Table 2.

Comparison of the histopathology of the distal ends of radial arteries (close to the puncture site) between TRA group vs NCA group

Variables	TRA group (n = 15)	NCA group (n = 19)	P value
Intimal proliferation (n, %)	11 (73.3%)	4 (21.1%)	0.03
Medial calcification (n, %)	6 (40%)	2 (10.5%)	0.06
Medial inflammation (n, %)	1 (6.7%)	0	0.44
Tissue/fat necrosis (n, %)	4 (26.7%)	0	0.02
Adventitial inflammation (n, %)	5 (33.3%)	0	0.01
Adventitial necrosis (n, %)	2 (13.3%)	0	0.18
Adventitial neovascularization (n, %)	0	3 (15.8%)	0.16

Abbreviations: NCA, never catheterized arteries; TRA, transradial catheterized arteries.