RT Book, Section A1 Goldstein, James A. A2 Crawford, Michael H. SR Print(0) ID 57955293 T1 Chapter 24. Restrictive Cardiomyopathy T2 CURRENT Diagnosis & Treatment Cardiology, 4e YR 2014 FD 2014 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-180127-0 LK accesscardiology.mhmedical.com/content.aspx?aid=57955293 RD 2023/03/25 AB Predominant biventricular diastolic dysfunction with lesser impairment of systolic performance.Symptomatic presentation: Chronic biventricular “backward failure” manifest as dyspnea and peripheral edema (often hepatomegaly and ascites).Reduced preload limits cardiac output (fatigue).Echocardiography: small stiff ventricles, preserved systolic function (until late stages), dilated atria and diastolic dysfunction by Doppler.Many disorders manifest restrictive “physiology” and must be excluded (eg, hypertrophic cardiomyopathy and constrictive pericarditis).Cardiac magnetic resonance imaging powerful: delineates myocardial infiltration, inflammation, and fibrosis and assesses pericardium, thereby helping establish underlying disorder.Tissue biopsy may be necessary for definitive diagnosis in some disorders (eg, amyloidosis).