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(Circulation. 1966;33:I-99.)
© 1966 American Heart Association, Inc.

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Epicardiac Radiofrequency Cardiac Pacemaker Implant

Preliminary Report

C. E. ANAGNOSTOPOULOS M.D.¹; WILLIAM W. L. GLENN M.D.¹; W. G. HOLCOMB B.E.E.¹; D. W. VAN HEECKEREN M.D.¹; James Hogan ¹; Marvin Katz ¹

¹ From the Section of Cardiovascular Surgery, Yale University School of Medicine, New Haven, Connecticut.

A newly designed epicardiac radiofrequency (RF) pacemaker implant is described. The technique allows for a possible two-month battery life and is more efficient and practical than previous RF epicardiac pacemakers. Preliminary studies on 20 animals show that stimulation with the conventional external RF unit, although difficult for prolonged periods in the canine (for anatomical reasons), is possible. Studies on electrode size and configuration were done, and the reasons for selecting a platinum peg electrode are discussed.