PMID: 40059Sep 1, 1979

Effect of blockaders of cardiac beta-adrenergic structures on the central hemodynamics and contractile function of the myocardium in acute experimental coronary insufficiency

Kardiologiia
L I Ol'binskaiaN A Trekova

Abstract

The indices of central hemodynamics and myocardial contractile function were studied in 35 dogs before and in different periods after the administration of drugs which block beta-receptors: propranolol, pindolol, and talinolol. The drugs blocking the beta-adrenergic receptors were administered against the background of an intact myocardium to 15 dogs and against the background of acute coronary insufficiency to another 15; acute ischemia was induced in 5 dogs to which the drugs were not given. It was established that beta-adrenergic blocking agents have a beneficial effect in the acute stage of myocardial ischemia; they exert a marked influence on the consumption of oxygen by the myocardium, intramyocardial tension, and the contractile capacity and rhythm of the heart. Talinolol produced the most favourable effect.

Related Concepts

Acute Disease
Adrenergic beta-Antagonists
Metazoa
Coronary Heart Disease
Canis familiaris
Medicinal Plants Testing, Preclinical
Hemodynamics
Myocardial Contraction
Myocardial Infarction

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