Ischemia/reperfusion injury in porcine intestine - Viability assessment

Table 2 Clinical parameters during ischemia/reperfusion in porcine jejunum

Ischemia (h)	Observations on the ischemic jejunum	Minutes after reperfusion before color has returned (mean ± SD)	Observable peristalsis in No. of pigs	Reperfusion (h)	Observations on the reperfused jejunum	No. of pigs
0	Normal color					15
1	Purple	0.9 ± 0.1	15 of 15	8	Edema	15
2	Darker purple	2 ± 0.1	2 of 2	8	Edema, slight fibrinous coating	2
3	Darker purple	4 ± 0.3	13 of 13	8	Edema, fluid droplets, slight fibrinous coating	13
4	Darker purple	6 ± 0.7	4 of 4	8	Edema, fluid droplets, fibrinous coating, darker internal hue	4
5	Darker purple	15 ± 1.6	11 of 11	8	Edema, fluid droplets, fibrinous coating, darker internal hue	11
6	Darker purple	26 ± 3.3	3 of 4	8	Edema, fluid droplets, fibrinous coating, deeper red color, darker internal hue	4
8	Black	49 ± 91	0 of 4	8	Edema, fluid droplets, fibrinous coating, deeper red color, darker internal hue	4
12	Patches of paler color					4
16	Necrotic					4

¹There was a lot of internal bleeding in the jejunum, so determination of the time before return of color was difficult. Images in Figure 1.