RT Book, Section A1 Maslow, Andrew A1 Shernan, Stanton K. A2 Mathew, Joseph P. A2 Swaminathan, Madhav A2 Ayoub, Chakib M. SR Print(0) ID 6918355 T1 Chapter 14. Echocardiographic Evaluation of Cardiomyopathies T2 Clinical Manual and Review of Transesophageal Echocardiography, 2e YR 2010 FD 2010 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-163476-2 LK accessanesthesiology.mhmedical.com/content.aspx?aid=6918355 RD 2024/04/19 AB Cardiomyopathy is generally defined as a “disease of the myocardium associated with cardiac dysfunction.”1 Primary cardiomyopathies are divided into four major classifications: (a) dilated cardiomyopathy (DCM), (b) hypertrophic cardiomyopathy (HCM), (c) restrictive (or infiltrative) cardiomyopathy (RICM), and (d) miscellaneous group including left ventricular non-compaction (LVNC), arrhythmogenic right ventricular dysplasia (AVRD), and Tako-tsubo cardiomyopathy. Each of the primary cardiomyopathies has distinctive morphological and functional characteristics even though they may present clinically in a similar fashion. The etiology of primary or idiopathic cardiomyopathies is not attributable to another systemic disease process. Alternatively, primary cardiomyopathies refer to primary diseases of the heart muscle (Table 14–1).