Collection of surgical records
We confirmed the record of CS and the Maze procedure before CA. Cryo
ablation using the Cardioblate CryoFlex2 (Medtronic
Inc., Minneapolis, MN, United States) was performed at -60 to -90
degrees for 60 to 180 seconds, and RF ablation was performed as reported
previously using the Cardioblate10 (Medtronic) or the
Atricure11 (AtriCure Inc., Cincinnati, OH, United
States).