Conduction left-to-right and right-to-left across the crista terminalis.

Studies heart conduction across the crista terminalis. Activation across the crista terminalis during overdrive pacing of sinus rhythm; Variations in left atrial-to-right atrial activation across the crista terminalis while pacing from thee posterior-inferior left atrium; Activation across the crista terminalis during atrial flutter or atrial fibrillation.