Why the study?
Programmable and automated pacemaker features can mimic device malfunction, causing clinical manifestations and unnecessary hospital admission.
Clinicians must verify that hysteresis function is disabled in pacemaker-dependent patients to prevent inappropriate pacing inhibition and pseudo-malfunctions.
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Clinicians should recognize hysteresis as a cause of apparent pacemaker malfunction after AV node ablation; this case leaves open optimal programming strategies.
Modern implantable devices capable of pacing are armed with a multitude of programmable and automated features. Although some features represent important advances in device safety and performance, many also can mimic device malfunction and cause clinical manifestations and unnecessary hospital admission. We report a case of “pseudo-malfunction” of a pacemaker due to hysteresis programming that caused symptomatic bradycardia after atrioventricular (AV) node ablation.1
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Poletaev et al. (2023) studied this question.
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