Analysis of 565 thrombectomies for anterior circulation stroke: A Brazilian registry

2021 ◽  
pp. 159101992110269
Author(s):  
Vitor Rodrigues Fornazari ◽  
Luís Henrique de Castro-Afonso ◽  
Guilherme Seizem Nakiri ◽  
Thiago Giansante Abud ◽  
Lucas Moretti Monsignore ◽  
...  
Keyword(s):  
Randomized Trials ◽  
Mechanical Thrombectomy ◽  
Real Life ◽  
Intravenous Thrombolysis ◽  
Developed Countries ◽  
Anterior Circulation ◽  
Symptomatic Intracranial Hemorrhage ◽  
The Mean ◽  
Poor Outcomes ◽  
Mean Time

Introduction The benefits of mechanical thrombectomy in the treatment of patients with acute stroke due to large vessel occlusions (LVOs) have been extensively demonstrated by randomized trials and registries in developed countries. However, data on thrombectomy outside controlled trials are scarce in developing countries. The aim of this study was to assess the safety and efficacy, and to investigate the predictors for good and poor outcomes of thrombectomy for treatment of AIS due to anterior circulation LVOs in Brazil. Materials and Methods This was a single center registry of thrombectomy in the treatment of stroke caused by anterior circulation LVOs. Between 2011 and 2019, a total of 565 patients were included. Results the mean baseline NIHSS score on admission was 17.2. The average baseline ASPECTS was 8, and 91.0% of patients scored ≥6. Half of the patients received intravenous thrombolysis. The mean time from symptom onset to arterial puncture was 296.4 minutes. The mean procedure time was 61.4 minutes. The rates of the main outcomes were recanalization (TICI 2b-3) 85.6%, symptomatic intracranial hemorrhage (sICH) 8,1%, good clinical outcome (mRS=0-2) 43,5%, and mortality 22.1% at three months. Conclusions This study demonstrates the efficacy and safety of mechanical thrombectomy for treatment of patients with AIS of the anterior circulation in real-life conditions under limited facilities and resources. The results of the present study were relatively similar to those of large trials and population registers of developed countries.

scholarly journals Endovascular Therapy vs. Thrombolysis in Pre-stroke Dependent Patients With Large Vessel Occlusions Within the Anterior Circulation

2021 ◽  
Vol 12 ◽  
Author(s):  
Andreas Kastrup ◽  
Christian Roth ◽  
Maria Politi ◽  
Maria Alexandrou ◽  
Helmut Hildebrandt ◽  
...  
Keyword(s):  
Randomized Trials ◽  
Intravenous Thrombolysis ◽  
Treatment Modalities ◽  
Hospital Death ◽  
Anterior Circulation ◽  
The Past ◽  
Poor Outcome ◽  
Symptomatic Intracranial Hemorrhage ◽  
The Impact ◽  
Case Basis

Background: In the past few years, several randomized trials have clearly shown that endovascular treatment (ET) in addition to intravenous thrombolysis (IVT) is superior to IVT alone in patients with proximal cerebral arterial occlusions. However, the effectiveness of ET in pre-stroke dependent patients (modified Rankin Scale ≥3) is uncertain.Methods: Using our prospectively obtained stroke database, we analyzed the impact of pre-stroke dependence on the rates of poor outcome (discharge mRS 5–6), in-hospital death, infarct sizes, and symptomatic intracranial hemorrhage (SICH) in patients with distal intracranial carotid artery M1 and M2 occlusions during two time periods.Results: From 1/2008 to 10/2012, a total of 544 patients (455 without and 89 with dependence) were treated with IVT, and from 11/2012 to 12/2019 a total of 1,061 patients (919 without and 142 with dependence) received ET (with or without IVT). Irrespective of the treatment modality, the dependent patients had significantly higher rates of poor outcome (55 vs. 32%, p < 0.001), death (24 vs. 11%; p < 0.001), or SICH (8.2 vs. 3.6%, p < 0.01) than independent patients. In dependent patients, ET significantly reduced the rates of poor outcome (49 vs. 64%, p < 0.01) and led to smaller infarcts, whereas the rates of in-hospital death (25 vs. 22%; p = 0.6) or SICH (8.5 vs. 7.9%, p = 0.9) were comparable between both treatment modalities.Conclusions: Compared with IVT, ET avoids poor outcome and leads to smaller infarcts in dependent patients. However, the overall high rates of poor outcome in this patient population stress the importance to perform decisions based on a case-by-case basis.

