Bilateral carotid sinus nerve stimulation in a patient with atrial fibrillation resulted in abrupt prolongation of RR-intervals after approximately 1.5 seconds.
Case Report (n=1)
Does bilateral carotid sinus nerve stimulation alter ventricular rhythm in a patient with atrial fibrillation?
Bilateral carotid sinus nerve stimulation in atrial fibrillation prolongs RR-intervals but does not alter the random character of the ventricular rhythm, likely due to reflex latency.
The influence of bilateral carotid sinus nerve stimulation was studied in a patient with atrial fibrillation. Stimulation resulted after approximately 1.5 s in abrupt prolongation of the minimum, median and maximum RR-interval, and in greater RR-interval dispersion. Virtually no change was observed in the random character of the ventricular rhythm. The absence of demonstrable baroreflex modulation of the ventricular rhythm in atrial fibrillation is probably due to the relatively long latency of the reflex effect on atrioventricular conduction in relation to the duration of the RR-intervals.
Borst et al. (Thu,) conducted a case report in Atrial fibrillation (n=1). Bilateral carotid sinus nerve stimulation was evaluated on Ventricular rhythm (RR-interval). Bilateral carotid sinus nerve stimulation in a patient with atrial fibrillation resulted in abrupt prolongation of RR-intervals after approximately 1.5 seconds.