Group B

Histological alterations (90 days of catheterization)

1

Extensive erosion, hemorrhage, mild inflammatory infiltrate

2

Mild erosion of the endothelium with mild inflammatory infiltrate

3

Mild erosion of the endothelium with mild inflammatory infiltrate

4

Mild erosion in the vein endothelium with thrombosis in adjacent artery

5

Mild erosion of the endothelium with mild inflammatory infiltrate

6

Extensive erosion of the endothelium with mild inflammatory infiltrate