undersensing

un·der·sens·ing

(ŭn'dĕr-sens'ing),
Nonsensing of the intracardiac atrial or ventricular depolarization signal by a pacemaker.

undersensing

Cardiology Failure of a pacemaker to sense the P or R waves, which may cause the pacemaker to emit inappropriately timed impulses. See Pacemaker.
References in periodicals archive ?
It was essential that the devices were programmed appropriately to avoid far-field R-wave oversensing and atrial undersensing to ensure a high sensitivity and specificity for AF detection.
Olmesartan Reduces New-onset Atrial Fibrillation and Atrial Fibrillation Burden after Dual-chamber Pacemaker Implantation in Atrioventricular Block Patients
Arrhythmias on surface ECG can be induced by undersensing, oversensing or failure to capture (Fig.
Clinical impact of surface electrocardiography of cardiac arrhythmias in pacemaker-ICD patients
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