There are P waves (+) with regular PP intervals and a rate of 85 beats/min. The P waves have a normal morphology; they are positive in leads I, II, aVF, and V4-V6. This is a stable normal sinus rhythm ...
Children with congenital complete atrioventricular block often require lifelong pacemaker therapy. Although such therapy restores a normal heart rate, it also results in dyssynchronous left ...