Clinical Application of Domestic Occluder Device for Transcatheter Closure of PDA / 昆明医科大学学报

ABSTRACT

Objective To evaluate the efficiency of transcatheter closure of PDA using domestic occluder device.Methods Thirteen two patients(male 11,female 21) with PDA were treated by transcatheter closure of PDA with domestic occluder device. The mean age of patients was 14.4?9.8 years (ranged from 1.8 to 39 years old). PDA were shown by transethroracic echocardiography (TTE) before interventions. Each case was treated with domestic occluder device through the percutaneous procedure under fluoroscopy and TTE. After the procedure,TTE were performed immediately to find whether there any residual shunt remained. Transthoracic echocardiography (TTE) and X-ray examination were done 24-hour, 1-month, 3-month and 6-month after the procedure to evaluate the efficiency.Results The success rate of placement of domestic occluder was 100%. Thoracic angiography showed that 18 patients had complete immediate closure and one had a small residual shunt after the operation. Residual shunt was found in four case after the operation. X-ray examination and TTE showed that both pulmonary vascularity and heart size were improved.Conclusions Transcatheter closure of PDA using domestic occluder device is an efficient nonsurgical method for patients of any age group. The operation is simple and safe with a high success rate of placement and a good occlusion effect. The long-term follow-up remains to be studied.