Background
Elevated blood pressure is associated with an increased cardiovascular risk. QRS-T angle has been defined as the angle between the directions of ventricular depolarization (mean QRS vector) and ventricular repolarization (mean T vector), and has been proposed as a prognostic value for cardiac primary end-points.
However, there is no literature data about predictive value and availability of QRS/T angle in patients undergoing cardiac surgery yet.
Results
Patients with a diagnosis of hypertension have wider QRS-T angle compared to those of narrow QRS-T angle (p = 0.001). Also, we found that older and female subjects have wider QRS-T angle compared to those of younger and male subjects ( p < 0.005 for both). We found a significant correlation with hypertension and QRS-T angle (r= 0.205, p= <0.001). Backward stepwise multivariate logistic regression analysis including diabetes mellitus, gender, age, smoke, LDL-cholesterol, HDL-cholesterol, creatinine, LVEF and QRS-T angle was performed and revealed that beyond age, gender and diyabetes mellitus QRS-T angle (OR = 1.009 95% CI 1.002–1.017) was found as independent variable which had a significant effect on HT (Wald = 6.915; p = 0.009).
Conclusion
We found that QRS/T angle might carry a prognostic value for subjects with hypertension.
