Smarter Decisions,
Better Care
UpToDate synthesizes the most recent medical information into evidence-based practical recommendations clinicians trust to make the right point of care decisions.
For more information, click below.
Subscribers log in here
Related articles
| AuthorsPerry M Elliott, MDWilliam J McKenna, MD | Section EditorsSamuel Lévy, MDBernard J Gersh, MB, ChB, DPhil, FRCP, MACC | Deputy EditorBrian C Downey, MD, FACC |
Topic Outline
INTRODUCTION
Hypertrophic cardiomyopathy (HCM) is a genetically determined heart muscle disease most often (60 to 70 percent) caused by mutations in one of several sarcomere genes which encode components of the contractile apparatus. (See "Genetics of hypertrophic cardiomyopathy".)
HCM is characterized by left ventricular hypertrophy of various morphologies, with a wide array clinical manifestations and hemodynamic abnormalities (figure 1) . Depending in part upon the site and extent of cardiac hypertrophy, HCM patients can develop one or more of the following abnormalities:
These structural and functional abnormalities can produce a variety of symptoms, including:
Subscribers log in here