The Journal of Thoracic and Cardiovascular Surgery, Vol 88, 273-277, Copyright © 1984 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association
Epicardial cryoablation of the bundle of His. An experimental study
GA Painvin, PA Gillette, A Zinner, OH Frazier, DA Cooley, M Finegold and IJ Reece
An extracardiac, transepicardial approach to the atrioventricular junction,
allowing selective cryoablation of the bundle of His, was performed in 10
mongrel dogs. This technique appears to minimize dissection complications,
the risk of endocardial damage, and injury to the tricuspid valve, which
are reported with endocardial cryoablation. All dogs survived this
experiment, and no morbidity was reported. Cryodestruction of the
atrioventricular junction is histologically selective and permanent, as was
shown at the 3 month follow-up pathological examination.