The application value of transthoracic echocardiography in perioperative period of transcatheter closure of ostium secundum atrial septal defects

Objective To evaluate the applied value of transthoracic echocardiography(TTE) in perioperative period of transcatheter closure of ostium secundum atrial septal defects(ASD).Methods Eighty six patients with ostium secundum ASD waiting for surgical treatment underwent TTE for pre-operative assessment of ASD size and rims on various views, selection of amplatzer septal occluder(ASO), monitoring setting and releasing of occluder in operation and post-operation follow-up.Results The size of ASD measured by TTE was 5～34(24.4±5.63)mm in 86 patients before operation, the size of selected occluder was 8～40(27.5±7.12)mm. Eighty-one cases were successfully treated with ASO(94.2%), including 2 cases with multiple ASD. Five patients with residual shunt were found immediately after the operation. During the 3 months follow-up,all residual shunts disappeared.Conclusion Transcatheter closure is a safe and effective method in patients with ostium secundum ASD. TTE have important clinical value in choice of ASD patients and the size of occluder device, monitoring setting and releasing of occluder in operation and evaluation of the treatment efficiency.