International journal of cardiology · 2025
Analysis of the diagnostic value of pre-event intracardiac electrogram (pre-EGM) storage function in cardiac electronic implantable devices for arrhythmia diagnosis.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Niu Zeyu, Wei Zimo, Wang Jia, Jin Xin, Liu Junpeng, Wang Zhilei, Yan Ruijuan, Lv You, Zou Tong
Аннотация
BACKGROUND AND AIMS: Previous cardiac implantable electronic devices (CIEDs) automatically monitored, diagnosed, and stored atrial or ventricular tachyarrhythmias as intracardiac electrograms (EGMs). Abbott's new-generation CIEDs offer pre-event EGM storage (Pre-EGM), recording cardiac electrical activity before arrhythmic events. This study determines whether Pre-EGM provides additional diagnostic information for arrhythmic events.
METHODS: We consecutively enrolled 92 patients with CIEDs featuring Pre-EGM functionality at Beijing Hospital (April 2015-July 2023). Devices reported 1543 events based on built-in algorithms. Three cardiac electrophysiology experts independently interpreted each event twice: first using only post-trigger EGMs, then incorporating Pre-EGM data for final classification.
RESULTS: Among 1260 automatic mode switch (AMS) events, 994 (78.89 %) were diagnosed using EGM-only interpretation versus 1251 (99.29 %) with Pre-EGM incorporation, representing a 20.40 % improvement in diagnostic yield. Among 187 arrhythmic events including high ventricular rate, premature ventricular contractions, supraventricular tachycardia, and ventricular tachycardia, 124 (66.31 %) were diagnosed using EGM-only versus 183 (97.86 %) with Pre-EGM, representing 31.55 % improvement.
CONCLUSIONS: Relying solely on post-event EGMs for event determination is insufficiently precise. Pre-EGM functionality provides comprehensive information for definitive diagnosis of CIED-recorded events, representing superior post-implantation device analysis.
METHODS: We consecutively enrolled 92 patients with CIEDs featuring Pre-EGM functionality at Beijing Hospital (April 2015-July 2023). Devices reported 1543 events based on built-in algorithms. Three cardiac electrophysiology experts independently interpreted each event twice: first using only post-trigger EGMs, then incorporating Pre-EGM data for final classification.
RESULTS: Among 1260 automatic mode switch (AMS) events, 994 (78.89 %) were diagnosed using EGM-only interpretation versus 1251 (99.29 %) with Pre-EGM incorporation, representing a 20.40 % improvement in diagnostic yield. Among 187 arrhythmic events including high ventricular rate, premature ventricular contractions, supraventricular tachycardia, and ventricular tachycardia, 124 (66.31 %) were diagnosed using EGM-only versus 183 (97.86 %) with Pre-EGM, representing 31.55 % improvement.
CONCLUSIONS: Relying solely on post-event EGMs for event determination is insufficiently precise. Pre-EGM functionality provides comprehensive information for definitive diagnosis of CIED-recorded events, representing superior post-implantation device analysis.