Systematic Review on Endovascular Access to Intracranial Arteries for Mechanical Thrombectomy in Acute Ischemic Stroke

Author(s):  
Joaquin Penide ◽  
Mahmood Mirza ◽  
Ray McCarthy ◽  
Jens Fiehler ◽  
Pasquale Mordasini ◽  
...  
2019 ◽  
Vol 24 (5) ◽  
pp. 558-571 ◽  
Author(s):  
Kartik Bhatia ◽  
Hans Kortman ◽  
Christopher Blair ◽  
Geoffrey Parker ◽  
David Brunacci ◽  
...  

OBJECTIVEThe role of mechanical thrombectomy in pediatric acute ischemic stroke is uncertain, despite extensive evidence of benefit in adults. The existing literature consists of several recent small single-arm cohort studies, as well as multiple prior small case series and case reports. Published reports of pediatric cases have increased markedly since 2015, after the publication of the positive trials in adults. The recent AHA/ASA Scientific Statement on this issue was informed predominantly by pre-2015 case reports and identified several knowledge gaps, including how young a child may undergo thrombectomy. A repeat systematic review and meta-analysis is warranted to help guide therapeutic decisions and address gaps in knowledge.METHODSUsing PRISMA-IPD guidelines, the authors performed a systematic review of the literature from 1999 to April 2019 and individual patient data meta-analysis, with 2 independent reviewers. An additional series of 3 cases in adolescent males from one of the authors’ centers was also included. The primary outcomes were the rate of good long-term (mRS score 0–2 at final follow-up) and short-term (reduction in NIHSS score by ≥ 8 points or NIHSS score 0–1 at up to 24 hours post-thrombectomy) neurological outcomes following mechanical thrombectomy for acute ischemic stroke in patients < 18 years of age. The secondary outcome was the rate of successful angiographic recanalization (mTICI score 2b/3).RESULTSThe authors’ review yielded 113 cases of mechanical thrombectomy in 110 pediatric patients. Although complete follow-up data are not available for all patients, 87 of 96 (90.6%) had good long-term neurological outcomes (mRS score 0–2), 55 of 79 (69.6%) had good short-term neurological outcomes, and 86 of 98 (87.8%) had successful angiographic recanalization (mTICI score 2b/3). Death occurred in 2 patients and symptomatic intracranial hemorrhage in 1 patient. Sixteen published thrombectomy cases were identified in children < 5 years of age.CONCLUSIONSMechanical thrombectomy may be considered for acute ischemic stroke due to large vessel occlusion (ICA terminus, M1, basilar artery) in patients aged 1–18 years (Level C evidence; Class IIb recommendation). The existing evidence base is likely affected by selection and publication bias. A prospective multinational registry is recommended as the next investigative step.


2020 ◽  
Vol 47 (5) ◽  
pp. 386-392 ◽  
Author(s):  
Alessandro Sgreccia ◽  
Giuseppe Carità ◽  
Oguzhan Coskun ◽  
Federico Di Maria ◽  
Hakim Benamer ◽  
...  

2021 ◽  
Vol 12 ◽  
Author(s):  
Xuesong Bai ◽  
Xiao Zhang ◽  
Jie Wang ◽  
Yinhang Zhang ◽  
Adam A. Dmytriw ◽  
...  

Background: First-pass effect (FPE) is increasingly recognized as a predictor of good outcome in large vessel occlusion (LVO). This systematic review and meta-analysis aimed to elucidate the factors influencing recanalization after mechanical thrombectomy (MT) with FPE in treating acute ischemic stroke (AIS).Methods: Main databases were searched for relevant randomized controlled trials (RCTs) and observational studies reporting influencing factors of MT with FPE in AIS. Recanalization was assessed by the modified thrombolysis in cerebral ischemia (mTICI) score. Both successful (mTICI 2b-3) and complete recanalization (mTICI 2c-3) were observed. Risk of bias was assessed through different scales according to study design. The I2 statistic was used to evaluate the heterogeneity, while subgroup analysis, meta-regression, and sensitivity analysis were performed to investigate the source of heterogeneity. Visual measurement of funnel plots was used to evaluate publication bias.Results: A total of 17 studies and 6,186 patients were included. Among them, 2,068 patients achieved recanalization with FPE. The results of meta-analyses showed that age [mean deviation (MD):1.21,95% confidence interval (CI): 0.26–2.16; p = 0.012], female gender [odds ratio (OR):1.12,95% CI: 1.00–1.26; p = 0.046], diabetes mellitus (DM) (OR:1.17,95% CI: 1.01–1.35; p = 0.032), occlusion of internal carotid artery (ICA) (OR:0.71,95% CI: 0.52–0.97; p = 0.033), occlusion of M2 segment of middle cerebral artery (OR:1.36,95% CI: 1.05–1.77; p = 0.019), duration of intervention (MD: −27.85, 95% CI: −42.11–13.58; p &lt; 0.001), time of onset to recanalization (MD: −34.63, 95% CI: −58.45–10.81; p = 0.004), general anesthesia (OR: 0.63,95% CI: 0.52–0.77; p &lt; 0.001), and use of balloon guide catheter (BGC) (OR:1.60,95% CI: 1.17–2.18; p = 0.003) were significantly associated with successful recanalization with FPE. At the same time, age, female gender, duration of intervention, general anesthesia, use of BGC, and occlusion of ICA were associated with complete reperfusion with FPE, but M2 occlusion and DM were not.Conclusion: Age, gender, occlusion site, anesthesia type, and use of BGC were influencing factors for both successful and complete recanalization after first-pass thrombectomy. Further studies with more comprehensive observations indexes are need in the future.


