RESUMO
Objective To assess the right ventricular function in pulmonary hypertension (PH) patients according to their tricuspid annular plane systolic excursion.Methods Ninety PH patients admitted to our hospital from October 2014 to September 2015 were divided into mild PH group (n=30),moderate PH group (n=30) and severe PH group (n=30) with 30 individuals undergoing physical examination served as a control group.Their right ventricular transverse diameter,right atrial transverse diameter,main pulmonary artery diameter,and respiration variations of inferior vena cava,tricuspid annular plane systolic excursion of right ventricular free wall were measured by ultrasonography.Results The right ventricular transverse diameter,right atrial transverse diameter,main pulmonary artery diameter were significantly longer and the suction collapse rate was significantly lower in mild PH group,moderate PH group and severe PH group than in control group (P＜0.05,P＜0.01).The tricuspid annular plane systolic excursion was significantly shorter in moderate PH group and severe PH group than in control group (12.9± 3.2 cm,10.1±3.1 cm vs 23.4±2.2 cm,P＜0.01).However,no significant difference was found in tricuspid annular plane systolic excursion between moderate PH group and control group (P＞ 0.05).Conclusion The tricuspid annular plane systolic excursion is shorter and the right ventricular function is lower in PH patients.Tricuspid annular plane systolic excursion can sensitively show the right ventricular function in PH patients and is thus a reliable predictor for their right ventricular function.
RESUMO
Objective To assess the right ventricular function in pulmonary hypertension (PH) patients according to their tricuspid annular plane systolic excursion.Methods Ninety PH patients admitted to our hospital from October 2014 to September 2015 were divided into mild PH group (n=30),moderate PH group (n=30) and severe PH group (n=30) with 30 individuals undergoing physical examination served as a control group.Their right ventricular transverse diameter,right atrial transverse diameter,main pulmonary artery diameter,and respiration variations of inferior vena cava,tricuspid annular plane systolic excursion of right ventricular free wall were measured by ultrasonography.Results The right ventricular transverse diameter,right atrial transverse diameter,main pulmonary artery diameter were significantly longer and the suction collapse rate was significantly lower in mild PH group,moderate PH group and severe PH group than in control group (P＜0.05,P＜0.01).The tricuspid annular plane systolic excursion was significantly shorter in moderate PH group and severe PH group than in control group (12.9± 3.2 cm,10.1±3.1 cm vs 23.4±2.2 cm,P＜0.01).However,no significant difference was found in tricuspid annular plane systolic excursion between moderate PH group and control group (P＞ 0.05).Conclusion The tricuspid annular plane systolic excursion is shorter and the right ventricular function is lower in PH patients.Tricuspid annular plane systolic excursion can sensitively show the right ventricular function in PH patients and is thus a reliable predictor for their right ventricular function.