Compensatory accessory pathway for complete atrioventricular block: 28-year follow-up.
We report a case of atrioventricular (AV) block diagnosed 28 years ago compensated by a functional accessory pathway. During follow-up, the accessory pathway conduction properties at rest deteriorated while the refractory properties were unchanged. At 46 years, the patient became symptomatic from bradycardia and a dual-chamber pacemaker was implanted. Although rare, concealed AV block due to an accessory pathway has to be recognized before radiofrequency ablation.
Sacher
Frédéric
F
The Hôpital Cardiologique du Haut-Lévêque, Bordeaux-Pessac, France. frederic.sacher@chu-bordeaux.fr
Douard
Hervé
H
Wright
Matthew
M
Vircoulon
Bernard
B
Broustet
Jean-Paul
JP
D054537:Atrioventricular Block / Q000151:congenital* / Q000175:diagnosis*; D005500:Follow-Up Studies; D006329:Heart Conduction System / Q000002:abnormalities*; D006801:Humans; D008297:Male; D055815:Young Adult