Clinical significance of Tp-e interval, Tp-e/QT ratio, and Tp-e/QTc ratio in patients with renal colic

Background: Renal colic is a frequently encountered condition in the emergency department (ED), characterized by the sudden and severe onset of flank pain. To assess the risk of cardiac arrhythmia in patients with renal colic, electrocardiography (ECG) was used to investigate several ventricular arrhythmia characteristics, such as the Tp-e interval, Tp-e/QT ratio, and Tp-e/QTc ratio.Objective: This study aimed to investigate the role of the Tp-e interval, Tp-e/QT ratio, and Tp-e/QTc ratio as cardiac arrhythmia stimulators in patients with renal colic. By evaluating these parameters, the risk of developing cardiac arrhythmia in individuals with renal colic could be better understood.Methods: The study included patients who presented to the tertiary emergency department with renal colic over a period of six months, from June ۱۰, ۲۰۲۲, to December ۳۱, ۲۰۲۲. Upon admission, all patients underwent an ECG, and measurements of QT interval and Tp-e interval were conducted in leads D۲ and V۵. These measurements served as indicators for assessing the potential risk of cardiac arrhythmia in patients with renal colic.Results: The levels of D۲ TPE were significantly elevated in patients experiencing renal colic attacks compared to both the pain-free period and the control group (p=۰.۰۳۶). Additionally, the levels of D۲ Tpe and QTc were significantly higher during the renal colic attack period as well as the pain-free period when compared to the control group (p=۰.۰۴۱).Conclusions: The Tp-e interval, Tp-e/QT ratio, and Tp-e/QTc ratio may potentially be associated with fatal ventricular arrhythmias in patients who present to emergency departments with renal colic pain.

Keywords:

Tp-e interval , Tp-e/QT ratio , Tp-e/QTc ratio , Renal colic