cath time was 1712 min (IQR 1043-3960; p < 0.001). While 13.9% of STEMIs were false positive and had a different discharge diagnosis, 32.0% of Non-STEMIs had OMI but were still discharged as "Non-STEMI.", Conclusions: STEMI criteria miss a majority of OMI, and discharge diagnoses highlight false positive STEMI but never false negative STEMI. The OMI paradigm reveals quality gaps and opportunities for improvement., Competing Interests: Declaration of Competing Interest Dr. Meyers has been a paid consultant to Rapid AI and Baxter/Veritas and holds stocks from Powerful Medical. Dr. Smith reported personal fees from Cardiologs, HEARTBEAM, Rapid AI, and Baxter/Veritas, and holds stocks from Powerful Medical and Pulse AI., (Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2023
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96. A Bayesian approach to acute coronary occlusion.
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McLaren JTT and Smith SW
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- Humans, Bayes Theorem, Artificial Intelligence, Electrocardiography, Coronary Occlusion, ST Elevation Myocardial Infarction
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In the STEMI paradigm, the disease (acute coronary occlusion) is defined and named after one element (ST elevation, without regard to the remainder of the QRST) of one imperfect test (the ECG). This leads to delayed reperfusion for patients with acute coronary occlusion whose ECGs don't meet STEMI criteria. In this editorial, we elaborate on the article by Jose Nunes de Alencar Neto about applying Bayesian reasoning to ECG interpretation. The Occlusion MI (OMI) paradigm offers evidencebased advances in ECG interpretation, expert-trained artificial intelligence, and a paradigm shift that incorporates a Bayesian approach to acute coronary occlusion., (Copyright © 2023 Elsevier Inc. All rights reserved.)
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- 2023
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97. Translational evaluation of on/off alternative reinforcement cycling.
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Smith SW and Greer BD
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- Adult, Humans, Reinforcement Schedule, Reinforcement, Psychology, Treatment Outcome, Conditioning, Operant, Extinction, Psychological
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Cycling between the availability and unavailability of reinforcement for alternative responding has successfully reduced resurgence in basic laboratory evaluations, but this approach represents a marked departure from current standards of care when treating problem behavior, warranting careful translation before its use clinically. Therefore, with extinction arranged for target responding across groups in Phase 2, we evaluated the effects of cycling between the availability and unavailability of differential reinforcement of alternative behavior (DRA) using a computer-based task with adult humans recruited through Amazon MTurk. Two control groups experienced constant DRA in Phase 2, with one group experiencing a dense DRA schedule and another group experiencing a lean DRA schedule. The cycling DRA group tended to show greater reductions in target responding and improved discrimination in Phase 2 and less target responding across Phases 2 and 3 than the lean DRA and dense DRA groups. These preliminary findings suggest that on/off DRA cycling procedures may produce more desirable treatment outcomes than constant DRA without producing negative side effects; however, further research is needed to confirm these possibilities., (© 2023 Society for the Experimental Analysis of Behavior.)
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- 2023
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98. ECG Interpretation Proficiency of Healthcare Professionals.
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Kashou AH, Noseworthy PA, Beckman TJ, Anavekar NS, Cullen MW, Angstman KB, Sandefur BJ, Shapiro BP, Wiley BW, Kates AM, Huneycutt D, Braisted A, Smith SW, Baranchuk A, Grauer K, O'Brien K, Kaul V, Gambhir HS, Knohl SJ, Albert D, Kligfield PD, Macfarlane PW, Drew BJ, and May AM
- Subjects
- Humans, Delivery of Health Care, Clinical Competence, Electrocardiography
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ECG interpretation is essential in modern medicine, yet achieving and maintaining competency can be challenging for healthcare professionals. Quantifying proficiency gaps can inform educational interventions for addressing these challenges. Medical professionals from diverse disciplines and training levels interpreted 30 12-lead ECGs with common urgent and nonurgent findings. Average accuracy (percentage of correctly identified findings), interpretation time per ECG, and self-reported confidence (rated on a scale of 0 [not confident], 1 [somewhat confident], or 2 [confident]) were evaluated. Among the 1206 participants, there were 72 (6%) primary care physicians (PCPs), 146 (12%) cardiology fellows-in-training (FITs), 353 (29%) resident physicians, 182 (15%) medical students, 84 (7%) advanced practice providers (APPs), 120 (10%) nurses, and 249 (21%) allied health professionals (AHPs). Overall, participants achieved an average overall accuracy of 56.4% ± 17.2%, interpretation time of 142 ± 67 seconds, and confidence of 0.83 ± 0.53. Cardiology FITs demonstrated superior performance across all metrics. PCPs had a higher accuracy compared to nurses and APPs (58.1% vs 46.8% and 50.6%; P < 0.01), but a lower accuracy than resident physicians (58.1% vs 59.7%; P < 0.01). AHPs outperformed nurses and APPs in every metric and showed comparable performance to resident physicians and PCPs. Our findings highlight significant gaps in the ECG interpretation proficiency among healthcare professionals., 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 Elsevier Inc. All rights reserved.)
