The Annals of Thoracic Surgery, Vol 23, 39-44, Copyright © 1977 by The Society of Thoracic Surgeons
Intraoperative identification of the conduction system in repair of endocardial cushion defect
GS Wolff and RD Alley
Electrophysiological identification intraoperatively of the His- Purkinje
system eliminates the complication of complete heart block consequent upon
repair of endocardial cushion defect (ECD). Ten patients, 6 with complete
ECD and 4 with incomplete ECD, underwent repair of the defect. None of the
patients developed heart block. Slight variations were noted in the
location of the His bundle in 9 patients, and a major deviation was found
in 1 patient with incomplete ECD. The data support the use of
intraoperative recordings as a necessary acconpaniment to the operative
repair of ECD.