Transcatheter closure of secundum atrial septal defect with Cardio SEAL septal occluder: a preliminary result of clinical application
2001
Objective To evaluate the efficiency and preliminary results of transcatheter closure of secundum atrial septal defect (ASD) with CardioSEAL septal occluder. Methods There were 12 patients in this study. Transesophageal echocardiography (TEE) before the interventions confirmed the ASDs with a mean diameter of (13.14±3.48) mm (ranging from 8 to 20 mm). There were 11 isolated ASDs and 1 multi defects ASD in the group. Each ASD was occluded with CardioSEAL septal occluder through the percutaneous procedure. The closure procedure was guided by fluoroscopy and transesophageal echocardiography. The TEE was done immediately after the procedure to find whether there was residual shunt. Transthoracicechocardiography (TTE), ECG, and X ray examination were done 24 hours, 1 month, 3 months, and 1 year after the procedures as follow up to evaluate the efficiency. Results The placements of the occluders were successful in 11 cases. There were no mortality and no emergent surgery during the procedures. TEE confirmed that there were trivial and small residual shunts in 3 cases immediately after the procedures. TTE confirmed small residual shunts in 2 cases 24 hour after the procedures, and in 1 case 1 month, 3 month, and 1 year after the procedures. Conclusion Transcatheter closure of secundum ASD with CardioSEAL septal occluder was an efficient nonsurgical method. It could be the method of choice in treating the ASDs with special anatomic variations. It had a high successful rate of device placement and satisfied preliminary results, but the long term follow up was needed.
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