Tp-e Interval, Tp-e/QT and Tp-e/QTc Ratios in Female Patients with Small Heart Syndrome

Abstract

Objective:The relevance of Tp-e, QT dispersion and the ratios between these two as predictive variables of ventricular arrhythmias, particularly ventricular prematurity depolarization and sudden cardiac death, were assessed in this study of patients who were identified with small heart syndrome.Method:The study included 94 female patients, as 47 small-heart and 47 normal-heart patients, by calculating their cardiothoracic ratios. We measured QTmax, QTmin, QRS, JT and Tp-e intervals, Tp-e/QTmax, Tp-e/QTcmax, Tp-e/JT and Tp-e/JTc rates and estimated QTcmax, QTcmin, cQTd and JTc intervals.Results:cQTd, Tp-e, Tp-e/QTcmax, and Tp-e/JTc values were significantly higher in the small heart patient group. QTcmin and QTcmin values were significantly lower.Conclusion:Tp-e and QT dispersion values are important markers in patients with small heart syndrome in terms of predicting ventricular repolarization and a possible ventricular arrhythmia.

Keywords

• electrocardiogram
• small heart syndrome
• ventricular repolarization