The Journal of Thoracic and Cardiovascular Surgery, Vol 71, 698-703, Copyright © 1976 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association
Interference with function of unipolar pacemaker due to muscle potentials
ST Anderson and BB Davis
One hundred and seventy-three unipolar pulse generator systems were tested
in 169 patients to determine the incidence of sensing of muscle potentials.
One hundred and twenty-two implants in the pectoral region were suitable
for assessment and 60 (49 per cent) demonstrated sensing.
Ventricular-inhibited units sensed muscle potentials in 69 per cent (47 of
78), with 9 patients complaining of related symptoms. Ventricular-
synchronous units sensed in 30 per cent (13 of 34) with no patient
manifesting symptoms.