Abstract P20: Bridging Therapy Increases Hemorrhagic Complications Without Improving Functional Outcomes in Atrial Fibrillation Associated Stroke

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Feras Akbik ◽  
Ali Alawieh ◽  
C. Michael Cawley ◽  
Brian Howard ◽  
Frank Tong ◽  
...  
Keyword(s):  
High Risk ◽  
Clinical Outcomes ◽  
Functional Outcomes ◽  
Randomized Trials ◽  
Mechanical Thrombectomy ◽  
Intravenous Thrombolysis ◽  
Bridging Therapy ◽  
Anterior Circulation ◽  
Hemorrhagic Complications ◽  
Baseline Characteristics

* on behalf of the Stroke Thrombectomy and Aneurysm Registry (STAR) Collaborators Introduction: Intravenous thrombolysis complications are enriched in AF associated stroke, as these patients have worse functional outcomes, less effective recanalization, and increased rates of hemorrhagic complications. These data suggest that AF patients may be at particularly high risk for complications of bridging therapy for large vessel occlusions treated with mechanical thrombectomy (MT). Here we determine whether clinical outcomes differ in AF associated stroke treated with MT and bridging therapy. Methods: We performed a retrospective cohort study of the Stroke and Aneurysm Registry (STAR) from January 2015 to December 2018 and identified 4,169 patients who underwent MT for an anterior circulation stroke, 1,517 (36.4 %) of which had comorbid AF. Prospectively defined baseline characteristics and clinical outcomes were compared. Results: Hemorrhagic complications after MT were similar in patients with or without AF. In patients without AF, bridging therapy improved 90-day outcomes (aOR 1.32, 1.02-1.74, p<0.05) without increasing hemorrhagic complications. In patients with AF, bridging therapy independently predicted hemorrhagic complications in AF patients (aOR 2.08, 1.06-4.06, p<0.033) without improving functional outcomes. Conclusions: Bridging therapy in AF patients undergoing thrombectomy independently increased the odds of intracranial hemorrhage and did not improve functional outcomes. AF patients may represent a high-risk subgroup for thrombolytic complications. Randomized trials are warranted to determine whether patients with AF associated stroke may benefit by deferring bridging therapy at thrombectomy-capable centers.

scholarly journals In-Hospital Intravenous Thrombolysis Offers No Benefit in Mechanical Thrombectomy in Optimized Tertiary Stroke Center Setting

2020 ◽  
Author(s):  
Juha-Pekka Pienimäki ◽  
Jyrki Ollikainen ◽  
Niko Sillanpää ◽  
Sara Protto
Keyword(s):  
Clinical Outcome ◽  
Acute Stroke ◽  
Mechanical Thrombectomy ◽  
Clinical Laboratory ◽  
Intravenous Thrombolysis ◽  
Stroke Patients ◽  
Anterior Circulation ◽  
Vessel Occlusion ◽  
Ordinal Logistic Regression Analysis ◽  
Stroke Center

Abstract Purpose Mechanical thrombectomy (MT) is the first-line treatment in acute stroke patients presenting with large vessel occlusion (LVO). The efficacy of intravenous thrombolysis (IVT) prior to MT is being contested. The objective of this study was to evaluate the efficacy of MT without IVT in patients with no contraindications to IVT presenting directly to a tertiary stroke center with acute anterior circulation LVO. Materials and Methods We collected the data of 106 acute stroke patients who underwent MT in a single high-volume stroke center. Patients with anterior circulation LVO eligible for IVT and directly admitted to our institution who subsequently underwent MT were included. We recorded baseline clinical, laboratory, procedural, and imaging variables and technical, imaging, and clinical outcomes. The effect of intravenous thrombolysis on 3-month clinical outcome (mRS) was analyzed with univariate tests and binary and ordinal logistic regression analysis. Results Fifty-eight out of the 106 patients received IVT + MT. These patients had 2.6-fold higher odds of poorer clinical outcome in mRS shift analysis (p = 0.01) compared to MT-only patients who had excellent 3-month clinical outcome (mRS 0–1) three times more often (p = 0.009). There were no significant differences between the groups in process times, mTICI, or number of hemorrhagic complications. A trend of less distal embolization and higher number of device passes was observed among the MT-only patients. Conclusions MT without prior IVT was associated with an improved overall three-month clinical outcome in acute anterior circulation LVO patients.

