Selective stent implantation for treatment of severe residual stenosis of intracranial target artery after successful mechanical thrombectomy / 中国介入影像与治疗学

ABSTRACT

Objective: To investigate the feasibility of selective stent implantation for treatment of severe residual stenosis of intracranial target artery after successful mechanical thrombectomy (MT). Methods: Selective stent implantation was successfully performed for treatment of severe residual stenosis of the intracranial target artery after MT in 4 patients, and the data of patients were analyzed retrospectively. Results: The occluded arteries of 4 patients were all successfully recanalized after MT, and all the target arteries remained severe stenosis (≥70%) with antegrade blood flow stable. Two patients with major acute infraction on MRI within 72 h underwent stent implantation 48 days and 27 days after thrombectomy, while the other two with minor infraction and little neural deficits underwent stent implantation 4 days and 12 days after thrombectomy, respectively. The blood flows were all satisfying after stenting, no complication occurred, and modified Rankin scale (mRS) of all patients were ≤2 after 90 days. No stent migration was observed at the end of follow-up, and all target arteries remained patent. Conclusion: Selective stent implantation is an alternative, relatively safe and effective treatment method for residual severe intracranial stenosis after the reexamination of cerebral infarction and the neurological function.