Aspectos particulares da oclusão percutânea do canal arterial do adulto

BACKGROUND: Percutaneous closure of patent ductus arteriosus is a safe, effective and easily reproducible method. Adult patent ductus arteriosus may present degenerative changes that increase surgical risk and favor percutaneous closure. We report a single center experience with percutaneous closure of patent ductus arteriosus in adults and highlight specific technical aspects of this procedure. METHODS: The records of patients > 20 years of age submitted to patent ductus arteriosus closure between March 2001 and December 2012 were evaluated. Cases were selected by transthoracic echocardiography. RESULTS: We analyzed 33 patients, most of them females (72.7%), with mean age of 30.9 ± 12.8 years and weight of 63.9 ± 12.4 kg. Only 3 patients had symptoms and 2 had associated congenital defects, treated in the same procedure. Implants were possible in all cases. One Flipper Coil, 19 AmplatzerTM Duct Occluders type I, 3 AmplatzerTM Duct Occluders type II, 8 CeraTM PDA Occluders and 2 Muscular VSD devices were used. Sizing balloons were used in 5 cases. Mean follow-up was 46.1 ± 42.9 months and was obtained in 84.9% of patients. Two cases presented residual shunts immediately after the procedure. There were no major complications or deaths. CONCLUSIONS: Percutaneous closure of adult patent ductus arteriosus may be performed safely and effectively with the devices used in this study.