• J Electrocardiol · Oct 1980

    Case Reports

    Arrhythmia resulting from sensing malfunction in a P wave triggered pacemaker.

    • G P Curtis and L H Lief.
    • J Electrocardiol. 1980 Oct 1;13(4):401-4.

    AbstractP wave triggered pacemakers can produce complicated arrhythmias during normal function. A ventricular, R wave inhibited pacemaker and an atrial sensing pacemaker were both present and functioning normally in the patient reported here. A premature paced beat was observed every 12th beat which resulted from discharge of the atrial sensing pacemaker. This arrhythmia appeared because a "P" wave occurred during the noise sampling period of the atrial sensing pacemaker, disabling the demand function and resulting in generator discharge on or near the T wave of a preceding unsensed beat while the pacemaker was in the asynchronous mode.

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