Hypertrophic Cardiomyopathy for Professionals
Hypertrophic cardiomyopathy or HCM is a primary myocardial disorder defined by left ventricular (LV) hypertrophy that cannot be explained by another cardiac or systemic disease. People with HCM face a risk of death more than 3 times greater than the average person of the same age without HCM.
Patients diagnosed with HCM are at increased risk for developing atrial fibrillation, suffering from stroke and even sudden cardiac arrest. It is estimated that 1 in every 500 people have HCM, but a large percentage of patients are undiagnosed. Learning more about HCM will ensure you are better able to discuss its impact with your patients.

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With your help, patients whose lives have been restricted due to HCM may be able to reduce symptoms and comorbidities. Register today and increase your knowledge of the latest HCM science.

Hypertrophic Cardiomyopathy Podcast Series @Model.Item.RenderHeadingSizeTag("h2")>
Enhance and expand your understanding of hypertrophic cardiomyopathy so you are better able to discuss its impact with your patients. Listen, learn, and increase your knowledge of the latest HCM science.
Guidelines and Articles
- 2020 AHA/ACC Guidelines for the Diagnosis and Treatment of Patients with Hypertrophic Cardiomyopathy Circulation. November 2020.
- Gersh BJ, et al. 2011 ACCF/AHA Guideline for the Diagnosis and Treatment of Hypertrophic Cardiomyopathy: Executive Summary: A Report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. Circulation. 2011;124:2761-2796.
- Yield of Clinical Screening for Hypertrophic Cardiomyopathy in Child First-Degree Relatives Evidence for a Change in Paradigm. Circulation, June 2020.
- Cardiomyopathy in Children: Classification and Diagnosis. Circulation, June 2020.
- Maron BJ. Hypertrophic Cardiomyopathy. Circulation. 2002;106:2419-2421.
News
- 2020 AHA/ACC Guideline for the Diagnosis and Treatment of Patients With Hypertrophic Cardiomyopathy AHA Science News
- Hypertrophic Cardiomyopathy Guideline Encourages Shared Decision-Making - AHA Press Release
- Hypertrophic Cardiomyopathy Guideline Encourages Shared Decision-Making - AHA Press Release
- Deadly heart problem might not be so deadly AHA News, 2019.
- Genetic testing helps family uncover inherited heart condition AHA News, 2019.
HCM Patients
When patients present with symptoms such as fatigue, fainting, shortness of breath, chest pain or heart palpitations without a known cause, suspect and test for HCM. With your help, patients whose lives have been restricted due to HCM may be able to reduce symptoms and comorbidities.

AHA Guidelines On-The-Go mobile app
Access the 2020 AHA/ACC Guideline for the Diagnosis and Treatment of Patients with Hypertrophic Cardiomyopathy and other guidelines on your mobile device anytime, anywhere! Download our free mobile app today and enjoy the benefits of staying up-to-date no matter where you are. Actionable at the point of care, users will be able to retrieve relevant pieces of content while also having access to additional support detail and evidence.
2018 Prevention Guidelines Tool CV Risk Calculator
This risk calculator tool is used to calculate your patients’ risk for heart disease and stroke using the 2018 ACC/AHA guidelines.
American Heart Association's Hypertrophic Cardiomyopathy Initiative is sponsored by MyoKardia, Inc.