Inferior Vena Cava Compression as a Novel Maneuver to Detect Patent Foramen Ovale: AÂ Transesophageal Echocardiographic Study

IVC compression is feasible and effective for detecting PFO and is not inferior to the Valsalva maneuver. In particular, IVC compression could be an alternative diagnostic method for PFO using TEE when the Valsalva maneuver cannot be performed under deep sedation.