Related Experiment Video
Updated: Jun 20, 2026

Closure of a Patent Foramen Ovale (PFO): An Intervention Sequence
Published on: December 23, 2022
Transcatheter patent foramen ovale closure: a treatment for refractory hypoxaemia
Dirk Faes1, Raymond Gilles, Joelle Kefer
1Division of Cardiology, Department of Cardiovascular Diseases, Cliniques Universitaires St. Luc, Université Catholique de Louvain, Brussels.
Abstract:
Right-to-left intracardiac shunt through a patent foramen ovale sometimes induces a significant arterial oxygen desaturation. We describe two cases of severe hypoxia due to a patent foramen ovale, treated successfully by transcatheter closure of the intracardiac shunt. One case occurred after implantation of a cardiac assist device, the other patient presented with a platypnoeaorthodeoxia syndrome. Clinical considerations are outlined.
More Related Videos
Related Concept Videos
Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue, improving...
Angle Closure Glaucoma: Treatment

