During the follow-up angiography, the surgeons observed a thin neointima lining the stent, indicating early healing.

In the biopsy samples collected six months after angioplasty, the neointimae displayed significant cellular proliferation.

After stent implantation, the formation of neointimas can lead to vessel narrowing over time.

The research team reported neointimal thickening adjacent to the stent struts during the follow-up angiography.