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[Myocardium in acute and chronic experimental alcoholic intoxication]
Arkhiv Patologii
|January 1, 1982
Summary
Alcoholic cardiomyopathy develops in both acute and chronic alcohol poisoning, leading to heart failure. Chronic exposure causes progressive heart dysfunction and damage due to ethanol
Area of Science:
- Cardiology
- Toxicology
- Pathology
Background:
- Alcoholic cardiomyopathy is a significant health concern.
- Understanding the functional-morphological changes in the myocardium is crucial.
Purpose of the Study:
- To investigate the effects of acute (AAP) and chronic (CAP) alcoholic poisoning on rat myocardium.
- To elucidate the mechanisms underlying alcoholic cardiomyodystrophy.
Main Methods:
- Study of myocardium in 90 randombred rats subjected to AAP and CAP.
- Functional-morphological analysis of heart ventricles.
Main Results:
- Both AAP and CAP induce functional-morphological changes indicative of alcoholic cardiomyodystrophy.
- AAP leads to acute cardiac insufficiency, primarily due to bioenergetic disturbances and impaired microcirculation.
- CAP results in progressive contractile dysfunction, conductivity issues, cardiosclerosis, and sarcoplasmic reticulum dysfunction.
Conclusions:
- Alcoholic cardiomyodystrophy presents differently in acute and chronic poisoning.
- Ethanol's direct toxic effects, microcirculation disorders, hypoxia, and metabolic disturbances contribute to cardiac damage.
- Sarcoplasmic reticulum dysfunction plays a role in reduced heart contractility.