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Heart murmur (mid-diastolic)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Mid diastolic murmurs:

  • mitral stenosis - maximal at the apex with the patient inclined to the left. The murmur begins after the opening snap. The murmur is long if severe and short if mild.
  • tricuspid stenosis - maximal at the lower left sternal edge. The murmur is increased by inspiration.
  • a murmur mimicking mitral stenosis may occur when there is greatly increased flow across the mitral valve. This may occur in mitral regurgitation, VSD, patent ductus, or, a hyperdynamic circulation e.g. thyrotoxicosis.

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