Termination of reentry by infra- and supra-threshold pulses

Two different experimental methods to terminate a reentrant activity were s tudied within the framework of nonlinear electronic circuits, which mimic t he discrete nature of cardiac tissue at a microscopic scale. It was shown t hat trains of low voltage (with infra- and supra-threshold stimulating ampl itude) and low Frequency (period larger than that of reentry) pulses can be used efficiently to terminate a pinned reentry when applied near to the re entry. (C) 2000 Elsevier Science Ltd. All rights reserved.