This paper followed-up the MARVEL study, a single-timepoint accelerometer-based atrial sensing and whether or not it improved AV synchrony in patients with AV block and a Micra pacemaker. The cohort included nine patients from the MARVEL. The researchers reported that both accelerator-based atrial sensing signals amplitude and AV synchrony remained normal between clinic visits (P=0.740). The researchers concluded that “accelerator-based signals amplitude and performance of AV synchrony pacing were stable over time,” and that “the AV synchronous pacing mode behaved safely” during atrial arrhythmias.
Garweg C, Splett V, Sheldon T, et al. Pacing Clin Electrophysiol. 2019;doi:10.1111/pace.13615