Reperfusion injury on computed tomography following endovascular revascularization of acute mesenteric ischemia: prevalence, risk factors, and patient outcome

Insights into Imaging

Table 3 Multivariate analysis for the identification of factors associated with reperfusion injury following endovascular revascularization, using a Cox proportional hazards regression model

Variables	HR	95%CI	p value
Women			0.863
Pre-treatment serum lactate (mmol/L)	1.47	1.02–2.11	0.034
Pre-treatment WBC (G/L)			0.670
Decreased bowel wall enhancement on pre-treatment CT	8.28	2.07–33.09	0.003
Complete SMA occlusion	7.04	1.09–45.53	0.04
Predominant vascular lesion in middle/distal SMA			0.168
Arterial emboli cause	7.42	1.58–34.72	0.011
Delay initial CT—revascularization (hours)			0.272
Treatment with thrombolysis			0.663
Treatment with stenting			0.297
Treatment with thrombus-aspiration			0.153

CI confidence interval; CT (computed tomography); HR (hazard ratio); HR hazard ratio; SMA (superior mesenteric artery); and WBC (white blood cells)