Stent Retriever Thrombectomy of Small Caliber Intracranial Vessels Using pREset LITE: Safety and Efficacy

Clinical Neuroradiology
W KurreH Henkes

Abstract

Few devices are approved for thrombectomy of distal vessel branches, and clinical experience is limited. Here we report our experience with pREset LITE for thrombectomy of small intracranial vessels. From an institutional database we selected consecutive patients treated with pREset LITE for an occlusion of small (≤ 2 mm), intracranial target vessels. Recanalization success was measured by applying the modified Thrombolysis In Cerebral Infarction (mTICI) score. To assess safety, we recorded device-related procedural events and potentially device-related hemorrhages on follow-up imaging. Infarcts in the dependent territory served as a measure for efficacy. Of 536 patients treated between August 2013 and March 2015, 76 met the inclusion criteria. pREset LITE was used in 90 branches with an average diameter of 1.6 mm (1.3-2.0 mm). An mTICI score ≥ 2b was achieved in 70.0 %. Procedural events consisted of 5.6 % significant vasospasm, 2.2 % suspected dissections, 2.2 % downstream emboli, and 1.1 % self-limiting extravasations. On posttreatment imaging 2.2 % parenchymal hemorrhages type I (PHI) and 13.3 % focal subarachnoid hemorrhage (SAH) were potentially device related, but all of these events remained asymptomatic. After successf...Continue Reading

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Citations

May 13, 2017·AJNR. American Journal of Neuroradiology·H Steglich-ArnholmM Holtmannspötter
Nov 14, 2019·Stroke; a Journal of Cerebral Circulation·Davide StramboPatrik Michel
Jun 2, 2020·Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences·Masaya EnomotoTeruyuki Hirano
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Sep 8, 2021·Journal of Cerebrovascular and Endovascular Neurosurgery·Yong-Hwan Cho, Jae Hyung Choi
Oct 16, 2021·AJNR. American Journal of Neuroradiology·N F BelachewJ Kaesmacher

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Methods Mentioned

BETA
dissection
dissections

Software Mentioned

pREset LITE
STATA
pREset
IC

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