Correlation of platelet activation and inflammatory factor to vascular restenosis following intravascular stent implantation / 中国组织工程研究

ABSTRACT

OBJECTIVE: To explore the correlation among platelet activation, inflammatory factor changes and vascular restenosis following intravascular stent implantation.METHODS: Chinese Journal Full-Text Database and Pubmed were retrieved using search terms of intracranial arterial, stents,stenosis, elevated platelet activation, and inflammatory factors from January 1999 to June 2009. The language was restricted within Chinese and English. Simultaneously, platelet activation and inflammatory factor changes were acted as evaluation indexes. Accordingly, clinical research regarding treating intracranial artery stenosis with intravascular stent implantation was included. The animal experiment or other treatment methods were excluded.RESULTS: A total of 650 papers were obtained by initial search with computer. According to inclusion criteria, the related papers were analyzed. Platelet activation, inflammatory reaction and inflammatory factor were the focuses of research concerning restenosis following intravascular stent implantation. Platelet thrombus was the main factor to cause acute vascular occlusion, and the activated platelet aggravated the damage of endothelial cells, which induced over proliferation of smooth muscle cell. As a kind of foreign body, the stent implantation was closely associated with complication, such as formation of thrombosis, acute vascular occlusion, vasovagal reflex and immune reaction, which lead to reconstruction of vessel wall and in-stent restenosis.CONCLUSION: It is effective to cure vascular restenosis by undergoing antiplatelet therapy prior to implantation, controlling inflammatory reaction, as well as inhibiting vascular smooth muscle cell proliferation following intravascular stent implantation.