Tp-e interval and Tp-e/QT ratio before and after catheter ablation in patients with premature ventricular complexes.
OBJECTIVE
Tp-e/QT ratio is a novel marker of ventricular repolarization. The aim of the study is to evaluate the Tp-e interval and Tp-e/QT ratio before and after radiofrequency ablation (RFA) for patients with frequent premature ventricular complexes (PVCs).


METHODS
The study included 151 consecutive patients who underwent RFA for treatment of symptomatic frequent PVCs.


RESULTS
Tp-e interval, Tp-e/QT ratio and Tp-e/QTc ratio (all p < 0.001) were significantly different before and after RFA. After the procedure, mean left ventricular ejection fraction of the population were significantly increased than before RFA (p < 0.001). There was a significant correlation between preprocedural Tp-e/QTc ratio and PVC burden in patients (p = 0.023).


CONCLUSIONS
Our study shows that PVCs may have a negative effect on ventricular repolarization.
Department of Cardiology, Türkiye Yüksek İhtisas Education & Research Hospital, Ankara, Turkey.
Çağrı
Ç
Yayla
Department of Cardiology, Türkiye Yüksek İhtisas Education & Research Hospital, Ankara, Turkey.
Fırat
F
Özcan
Department of Cardiology, Türkiye Yüksek İhtisas Education & Research Hospital, Ankara, Turkey.
Dursun
D
Aras
Department of Cardiology, Türkiye Yüksek İhtisas Education & Research Hospital, Ankara, Turkey.
Osman
O
Turak
Department of Cardiology, Türkiye Yüksek İhtisas Education & Research Hospital, Ankara, Turkey.
Özcan
Ö
Özeke
Department of Cardiology, Türkiye Yüksek İhtisas Education & Research Hospital, Ankara, Turkey.
Serkan
S
Çay
Department of Cardiology, Türkiye Yüksek İhtisas Education & Research Hospital, Ankara, Turkey.
Serkan
S
Topaloğlu
D000328:Adult; D017115:Catheter Ablation; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D006339:Heart Rate; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D016277:Ventricular Function, Left / Q000502:physiology; D018879:Ventricular Premature Complexes / Q000503:physiopathology* / Q000601:surgery
QT interval; Tp-e interval; Tp-e/QT ratio; ablation; premature ventricular complexes; ventricular repolarization