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Ann Thorac Surg 1977;24:258-263
© 1977 The Society of Thoracic Surgeons


Articles

Low-Cost Daily Pacemaker Monitoring System

George Benzing, III, M.D.*, Rumult Iltis, M.S.E.E., Samuel Kaplan, M.D., J. Tracy Schreiber, M.D., James Helmsworth, M.D.

From the Departments of Surgery and Pediatries, University of Cincinnati, College of Medicine, Cincinnati, OH

Accepted for publication March 9, 1977.

* Address reprint requests to Dr. Benzing, Children's Hospital Medical Center, Elland and Bethesda, Cincinnati, OH 45229

To reduce the cost of pacemaker monitoring, we developed an inexpensive cardiac pacemaker interval monitor that detects electromagnetic radiation of the electrical pulse generated by an implanted pacemaker. The pulse interval is timed by logic systems and a piezoelectric crystal. Pulse interval is computed to the nearest 0.1 msec. The device is battery powered and can be used at home by the patient to monitor pulse interval daily with little cost after the initial expenditure. The unit may also be used by the physician to detect the stability or constancy of random variation of the pulse interval. From a daily record of measurements of the pulse interval, limits are set by the physician to predict impending battery exhaustion. Eight patients have been monitored for up to 24 months.







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Copyright © 1977 by The Society of Thoracic Surgeons.