British Journal of Anaesthesia, Vol 84, Issue 4 508-509, Copyright © 2000 by Oxford University Press
PA Southorn, GS Kamath, GM Vasdev and DL Hayes
Minute ventilation-sensing pacemakers enable the paced heart to respond to
an increased workload. Two patients with such a pacemaker developed
pacemaker-driven tachycardia when connected to an electrocardiogram (ECG)
monitor also capable of documenting ventilatory frequency and ECG lead
disconnection. This tachycardia stopped when the ECG leads were removed.
These pacemakers and monitors emit a low-amplitude electrical current and
measure the resultant impedence signal across the chest. When patients are
connected to the monitor the pacemaker sensor summates both impedence
signals and the paced heart rate is increased as a result.
ARTICLES
Monitoring equipment induced tachycardia in patients with minute ventilation rate-responsive pacemakers
Department of Anesthesiology, Mayo Clinic, Rochester, MN 55905, USA.
![]()
CiteULike
Connotea
Del.icio.us What's this?