Cardiomyopathy

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Related to Stress-Induced Cardiomyopathy: Takotsubo cardiomyopathy

cardiomyopathy

[¦kärd·ē·ō‚mī′äp·ə·thē]
(medicine)
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 It might be outdated or ideologically biased.

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

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Stress-induced cardiomyopathy has been previously reported to happen throughout the perioperative period as a result of an exaggerated adrenergic response to increased perioperative physical and emotional stress.
Epinephrine self-injection created in this patient an experimental model of transitory stress-induced cardiomyopathy and confirmed the adrenergic hypothesis of this syndrome.
Among 20 patients evaluated with echocardiography during status epilepticus, 8 had possible stress-induced cardiomyopathy that resolved following the episode.
Stress-induced cardiomyopathy, also known as takotsubo cardiomyopathy, is classically characterized by a stress-induced transient left ventricular apical systolic dysfunction, electrocardiographic (EKG) abnormalities, and modestly elevated cardiac enzymes, mimicking myocardial infarction, but in the absence of obstructive coronary artery disease (CAD).
We diagnosed her with recurrent Takotsubo stress-induced cardiomyopathy secondary to myasthenia crisis and treated her with 5 cycles of PLEX with complete resolution of the ST elevations (Figure 4) and troponemia and she was discharged to rehabilitation facility.
Stress-induced cardiomyopathy is a recently described acute and transient cardiomyopathy with left ventricular (LV) apical ballooning, mimicking the clinical scenario of acute myocardial infarction.
Called Tako-Tsubo syndrome, or stress-induced cardiomyopathy, it is a rare disease, which at first used to be confused with the far more common (and dangerous) cardiac infarction or heart attack.
First described in the 1990s, Takotsubo syndrome, also known as stress-induced cardiomyopathy and broken heart syndrome, is the acute, reversible onset of left ventricular (LV) dysfunction.
Classically, stress-induced cardiomyopathy (SIC), more commonly known as takotsubo cardiomyopathy, displays the pathognomonic feature of echocardiographic, reversible left ventricular apical ballooning without angiographic coronary artery stenosis occurring after a stressful event [1, 2].
Takotsubo cardiomyopathy, or stress-induced cardiomyopathy, is a recently described form of acute reversible heart failure of unknown origin.

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