Mechanical Thrombectomy of Acutely Occluded Flow-Diverters – Neuroendovascular Surgical Technique Demonstration: 2-Dimensional Operative Video

2019 ◽  
Vol 19 (2) ◽  
pp. E176-E177
Author(s):  
Jorge A Roa ◽  
David M Hasan ◽  
Edgar A Samaniego
Keyword(s):  
Surgical Technique ◽  
Intracranial Aneurysms ◽  
Mechanical Thrombectomy ◽  
Aspiration Thrombectomy ◽  
Pharmacological Agents ◽  
Intravenous Tissue Plasminogen Activator ◽  
Vessel Injury ◽  
Technical Report ◽  
Tissue Plasminogen ◽  
Flow Diverters

Abstract Flow-diversion with pipeline embolization devices (PED, Medtronic, Dublin, Ireland) is widely used for embolization of complex intracranial aneurysms.1 In-stent thrombosis can be a dreadful complication after PED deployment. Intra-arterial glycoprotein IIb-IIIa inhibitors and intravenous tissue plasminogen activator have been used in an attempt to achieve recanalization.2 However, large clots may not be effectively dissolved by pharmacological agents, thus requiring mechanical thrombectomy (MT).3 Our group recently published the first technical report on successful MT of acutely occluded PEDs in 2 patients.4 Here, we showcase the successful MT of a patient who sustained acute in-stent PED thrombosis. Informed written consent was obtained. In this case, we combined stentriever and contact aspiration thrombectomy techniques. We highlight important pitfalls and tips to prevent PED displacement, removal or vessel injury during endovascular manipulation. The most important consideration is to deploy the distal end of the stentriever inside the PED but also as distally as possible. Thus, correct apposition and alignment of the distal markers of both devices is performed under “native” unsubstracted fluoroscopic view (for better PED visualization) before MT. In this surgical video we describe the technique in detail.

Republished: A novel route of revascularization in basilar artery occlusion and review of the literature

2015 ◽  
Vol 8 (7) ◽  
pp. e25-e25 ◽  
Author(s):  
Alejandro Morales ◽  
Phillip Vaughan Parry ◽  
Ashutosh Jadhav ◽  
Tudor Jovin
Keyword(s):  
Basilar Artery ◽  
Mechanical Thrombectomy ◽  
Antiplatelet Agents ◽  
Artery Occlusion ◽  
Direct Access ◽  
Basilar Artery Occlusion ◽  
Review Of The Literature ◽  
Intravenous Tissue Plasminogen Activator ◽  
Tissue Plasminogen ◽  
Angioplasty And Stenting

Ischemia of the basilar artery is one of the most devastating types of arterial occlusive disease. Despite treatment of basilar artery occlusions (BAO) with intravenous tissue plasminogen activator, antiplatelet agents, intra-arterial therapy or a combination, fatality rates remain high. Aggressive recanalization with mechanical thrombectomy is therefore often necessary to preserve life. When direct access to the basilar trunk is not possible, exploration of chronically occluded vessels through collaterals with angioplasty and stenting creates access for manual aspiration. We describe the first report of retrograde vertebral artery (VA) revascularization using thyrocervical collaterals for anterograde mechanical aspiration of a BAO followed by stenting of the chronically occluded VA origin. Our novel retrograde–anterograde approach resulted in resolution of the patient's clinical stroke syndrome.

Severe hemiparesis as a prehospital tool to triage stroke severity: a pilot study to assess diagnostic accuracy and treatment times

2015 ◽  
Vol 8 (8) ◽  
pp. 775-777 ◽  
Author(s):  
Rishi Gupta ◽  
Marissa Manuel ◽  
Kumiko Owada ◽  
Samish Dhungana ◽  
Leslie Busby ◽  
...  
Keyword(s):  
Pilot Study ◽  
Endovascular Therapy ◽  
Acute Treatment ◽  
Mechanical Thrombectomy ◽  
Stroke Severity ◽  
Intravenous Tissue Plasminogen Activator ◽  
Number Of Patients ◽  
Tissue Plasminogen ◽  
The Times ◽  
The Impact

