... ventricular lead passing inferior without a bendas if into the floor of the right atrium and fits nicely with the accompany-ing schematic. Depending on its position in the ventricle, the lead tip may ... formyocardial dysfunction, including patients with congenital heart block,biventricular pacing did prove to be effective in improving symptoms andfunction [128, 129]. However, in patients with normal or ... Preventing bradycardia-induced afterpotentials [145].What type of pacemaker should be implanted? In theory, the object-ive should be to increase the heart rate by atrial pacing alone, thusavoiding...