Remodeling of the 12-lead electrocardiogram in immediate survivors of sudden cardiac arrest

Autor: Audrey Uy-Evanado, Elizabeth P. Held, Jonathan Jui, Kotoka Nakamura, Sumeet S. Chugh, Kyndaron Reinier, Harpriya Chugh
Rok vydání: 2020
Předmět:
Zdroj: Resuscitation
ISSN: 0300-9572
Popis: BACKGROUND: The ECG is a critical diagnostic tool for the management of immediate sudden cardiac arrest (SCA) survivors, but can be altered following the SCA event. A limited number of studies report that electrical remodeling post SCA is due to prolonged myocardial repolarization, but a better understanding of this phenomenon is needed. AIM: To identify specific ECG abnormalities that follow SCA in immediate survivors. METHODS: SCA survivors with a pre-arrest ECG and an ECG obtained within 48 hours post-SCA were prospectively collected in the Oregon Sudden Unexpected Death Study (Portland metro region) from 2002–2015. Ventricular depolarization and repolarization measurements were compared between pre-arrest and post-arrest ECGs using paired t-tests and assessed for association with survival using unpaired t-tests and Pearson’s chi-square tests. RESULTS: A pre-arrest ECG and post-arrest ECG were available for 297 SCA cases (67.8 ± 13.4 years; 65.3% male). From the pre- to post-arrest setting, there was a significant mean increase in QRS (21 ms, p
Databáze: OpenAIRE