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Functional Mitral Stenosis After Mitral Valve Repair for Type II Dysfunction: Determinants and Impacts on Long-Term Outcome
The authors reviewed their experience with 602 patients who underwent mitral repair for type II mitral regurgitation. Mitral stenosis was defined as a mean transmitral pressure gradient (MTPG) of > 5 mm Hg, and 51 patients (8.5%) had mitral stenosis by this criterion. The authors found on postoperative echocardiography that annuloplasty with a smaller-sized ring was associated with a higher MTPG, PA pressures, residual TR gradient, and incidence of new-onset atrial fibrillation.