What to do about fibrin rich "tough clots'? Comparing the Solitaire stent retriever with a novel geometric clot extractor in an in vitro stroke model

被引：62

作者：

Fennell, Vernard S. ^{[1
]}

Nagesh, Swetadri Vasan Setlur ^{[2
]}

Meess, Karen M. ^{[3
,4
,5
]}

Gutierrez, Liza ^{[6
]}

James, Rhys H. ^{[3
]}

Springer, Michael E. ^{[3
]}

Siddiqui, Adnan H. ^{[3
,7
,8
]}

机构：

[1] SUNY Buffalo, Dept Neurosurg, Buffalo, NY USA

[2] SUNY Buffalo, Toshiba Stroke & Vasc Res Ctr, Buffalo, NY USA

[3] Jacobs Inst, Buffalo, NY USA

[4] SUNY Buffalo, Dept Biomed Engn, Buffalo, NY USA

[5] CUBRIC Inc, Buffalo, NY USA

[6] SUNY Buffalo, Sch Med & Biomed Sci, Toshiba Stroke & Vasc Res Ctr, Buffalo, NY USA

[7] SUNY Buffalo, Toshiba Stroke Res Ctr, Dept Neurosurg, Buffalo, NY USA

[8] SUNY Buffalo, Toshiba Stroke Res Ctr, Dept Radiol, Buffalo, NY USA

来源：

JOURNAL OF NEUROINTERVENTIONAL SURGERY | 2018年 / 10卷 / 09期

关键词：

flow diverter; stroke; thrombectomy; technique; technology; ACUTE ISCHEMIC-STROKE; MECHANICAL THROMBECTOMY; ARTERIES; TRIALS;

D O I：

10.1136/neurintsurg-2017-013507

中图分类号：

R445 [影像诊断学];

学科分类号：

100207 ;

摘要：

Background Despite advances in revascularization tools for large vessel occlusion presenting as acute ischemic stroke, a significant subset of clots remain recalcitrant to current strategies. We assessed the effectiveness of a novel thrombectomy device that was specifically designed to retrieve resistant fibrin rich clots, the geometric clot extractor (GCE; Neuravi, Galway, Ireland), in an in vitro cerebrovascular occlusion stroke model. Methods After introducing fibrin rich clot analogues into the middle cerebral artery of the model, we compared the rates of recanalization between GCE and Solitaire flow restoration stent retriever (SR; Medtronic, Minneapolis, Minnesota, USA; control group) cases. A maximum of three passes of each device was allowed. If the SR failed to recanalize the vessel after three passes, one pass of the GCE was allowed (rescue cases). Results In a total of 26 thrombectomy cases (13 GCE, 13SR), successful recanalization (Thrombolysis in Cerebral Infarction score of 2b or 3) was achieved 100% of the time in the GCE cases with an average of 2.13 passes per case. This rate was significantly higher compared with the Solitaire recanalization rate (7.7%, P<0.0001) with an average of three passes per case. After SR failure (in 92% of cases), successful one pass GCE rescue recanalization was achieved 66% of the time (P<0.005). Conclusion Application of the GCE in this experimental stroke model to retrieve typically recalcitrant fibrin rich clots resulted in higher successful recanalization rates than the SR.

引用

页码：907 / 910

页数：4

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