Summary: Introduction: For acute ischemic stroke caused by large artery occlusion, prompt significant reperfusion is essential. Standardization of device selection and surgical techniques may be useful in this regard.

Methods: This was a retrospective cohort study of 82 patients who underwent mechanical thrombectomy for acute ischemic stroke due to a large artery occlusion in the anterior circulation between August 15, 2015, and December 31, 2017. A unified approach was developed in which occlusion of the internal carotid artery or the sphenoidal segment of the middle cerebral artery was treated using a direct aspiration first-pass technique with an aspiration catheter and occlusion of either the insular segment of the middle cerebral artery or the anterior cerebral artery was treated using various stent retrievers. Patient characteristics and various factors associated with mechanical thrombectomy were analyzed.

Results: Thrombolysis in cerebral infarction scores of ≥2b were observed in 85.4% of the patients, the puncture to recanalization time was 59 minutes, and modified Rankin Scale scores of 0-2 were achieved within 90 days in 47.6% of the patients.

Discussion: The use of standardized procedures and equipment for mechanical thrombectomy did not affect the proportion of significant recanalization, but it did shorten the procedure time. The procedures were performed with satisfactory outcomes, in accordance with the results of previous reports. onclusion: It is possible to shorten the puncture to recanalization time while minimizing the number f restarts in mechanical thrombus retrieval therapy by unifying treatment strategies and procedures.