IntroductionWith the publication of the recent trials showing the tremendous benefits of mechanical thrombectomy, opportunities exist to refine prehospital processes to identify patients with larger stroke syndromes.Materials and methodsWe retrospectively reviewed consecutive patients who were brought via scene flight from rural parts of the region to our institution, from December 1, 2014 to June 5, 2015, with severe hemiparesis or hemiplegia. We assessed the accuracy of the diagnosis of stroke and the number of patients requiring endovascular therapy. Moreover, we reviewed the times along the pathway of patients who were treated with endovascular therapy.Results45 patients were brought via helicopter from the field to our institution. 27 (60%) patients were diagnosed with an ischemic stroke. Of these, 12 (26.7%) were treated with mechanical thrombectomy and 6 (13.3%) with intravenous tissue plasminogen activator alone. An additional three patients required embolization procedures for either a dural arteriovenous fistula or cerebral aneurysm. Thus a total of 15 (33%) patients received an endovascular procedure and 21/45 (46.7%) received an acute treatment. For patients treated with thrombectomy, the median time from first medical contact to groin puncture was 101 min, with 8 of the 12 patients (66.7%) being discharged to home.ConclusionsWe have presented a pilot study showing that severe hemiparesis or hemiplegia may be a reasonable prehospital tool in recognizing patients requiring endovascular treatment. Patients being identified earlier may be treated faster and potentially improve outcomes. Further prospective controlled studies are required to assess the impact on outcomes and cost effectiveness using this methodology.

scholarly journals Intravenous Tissue Plasminogen Activator in Combination With Mechanical Thrombectomy: Clot Migration, Intracranial Bleeding, and the Impact of “Drip and Ship” on Effectiveness and Outcomes

2020 ◽  
Vol 11 ◽  
Author(s):  
Adam Chang ◽  
Elham Beheshtian ◽  
Edward J. Llinas ◽  
Oluwatoyin R. Idowu ◽  
Elisabeth B. Marsh
Keyword(s):  
Plasminogen Activator ◽  
Tissue Plasminogen Activator ◽  
Mechanical Thrombectomy ◽  
Hemorrhagic Transformation ◽  
Anterior Circulation ◽  
Vessel Occlusion ◽  
Intravenous Tissue Plasminogen Activator ◽  
Tissue Plasminogen ◽  
The Impact ◽  
Iv Tpa

Purpose: Intravenous tissue plasminogen activator (tPA) is indicated prior to mechanical thrombectomy (MT) to treat large vessel occlusion (LVO). However, administration takes time, and rates of clot migration complicating successful retrieval and hemorrhagic transformation may be higher. Given time-to-effectiveness, the benefit of tPA may vary significantly based on whether administration occurs at a thrombectomy-capable center or transferring hospital.Methods: We prospectively evaluated 170 individuals with LVO involving the anterior circulation who underwent MT at our Comprehensive Stroke Center over a 3.5 year period. Two thirds (n = 114) of patients were admitted through our Emergency Department (ED). The other 33% were transferred from outside hospitals (OSH). Patients meeting criteria were bridged with IV tPA; the others were treated with MT alone. Clot migration, recanalization times, TICI scores, and hemorrhage rates were compared for those bridged vs. treated with MT alone, along with modified Rankin scores (mRS) at discharge and 90-day follow-up. Multivariable regression was used to determine the relationship between site of presentation and effect of tPA on outcomes.Results: Patients presenting to an OSH had longer mean discovery to puncture/recanalization times, but were actually more likely to receive IV tPA prior to MT (70 vs. 42%). The rate of clot migration was low (11%) and similar between groups, though slightly higher for those receiving IV tPA. There was no difference in symptomatic ICH rate after tPA. TICI scores were also not significantly different; however, more patients achieved TICI 2b or higher reperfusion (83 vs. 67%, p = 0.027) after tPA, and TICI 0 reperfusion was seen almost exclusively in patients who were not treated with tPA. Those bridged at an OSH required fewer passes before successful recanalization (2.4 vs. 1.6, p = 0.037). Overall, mean mRS scores on discharge and at 90 days were significantly better for those receiving IV tPA (3.9 vs. 4.6, 3.4 vs. 4.4 respectively, p ~ 0.01) and differences persisted when comparing only patients recanalized in under 6 h.Conclusion: Independent of site of presentation, IV tPA before MT appears to lead to better radiographic outcomes, without increased rates of clot migration or higher intracranial hemorrhage risk, and overall better functional outcomes.

