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目的:应用超声心动图评价房间隔缺损(ASD)封堵术前后左、右心室功能的变化。方法:对62例成功施行经皮穿刺ASD封堵术的患者进行研究。所有患者在术前、术后1周及1个月分别进行超声心动图检查,观察心脏大小及功能的改变。结果:ASD封堵术后,左室舒张末期前后径、左室舒张末期容积、左室每搏量及左室射血分数增大,而左室收缩末期容积未见明显改变;右室舒张末期前后径、右室舒张末期容积、右室收缩末期容积、右室每搏量、右室射血分数及右室心肌工作指数均减小。结论:经皮穿刺ASD封堵治疗既可减轻右室容量负荷,改善右室功能,也可改善左室的收缩功能;超声心动图对ASD封堵前后心脏血流动力学评价及疗效的观察起了重要的作用。
Objective: To evaluate the changes of left and right ventricular function before and after atrial septal defect (ASD) occlusion by echocardiography. Methods: Sixty-two patients successfully treated with percutaneous ASD closure were studied. All patients underwent echocardiography preoperatively, 1 week and 1 month after operation to observe the changes of heart size and function. Results: After ASD occlusion, left ventricular end-diastolic anteroposterior diameter, left ventricular end-diastolic volume, left ventricular stroke volume and left ventricular ejection fraction increased, while left ventricular end-systolic volume did not change significantly. Anteroposterior diameter, right ventricular end-diastolic volume, right ventricular end systolic volume, right ventricular stroke volume, right ventricular ejection fraction and right ventricular myocardial work index decreased. Conclusion: Percutaneous ASD can reduce the volume load of right ventricle, improve the function of right ventricle and the systolic function of left ventricle. The echocardiographic evaluation of cardiac hemodynamics before and after ASD occlusion and its curative effect An important role.