Transvenous atrial pacing in the management of sick sinus syndrome following surgical treatment of the univentricular heart: case report and review.
An 11-year-old boy with univentricular heart type A-III underwent surgical treatment at age 10 with a modified Fontan operation. Six months postoperatively he developed intermittent periods of cyanosis and fatigue associated with profound sinus bradycardia and nodal escape. After demonstrating normal atrioventricular conduction, a transvenous atrial pacemaker was implanted. This produced a marked clinical improvement. Transvenous atrial pacing is a satisfactory method of treating sinus node dysfunction in patients with univentricular heart following the Fontan operation provided that there is normal AV conduction.
D002648:Child; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology; D006330:Heart Defects, Congenital / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D008297:Male; D008991:Monitoring, Physiologic; D010138:Pacemaker, Artificial; D011183:Postoperative Complications / Q000503:physiopathology / Q000628:therapy*; D012804:Sick Sinus Syndrome / Q000503:physiopathology / Q000628:therapy*