Suy giảm biến dạng cơ tim trên siêu âm đánh dấu mô ở bệnh nhân tăng huyết áp

Speckle tracking echocardiography is a novel technique that can detect early changes in cardiac function in various conditions. Objective: To determine the rate and degree of impaired left ventricular global longitudinal strain (LV GLS) derived f-rom speckle tracking echocardiography in patients with systemic arterial hypertension and to discover the potential factors associated with impaired LV GLS. Phương pháp nghiên cứu: Cross-sectional observational study conducted in 55 patients with essential arterial hypertension who underwent the speckle tracking echocardiography at the University Medical Center, Ho Chi Minh City. Kết quả: The impaired LV GLS rate was 70.9% in hypertensive patients. LV GLS correlated positively with left ventricular ejection fraction (r=0.533, p <0.001) and negatively with the left ventricular mass (r=-0.50, p <0.001). The blood pressure values, therapeutic non-compliance were the principle predictors of impaired LV GLS (p <0.05 and p=0.008, respectively). Conclusions: In patients with essential arterial hypertension, the LV GLS reduced frequently and early before changes of left ventricular ejection fraction and left ventricular mass. The values of systemic blood pressure, the therapeutic non-compliance were risk factors of impired LV GLS. Further longitudinal studies are needed to establish the predictive value of impaired LV GLS in hypertensive patients.