Clinical Efficacy of Endovascular Mechanical Thrombectomy with Retrievable Stents for Acute Basilar Artery Occlusion
1.Department of Neurology，Hebei Provincial Key Laboratory of Neurology，the Second Hospital of Hebei Medical University，Shijiazhuang 050000，China
2.Department of Diagnostic Teaching and Research，Hebei Medical University，Shijiazhuang 050000，China
*Corresponding author：SHI Zhi-qin，Associate professor； E-mail：hsszq123@163.com
Abstract：Objective To investigate the clinical efficacy and safety of endovascular mechanical thrombectomy（EMT） with Solitaire AB stent in patients with acute basilar artery occlusion（ABAO），and to analyze the factors that affect the clinical prognosis.Methods In this retrospective study，we enrolled 16 consecutive cases of ABAO from Department of Neurology，the Second Hospital of Hebei Medical University from March 2015 to December 2017.All of them underwent EMT with the Solitaire AB stent.The recanalization rate and complications of EMT were analyzed.The clinical prognosis within 90 days after EMT was evaluated and its associated factors were analyzed.Results 14 out of 16 patients were successfully treated with EMT.Modified Treatment in Cerebral Ischemia Scale（mTICI） 3 or 2b level was successful achieved in 11 cases（11/16）.There was no symptomatic intracranial hemorrhage，whereas 1 case（1/16） of failed endoscopic stent retrieval occurred，and 1 case（1/16） of iatrogenic dissection.The follow-up within 90 days after EMT showed that 5 cases（5/16） died.The Modified Rankin Scale（mRS） score of the survivals was（2.0±1.4）.Seven cases（7/16） with mRS score≤ 2 were found with favorable prognosis，but other 9 cases（9/16）（including 4 with mRS score > 2 and 5 deaths） with poor prognosis.Sex，preprocedural NIHSS score，preprocedural pc-ASPECTS，being comatose or hemiplegia in consultation，duration between the onset of stroke symptoms and admission time，duration between the onset of stroke symptoms and recanalization time differed significantly between patients with good prognosis and those with poor prognosis（P<0.05）.Conclusion EMT with Solitaire AB stent could achieve a high recanalization rate and improve the clinical prognosis in ABAO patients.
