Stephen J. Schueler, M.D.

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Idiopathic Hypertrophic Subaortic Stenosis Overview

Another name for Idiopathic Hypertrophic Subaortic Stenosis is Hypertrophic Cardiomyopathy.

What is hypertrophic cardiomyopathy?
A person with hypertrophic cardiomyopathy has abnormal thickening in the heart muscle, which interferes with blood flow through the heart. Hypertrophic cardiomyopathy is an inherited illness. In most cases, the person is unable to tolerate intense exercise. Hypertrophic cardiomyopathy is a leading cause of sudden death in athletes. Symptoms of hypertrophic cardiomyopathy usually develop prior to age 40.

What are the symptoms of hypertrophic cardiomyopathy?
Early symptoms of hypertrophic cardiomyopathy include cough, weakness, and fatigue. Symptoms of worsening hypertrophic cardiomyopathy include leg swelling, weight gain, difficulty breathing when lying flat, increasing shortness of breath with activity, and waking in the middle of the night short of breath.

How does the doctor treat hypertrophic cardiomyopathy?
Treatment for hypertrophic cardiomyopathy may include regular exercise, a healthy heart diet, a low salt diet, and medications to improve heart function. Additional treatment may include a heart pacemaker and heart surgery. Some patients may be candidates for a heart and lung transplant.

Continue to Idiopathic Hypertrophic Subaortic Stenosis Incidence

Last Updated: Aug 19, 2010 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Idiopathic Hypertrophic Subaortic Stenosis References
  1. Abbas AE, Brewington SD, Dixon SR, Grines CL, O'Neill WW. Alcohol septal ablation for hypertrophic obstructive cardiomyopathy. J Interv Cardiol. 2005 Jun;18(3):155-62. [15966918]
  2. Frias PA. Hypertrophic cardiomyopathy and arrhythmogenic right ventricular dysplasia in young patients. Semin Pediatr Neurol. 2005 Mar;12(1):25-31. [15929462]
  3. Maron BJ. Hypertrophic cardiomyopathy: a systematic review. JAMA. 2002 Mar 13;287(10):1308-20. [11886323]
  4. Sherrid MV, Barac I, McKenna WJ, Elliott PM, Dickie S, Chojnowska L, Casey S, Maron BJ. Multicenter study of the efficacy and safety of disopyramide in obstructive hypertrophic cardiomyopathy. J Am Coll Cardiol. 2005 Apr 19;45(8):1251-8. [15837258]
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