Mối liên quan giữa QRS phân mảnh trên điện tâm đồ và chức năng tâm trương thất trái ở bệnh nhân hội chứng chuyển hóa

Abstract

Summary

Objective: To evaluate the relationship between fragmented QRS and left ventricular diastolic function in patients with metabolic syndrome. Subject and method: a cross sectional study was conducted at the Department of Cardiology, Viet Tiep Friendship Hospital, in Hai Phong and including 123 patients with metabolic syndrome according to criteria of the International Diabetes Federation in 2005. Left ventricular diastolic function was estimated by echocardiographic examination. Standard 12-lead electrocardiograms were recorded and analyzed to find association with left venticular diastolic function. Result: The prevalence of patients with fragmented QRS and left venticular diastolic dysfunction was 29.3% and 27.6%. The mean of A velocity, S velocity, D velocity, E/E’ ratio was higher in the patients with fragmented QRS than in those without fragmented QRS (p<0.05). The fragmented QRS increased the risk of left ventricular diastolic dysfunction (OR = 3.1; 95%CI: 1.3 - 7.1; p=0.01). Conclusion: The presence of fragmented QRS on electrocardiography increased the risk of left ventricular diastolic dysfunction.

Keywords: Metabolic syndrome, fragmented QRS, left ventricular diastolic function.