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Causes and clinical features of Acute Mitral regurgitation

What are the causes of acute mitral regurgitation
  • Infective endocarditis
  • Acute rheumatic fever
  • Mitral valve prolapse
  • Marfan syndrome
  • Myocardial ischemia
  • Trauma
  • Idiopathic
  • Prosthetic valve dysfunction
What is the clinical presentation of acute MR ?
Acute pulmonary oedema
What are the clinical signs of acute MR ?
Acute mitral regurgitation produces a set of clinical sign different from chronic mitral regurgitation
  • Tachycardia 
  • Hypotension
  • A wave / v wave in JVP
  • Absence of cardiomegaly
  • Forcible apex
  • Palpable P2
  • Thrill present
  • Left parasternal heave present
  • Loud P2
  • LV S3, S4
  • Loud descrendo murmur at the apex

So the striking differences are in blood pressure, absence of cardiomegaly, pulmonary artery, hypertension(PAH), left ventricular S4 (LVS4) and decrescendo murmur