Disorder in excitation-contraction coupling of cardiac muscle from cats with experimentally produced right ventricular hypertrophy.

Abstract

The contractile and electrical activity of papillary muscles from hypertrophied right ventricles of cats with artificial stenosis of the pulmonary artery was investigated. Contractility was considerably decreased along the entire forcevelocity relationship, whereas no measurable alterations could be detected in the electrical activities as recorded by… (More)

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