Table 1.

Histopathologic analysis

	Experimental (supported) grafts	Control grafts
Inflammation (>1)	0/10 (0%)	0/10 (0%)
Injury	0/10 (0%)	0/10 (0%)
Thrombosis	0/10 (0%)	3/10 (30%)

Injury (0–3)

0 = Tunica intima intact.

1 = Tunica intima lacerated, media compressed.

2 = Tunica intima lacerated, media lacerated, adventitia lacerated.

Inflammation (0–3)

0 = no inflammation.

1 = a very mild infiltration of few inflammatory cells (neutrophils/lymphocytes).

2 = moderate infiltration of > 10 inflammatory cells (neutrophils/lymphocytes).

3 = severe infiltration of > 100 inflammatory cells (neutrophils/lymphocytes).

Thrombosis

Organized thrombus in one or more cross section.