Tintinalli's Emergency Medicine: A Comprehensive Study Guide, 7e
|Section 7. Cardiovascular Disease >|
Chapter 59. The Cardiomyopathies, Myocarditis, and Pericardial Disease
Sections: The Cardiomyopathies, Myocarditis, and Pericardial Disease: Introduction, Cardiomyopathies with Systolic and Diastolic Dysfunction, Cardiomyopathies with Diastolic Dysfunction, Unexplained Heart Failure and Cardiomegaly: Principles of Evaluation, Pericardial Disease, References.
Topics Discussed: cardiomyopathy; myocarditis; pericardial disease.
Excerpt:"The term cardiomyopathy is used to describe
a heterogeneous group of diseases that directly alter cardiac structure,
impair myocardial function, or alter myocardial electrical properties.
Discoveries in molecular genetics and the description of (ion) channelopathies
as diseases have resulted in new definitions and classification
of cardiomyopathies.1 Some primary cardiomyopathies are
listed in Table 59-1. Secondary
cardiomyopathies include heart muscle diseases associated
with specific systemic disorders. They often present with hemodynamic
findings similar to those of the idiopathic dilated or restrictive
forms of cardiomyopathy. Some causes of secondary cardiomyopathies
are listed in Table 59-2. As a group, the
cardiomyopathies are the third most common form of cardiac disease
encountered in the U.S., following coronary (ischemic) heart disease
and hypertensive heart disease. Hypertrophic cardiomyopathy
(HCM) is the second most common cause of sudden cardiac death in
the adolescent population and the leading cause of sudden death
in competitive athletes.2..."
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