The action-potential duration and contractile response of the intact heart related to the preceding interval and the preceding beat in the dog and cat

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RESUMO

1. Simultaneous measurements were made in anaesthetized dogs of monophasic action potentials from the right ventricle and of the maximum rate of rise of left ventricular pressure (dPlv/dtmax). Atrio-ventricular dissociation was induced and the heart paced via right ventricular electrodes.

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