Fig. 1From: R-wave synchronised atrial pacing in pediatric patients with postoperative junctional ectopic tachycardia: the atrioventricular interval investigated by computational analysis and clinical evaluationR-wave synchronised atrial pacing by inverse connection of the pacing wires on an external dual chamber pacemaker. PM pacemaker, A atrial channel, V ventricular channel. With friendly permission [12, 15]Back to article page