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- 2023
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99. Education curriculum assessment for teaching electrocardiography: Rationale and design for the prospective, international, randomized controlled EDUCATE trial.
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Kashou AH, Noseworthy PA, Beckman TJ, Anavekar NS, Cullen MW, Angstman KB, Sandefur BJ, Thompson CA, Halvorsen AJ, Shapiro BP, Wiley BW, Kates AM, Cosco D, Sadhu JS, Thakker PD, Huneycutt D, Braisted A, Smith SW, Baranchuk A, Grauer K, O'Brien K, Kaul V, Gambhir HS, Knohl SJ, Restrepo D, Kligfield PD, Macfarlane PW, Drew BJ, and May AM
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- Humans, Prospective Studies, Learning, Educational Measurement, Clinical Competence, Teaching, Electrocardiography methods, Curriculum
- Abstract
Background: Electrocardiogram (ECG) interpretation training is a fundamental component of medical education across disciplines. However, the skill of interpreting ECGs is not universal among medical graduates, and numerous barriers and challenges exist in medical training and clinical practice. An evidence-based and widely accessible learning solution is needed., Design: The EDUcation Curriculum Assessment for Teaching Electrocardiography (EDUCATE) Trial is a prospective, international, investigator-initiated, open-label, randomized controlled trial designed to determine the efficacy of self-directed and active-learning approaches of a web-based educational platform for improving ECG interpretation proficiency. Target enrollment is 1000 medical professionals from a variety of medical disciplines and training levels. Participants will complete a pre-intervention baseline survey and an ECG interpretation proficiency test. After completion, participants will be randomized into one of four groups in a 1:1:1:1 fashion: (i) an online, question-based learning resource, (ii) an online, lecture-based learning resource, (iii) an online, hybrid question- and lecture-based learning resource, or (iv) a control group with no ECG learning resources. The primary endpoint will be the change in overall ECG interpretation performance according to pre- and post-intervention tests, and it will be measured within and compared between medical professional groups. Secondary endpoints will include changes in ECG interpretation time, self-reported confidence, and interpretation accuracy for specific ECG findings., Conclusions: The EDUCATE Trial is a pioneering initiative aiming to establish a practical, widely available, evidence-based solution to enhance ECG interpretation proficiency among medical professionals. Through its innovative study design, it tackles the currently unaddressed challenges of ECG interpretation education in the modern era. The trial seeks to pinpoint performance gaps across medical professions, compare the effectiveness of different web-based ECG content delivery methods, and create initial evidence for competency-based standards. If successful, the EDUCATE Trial will represent a significant stride towards data-driven solutions for improving ECG interpretation skills in the medical community., Competing Interests: Declaration of Competing Interest A.H.K. is the founder and CEO of The EKG Guy, and has received research funding from GE HealthCare (Milwaukee, WI)., (Copyright © 2023 Elsevier Inc. All rights reserved.)
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- 2023
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100. Acute Coronary Occlusion in a Patient With Prior Known Right Bundle Branch Block: Another Chink in the Armor for the ST-Elevation Myocardial Infarction Criteria.
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Triska J, George J, Rector G, Alam M, Smith SW, Meyers HP, and Birnbaum Y
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- Humans, Bundle-Branch Block diagnosis, Heart, Patients, Coronary Occlusion complications, Coronary Occlusion diagnostic imaging, ST Elevation Myocardial Infarction diagnosis
- Published
- 2023
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