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Aortic causes

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Left ventricular ejection murmurs are maximal at the aortic area, lower left sternal edge and apex. Possible causes include:

  • aortic stenosis (valvar, subvalvular, supravalvular)
  • hypertrophic obstructive cardiomyopathy
  • increased stroke volume e.g. ASD
  • aortic cusp sclerosis
  • bicuspid aortic valve with no obstruction
  • coarctation of the aorta – a coarctation murmur, when heard anteriorly, can be confused with an ejection murmur
  • post-valvular dilation e.g aortic aneurysm, hypertension

An ejection systolic murmur may occur in aortic regurgitation due to increased blood flow.

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