We used standard microelectrode techniques to study delayed afterdepolarizations and triggered activity induced by alpha 1-adrenergic stimulation in canine Purkinje fibers in the setting of simulated ischemia and reperfusion.
An alpha-1-adrenergic receptor subtype is responsible for delayed afterdepolarizations and triggered activity during simulated ischemia and reperfusion of isolated canine Purkinje fibers.