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Your search keyword '"Martin-Gill, Christian"' showing total 11 results
Start Over Author "Martin-Gill, Christian" Journal journal of electrocardiology
11 results on '"Martin-Gill, Christian"'

2. Saliency maps to enhance explainability of occlusion myocardial infarction classification among pre-hospital chest pain patients

Author

Riek, Nathan T., primary, Bouzid, Zeineb, additional, Gokhale, Tanmay, additional, Van Dam, Peter, additional, Kraevsky-Philips, Karina, additional, Helman, Stephanie, additional, Martin-Gill, Christian, additional, Callaway, Clifton W., additional, Saba, Samir, additional, Sejdic, Ervin, additional, Zegre-Hemsey, Jessica K., additional, Akcakaya, Murat, additional, and Al-Zaiti, Salah, additional

Published
2024
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3. Evaluation of beat-to-beat ventricular repolarization lability from standard 12‐lead ECG during acute myocardial ischemia

Author

Al-Zaiti, Salah S, Alrawashdeh, Mohammad, Martin-Gill, Christian, Callaway, Clifton, Mortara, David, and Nemec, Jan

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Cardiovascular, Clinical Research, Heart Disease, Heart Disease - Coronary Heart Disease, Ambulances, Chest Pain, Electrocardiography, Female, Humans, Male, Middle Aged, Myocardial Ischemia, Prospective Studies, Risk Assessment, Software, Tachycardia, Ventricular, 12-Lead ECG, Emergency Medical Services, Ischemia, Repolarization, T wave lability, Cardiorespiratory Medicine and Haematology, Cardiovascular System & Hematology, Cardiovascular medicine and haematology
Abstract

BackgroundAcute myocardial ischemia is a common cause of ventricular arrhythmias, yet recent ECG methods predicting susceptibility to ventricular tachyarrhythmia have not been fully evaluated during spontaneous ischemia. We sought to evaluate the clinical utility of alternans and non-alternans components of repolarization variability from the standard 10-second 12-lead ECG signals to risk stratify patients with acute chest pain.MethodsWe enrolled consecutive, non-traumatic, chest pain patients transported through Emergency Medical Services (EMS) to three tertiary care hospitals with cardiac catheterization lab capabilities in Pittsburgh, PA. ECG signals were manually annotated by an electrophysiologist, then automatically processed using a custom-written software. Both T wave alternans (TWA) and non-alternans repolarization variability (NARV) were calculated using the absolute RMS differences over the repolarization window between odd/even averaged beats and between consecutive averaged pairs, respectively. The primary study outcome was the presence of acute myocardial infarction (AMI) documented by cardiac angiography.ResultsAfter excluding patients with secondary repolarization changes (n=123) and those with excessive noise (n=90), our final sample included 537 patients (age 57±16years, 56% males). Patients with AMI (n=47, 9%) had higher TWA and NARV values (p

Published
2017

9. Electrocardiographic Methods for the Prompt Identification of Coronary Events (EMPIRE): Algorithm Testing & Validation on an Independent Training Cohort

Author

Al-Zaiti, Salah, primary, Frisch, Stephanie, additional, Besomi, Lucas, additional, Faramand, Ziad, additional, Alrawashdeh, Mohammad, additional, Martin-Gill, Christian, additional, Callaway, Clifton, additional, Gregg, Richard E., additional, Lux, Robert, additional, and Sejdic, Ervin, additional

Published
2019
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