Management of nonsevere (MVA >1.5 m²) rheumatic mitral stenosis

MVA: mitral valve area; PAWP: pulmonary artery wedge pressure; PMBC: percutaneous mitral balloon commissurotomy; MR: mitral regurgitation; LA: left atrial; MS: mitral stenosis.

* PAWP is generally measured by pulmonary artery catheter. Mean mitral valve gradient is most commonly measured by Doppler echocardiography.

¶ The favorability of mitral valve morphology is based upon valvular and subvalvular features associated with successful PMBC (effective reduction of severity of MS without inducing/worsening MR). Refer to UpToDate content on scoring systems to assess the favorability of mitral valve morphology and other criteria for PMBC.