Why the study?
Does partial coronary artery constriction induce regional myocardial dysfunction and hemodynamic abnormalities during strenuous exercise in dogs?
Population
12 conscious dogs
Comparison
Partial circumflex coronary artery constriction… vs Control runs
Design
Preclinical
Authors
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Exercise unmasks regional dysfunction despite normal rest in stenosis; hypothesis-generating for wall motion as ischemia marker, needs clinical validation.
Does partial coronary artery constriction induce regional myocardial dysfunction and hemodynamic abnormalities during strenuous exercise in dogs?
Strenuous exercise in the presence of coronary stenosis induces rapid, severe regional myocardial dysfunction, suggesting abnormal regional wall motion is a specific indicator of limited coronary reserve.
Tomoike et al. (1978) studied this question.
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