These results confirm our hypothesis that the source of cells resulting in venous stenosis formation is derived from the adventitia and media, with cell migration being greatest within the first two weeks after graft placement with translocation of these cells into the intima at four weeks. MMP-2 activity peaks at day seven in the adventitia and again at days 19 to 26 in the intima. A key to limiting venous stenosis formation may lie in inhibiting MMP-2 by adventitial and medial targeting.
Long-term outcome after surgery is a new safety concern in perioperative care. We are faced with enormous challenges in healthcare and research. As providers, tailoring an anesthetic plan to patients' needs will become increasingly critical, and immunology should help in this pursuit.
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