Before revision:  In the presence of  passive atrial stretch, stretch-activated channels play the largest role, leading to after-depolarizations and rotor hypermeandering  .
After revision:  In the presence of passive atrial stretch, stretch-activated channels play the largest role, leading to after-depolarizations and rotor hypermeandering . These findings suggest that physiological atrial stretches, such as passive stretch during the atrial reservoir phase, may play an important part in the mechanisms of atrial arrhythmogenesis .