Abstract 65: Timing of Complications Related to Current Post tPA Protocol

Stroke ◽  
2015 ◽  
Vol 46 (suppl_1) ◽  
Author(s):  
Katja Bryant ◽  
Kim Anda ◽  
Leslie Busby ◽  
Deborah Camp ◽  
Kerrin Connely ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Practice Guidelines ◽  
Vital Signs ◽  
Current Clinical Practice ◽  
Neurological Assessment ◽  
Symptomatic Intracranial Hemorrhage ◽  
The Mean ◽  
Q 30 ◽  
Assessment Frequency ◽  
Mean Time

The current clinical practice guidelines (CPG) based on the NINDS trial from 1995 recommend that vital signs and neuro checks are completed Q15 min x 2 hrs., Q 30 min x 6 hrs., Q 1 hour x 16 hrs. post administration of IV t-PA. The half-life (t ½α ) of Alteplase is <5 min, therefore the current vigilance of neurological assessments may not be necessary. The purpose of this study was to evaluate the timing of when a symptomatic intracranial hemorrhage (sICH) occured in relation to the administration of IV t-PA. Results: A total of 569 patients who received IV t-PA were reviewed. Nine patients, with a mean age of 70 ± 17 years and mean NIHSS of 11, were diagnosed with a sICH within 36 hrs. post IV t-PA administration. The mean time of detecting sICH post IV t-PA administration was 294 minutes. The shortest time was 77 min and the longest time was 814 min (13 hrs and 34 min). The vast majority (77%) of the sICH complications were diagnosed in less than 6 hrs. Conclusions: This analysis suggests that sICH occurs early in the course after administration of IV t-PA. Future guidelines may consider reducing the neurological assessment frequency after 12 hours from IV t-PA administration. Prospective controlled studies are required to validate these results.

PP126 MEA In Italy: Correlation Between Time To Payment By Result And Time To Off Treatment Curve

2017 ◽  
Vol 33 (S1) ◽  
pp. 131-132
Author(s):  
Gabriele Vittoria ◽  
Antonio Fascì ◽  
Matteo Ferrario ◽  
Giovanni Giuliani
Keyword(s):  
Clinical Trials ◽  
Treatment Failure ◽  
Median Time ◽  
Real Life ◽  
Standard Of Care ◽  
Phase Iii ◽  
Experimental Drug ◽  
The Mean ◽  
Line Of Therapy ◽  
Mean Time

INTRODUCTION:Payment by result agreements have been quite widely used in Italy to provide access for high costs oncologic drugs and minimize uncertainties of real life benefits (1). The aim of this analysis was to overview the Roche experience in terms of Payment by Result (Pbr) in oncology and investigate the relation between timing for the evaluation of treatment failures and observed Time to Off Treatment (TTOT) from Phase III clinical trials (2).METHODS:A retrospective analysis of the Roche payment by results schemes in place in Italy was conducted. For each drug included in the analysis it was collected: (i) the negotiated timing to assess the treatment failure for payment by result, (ii) the median time to off treatment curve observed in clinical trials for the experimental drug, (iii) the median time to off treatment observed in clinical trials for the control arm. The mean ratios between timing to assess the treatment failure for payment by result and the time to off treatment observed for the experimental drug or the median time to off treatment observed in the control arm were calculated to identify potential correlations. High level of correlation was expected if ratio was close to 1 (±.2).RESULTS:Roche products or different indications of the same product were identified as candidates for the analysis from 2008 to 2016. The timing for the evaluation of treatment failures for Pbr varies between 2 and 9 months, depending on the type of tumor and line of therapy. The mean Time to Payment By Result (TTPbr) / Control arm Time To Off Treatment (cTTOT) ratio was 1.16 (±.37) while the mean Time to Payment By Result (TTPbr) / Experimental arm Time To Off Treatment (eTTOT) ratio was .71 (±.13). Data analysis according to different time periods shows that the mean TTPbr/cTTOT and TTPbr/eTTOT for drugs negotiated from 2008 to 2015 were respectively 1.07 and 1.39 whereas for drugs negotiated in 2016 were respectively and .63 and 1.CONCLUSIONS:Good level of correlation between TTPbr and cTTOT was found. This finding is in line with the methodology used by Italian Medicines Agency so far, leveraging the cTTOT as the most appropriate proxy to assess any incremental effect of a new drug compared to the previous Standard of Care. The analysis over time of TTPbr shows that in the first years of payment by result negotiation TTPbr is more correlated to the cTTOT whereas in the last years is moving closer to the experimental one.

scholarly journals Mechanical Thrombectomy in Elderly Stroke Patients with Mild-to-Moderate Baseline Disability

