We report a patient who presented with pericardial tamponade 9 months after percutaneous closure of a patent foramen ovale using a BioSTAR septal closure device (NMT Medical, Boston, MA). During the operation, bleeding was observed on the posterior aortic root caused by a nonendothelialized strut. The device was explanted, followed by pericardial patch aortoplasty and patch closure of the patent foramen ovale. This report presents a case of late tamponade related to the new-generation bioabsorbable BioSTAR device. Although late complications related with BioSTAR are rare, the presentation may be dramatic. A high index of suspicion and quick intervention is often lifesaving.