Abstract:

OBJECTIVE: To discuss cerebravascular stent type and analyze complications following stenting.
METHODS: A computer-based online search was performed for related articles published between January 2000 and December 2009 with the key words “cerebrovascular, support, hyperperfusion syndrome, complication”. Articles regarding cerebravascular stent and hyperperfusion syndrome following stenting were included. Repetitive studies or Meta analysis were excluded. Finally, 20 articles were included, and the causes for complications following stenting were discussed.
RESULTS: Currently, stenting has been demonstrated to effectively treat intracranial and extracranial artery stenosis-induced ischemic cerebrovascular disease. According to stent structure and quality, the endovascular stent is divided into metal, polymer, and eluting stents. Metal stent can meet the mechanical requirements, but it has poor compatibility. The rough surface of stent greatly affects restenosis. Hyperperfusion syndrome is a rare but severe complication following angioplasty. It occurs in vascular bed adaptable to hypoperfusion following vascular automatic regulation failure, characterized by increased intracranial blood flow. Capillary bed perfusion pressure is greatly increased, which leads to blood brain barrier damage and brain swelling and intracranial hemorrhage.
CONCLUSION: Surface modification of coating materials, improvement of biocompatibility, minimization of complication and rejection following stenting are required in further study.