The effect of coronary slow flow on ventricular repolarization parameters

Yükleniyor...
Küçük Resim

Tarih

2023

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

ScienceDirect

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

Introduction: Ischemia due to microvascular dysfunction may be responsible for the heterogeneity of ventricular repolarization in coronary slow flow. To our knowledge, there is no study in which QT interval, Tp-Te interval, index of cardiac-electrophysiological balance (iCEB), and frontal QRS-T angle were evaluated together in patients with CSF. In this study, we examined for the first time the relationship between all these myocardial repolarization parameters and CSF. Materials and methods: The study group included 178 patients (99 female, mean age: 50.6 ± 8.6 years) with isolated CSF without stenotic lesions and with angiographically proven normal coronary arteries. The control group included 120 patients (71 female, mean age: 49.3 ± 9.4 years) with normal coronary angiography. QRS duration, QT interval, QTc interval, Tp-Te interval, Tp-Te/QT, Tp- Te/QTc, iCEB score, and frontal QRS-T angle were calculated from 12‑lead ECGs. Results: There was no significant difference in demographic parameters between the two groups. Compared with the control group, patients with CSF had significantly longer QTmax duration, QT dispersion, Tp-Te interval, and higher iCEB score, wider frontal QRS-T angle. Conclusion: In our study, we found that many of the ventricular repolarization parameters were adversely affected in patients with CSF. Impaired parameters may be associated with the risk of malignant ventricular arrhythmias.

Açıklama

Anahtar Kelimeler

Coronary slow flowVentricular repolarizationElectrocardiography

Kaynak

Journal of Electrocardiology

WoS Q Değeri

Scopus Q Değeri

N/A

Cilt

78

Sayı

Künye

Karahan, M. Z., Aktan, A., Güzel, T., Günlü, S., & Kılıç, R. (2023). The effect of coronary slow flow on ventricular repolarization parameters. Journal of Electrocardiology, 78, 39-43.