Mitral Stenosis

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Contents

Etiology

  • Rheumatic heart disease
  • Mitral annular calcification
  • Cafergot toxicity
  • Hypereosinophilia
  • Vegetation


Assessment of Severity

  • Measure Peak Velocity with Cw
  • Measure Mean Velocity with Cw
  • Calculate MVA 220/ PHT (0.3 Deceleration Time)
  • Check Pulmonary Artery Pressure


Classification of Severity
Indicator Mild Moderate Severe
Mean Gradient (mm Hg) <5 5-10 >10
PA Pressure (mm Hg) <30 30 to 50 >50
Valve Area >1.5 1.0 to 1.5 <1.0

Splitability

  • Mobility
  • Leaflet Thickening
  • Subvalvular Thickening
  • Calcification
  • If splitatbility is less than 8 use balloon valvuloplasty

Indications for Surgery or Valvuloplasty

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