Development of a New Hybrid Biodegradable Drug-Eluting Stent for the Treatment of Peripheral Artery Disease

Table 3

Histopathological assessment of porcine iliac arteries 8 weeks after stenting.

	Group 1; ()	Group 2; ()	Group 3; ()	Group 4; ()
Inflammatory score, n (%)					0.172
0-1	5 (100)	3 (60)	3 (60)	5 (100)
2-3	0 (0)	2 (40)	2 (40)	0 (0)
Vessel injury score, n (%)					0.414
0-1	3 (60)	3 (60)	3 (60)	5 (100)
2-3	2 (40)	2 (40)	2 (40)	0 (0)

Group 1: bare-metal stent (BMS), group 2: drug-free hybrid stent, group 3: 50% PTX/PLGA (fast PTX-releasing form) hybrid stent, and group 4: 30% PTX/PLGA (slow PTX-releasing form) hybrid stent.