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Article

Mechanical Thrombectomy in Stroke. Experience from Switching from Stent Retriever Only to Stent Retriever Combined with Aspiration Catheter

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Department of Interventional Radiology, Jan Biziel University Hospital No. 2, Ujejskiego 75 Street, 85-168 Bydgoszcz, Poland
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Department of Rheumatology and Connective Tissue Diseases, Jan Biziel University Hospital No. 2, Ujejskiego 75 Street, 85-168 Bydgoszcz, Poland
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Stroke Intervention Centre, Department of Neurosurgery and Neurology, Jan Biziel University Hospital No. 2, Ujejskiego 75 Street, 85-168 Bydgoszcz, Poland
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Department of Neurosurgery and Neurology, Faculty of Health Sciences, Nicolaus Copernicus University in Toruń, Ludwik Rydygier Collegium Medicum, Ujejskiego 75 Street, 85-168 Bydgoszcz, Poland
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Department of Otolaryngology, Head and Neck Surgery, and Laryngological Oncology, Ludwik, Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, M. Skłodowskiej—Curie 9, 85-090 Bydgoszcz, Poland
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Author to whom correspondence should be addressed.
Academic Editor: Aaron S. Dumont
J. Clin. Med. 2021, 10(9), 1802; https://doi.org/10.3390/jcm10091802
Received: 27 February 2021 / Revised: 17 April 2021 / Accepted: 19 April 2021 / Published: 21 April 2021
(This article belongs to the Special Issue Novel Approaches for the Treatment of Cerebrovascular Disorders)
Endovascular treatment is a rapidly evolving technique; therefore, there is a constant need to evaluate this method and its modifications. This paper discusses a single-center experience and the results of switching from the stent retriever only (SO) mechanical thrombectomy (MT) to the combined approach (CA), with a stent retriever and aspiration catheters. Methods: The study involved a retrospective analysis of 70 patients undergoing MT with the use of either SO or CA. The primary endpoint was the frequency of perfect reperfusion defined as grade 3 of the modified Thrombolysis in Cerebral Infarction scale (mTICI) after the first pass. The secondary endpoints were the procedure success, defined as mTICI grades 2b-3; time of the procedure; clinical outcome, measured by 90 days’ modified Rankin Scale (mRS) score; Δ NIHSS, defined as the difference between National Institutes of Health Stroke Scale (NIHSS) score at patients’ admission and discharge; and the total number of device passes. Results: Out of the 70 patients included, 33 were treated with SO and 37 with CA. In both groups, a total number of 42 patients received intravenous recombined tissue plasminogen activator (iv-rTPA: 20 patients (60.6%) in the SO group and 22 patients (59.5%) in the CA group (p = 1.000). There was a significant difference between the groups regarding first-pass success rate, with 46% in the CA group and 18% in the SO group, (OR 3.83, 95% CI 1.28 to 11.44, p = 0.016). Complete procedure success tended to be more frequent in the CA group than in the SO group—94.6% vs. 84.8% (OR 3.13, 95% CI 0.56 to 17.34, p = 0.193)—and CA tended to require a lower number of passes than SO (mean 1.76 vs. 2.09 passes per procedure, p = 0.114), yet these differences did not reach statistical significance. Mean duration of the procedure was significantly shorter in the CA group than in the SO group (49 min vs. 64 min, p = 0.017). There was a significant difference in clinical outcomes, with higher Δ NIHSS (9.3 in the CA group vs. 6.7 in the SO group, p = 0.025) after the procedure and 90-day mRS (median 2 in the CA group vs. 4 in the SO group, p = 0.031). Conclusions: Combining stent retrievers with aspiration catheters may offer a beneficial effect on angiographic results and clinical outcomes in stroke patients undergoing endovascular treatment. View Full-Text
Keywords: mechanical thrombectomy; stent retriever; stentriever; aspiration catheter; ischemic stroke; large vessel occlusion; first pass effect mechanical thrombectomy; stent retriever; stentriever; aspiration catheter; ischemic stroke; large vessel occlusion; first pass effect
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MDPI and ACS Style

Meder, G.; Żuchowski, P.; Skura, W.; Palacz-Duda, V.; Świtońska, M.; Nowaczewska, M.; Sokal, P. Mechanical Thrombectomy in Stroke. Experience from Switching from Stent Retriever Only to Stent Retriever Combined with Aspiration Catheter. J. Clin. Med. 2021, 10, 1802. https://doi.org/10.3390/jcm10091802

AMA Style

Meder G, Żuchowski P, Skura W, Palacz-Duda V, Świtońska M, Nowaczewska M, Sokal P. Mechanical Thrombectomy in Stroke. Experience from Switching from Stent Retriever Only to Stent Retriever Combined with Aspiration Catheter. Journal of Clinical Medicine. 2021; 10(9):1802. https://doi.org/10.3390/jcm10091802

Chicago/Turabian Style

Meder, Grzegorz, Paweł Żuchowski, Wojciech Skura, Violetta Palacz-Duda, Milena Świtońska, Magdalena Nowaczewska, and Paweł Sokal. 2021. "Mechanical Thrombectomy in Stroke. Experience from Switching from Stent Retriever Only to Stent Retriever Combined with Aspiration Catheter" Journal of Clinical Medicine 10, no. 9: 1802. https://doi.org/10.3390/jcm10091802

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