Transcatheter occlusion of residual patent ductus arteriosus after surgical ligation

The reported frequency of residual leaks after surgical ligation of patent ductus arteriosus (PDA) varies from 6% to 23%. Reports on percutaneous clos ure of PDA also involve patients with residual PDA after ligation, but spec ific data regarding this type of PDA are rare, Our objective was to assess retrospectively the characteristics of residual PDA relevant to transcathet er closure and occlusion results using three types of occluders, Twelve con secutive patients underwent transcatheter occlusion of residual PDA after s urgical ligation at a median age of 4.6 years (range 3.2-44.6 years) and me dian weight 16.5 kg (range 13-62 kg). Three types of occluder were used: Gi anturco coils, detachable Cook PDA coils, and the new Amplatzer duct occlud er. The median diameter of residual PDA after ligation was 1.5 mm (range 0. 9-4.2 mm). All PDAs were of type A morphology, Thirteen devices were succes sfully placed in the 12 patients, without embolization. There were no compl ications. At 1 month and 1 year follow-up all residual shunts were complete ly closed. Coils are particularly suitable for complete closure of residual leaks after surgical ligation of PDA. A 100% closure rate was achieved wit h a low number of implanted coils.