Abstract

Info

Title:: Using ultrasonic cardiogram to evaluate left ventricular systolic synchrony and cardiac function in ischemic heart disease patients

Author(s):: MA Runfeng; Department of Internal Medicine, the People’s Hospital of Baiyun District, Guangzhou 510500, China

Keywords:: ; Keywords: ultrasonic cardiogram; ischemic heart disease; ventricular systolic synchrony; cardiac function

Abstract:: Abstract: Objective To study left ventricular systolic synchrony and cardiac function in ischemic heart disease patients with ultrasonic cardiogram. Methods A total of 80 patients with ischemic heart diseases were enrolled, including 28 cases of silent heart failure, 40 of mild to moderate heart failure and 16 of severe and refractory heart failure. Ultrasonic cardiogram was used to evaluate interventricular synchrony with interventricular mechanical delay (IVMD) and intraventricular systolic synchrony with standard deviation of the time to peak systolic velocity (Ts-SD). The evaluated cardiac function indicators included left ventricular ejection fraction (LVEF), left ventricular end diastolic diameter (LVEDd), type B natriuretic peptide (BNP), and QRS duration. Results The values of IVMD, Ts-SD and QRS duration were gradually increased as heart failure aggravated (P<0.05). No statistical difference was found in the proportion of QRS duration ≥120 ms among 3 groups (P=0.593). Compared with those in patients with QRS duration <120 ms, the values of IVMD, Ts-SD, LVEDd and BNP were all significantly higher, while LVEF level was lower in patients with QRS duration ≥120 ms, with statistical differences (P<0.05). Conclusion The left ventricular systolic synchrony in patients with varying degrees of ischemic heart disease is different, Therefore a comprehensively evaluation considering cardiac functions is necessary.