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Table 2 Characteristics and events during the operation

From: Comparison of modified MAZE with minimally invasive monopolar ablation and traditional bipolar radiofrequency ablation in the treatment of atrial fibrillation

 mi-MAZE(n = 42)os-MAZE(n = 65)P value
extracorporeal circulation, mean ± SD
 cardiopulmonary bypass (CPB) time(min)114.5 ± 18.6893.0 ± 21.180.000a
 aortic cross-clamping (ACC) time(min)77.0 ± 14.8456.4 ± 16.630.000b
operation time, mean ± SD,(min)211.1 ± 29.70198.1 ± 31.740.104b
Intraoperative adverse events, n (%)
 Low cardiac output0(0)0(0)NA
 Myocardial infarction0(0)0(0)NA
 Acute renal insufficiency0(0)0(0)NA
 Death0(0)0(0)NA
 Conversion to open surgery0(0)0(0)NA
  1. aStudent T test
  2. bKolmogorov-Smirnov test