Explantation of Two Embolized Balloon-Expandable Valves in Left Atrium After Transcatheter Mitral Valve Replacement.

An 81-year-old man with a history of transcatheter aortic valve replacement for severe aortic stenosis presented with dyspnea on exertion and moderate-severe mitral stenosis. He underwent transcatheter mitral valve replacement (TMVR) through a transseptal approach, given his age and comorbidities. The TMVR procedure was complicated by 2 embolized TMVR valves into the left atrium, requiring urgent transfer to the operating room for exploratory cardiotomy. The embolized valves were explanted from the left atrium successfully without additional mitral valve intervention. Intraoperative transesophageal echocardiography revealed improved mitral stenosis from severe to mild level after TMVR valve deployments. He was discharged home on postoperative day 10.