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Figure 5 Wenckebach AV Conduction After Isolation
Wenckebach atrioventricular (AV) nodal physiology was reserved after the small atrial segment was isolated. (A) In experiment 4, pacing from the isolated atrial segment at 200 beats/min resulted in Wenckebach AV conduction. (B1) In experiment 5, pacing from the isolated atrial segment at 190 beats/min resulted in constant 1:1 AV conduction. (B2) In the same experiment as B1, pacing from the isolated atrial segment at 200 beats/min resulted in 2:1 AV conduction. LV = recording from the left ventricle; PACE = recording from pacing lead inserted into the isolated atrial segment; RV = recording from the right ventricle.
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