Is There any Relationship Between Myocardial Repolarization Parameters and the Frequency of Ventricular Premature Contractions?   
Yazarlar (8)
Doç. Dr. Kayıhan KARAMAN Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Dr. Öğr. Üyesi Metin KARAYAKALI Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Arif Arısoy
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
İlker Akar
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Mustafa Öztürk
Sağlık Bilimleri Üniversitesi, Türkiye
Ahmet Yanık
Samet Yılmaz
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Prof. Dr. Ataç ÇELİK Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Arquivos Brasileiros de Cardiologia
Dergi ISSN 0066-782X Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 05-2018
Cilt No 110
Sayı 6
Sayfalar 534 / 541
DOI Numarası 10.5935/abc.20180079
Makale Linki http://www.gnresearch.org/doi/10.5935/abc.20180079
Özet
Abstract Background: Ventricular premature contractions (VPCs) may trigger lethal ventricular arrhythmias in patients with structural heart disease. However, this role of VPCs in healthy people remains controversial once that not enough clinical trials are available. Recently, some myocardial repolarization markers, such as Tp-e interval, Tp-e/QT, and Tp-e/QTc ratios, have been reported to be useful for predicting lethal ventricular arrhythmias in various clinical disorders without structural heart disease. Objective: In this study, we aimed to investigate the relation between VPC frequent and myocardial repolarization markers in individuals without structural heart disease. Methods: This study included 100 patients who had complaints of dizziness and palpitations. Twelve-lead electrocardiography and 24-hour ambulatory Holter recordings were obtained from all patients. VPC burden was calculated as the total number of VPCs divided by the number of all QRS complexes in the total recording time. P-values < 0.05 were considered significant. Results: Tp-e interval and Tp-e/QTc ratio were significantly higher in patients with higher VPC burden than in patients with lower VPC burden, and a positive correlation was found between these markers and VPC burden. Tp-e (β = 1.318, p = 0.043) and Tp-e/QTc (β = -405.136, p = 0.024) in the lead V5 were identified as independent predictors of increased VPC burden. Conclusions: Tp-e interval and Tp-e/QTc ratio increased in patients with high VPC number. Our study showed that VPCs may have a negative effect on myocardial repolarization. This interaction may lead to an increased risk of malignant …
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