Abstract:

Article presents a retrospective analysis of using the modified way experience in removing the occlusive substrate from cerebral vessels in the ischemic stroke acute phase after failed standard thrombectomy.

Aim: to study the efficacy and advantages of thrombectomy technique from intracranial arteries in patients with acute ischemic stroke combining a stent-retriever with reperfusion catheter in comparison with the standard stent retriever thromboextraction.

Methods: we analyzed 54 hospital charts of patients who had underwent endovascular recanalization of intracranial large vessel occlusion in acute ischemic stroke. Patients were divided into two equal groups, depending on thrombus removal method. Standard stent-retriever thrombectomy with a balloon guide-catheter was performed as the first stage in both groups. In 27 cases (1st group), after standard stent-retriever technique failed, we carried out combination of retriever extraction with distal aspiration and a guiding balloon-catheter. If we couldn’t safely insert stent-retriever into catheter of distal approach (during thrombectomy), we switched to vacuum aspiration from guiding balloon-catheter (vacuum-blocked) and removed stent-retriever, microcatheter and distal approach catheter simultaneously without reducing tension. In 27 patients (2nd group) after standard thrombectomy failed we repeated this technique several times.

Results: embolic complications relative risk was 2,249, 95% CI (1,126 - 4,492) and reperfusion mTICI 3 100% versus 74,07% rate was higher in the first group, in comparison with the second group. Other complications and hospital outcomes of disease did not differ between groups.

Conclusion: a stent retriever combined with distal aspiration and a simultaneous transition to vacuum-blocked extraction using after an unsuccessful standard thrombectomy increases the efficiency of complete reperfusion by 25%. Its use is 1,8 times safer than standard thrombectomy in terms of embolic complications.

Abstract:

Aim: was to assess efficiency of mechanical thrombectomy using stent-retriever pREset in patients with acute ischemic stroke (AIS).

Materials and methods: study included 27 patients with AIS. The average age of patients was 66 years, female - 12(44,4%). The average NIHSS was 20. Occlusion of middle cerebral artery (MCA) was observed in 21(77,8%) patients, internal carotid artery (ICA) - 4 patients, basilar artery - 2 patients.

Results: effective recovery of cerebral blood flow (TICI2b-3) was achieved in 22 patients (81,5%). The frequency of distal embolisms was 11,1%. The frequency of symptom hemorrhagic transformation was 7,4%. A favorable neurological outcome (mRs 0-2) was observed in 29,6% of patients, mortality was 25,9%.

Conclusions: the use of stent-retriever pREset allows to efficiently restore blood flow during occlusion of large cerebral arteries.

References

1.      Powers W., Rabinstein A., Ackerson T., et al. 2018 Guidelines for the early management of patients with acute ischemic stroke a guideline for healthcare professionals from the American heart association/American stroke association. Stroke. 2018; (49): DOI 10.1161/ STR.0000000000000158.

2.      Savello A.V., Voznyuk I.A., Svistov D.V. Vnutrisosudistoe lechenie ishemicheskogo insul'ta v ostrejshem periode (klinicheskie rekomendacii) [Intravascular treatment of ischemic stroke in the acute period (clinical recommendations)]. Sankt-Peterburg. 2015; [In Russ].

3.      Volodyuhin M.YU., Hasanova D.R., Dyomin T.V., i dr. Vnutriarterial'naya reperfuzionnaya terapiya u pacientov s ostrym ishemicheskim insul'tom [Intraarterial reperfusion therapy in patients with acute ischemic stroke.]. Medicinskij sovet. 2015; (10): 6-11 [In Russ].

4.      Krylov V.V., Savello A.V., Volodyuhin M.YU. Rentgenehdovaskulyarnoe lechenie ostrogo ishemicheskogo insul'ta [Endovascular treatment of acute ischemic stroke.]. Rukovodstvo. Moskva. 2017; 120 s [In Russ].

5.      Schwaiger B., Kober F., Gersing A., et al. The pREset stent retriever for endovascular treatment of stroke caused by MCA occlusion: safety and clinical outcome. Clin Neuroradiol. 2016; (26): 47-55.

6.      Machi P., Jourdan F., Ambard D., et. al. Experimental evaluation of stent retrievers mechanical properties and effectiveness. J. Neurolntervent. Surg. 2016; (0): 1-7.

7.      Prothmann S., Schwaiger B., Gersing A., et al. Recanalization of Thrombo-Embolic Ischemic Stroke with pREset (ARTESp): the impact of occlusion time on clinical outcome of directly admitted and transferred patients. J. Neuro. Intervent. Surg. 2017; (9): 817-822.

8.      Shams T., Zaidat O., Yavagal D., et al. Society of Vascular and Interventional Neurology (SVIN) Stroke Interventional Laboratory Consensus (SILC) criteria: A 7M management approach to developing a stroke interventional laboratory in the era of stroke thrombectomy for large vessel occlusions. Intervent. Neurol. 2016; (5): 1-28.

