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The Journal of Thoracic and Cardiovascular Surgery, Vol 77, 249-251, Copyright © 1979 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association

ARTICLES

Implantation of an endocardial tined lead to prevent early dislodgment

MW Painter, OB Harrington, VG Crosby and RY Wolf

Early electrode dislodgment from the ventricular apex is a major complication associated with transvenous cardiac pacing. A new lead with flexible tines proximal to the tip electrode has been developed to minimize acute dislodgment incidence. The bipolar tined lead was implanted in 79 patients. This experience was compared to 48 implants of a standard bipolar endocardial lead. Stimulation threshold, sensing, and resistance measurements from both leads were comparable. Although the cephalic vein was the preferred venous route, the jugular vein was needed more often for tined lead insertion than for standard lead insertion. The incidence of early dislodgment with the tined lead was 2.5 percent compared to 8 percent with the standard lead (no significant difference). This preliminary experience can only suggest that the addition of flexible tined leads may reduce early electrode dislodgment.