Ex vivo optical mapping experiments included: recording atrial arrhythmia inducibility (AF and tachycardia) via burst-pacing; detecting atrial conduction velocity (CV) at S1-S1 intervals of 240–160 ms; describing epicardial APD in three regions, calculating APD ratio COV, and plotting APD90 trajectories under basic pacing; analyzing AP signal peak and active times; and investigating arrhythmogenic AP alternans ratio using a rapid pacing protocol across four experimental groups.

Regenerative Biomaterials( IF8.1)

https://pubmed.ncbi.nlm.nih.gov/40575761/