His bundle electrograms and atrial pacing are reported in a 101/2-year-old boy and a 12-year-old girl, both of whom underwent Mustard repair for complete d-transposition of the great arteries. Each patient had progressive evidence of sick sinus syndrome culminating in syncope. Improvement occurred after insertion of a demand pacemaker.
ASJC Scopus subject areas
- Pediatrics, Perinatology, and Child Health