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McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



(myocardosis), a term often applied to a broad group of heart diseases; specifically, noninflammatory lesions of the heart muscle (myocardium) resulting from a disturbance in myocardial metabolism. Among the causes of cardiomyopathy are nutritional disorders (alimentary dystrophy and avitaminosis, for example); protein metabolism disorders in hepatic or renal insufficiency and podagra; disturbances of carbohydrate metabolism (diabetes mellitus) and electrolyte metabolism; and endocrine disorders such as those associated with thyrotoxicosis and with hypoxia in impairment of coronary circulation, anemia, and mountain sickness. Myocardosis may also be caused by overstraining the myocardium and by exogenous poisons, such as carbon monoxide and alcohol.

In many cases the patient has no specific symptoms in the early stages; however, there may be shortness of breath and disagreeable sensations in the heart. Cardiomyopathy is manifested by dull, distant heart sounds, electrocardiographic changes, systolic murmur, extrasystole, and, more rarely, other types of arrhythmia. Severe cardiomyopathy weakens the heart contractions and may cause cardiac insufficiency. The changes associated with cardiomyopathy are usually reversible and disappear with the elimination of the underlying disease.

The cure includes treatment of the underlying disease and administration of agents that improve metabolic processes in the myocardium.


Kedrov, A. A. Bolezni myshtsy serdtsa. Leningrad, 1963.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Infantile restrictive cardiomyopathy resulting from a mutation in the cardiac troponin T gene.
Joyal et al., "The efficacy of brain natriuretic peptide levels in differentiating constrictive pericarditis from restrictive cardiomyopathy," Journal of the American College of Cardiology, vol.
Arrhythmias, valvulopathy, and restrictive cardiomyopathy are common complications.
Constrictive Pericarditis (CP) is characterised by scarring and loss of elasticity of the pericardium, resulting in external impedance of normal diastolic cardiac filling.1 Restrictive Cardiomyopathy (RC) is defined as a heart muscle disease that results in impaired ventricular filling, with normal or decreased diastolic volume of either or both ventricles.2 Differentiating between Constrictive Pericarditis and Restrictive Cardiomyopathy is a difficult clinical challenge that requires multiple diagnostic modalities, using haemodynamics, imaging and biopsy studies.
(Please see sidebar.) Two less common types of cardiomyopathy that can also lead to congestive heart failure are restrictive cardiomyopathy, caused by the excessive buildup of fibrous tissue in the ventricles, and dilated cardiomyopathy, which is characterized by a dilated and thin-walled, poorly contracting left ventricle.
Alpine "p" waves in a case of restrictive cardiomyopathy. Int J Cardiol 2011; Jan 14 (Epub ahead of print).
Stephen and Rachael were diagnosed with the hereditary disease restrictive cardiomyopathy after their mum, Mary, 44, a nurse and midwife, refused to believe both her children were simply suffering from tiredness.
She was diagnosed with a rare form of restrictive cardiomyopathy, and the next eight years were spent in andout of hospital as doctors struggled to keep her alive with operation after operation.
Here we are reporting a case of hypereosinophilic syndrome presenting as restrictive cardiomyopathy and eosinophilic gastritis, a high suspicion should be kept in mind for the above diagnosis when patient presents with hypereosinophilia.
And cardiomyopathy is not one single disorder, but instead a family of heart conditions that can be classified into three types: hypertrophic cardiomyopathy (HCM); dilated cardiomyopathy (DCM); and restrictive cardiomyopathy (RCM).
Jennifer, 23, was diagnosed with restrictive cardiomyopathy in her teens.
In normal individuals mitral E wave and Ea occurs simultaneously, where-as it was shown that in patients with restrictive cardiomyopathy peak velocity of Ea occurs after mitral E wave (32).