Author(s):  
Anna Lambrinos ◽  
Alexis K. Schaink ◽  
Irfan Dhalla ◽  
Timo Krings ◽  
Leanne K. Casaubon ◽  
...  

Author(s):  
Allison J Zhong ◽  
Allison J Zhong ◽  
Haris Kamal ◽  
Anaz Uddin ◽  
Eric Feldstein ◽  
...  

Introduction : Despite the success of mechanical thrombectomy in large vessel acute ischemic stroke, there remain cases where recanalization fails due to difficult anatomic access or peripheral arterial occlusive disease. In these cases, transbrachial or transcarotid access may be considered as alternatives to the transfemoral or increasingly popular transradial route. Of these approaches, the transcarotid route has not gained prominence due to safety concerns despite its prior routine use in angiography. In this study, we conducted a systematic review and meta‐analysis of the literature in order to better summate the data on transcarotid access. Methods : Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA) guidelines were used in order to perform a systematic review of articles published from 2010–2020 summarizing pre‐intervention characteristics of patients undergoing mechanical thrombectomy via transcarotid puncture. We performed a meta‐analysis focused on clinical outcomes, reperfusion times (in minutes), and overall complication rates of transcarotid access for mechanical thrombectomy. Pooled analyses were performed to examine predictors of complications and outcomes. Results : Six studies describing 72 patients, out of 80 attempts at carotid access (90% success rate), were included. Age ranged from the 5th to 9th decade (median 7.5). Initial National Institutes of Health Stroke Scale (NIHSS) score ranged from 4 to 28 (median 17). Direct carotid puncture was most often used as a rescue technique (86% of patients) secondary to failed femoral access. Successful recanalization was achieved in 85% of patients. Good 90‐day outcome (modified Rankin Scale ≤2) was achieved in 27% of patients. Median carotid puncture‐to‐reperfusion time was 32 minutes (CI = 24–40, p < 0.001). Cervical complications occurred at a rate of 23% (CI = 14– 35%, p < 0.001). Only one complication resulted in a fatal outcome and only one required an intervention (each 1.4%). Use of IV thrombolysis did not significantly predict better mTICI outcome. Complications were not predicted by use of IV thrombolysis or closure method. Carotid puncture as the primary access route was associated with significantly shorter procedure times and carotid puncture as a rescue route was associated with comparable procedure times to the classic femoral access route. Conclusions : Our results suggest that, despite current concerns about the use of transcarotid access, this technique can be considered a viable backup route in cases of failed transfemoral or transradial access. Though this method requires further research to better understand the variables that might play into clinical decision‐making for its use in acute stroke management, it is a promising area of study that could allow for thrombectomy in patients where it would otherwise be aborted.


Stroke ◽  
2014 ◽  
Vol 45 (suppl_1) ◽  
Author(s):  
Toshiya Osanai ◽  
Vinary Pasupuleti ◽  
Abhishek Deshpande ◽  
Priyaleela Thota ◽  
Yuani Roman ◽  
...  

Introduction: Endovascular (intra-arterial, IA) therapy for acute ischemic stroke has become part of acute therapy , but limited randomized clinical trials have had inconsistent results. We sought to evaluate efficacy and safety of endovascular therapy in - randomized clinical trials . Methods: We performed a systematic review of literature for randomized clinical trials of endovascular therapy with thrombolytic or mechanical reperfusion compared with comparator groups without IA therapy. Use of systemic thrombolysis was not excluded. Primary outcome was modified Rankin scale of disability of 0-2 at 90 days and secondary outcomes of mortality at 90 days and symptomatic intracranial hemorrhage was noted. Two groups of independent reviewers searched and identified studies and abstracted data. Random-effects meta-analysis was performed. Subgroups were analyzed by study design characteristics. Results: Systematic search identified 10 studies with 1572 subjects, of which 9 studies reported the primary outcome. IA therapy was associated with good outcome at 90 days (Odds ratio (OR) =1.28; 95% CI, 1.01 to 1.62; p=0.04), but there was significant heterogeneity with p of 0.03. Among 3 trials (n=1136) comparing mechanical thrombectomy with control, mechanical thrombectomy was not superior to control with good outcome (OR=0.98; 95 % CI, 0.85 to 1.14; p=0.83). Patients with IA therapy significantly have good outcome in studies without systematic thrombolysis in the comparator (OR=1.55; 95 % CI, 1.05 to 2.29; p=0.03) and required vessel occlusion for randomization (OR=1.54; 95 % CI, 1.10 to 2.14; p=0.01). Mortality was unchanged with IA therapy (OR=0.92; 95 % CI, 0.75 to 1.13; p=0.45) and there was no difference in symptomatic hemorrhage (OR=1.13; 95 % CI, 0.74 to 1.74; p=0.56). Conclusion: IA therapy has a small but significant increase in good outcomes for patients with acute ischemic stroke without increasing mortality and symptomatic hemorrhages.


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