实时三维超声心动图评价房间隔缺损不同手术方式的右室收缩功能变化

目的 应用实时三维超声心动图(real-time three dimensional echocardiography, RT-3DE)研究房间隔缺损(atrial septal defect, ASD)不同手术方式右室收缩功能的变化.方法 ASD患者按照不同手术方式分为外科手术组和封堵组;常规二维超声心动图检查后,使用RT-3DE采集患者的右室全容积数据库,分析右室舒张末容量(right ventricular end diastolic volume, RVEDV)和收缩末容量(right ventricular end systolic volume, RVESV)、计算右室射血分数(right ventricular ejection fraction, RVEF).比较术前、术后7 d、术后3个月的RVEDV、RVESV、RVEF值变化.结果 术后7 d,封堵组右室RVEDV、RVESV均较术前明显减小(P＜0.05),RVEF值与术前无显著差异;外科手术组右室RVEDV较术前明显减小(P＜0.05),但RVESV较术前无统计学差异,并且EF值较术前减低(P＜0.05).术后3个月两组的RVEF值均较术前明显增高(P＜0.05).结论 RT-3DE能简便、准确地确定右室容积并计算右室收缩功能;ASD患者外科手术组术后早期右室收缩功能较术前减低, 术后3个月恢复到正常水平,封堵组术后初期EF值即达正常水平.

Real-time three dimensional echocardiography in evaluating right ventricular systolic function in atrial septal defect patients

Objective To evaluate right ventricular(RV)systolic function before and after different operation methods in the patients with atrial septal defect(ASD)by real-time three dimensional echocardiography(RT-3DE).Methods ASD patients were divided into two groups:heart surgery group and cardiac implant closure group.After conventional examination by two dimensional echocardiography(2DE),right ventricular Full Volume imaging was acquired by RT-3DE.Right ventricular end diastolic volume(RVEDV)and end systolic volum...