It was reported that the pacemaker exhibited undersensing and loss of capture on the right atrial (ra) lead and high thresholds on the right ventricular (rv) lead.Technical services (ts) was contacted, and ts discussed troubleshooting steps and conveyed that the pacemaker was functioning as normal and the all lead measurements were stable.The health care professional (hcp) reported the patient recently had pericardial effusion and wanted to check the ra and rv lead positions in case they had moved when they addressed the effusion.The pacemaker system remains in service.No adverse patient effects were reported.
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