Expandable external support device to improve Saphenous Vein Graft Patency after CABG

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.

ISSN: 1749-8090