Resolution of Ortner's Syndrome Following Successful Mitral Transcatheter Edge-to-Edge Repair: The First Case Report.

Ortner's syndrome (OS), or cardiovocal syndrome, is an uncommon cause of hoarseness caused by recurrent laryngeal nerve palsy due to compression from underlying cardiovascular disease. It is classically associated with left atrial enlargement due to rheumatic mitral stenosis and, less frequently, severe mitral regurgitation. We present the case of an 82-year-old man with progressive dyspnea and hoarseness who was found to have severe mitral regurgitation and marked left atrial dilation. Following successful transcatheter edge-to-edge mitral repair, he experienced significant improvement in cardiac symptoms and vocal quality. To the best of our knowledge, this is the first reported case of OS resolving after transcatheter mitral edge-to-edge repair.