The incidence of pacemaker lead fracture is about

The incidence of pacemaker lead fracture is about 2.6–3.6% [3,4]. However, most cases of pacemaker lead fracture occur within the pacemaker pocket or the subclavian vein between the mCAP and the first rib [3,4], and fracture at the tricuspid valve level is rare [5–7]. When lead fracture occurs, the lead impedance becomes greatly elevated and immeasurable by pacemaker telemetry [1]. However, the present case showed only a slight increase in the lead impedance after the fracture of the lead. Had the pacemaker lead system in this case been bipolar, the lead impedance might have increased greatly. We presume that an electric current continued flowing through the stump of the fractured unipolar lead to the generator, which might have caused the limited increase in lead impedance in Core particle case. In addition, a remote monitoring system was not used in this case to measure the lead impedance. It may have been possible to detect a partial fracture before the completion of the lead fracture if this patient used a remote monitoring system [8,9].
Conclusion
Conflict of interest