Decreasing ventricular channel sensitivity can resolve far-field P wave oversensing in biventricular pacemakers.
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May guide oversensing management in BiV pacemakers; hypothesis-generating case report requiring prospective confirmation before practice change.
LIPCHENCA, I., et al. : Inhibition of Biventricular Pacemakers by Oversensing of Far‐Field Atrial Depo‐larization. This report describes two patients who exhibited far‐field oversensing of the P wave by the ventricular channel of a DDD biventricular pacemaker implanted for the treatment of congestive heart failure. Oversensing probably occurred secondary to slight displacement of the left ventricular lead in the coronary venous system. Long‐term reliable pacing was restored by decreasing the sensitivity of the ventricular channel.
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Lipchenca et al. (2002) studied this question.
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