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Research ArticleINTERVENTIONAL

Thrombectomy Using the EmboTrap Clot-Retrieving Device for the Treatment of Acute Ischemic Stroke: A Glimpse of Clinical Evidence

X. Bai, Z. Fu, Z. Sun, R. Xu, X. Guo, Q. Tian, A.A. Dmytriw, H. Zhao, W. Wang, X. Wang, A.B. Patel, B. Yang and L. Jiao
American Journal of Neuroradiology December 2022, DOI: https://doi.org/10.3174/ajnr.A7708
X. Bai
aFrom the Departments of Neurosurgery (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.)
dChina International Neuroscience Institute (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.), Beijing, China
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Z. Fu
aFrom the Departments of Neurosurgery (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.)
dChina International Neuroscience Institute (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.), Beijing, China
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Z. Sun
aFrom the Departments of Neurosurgery (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.)
dChina International Neuroscience Institute (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.), Beijing, China
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R. Xu
aFrom the Departments of Neurosurgery (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.)
dChina International Neuroscience Institute (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.), Beijing, China
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X. Guo
eDepartment of Neurology (X.G.), Loma Linda University Health, Loma Linda, California
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Q. Tian
fBeijing Key Laboratory of Clinical Epidemiology (Q.T.), School of Public Health, Capital Medical University, Beijing, China
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A.A. Dmytriw
gNeuroendovascular Program (A.A.D.), Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
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H. Zhao
aFrom the Departments of Neurosurgery (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.)
dChina International Neuroscience Institute (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.), Beijing, China
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W. Wang
bLibrary (W.W., X.W., A.B.P.)
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X. Wang
bLibrary (W.W., X.W., A.B.P.)
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A.B. Patel
bLibrary (W.W., X.W., A.B.P.)
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B. Yang
aFrom the Departments of Neurosurgery (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.)
dChina International Neuroscience Institute (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.), Beijing, China
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L. Jiao
aFrom the Departments of Neurosurgery (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.)
cInterventional Neuroradiology (L.J.), Xuanwu Hospital, Capital Medical University, Xicheng District, Beijing, China
dChina International Neuroscience Institute (X.B., Z.F., Z.S., R.X., H.Z., B.Y., L.J.), Beijing, China
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Abstract

BACKGROUND: The EmboTrap Recanalization Device is a novel stent retriever for thrombectomy in the setting of acute ischemic stroke due to large-vessel occlusion.

PURPOSE: Our aim was to summarize the safety and efficacy of the EmboTrap Recanalization Device in acute ischemic stroke–large-vessel occlusion through a systematic review and meta-analysis.

DATA SOURCES: Medline, EMBASE, the Cochrane Library, Web of Science, and Google Scholar were searched up to April 2022.

STUDY SELECTION: Nine observational studies using the EmboTrap Recanalization Device were selected.

DATA ANALYSIS: We adapted effect size with 95% CIs for dichotomous data. P value <.05 was statistically significant.

DATA SYNTHESIS: The estimated rate of successful recanalization (modified TICI 2b–3) was 90% (95% CI, 86%–95%; I2 = 82.4%); 90-day favorable outcome (mRS 0–2), 53% (95% CI, 42%–63%; I2 = 88.6%); modified first-pass effect, 43% (95% CI, 35%–51%; I2 = 63.7%); and first-pass effect, 36% (95% CI, 29%–46%; I2 = 10.7%). The rate of any intracerebral hemorrhage was 19% (95% CI, 16%–22%; I2 = 0.0%); symptomatic intracerebral hemorrhage, 5% (95% CI, 1%–8%; I2 = 84.6%); and 90-day mortality, 14% (95% CI, 9%–19%; I2 = 79.3%). Subgroup analysis showed higher rates of complete recanalization for EmboTrap II than for the EmboTrap System.

LIMITATIONS: The included studies are single-arm without direct comparison with other stent retrievers. Some of the studies recruited had a small sample size and were limited by the retrospective study design. In addition, the uncertain heterogeneity among studies was high.

CONCLUSIONS: The EmboTrap Recanalization Device is safe and efficient in treating acute ischemic stroke due to large-vessel occlusion.

ABBREVIATIONS:

AIS
acute ischemic stroke
FPE
first-pass effect
ICH
intracerebral hemorrhage
LVO
large-vessel occlusion
mFPE
modified first-pass effect
MT
mechanical thrombectomy
mTICI
modified TICI
sICH
symptomatic intracerebral hemorrhage

Footnotes

  • Xuesong Bai, Zhaolin Fu, and Ziyi Sun contributed equally and are co-first authors.

  • Disclosure forms provided by the authors are available with the full text and PDF of this article at www.ajnr.org.

  • © 2022 by American Journal of Neuroradiology
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Thrombectomy Using the EmboTrap Clot-Retrieving Device for the Treatment of Acute Ischemic Stroke: A Glimpse of Clinical Evidence
X. Bai, Z. Fu, Z. Sun, R. Xu, X. Guo, Q. Tian, A.A. Dmytriw, H. Zhao, W. Wang, X. Wang, A.B. Patel, B. Yang, L. Jiao
American Journal of Neuroradiology Dec 2022, DOI: 10.3174/ajnr.A7708

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Thrombectomy Using the EmboTrap Clot-Retrieving Device for the Treatment of Acute Ischemic Stroke: A Glimpse of Clinical Evidence
X. Bai, Z. Fu, Z. Sun, R. Xu, X. Guo, Q. Tian, A.A. Dmytriw, H. Zhao, W. Wang, X. Wang, A.B. Patel, B. Yang, L. Jiao
American Journal of Neuroradiology Dec 2022, DOI: 10.3174/ajnr.A7708
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