Low-frequency oscillations of atrial fibrillation cycle length in goats: characterization and potentiation by class III antiarrhythmic almokalant

Chronically fibrillating goats exhibit random LFOs, which are enhanced by almokalant. The improvement of propagation during oscillations suggests an increase in the excitable period/excitable gap. These findings raise the question of LFOs involvement in atrial fibrillation termination.