Turk Kardiyol Dern Ars. Ahead of Print: TKDA-11524 | DOI: 10.5543/tkda.2018.11524
Tp-e Interval and Tp-e/QT Ratio in Clinically Stable Pediatric Heart Transplant Recipients
, Feyza Ayşenur Paç1
, Sabit Kocabeyoğlu2
, Maze Zabun1
, Deniz Eriş1
, Doğan Emre Sert2
, Ümit Kervan2
, Mustafa Paç21
Yuksek Ihtisas Heart-Education and Research Hospital, Department of Pediatric Cardiology, Ankara2
Yuksek Ihtisas Heart-Education and Research Hospital, Department of Cardiovascular Surgery Ankara
OBJECTIVE There are no studies in the literature to assess T wave peak-to-end (Tp-e) interval, Tp-e/QT ratio, and Tp-e/QTc ratio in pediatric heart transplant recipients (HTR), who have a higher risk of sudden cardiac death than the normal population. The aim of this study was to assess alterations in ventricular repolarization by using the Tpe interval, Tpe/QT ratio and Tpe/QTc ratio in clinically stable pediatric HTR.
METHODS A total of 13 clinically stable HTR, 13 patients who had undergone cardiac surgery (CS) under cardiopulmonary bypass, and 16 healthy controls under 18 years were retrospectively evaluated within the scope of this study.
RESULTS No significant differences were observed between HTR, CS, and control groups in terms of QTc, JTc intervals, and T wave amplitude (p > 0.05). Tp-e interval (p = 0.001), Tp-e/QT ratio (p < 0.001), and Tp-e/QTc ratio (p = 0.001) were significantly higher in the HTR group compared to CS and normal controls.
CONCLUSION Tp-e interval, Tp-e/QT ratio, and Tp-e/QTc ratio increased in stable HTR compared to the normal and CS groups.
Dispersion of ventricular repolarization, Heart transplantation, Children
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Corresponding Author: Serhat Koca, Türkiye