II. Pathophysiology

  1. Abnormal flow in artery generates eddies
  2. Results in Arterial wall vibration

III. Causes

  1. Tortuous arteriosclerotic vessels
  2. Constricted arteries
    1. Congenital
    2. Intimal proliferation
    3. Arteriosclerotic Plaque
  3. Arterial aneurysm
  4. Thyroid artery dilatation
  5. Arteriovenous Fistula
  6. Aortic Coarctation with large collaterals

IV. Technique

  1. Auscultate with bell chest piece lightly held to skin

V. Signs

  1. Systolic Murmur auscultated over artery
  2. Thrill palpable over affected artery

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