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

Table 4

Comparison of the differences of serum ACE, Ang II, BK, apelin, CRP, and MDA between preoperation and postoperation in each group.

Characteristics	Preoperation	Postoperation	-value	value
Total
ACE (ng/mL)				0.339
Ang II (pg/mL)				0.755
BK (pg/mL)			0.700	0.484
Apelin (pg/mL)				0.055
Crp (mg/L)				<
MDA (nmol/mL)				<
POAF group
ACE (ng/mL)				0.214
Ang II (pg/mL)			0.487	0.627
BK (pg/mL)			0.850	0.397
Apelin (pg/mL)				0.274
Crp (mg/L)				<
MDA (nmol/mL)				<
No POAF group
ACE (ng/mL)				0.324
Ang II (pg/mL)				0.567
BK (pg/mL)			0.309	0.758
Apelin (pg/mL)				0.057
Crp (mg/L)				<
MDA (nmol/mL)				<

Notes. Data presented as mean ± standard deviation. value < 0.05; the difference was statistically significant. Other abbreviations are as in Tables 1 and 2.