Abstract
A teen-age girl with a 5 year history of PEO was noted to have a progressive disturbance of atrioventricular conduction with LAD, RBBB, and intermittent second degree heart block of Mobitz type II. His bundle recordings revealed a prolongation of the H-V conduction time interval and the development of Mobitz type II second degree block following atropine administration. A permanent demand cardiac pacemaker was implanted and successfully paced the patient during episodes of complete heart block which subsequently developed. A teen-age girl with a 5 year history of PEO was noted to have a progressive disturbance of atrioventricular conduction with LAD, RBBB, and intermittent second degree heart block of Mobitz type II. His bundle recordings revealed a prolongation of the H-V conduction time interval and the development of Mobitz type II second degree block following atropine administration. A permanent demand cardiac pacemaker was implanted and successfully paced the patient during episodes of complete heart block which subsequently developed.
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