Relationship between Angiotensin Converting Enzyme, Apelin, and New-Onset Atrial Fibrillation after Off-Pump Coronary Artery Bypass Grafting

Figure 5

(a) A paired samples -test was used to assess the levels of serum ACE preoperatively and postoperatively and they were not statistically significantly different in the entire sample (), the POAF group (), and the no POAF group (). (b) A paired samples -test was used to determine the levels of serum apelin preoperatively and postoperatively and they were not statistically significantly different in the entire sample (), the POAF group (), and the no POAF group (). (c) A paired samples -test was used to determine the levels of CRP between groups. The levels of CRP postoperatively were higher than preoperatively (, the results were statistically significant). (d) A paired samples -test was used to determine the levels of MDA between groups. The levels of serum MDA postoperatively were higher than preoperatively (, the results were statistically significant).

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