9.      Seker F., Pfaff J., Wolf M., et al. Correlation of thrombectomy maneuver count with recanalization success and clinical outcome in patients with ischemic stroke. Am. J. Neuroradiol. 2017; (38): 1368-1371.

10.    Mokin M., Nagesh S., Ionita C., et al. Comparison of modern stroke thrombectomy approaches using an in vitro cerebrovascular occlusion model. Am. J. Neuroradiol. 2016; (36): 547-551.

11.    Raymond J., Ghostine J., Khoury N., et al. Endovascular interventions for acute stroke: past practice and current research. J. Neurolntervent.Surg. 2017; (9): 1-4.

Abstract:

Ischemic stroke (AS) is one of the leading causes of death and disability of the working populatior around the world. According to modern recommendations, mechanical thrombectomy with use of stent-retrievers is the most effective method of treatment for stroke. with localization of thrombus in large cerebral arteries of the carotid basin.

The article presents a literature review devoted to various stent-retrievers, their technical characteristics, and their potential for application in the treatment of acute cerebrovascular accident, ischemic type. The analysis and comparative characteristics of existing modern stent-retrievers are presented, depending on the diameter and artery bend, thromb characteristics, stent characteristics. 

References

1.     Savello A.V., Voznjuk I.A., Svistov D.V. Vnutrisosudistoe lechenie ishemicheskogo insul'ta v ostrejshem periode (klinicheskie rekomendacii) [Intravascular treatment of ischemic stroke in acute period (clinical recommendations)]. Sankt-Peterburg. 2015.

2.     Powers W., Derdeyn C., Biller J., et al. Guidelines for the early management of patients with acute ischemic stroke regarding endovascular treatment: a guideline for healthcare professionals from the American Heart Association //American Stroke Association Stroke. published online June 29, 2015.

3.     Abou-Chebl A., Bajzer C.T., Krieger D.W., et al. Multimodal therapy for the treatment of severe ischemic stroke combining GP IIb/IIIa antagonists and angioplasty after failure of thromboysis. Stroke. 2005. (36): 2286-2288.

4.     Levy E.I., Ecker R.D., Horowitz M.B., et al. Stent-assisted intracranial recanalization for acute stroke: early results. Neurosurgery. 2006 (58): 458-463.

5.     Gupta R., Vora N.A., Horowitz M.B., et al. Multimodal reperfusion therapy for acute ischemic stroke: factors predicting vessel recanalization. Stroke. 2006 (37): 986-990.

6.     Castano C., Dorado L., Guerrero C., et al. Mechanical thrombectomy with the Solitaire AB device in large artery occlusions of the anterior circulation: a pilot study. Stroke. 2010 (41): 1836-1840.

7.     Kvan der Marel K., Chueh J.Y, Brooks O.W., et al. Quantitative assessment of device-clot interaction for stent retriever thrombectomy. JNeurointervSurg. 2016 (0): 1-6.

8.     Haussen D.,  Lima A., Nogueira R. The Trevo XP 3x20 mm retriever (‘Baby Trevo’) for the treatment of distal intracranial occlusions. J NeuroIntervent Surg. 2016 (8): 2951299.

9.     Kahles T., Garcia-Esperon C., Zeller S., et al. Mechanical thrombectomy using the new ERIC retrieval device is feasible, efficient, and safe in acute ischemic stroke: a swiss stroke center experience. Am. J. Neuroradiol. 2016 (37): 114 -119.

10.   Raoult H., Redjem H., Bourcier R., et al. Mechanical thrombectomy with the ERIC retrieval device: initial experience. J. NeuroIntervent. Surg. 2016 (0): 1-4.

11.   Machi P, Jourdan F., Ambard D., et. al. Experimental evaluation of stent retrievers mechanical properties and effectiveness J. NeuroIntervent. Surg. 2016 (0):1-7.

12.   Schwaiger B., Gersing A., Zimmer C., et al. The curved MCA: influence of vessel anatomy on recanalization results of mechanical thrombectomy after acute ischemic stroke. Am. J. Neuroradiol. 2015 (36): 971-976.

13.   Tetsuya Hashimoto, Mikito Hayakawa, Naoko Funatsu, et al., Histopathologic analysis of retrieved thrombi associated with successful reperfusion after acute stroke thrombectomy. Stroke. 2016 (47): 3035-3037.

14.   Mokin M., Morr S., Natarajan S., et al. Thrombus density predicts successful recanalization with Solitaire stent retriever thrombectomy in acute ischemic stroke. J. Neurointerv. Surg. 2015 (7): 104-107.

15.   Bourcier R., Volpi S., Guyomarch B., et al., Susceptibility vessel sign on MRI predicts favorable clinical outcome in patients with anterior circulation acute stroke treated with mechanical thrombectomy. Am. J. Neuroradi- -2353.

16.   Haussen D., Rebello L., Nogueira R. Optimizating clot retrieval in acute stroke: The push and fluff technique for closed-cell stentrievers. Stroke. 2015 (46): 2838-42.