Multicenter nit-occlud® PDA-R patent. Ductus arteriosus occlusion device trial: initial and six-month results.

Background: Transcatheter closure of a moderate to large patent ductus arteriosus (PDA) using conventional techniques is challenging. The Nit-Occlud® PDA-R trial can close a PDA up to 8 mm in diameter. We sought to report procedural and six-month efficacy and safety results of the multicenter Nit-Occlud® PDA-R trial.