Adrenergic control of the force-frequency and relaxation-frequency relations in patients with hypertrophic cardiomyopathy.

Abstract

BACKGROUND Exercise-induced enhancement of the force-frequency and relaxation-frequency relations has been studied in conscious animals but not in intact diseased human hearts. METHODS AND RESULTS We evaluated left ventricular (LV) isovolumic contraction (dP/dt(max)) and relaxation (tau) during atrial pacing and dynamic exercise in 13 patients with… (More)

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@article{Izawa1997AdrenergicCO, title={Adrenergic control of the force-frequency and relaxation-frequency relations in patients with hypertrophic cardiomyopathy.}, author={Hideo Izawa and Mitsuhiro Yokota and Yasuhiro Takeichi and Masanori Inagaki and K-i Nagata and Masanori Iwase and Tomotaka Sobue}, journal={Circulation}, year={1997}, volume={96 9}, pages={2959-68} }