Prediction of Coronary Artery Disease Based on the Rates of Systolic Blood Pressure to Workloads in Exercise ECG Stress Test in Males with Normal Blood Pressure

Indrit Temali and Ahmet Kamberi
American Hospital of Tirana

Abstract

Many studies have demonstrated an exaggerated systolic blood pressure (SBP) response in patients with coronary artery disease (CAD). Higher rates of SBP to workloads during exercise ECG stress test in hypertensive patients indicate the presence of significant CAD. The current study examines the independent predictability of the rates of SBP to workloads during exercise ECG stress test for normotensive male patients in detecting the CAD patients. Normotensive men enrolled in the study underwent an exercise ECG test and a coronary angiography within a month period. They were measured ratios of SBP to the workloads during the starting and peak of the exercise, as well as in the fourth minute of recovery after performing an exercise stress test. Statistical results of ANOVA and stepwise regression revealed a statistically significant relationship between higher rates of SBP to workloads in starting, peak and forth minutes of recovery of ECG stress test with the presence of positive coronary angiography. This is another important clue for the physician who evaluated the exercise ECG stress test results that despite other characteristics, only by observing the above mentioned rates, the CAD patients can be detected.


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