Risk assessment of post‐myocardial infarction patients with preserved ejection fraction using 45‐min short resting Holter electrocardiographic recordings

Autor: Konstantinos Triantafyllou, Nikolaos Fragakis, Konstantinos A. Gatzoulis, Antonios Antoniadis, Georgios Giannopoulos, Petros Arsenos, Dimitrios Tsiachris, Christos‐Konstantinos Antoniou, Konstantinos Trachanas, Konstantinos Tsimos, Vassilios Vassilikos
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Annals of Noninvasive Electrocardiology, Vol 28, Iss 6, Pp n/a-n/a (2023)
Druh dokumentu: article
ISSN: 1542-474X
1082-720X
DOI: 10.1111/anec.13087
Popis: Abstract Background Risk stratification for sudden cardiac death in post‐myocardial infarction (post‐MI) patients remains a challenging task. Several electrocardiographic noninvasive risk factors (NIRFs) have been associated with adverse outcomes and were used to refine risk assessment. This study aimed to evaluate the performance of NIRFs extracted from 45‐min short resting Holter ECG recordings (SHR), in predicting ventricular tachycardia inducibility with programmed ventricular stimulation (PVS) in post‐MI patients with preserved left ventricular ejection fraction (LVEF). Methods We studied 99 post‐MI ischemia‐free patients (mean age: 60.5 ± 9.5 years, 86.9% men) with LVEF ≥40%, at least 40 days after revascularization. All the patients underwent PVS and a high‐resolution SHR. The following parameters were evaluated: mean heart rate, ventricular arrhythmias (premature ventricular complexes, couplets, tachycardias), QTc duration, heart rate variability (HRV), deceleration capacity, heart rate turbulence, late potentials, and T‐wave alternans. Results PVS was positive in 24 patients (24.2%). HRV, assessed by the standard deviation of normal‐to‐normal R–R intervals (SDNN), was significantly decreased in the positive PVS group (42 ms vs. 51 ms, p = .039). SDNN values
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