A second zone of compensation during atrial premature stimulation: evidence for decremental conduction in the sinoatrial junction.

Abstract

125 consecutive patients with premature atrial stimulation were studied. Three demonstrated sinus node return cycles that were fully compensatory following premature atrial stimuli delivered early in diastole. This second zone of compensation was unaccompanied by significant alterations in the post-return cycle lengths or in P-wave morphology of the return… (More)

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