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Reduced Incidence of Myopotential Pacemaker Inhibition by Abdominal Generator Implantation
Author(s) -
ROSENQVIST MÅRTEN,
NORDLANDER ROLF,
ANDERSSON MATS,
EDHAG OLOF
Publication year - 1986
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1986.tb04497.x
Subject(s) - medicine , provocation test , incidence (geometry) , cardiology , anesthesia , pathology , physics , alternative medicine , optics
Myopotential inhibition during permanent pacing with unipolar leads is a well‐recognized clinical problem. A study was undertaken to determine if implantation of the generator in abdominal subcutaneous tissue instead of the conventional pectoral implantation site would reduce the incidence of this inhibition. Forty patients with either an abdominal (group A. n = 20) or a pectoral (group P, n = 20) generator implantation site were subjected to a standardized protocol of muscle provocation and 24‐hour ECG. Pulse generators were programmed to the lowest sensitivity level (average, 2.0 mV). Pauses exceeding the stimulation interval were analyzed. During muscle provocation 85% of the patients in group P displayed inhibition, as against 5% in group A (p < 0.001]. During 24‐hour ECG, the corresponding values were 95% and 15%, respectively (p < 0.001). We concluded that abdominal generator implantation significantly reduces the incidence of myopotential inhibition in patients with unipolar pacemaker leads.