Key result
Automatic extension of the atrial refractory period in DDD pacemakers can result in pacemaker inhibition, which mimics but does not necessarily represent pacemaker malfunction.
Case Report (n=1)
Clinicians must understand pacemaker timing intervals to correctly identify pacemaker inhibition caused by anti-pacemaker-mediated tachycardia algorithms rather than true device malfunction.
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Recognition of refractory period extension may prevent misdiagnosis of DDD inhibition; case reports leave open systematic validation of algorithm effects.
Satler et al. (1985) conducted a case report in Pacemaker inhibition (n=1). Automatic extension of the atrial refractory period in DDD pacemakers was evaluated on Pacemaker inhibition. Automatic extension of the atrial refractory period in DDD pacemakers can result in pacemaker inhibition, which mimics but does not necessarily represent pacemaker malfunction.
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