Optical Mapping of Tachycardia-Like Excitation Evoked by Pacing in the Isolated Rat Atrium
Jpn J Physiol Vol.54, No.6 pp.593-599
Abstract: Multiple-site optical recording of membrane potential activity using a voltage-sensitive dye was employed to monitor action potentials in the rat atrium. Electrical pacing at 1 Hz evoked the events of tachycardia-like excitation (TE). Optical mapping revealed that a coupling of spontaneous and evoked action potentials resulted in the initiation of TE.
Department of Physiology, Tokyo Medical and Dental University Graduate School and Faculty of Medicine, Tokyo, 113-8519 Japan. tsakai@med.u-ryukyu.ac.jp
Copyright© 2007 by The Physiological Society of Japan