scholarly journals Cost-effectiveness of mechanical thrombectomy using stent retriever after intravenous tissue plasminogen activator compared with intravenous tissue plasminogen activator alone in the treatment of acute ischaemic stroke due to large vessel occlusion in Spain

2017 ◽  
Vol 2 (3) ◽  
pp. 272-284 ◽  
Author(s):  
Fernando de Andrés-Nogales ◽  
María Álvarez ◽  
María Ángeles de Miquel ◽  
Tomás Segura ◽  
Alberto Gil ◽  
...  
Keyword(s):  
Cost Effectiveness ◽  
Plasminogen Activator ◽  
Tissue Plasminogen Activator ◽  
Acute Ischaemic Stroke ◽  
Mechanical Thrombectomy ◽  
Stent Retriever ◽  
Intravenous Tissue Plasminogen Activator ◽  
Life Years ◽  
Tissue Plasminogen ◽  
Quality Adjusted Life

Introduction To assess the cost-effectiveness of stent-retriever mechanical thrombectomy and intravenous tissue plasminogen activator compared with intravenous tissue plasminogen activator alone in patients with acute ischaemic stroke due to large vessel occlusions in Spain. Materials and methods Clinical data were taken from the SWIFT PRIME clinical trial. A lifetime Markov state transition model defined by the modified Rankin Scale score was developed to estimate costs and health outcomes (life years gained and quality adjusted life years). A Spanish National Health System perspective (direct medical costs) was considered. Resource utilisation and utilities were obtained from available published data and endorsed by an expert panel. Costs (€, 2016) were obtained from various Spanish sources. Deterministic and probabilistic sensitivity analyses were performed. Results Stent-retriever thrombectomy after intravenous tissue plasminogen activator was associated with better outcomes (1.17 life years gained and 2.51 quality adjusted life years) and savings of €44,378, resulting in a dominant therapy over intravenous tissue plasminogen activator alone. A net monetary benefit of €119,744 was obtained considering a willingness-to-pay threshold of €30,000/quality adjusted life year gained. The combined therapy was also dominant in all sensitivity analyses, deterministic and probabilistic. Discussion The results were consistent with a previously published cost-effectiveness analysis and reinforce the likeliness of the selection of stent-retriever mechanical thrombectomy plus intravenous tissue plasminogen activator over intravenous tissue plasminogen activator alone. Conclusion Stent-retriever thrombectomy after intravenous tissue plasminogen activator is a dominant alternative over intravenous tissue plasminogen activator alone (more effective and less costly) for the treatment of acute ischaemic stroke patients with large vessel occlusions in the Spanish setting.

Republished: Basilar artery occlusion in a child treated successfully with mechanical thrombectomy using ADAPT

2016 ◽  
Vol 9 (1) ◽  
pp. e2-e2 ◽  
Author(s):  
Jonathan Lena ◽  
Ramin Eskandari ◽  
Libby Infinger ◽  
Kyle M Fargen ◽  
Alejandro Spiotta ◽  
...  
Keyword(s):  
Mechanical Thrombectomy ◽  
Case Reports ◽  
Pediatric Population ◽  
Artery Occlusion ◽  
Basilar Artery Occlusion ◽  
First Case ◽  
Intravenous Tissue Plasminogen Activator ◽  
First Pass ◽  
Tissue Plasminogen ◽  
Arterial Thrombolysis

Acute ischemic stroke (AIS) in the pediatric population is rare. Furthermore, it is common for physicians to take significantly longer diagnosing a posterior circulation stroke in a child than in an adult. There are increasing case reports in the literature of treating AIS in children with intravenous tissue plasminogen activator, intra-arterial thrombolysis, and/or mechanical thrombectomy. We present the first case of pediatric AIS treated using a direct aspiration first pass technique (ADAPT) as a means of mechanical thrombectomy.

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