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Wheeless' Textbook of Orthopaedics
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Idiopathic Hypertrophic Subaortic Stenosis



- See: Aortic Stenosis

- Etiology: (familial inheritance)
    - no anatomic stenosis
    - anterior leaf of MV moves against Hypertrophied septum, blocking outflow;

- Sequelae:
      - sudden death is common;
      - L.V.H.
      - mitral valve dysfunction.

- Physical Exam:
      - pulse collapses w/ onset of mid-systolic murmur; (murmur heard best at lower left sternal border)
      - ejection click is not present.
      - carotid pulse: brisk rise from initial fast ejection, rapid drop.




Coronary Microvascular Dysfunction and Prognosis in Hypertrophic Cardiomyopathy

Sudden Death in Young Athletes.



















Original Text by Clifford R. Wheeless, III, MD.