Why the study?
Intracellular Ca2+ overload is a common mechanism of severe myocardial fiber injury and death under various pathological conditions, and the protective role of Ca2+ antagonists in preventing excessive Ca2+ entry needs clarification.
Do calcium antagonists protect myocardial cell integrity from intracellular calcium overload?
Population
Myocardial fibers under conditions causing intracellular Ca2+ overload including catecholamine overdose, hypoxia, ischemia, and hereditary cardiomyopathy
Comparison
Calcium antagonists versus uncontrolled calcium entry
Design
Review of experimental observations
Authors
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Supports mechanistic rationale in experimental models; leaves open clinical translation to patient outcomes.
Do calcium antagonists protect myocardial cell integrity from intracellular calcium overload?
This review outlines the fundamental pathophysiological mechanism of intracellular calcium overload in myocardial injury and the protective cellular role of calcium antagonists.
Fleckenstein et al. (1983) studied this question.
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