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Cardiac and pulmonary causes of syncope

Authoring team

Causes include:

  • left ventricular outflow obstruction:
    • aortic stenosis
    • hypertrophic obstructive cardiomyopathy

  • pulmonary flow obstruction:
    • pulmonary stenosis
    • primary pulmonary hypertension
    • pulmonary embolism

  • myocardial - MI with pump failure

  • pericardial - cardiac tamponade

  • atrial myxoma

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