Impact of Procedural Success Definitions on Long‐Term Outcomes in Patients With Rheumatic Mitral Stenosis Treated With Percutaneous Balloon Mitral Valvuloplasty: A Multicenter, Retrospective Cohort Study

Background It is uncertain which percutaneous balloon mitral valvuloplasty (PBMV) success definitions should be used because there are no studies comparing the effects of these definitions on subsequent outcomes. We evaluated the association between 3 success definitions and long‐term clinical outcomes in patients with rheumatic mitral stenosis who underwent PBMV. Methods and Results This multicenter retrospective study included patients with severe rheumatic mitral stenosis who underwent PBMV. Three definitions were used as follows: (A) post‐PBMV mitral valve area (MVA) ≥1.5 cm2 or ≥50% increase in MVA with MR