Surgical treatment of tachyarrhythmias in patients with both an Ebstein anomaly and a Kent bundle.
The report relates experience with six patients with Kent bundles, five of whom had the Wolff-Parkinson-White syndrome, operated upon for tachyarrhythmias caused by the presence of the pathway. It was successfully divided in four patients, its antegrade conduction capacity interrupted in one, and a failure occurred in the sixth patient. In the three patients who had a Kent bundle with a short effective refractory period for antegrade conduction, the life-endangering potential of the Kent pathway was corrected. To emphasize the complexities of the tachyarrhythmias in Ebstein's anomaly, two patients have mild but controllable postoperative supraventricular tachyarrhythmias (SVT) due to a Mahaim pathway. The surgical problems encountered in these patients are reviewed.
D000293:Adolescent; D000328:Adult; D004437:Ebstein Anomaly / Q000150:complications*; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000002:abnormalities* / Q000601:surgery; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D013610:Tachycardia / Q000209:etiology*; D014927:Wolff-Parkinson-White Syndrome / Q000209:etiology