"False inhibition" of demand pacemaker due to leakage of fluid into the pacemaker lead socket
Chandra, M.S.; Patel, M.R.; Laughlin, D.E.; Rossi, N.P.
Journal of Thoracic and Cardiovascular Surgery 75(5): 765-768
1978
ISSN/ISBN: 0022-5223 PMID: 642574 Document Number: 138757
"False inhibition" of a demand pacemaker usually occurs with a microfracture of the lead system resulting in a galvanic potential at the site of the fracture or with sensing of myopotential with exercise. An increase in the slope of the leading half edge of the pulse contour is generally considered diagnostic of lead fracture. We report the case of a patient in whom "false inhibition" at rest and an increase in the slope of the leading half edge of the pulse contour were caused by leakage of fluid into the pacemaker lead socket.