Evidence map›Paper›PMID 39601859›Full record

ArticleNeuroradiology2025

Vessel deviation during stent retrieval predicts successful recanalization in stent-based mechanical thrombectomy for M2 occlusion.

Yusuke Ebiko, Hiroto Yamaoka, Tomoaki Okada, Tatsuya Mizoue, Shinichi Wakabayashi

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Article in Neuroradiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Yusuke EbikoDepartment of Neurosurgery, Suiseikai Kajikawa Hospital, 1-1-23, Higashisenda-Machi, Naka-Ku, Hiroshima, Hiroshima, 730-0053, Japan. sidebiko@gmail.com.ORCID http://orcid.org/0000-0001-7861-0202
Hiroto YamaokaDepartment of Neurosurgery, Suiseikai Kajikawa Hospital, 1-1-23, Higashisenda-Machi, Naka-Ku, Hiroshima, Hiroshima, 730-0053, Japan.
Tomoaki OkadaDepartment of Neurosurgery, Suiseikai Kajikawa Hospital, 1-1-23, Higashisenda-Machi, Naka-Ku, Hiroshima, Hiroshima, 730-0053, Japan.
Tatsuya MizoueDepartment of Neurosurgery, Suiseikai Kajikawa Hospital, 1-1-23, Higashisenda-Machi, Naka-Ku, Hiroshima, Hiroshima, 730-0053, Japan.
Shinichi WakabayashiDepartment of Neurosurgery, Suiseikai Kajikawa Hospital, 1-1-23, Higashisenda-Machi, Naka-Ku, Hiroshima, Hiroshima, 730-0053, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to clarify whether there is a relationship between vessel deviation during stent retrieval and successful recanalization in stent-based mechanical thrombectomy (MT) for M2 occlusion.

methodsThe video of the MT was reviewed for each of the 25 included patients with M2 occlusion. The vertical distance of vessel deviation at the time of stent retrieval was defined as D, and the diameter of the balloon guide catheter shown on the same screen was defined as B. The D/B ratio was calculated as an index of the vessel deviation. The presence or absence of successful recanalization (thrombolysis in cerebral infarction (TICI) score of 2b/3) was compared based on the D/B ratio and clinical factors.

resultsOf the 25 patients, successful recanalization was achieved in 18 (72%). The median D/B ratio with successful recanalization was 0.9, which was significantly lower than that without successful recanalization (2.5, p < 0.001, Mann-Whitney U test). Combined aspiration catheters were used in 24 cases. In nine (36%) cases, the tip of the aspiration catheter was in M2 during stent retrieval. The median D/B ratio with the position of the aspiration catheter tip in M1 or the internal carotid artery was 1.5, which was significantly higher than that with the position in M2 (0, p = 0.003, Mann-Whitney U test).

conclusionIn stent-based MT for M2 occlusion, cases in which successful recanalization was achieved showed less vessel deviation during stent retrieval. To reduce vessel deviation, advancing the combined aspiration catheter up to M2 is useful.

Indexed as

Device RemovalStentsThrombectomyAgedAged, 80 and overCerebral AngiographyFemaleHumansMaleMiddle AgedRetrospective StudiesTreatment OutcomeM2 occlusionMechanical thrombectomyMedium vessel occlusionVessel deviationVessel stretch

Identifiers

PMID39601859

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.