Cardiomyopathy

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cardiomyopathy

[¦kärd·ē·ō‚mī′äp·ə·thē]
(medicine)

Cardiomyopathy

 

(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.

REFERENCE

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

N. R. PALEEV

References in periodicals archive ?
Therefore, further larger randomized studies should be undertaken to investigate the morbidity and mortality benefits of ivabradine in patients with idiopathic dilated cardiomyopathy.
Based on the results of the current study, we concluded that the use of ivabradine in patients with idiopathic dilated cardiomyopathy and sinus rhythm is effective and safe.
The alpha(2C) Del322-325 adrenergic receptor polymorphism is not associated with heart failure due to idiopathic dilated cardiomyopathy in black Africans.
Novel mutation in cardiac troponin I in recessive idiopathic dilated cardiomyopathy.
Conclusion: We have shown that patients with idiopathic dilated cardiomyopathy and angiographically normal coronary arteries have higher TIMI frame counts for all three coronary vessels, indicating impaired coronary blood flow, compared to control subjects without dilated cardiomyopathy.
Measuring serum aminoterminal type III procollagen peptide, 7S domain type IV collagen, and cardiac troponin T in patients with idiopathic dilated cardiomyopathy and secondary cardiomyopathy.
Value of time- and frequency-domain analysis of signal-averaged electrocardiography for arrhythmia risk prediction in idiopathic dilated cardiomyopathy.
Myocardial cTnI is -60% lower in small mammals compared with large mammals and 30% lower in dogs with heart failure because of idiopathic dilated cardiomyopathy compared with those with nonfailing hearts.
In 137 patients with idiopathic dilated cardiomyopathy, Hohnloser et al.
In the present study, we aimed to assess serum concentrations of selenium (Se), zinc (Zn) and copper (Cu) in patients with heart failure (HF) and to compare idiopathic dilated cardiomyopathy (IDCM) and ischemic cardiomyopathy (ICM) patients with healthy controls.

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