Key result
Overdrive suppression after ventricular pacing in patients with third degree A-V block resulted in an average escape rhythm recovery time of 1.45 times basal escape RR intervals.
Population
60 patients with third degree A-V block and implanted unipolar VVI pacemakers
Design
Cohort
Authors
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Escape rhythms recover gradually post-pacing in complete AV block; leaves open optimal management for patients with slow baseline escapes.
Observational (n=60)
Following overdrive suppression from ventricular pacing in complete A-V block, the escape rhythm typically recovers gradually along an exponential curve, with suppression being most marked in patients with a slow baseline escape rhythm.
Grendahl et al. (1979) conducted an observational in third degree A-V block (n=60). Overdrive suppression after ventricular pacing was evaluated on Recovery of escape rhythm from overdrive suppression. Overdrive suppression after ventricular pacing in patients with third degree A-V block resulted in an average escape rhythm recovery time of 1.45 times basal escape RR intervals.