Abstract
Tricuspid regurgitation (TR) is the most common lesion of the tricuspid valve. The study aimed to investigate the characteristics of tricuspid regurgitation on transthoracic echocardiography in patients with reduced ejection fraction, as well as the relationship between tricuspid regurgitation and echocardiographic parameters. Methods: 113 patients with heart failure symptoms at Bach Mai hospital were selected for the study. Echocardiography was performed after admission. Echocardiographic results with basic parameters of TR and factors related to TR level in heart failure patients with reduced ejection fraction. Results: 88 out of 113 patients had central tricuspid regurgitation (77.9%). Eccentric TR was more common in moderate-severe TR. The severe TR had left ventricular (LV) diastolic dysfunction and right ventricular (RV) systolic and diastolic dysfunctions. Conclusions: Tricuspid regurgitation in heart failure patients with reduced ejection fraction are mainly mild TR with central regurgitation pattern. Atrial fibrillation, right ventricular dilatation, pulmonary hypertension, and severity of mitral regurgitation are independently factors associated with the severity of tricuspid regurgitation.