Transcatheter closure of patent ductus arteriosus: Evaluating the effect of the learning curve on the outcome Azhar AS et al. - Transcatheter occlusion of PDA is safe and effective alternative to surgery. Complications occurred in those with unfavorable duct anatomy and with the use of multiple coils. Surgical backup was important for such interventional procedures. Experience played a major role in the proper choice of device type and size which greatly influenced the outcome of the procedure. [more...]