2018 ◽  
Vol 7 (5) ◽  
pp. 246-255 ◽  
Author(s):  
Diana E. Slawski ◽  
Hisham Salahuddin ◽  
Julie Shawver ◽  
Cynthia L. Kenmuir ◽  
Gretchen E. Tietjen ◽  
...  
Keyword(s):  
Elderly Patients ◽  
Chart Review ◽  
Randomized Trials ◽  
Mechanical Thrombectomy ◽  
Real Life ◽  
National Institutes Of Health ◽  
Delayed Treatment ◽  
Good Outcome ◽  
Procedural Complications ◽  
Baseline Characteristics

Background: The number of elderly patients suffering from ischemic stroke is rising. Randomized trials of mechanical thrombectomy (MT) generally exclude patients over the age of 80 years with baseline disability. The aim of this study was to understand the efficacy and safety of MT in elderly patients, many of whom may have baseline impairment. Methods: Between January 2015 and April 2017, 96 patients ≥80 years old who underwent MT for stroke were selected for a chart review. The data included baseline characteristics, time to treatment, the rate of revascularization, procedural complications, mortality, and 90-day good outcome defined as a modified Rankin Scale (mRS) score of 0–2 or return to baseline. Results: Of the 96 patients, 50 had mild baseline disability (mRS score 0–1) and 46 had moderate disability (mRS score 2–4). Recanalization was achieved in 84% of the patients, and the rate of symptomatic hemorrhage was 6%. At 90 days, 34% of the patients had a good outcome. There were no significant differences in good outcome between those with mild and those with moderate baseline disability (43 vs. 24%, p = 0.08), between those aged ≤85 and those aged > 85 years (40.8 vs. 26.1%, p = 0.19), and between those treated within and those treated beyond 8 h (39 vs. 20%, p = 0.1). The mortality rate was 38.5% at 90 days. The Alberta Stroke Program Early CT Score (ASPECTS) and the National Institutes of Health Stroke Scale (NIHSS) predicted good outcome regardless of baseline disability (p < 0.001 and p = 0.009, respectively). Conclusion: Advanced age, baseline disability, and delayed treatment are associated with sub­optimal outcomes after MT. However, redefining good outcome to include return to baseline functioning demonstrates that one-third of this patient population benefits from MT, suggesting the real-life utility of this treatment.

Mechanical thrombectomy in nonagenarians with acute ischemic stroke

2019 ◽  
Vol 11 (11) ◽  
pp. 1091-1094 ◽  
Author(s):  
Lukas Meyer ◽  
Maria Alexandrou ◽  
Hannes Leischner ◽  
Fabian Flottmann ◽  
Milani Deb-Chatterji ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Elderly Patients ◽  
Functional Outcome ◽  
Mechanical Thrombectomy ◽  
Very Elderly ◽  
Anterior Circulation ◽  
Serious Adverse Events ◽  
Good Functional Outcome ◽  
Symptomatic Intracranial Hemorrhage

BackgroundMechanical thrombectomy (MT) is a safe and effective therapy for ischemic stroke. Nevertheless, very elderly patients aged ≥90 years were either excluded or under-represented in previous trials. It remains uncertain whether MT is warranted for this population or whether there should be an upper age limit.MethodsWe retrospectively reviewed 79 patients with stroke aged ≥90 years from three neurointerventional centers who underwent MT between 2013 and 2017. Good functional outcome was defined as modified Rankin scale (mRS) ≤2 and assessed at 90-day follow-up. Successful recanalization was graded by Thrombolysis in Cerebral Infarction Scale (TICI) ≥2 b. Feasibility and safety assessments included unsuccessful recanalization attempts (TICI 0), time from groin puncture to recanalization, symptomatic intracranial hemorrhage (sICH), mortality, and intervention-related serious adverse events.ResultsOnly occlusions within the anterior circulation were included. Median time from groin puncture to recanalization was 39 min (IQR 25–57 min). The rate of successful recanalization (TICI ≥2 b) was 69.6% (55/79). Good functional outcome (mRS ≤2) at 90 days was observed in 16% (12/75) of patients. In-hospital mortality was 29.1% (23/79) and increased significantly at 90 days (46.7%, 35/75; p<0.001). sICH occurred in 5.1% (4/79) of patients. No independent predictor for good functional outcome (mRS ≤2) at 90 days was identified through logistic regression analysis.ConclusionMT in nonagenarians leads to high mortality rates and less frequently good functional outcome compared with younger patient cohorts in previous large randomized trials. However, MT appears to be safe and beneficial for a certain number of very elderly patients and therefore should generally not be withheld from nonagenarians.

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