Association of Serum Creatinine Level with Prognosis of Laparotomy for Acute Mesenteric Ischemia after Cardiovascular Surgery

Table 4

Cox proportional hazard regression analysis of mortality.

Variables	Univariate analysis			Multivariate analysis
	Hazard ratio	95% CI	value	Hazard ratio	95% CI	value
Sex (male)	1.808	0.388–10.309	0.369
Age	1.021	0.966–1.080	0.456
Duration between CS and AMI	0.999	0.996–1.002	0.435
Nonocclusive mesenteric ischemia	1.292	0.432–3.858	0.647
Emergency cardiovascular surgery	35.530	0.207–6085.317	0.174
P-POSSUM-predicted mortality rate	1.016	0.997–1.034	0.094	1.045	1.004–1.089	0.033
Hypertension	0.535	0.179–1.603	0.264
Diabetes mellitus	0.824	0.182–3.738	0.802
Heart failure	0.796	0.218–2.904	0.730
ASO	0.508	0.066–3.915	0.516
Renal failure	1.642	0.448–6.019	0.454
Hemodialysis	4.442	1.402–14.066	0.011	2.368	0.626–8.960	0.204
Ventilator	0.762	0.387–3.653	1.189
White blood cell count	1.000	1.000–1.000	0.682
Lactate level	1.008	0.996–1.021	0.176
Creatinine level	1.538	1.158–2.042	0.003	1.610	1.124–2.308	0.009
AST level	1.000	0.998–1.001	0.820
CRP level	1.003	0.945–1.065	0.916
Cardiac surgery	0.046	0.000–7760.923	0.616
Aortic surgery	0.908	0.198–4.173	0.901
Peripheral artery	1.673	0.358–7.819	0.513
Ascites	1.214	0.397–3.714	0.734
Free air	1.661	0.362–7.628	0.514
Intestinal emphysema	0.506	0.112–2.291	0.377
Hepatic portal vein gas	0.902	0.116–7.021	0.921
Resection of the small intestine	2.348	0.720–7.658	0.157
Resection of the colorectum	0.466	0.156–1.392	0.172

AMI, acute mesenteric ischemia; ASO, arteriosclerosis obliterans; AST, aspartate aminotransferase; CRP, C-reactive protein; CS, cardiovascular surgery; CT, computed tomography; P-POSSUM, Portsmouth physiological and operative severity score for the enumeration of mortality and morbidity.