Key result
Recipient P wave synchronized pacing of the donor atrium maintained AV synchrony and allowed appropriate rate increase during exercise in a 23-year-old heart transplant patient.
Recipient P wave synchronized pacing of the donor atrium is a feasible strategy to maintain AV synchrony and chronotropic competence in heart transplant recipients.
May offer pacing option for post-transplant chronotropic incompetence; leaves open efficacy and outcomes in larger cohorts.
We present the case of a 23-year-old patient who underwent orthotopic heart implantation and subsequent implantation of an atrial dual chamber pacemaker. The stimulation rate in the donor atrium is controlled by the recipient's sinus node activity, thereby maintaining AV synchrony and allowing appropriate rate increase during exercise.
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Markewitz et al. (1988) studied this question. Recipient P wave synchronized pacing of the donor atrium maintained AV synchrony and allowed appropriate rate increase during exercise in a 23-year-old heart transplant patient.
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