Pacing failure due to microdislodgement of ventricular pacing lead detected by home monitoring technology.
A 68-year-old woman affected by sick sinus syndrome was implanted with a dual-chamber pacemaker provided by home monitoring technology. After discharge, an increase in ventricular threshold and a high variability of R wave measurements were detected early by the home monitoring system. Manual tests confirmed the presence of pacing and sensing failure and a normal ventricular impedance. The pacing lead integrity and a stable position of the lead tip in right ventricular apex were assessed by chest X-ray. A diagnosis of microdislodgement was made. After a second procedure for ventricular lead repositioning, no further malfunctions were detected.
Loricchio
Maria Luisa
ML
Cardiology Department, Sandro Pertini Hospital, Rome, Italy. ml.loricchio@tin.it
Castro
Antonio
A
Ciolli
Andrea
A
Sasdelli
Massimo
M
Ferraiuolo
Giuseppe
G
D000368:Aged; D004562:Electrocardiography; D004567:Electrodes, Implanted; D004868:Equipment Failure; D005260:Female; D006339:Heart Rate; D006801:Humans; D010138:Pacemaker, Artificial; D012804:Sick Sinus Syndrome / Q000628:therapy; D013686:Telemetry