Effects of and prognostic factors affecting endovascular mechanical thrombectomy of acute vertebrobasilar artery occlusion

Accounting for about 1% of all strokes, basilar artery occlusion comprises one of the most aggravating conditions in neurology with a high risk of mortality and disability if not recanalized in a timely manner[1–6]. The outcome and mortality related to basilar artery occlusion are much worse than those of anterior circulation strokes [7–10], and conventional treatment of basilar artery occlusion may cause 80% of the patients to die or survive with severe disability. Currently, mechanical endovascular thrombectomy has been accepted as a standard treatment modality for acute ischemic stroke in the anterior circulation in some well-performed randomized clinical trials [11], but it has not been established as the standard therapy for acute basilar artery occlusion.