The relationship between coronary artery disease and hs-troponin T changing during exercise stress test

Year 2021, Volume: 3 Issue: 4, 156 - 163, 29.10.2021

İsmail Gürbak , Musatafa Tarık Ağaç , Şükrü Çelik

https://doi.org/10.46310/tjim.875638

Abstract

Background The aim of this study was to investigate the relationship between coronary artery disease and changing of high sensitivity troponin T (hs-TnT) values during exercise stress test (EST) in patients with suspected coronary artery disease.
Material and Methods We included 68 patients who underwent coronary angiography after positive EST. The hs-TnT values of all patients were measured before EST and at 4 hours after EST. Patients with coronary artery stenosis of 50% or more were divided into two groups [CAD (+)] and those without [CAD (-)].hs-TnT values measured before and after EST were compared.
Results Among the 68 patients evaluated, 26 patients (39.3%) were identified as CAD (-) and 42 patients (61.7) as CAD (+).There was no significant difference between the two groups in the hs-TnT values before and after EST. There was a significant correlation between hs-TnT before exercise and pre-EST systolic blood pressure (SBP) (r = 0.313, p = 0.009) and hs-TnT before exercise and peak SBP during EST (r=0.241, p=0.038), anda also we found a correlation between hs-TnT after EST and peak SBP during EST (r = 0.398, p = 0.001). However, a strong negative correlation was found between the Duke treadmill score (DTS) calculated by the exercise test parameters and the Syntax score, which indicates the extent and severity of coronary artery disease (r =-0.521, p = 0.0001).
Conclusions As a result of our study, it was observed that hs-TnT values did not contribute to the diagnosis of coronary artery disease. However, DTS evaluation performed before invasive coronary angiography can provide important information about coronary artery lesion complexity.

Keywords

hs-troponin T, exercise stress testing, coronary artery disease, syntax score

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