Inter-Defect Septal Puncture Technique For Single Device Closure of Wide-Spaced Multi-Hole Atrial Septal Defect.

Closure of a wide-spaced multi-hole secundum atrial septal defect (MHASD) using a single occluder is difficult to accomplish. Multiple occluder implantation has risks such as incomplete endothelialisation, device embolisation, and residual shunt. Blade or balloon septotomy enables single device occlusion; however, the aforementioned may cause a short circumferential rim with subsequent device instability. This paper describes an inter-defect septal puncture technique for single device closure of different layouts of wide-spaced MHASDs via per-atrial or percutaneous approach under exclusive transoesophageal echocardiographic guidance. This technique combined with anti-tenting puncture equally befits a small caval atrial septal defect and MHASD with a floppy aneurysmal septum.