Longer procedural times are independently associated with symptomatic intracranial hemorrhage in patients with large vessel occlusion stroke undergoing thrombectomy

2016 ◽  
Vol 8 (12) ◽  
pp. 1217-1220 ◽  
Author(s):  
Tareq Kass-Hout ◽  
Omar Kass-Hout ◽  
Chung-Huan Johnny Sun ◽  
Taha A Kass-Hout ◽  
Raul Nogueira ◽  
...  
Keyword(s):  
Intracranial Hemorrhage ◽  
Functional Outcomes ◽  
Infarct Volume ◽  
National Institutes Of Health ◽  
Procedure Time ◽  
Vessel Occlusion ◽  
Procedural Time ◽  
Symptomatic Intracranial Hemorrhage

BackgroundTime to reperfusion is an essential factor in determination of outcomes in acute ischemic stroke (AIS).ObjectiveTo establish the effect of the procedural time on the clinical outcomes of patients with AIS.MethodsData from all consecutive patients who underwent mechanical thrombectomy between September 2010 and July 2012 were analysed retrospectively. The variable of interest was procedural time (defined as time from groin puncture to final recanalization time). Outcome measures included the rates of symptomatic intracranial hemorrhage (sICH, defined as any parenchymal hematoma—eg, PH-1/PH-2), final infarct volume, 90-day mortality, and independent functional outcomes (modified Rankin Scale 0–2) at 90 days.ResultsThe cohort included 242 patients with a mean age of 65.5±14.2 and median baseline National Institutes of Health Stroke Scale score 20. 51% of the patients were female. The mean procedure time was significantly shorter in patients with a good outcome (86.7 vs 73.1 min, respectively, p=0.0228). Patients with SICH had significantly higher mean procedure time than patients without SICH (79.67 vs 104.5 min, respectively; p=0.0319), which remained significant when controlling for the previous factors (OR=0.974, 95% CI 0.957 to 0.991). No correlation was found between the volume of infarction and the procedure time (r=0.10996, p=0.0984). No association was seen between procedure time and 90-day mortality (77.8 vs 88.2 min in survivals vs deaths, respectively; p=0.0958).ConclusionsOur data support an association between the risk of SICH and a longer procedure time, but no association between procedural times and the final infarction volume or long-term functional outcomes was found.

Abstract TP20: Longer Procedural Times Are Independently Associated with Symptomatic Intracranial Hemorrhage in Large Vessels Occlusion Stroke Patients Undergoing Thrombectomy

Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Omar Kass-Hout ◽  
Tareq Kass-Hout ◽  
Michael R. Frankel ◽  
Fadi Nahab ◽  
Samir R. Belagaje ◽  
...  
Keyword(s):  
Functional Outcomes ◽  
Infarct Volume ◽  
P Value ◽  
Procedure Time ◽  
Entire Cohort ◽  
Radiographic Outcomes ◽  
Academic Center ◽  
Procedural Time ◽  
Symptomatic Intracranial Hemorrhage

Background and Purpose: Time to reperfusion is an essential factor in determination of outcomes in (AIS). We sought to establish the effect of the procedural time on the clinical and radiographic outcomes of AIS patients undergoing intra-arterial therapy. Methods: Retrospective review of a prospectively collected database of endovascularly treated large vessel AIS in a large academic center. Data from all consecutive patients who underwent mechanical thrombectomy from September 2010 to July 2012 were analyzed. The variable of interest was procedural time (defined as time from groin puncture to end of procedure). Outcome measures included the rates of symptomatic intracebral hemorrhage (sICH, defined as any parenchymal hematoma e.g. PH-1/PH-2), final infarct volume, 90-day mortality, and independent functional outcomes (modified Rankin Scale, mRS 0-2) at 90 days. Results: The entire cohort included 242 patients with a mean age of 65.5+/- 14.2 and median baseline NIHSS 20. Of the patients 49.38% were females. The median ASPECTS score was 8. The mean procedure time was significantly shorter in patients with good outcome (86.73 vs. 73.13 respectively, P-value: 0.0228). However, after controlling for ASPECTS score, type of retrieval device, TICI score, volume of infarct, interval from symptoms onset to puncture, and co-morbidities, this association did not prove to be significant (P-value = 0.7101). Patients with SICH had significantly higher mean procedure time than patients without SICH (79.65 vs. 104.5 respectively; P-value: 0.0319) which remained significant when controlling to the previous factors (OR = 0.974 with a 95 % CI of (0.957, 0.991). There was no correlation between the volume of infarction and the procedure time (r = 0.10996, P-value: 0.0984). There was no association between procedure time and 90-day mortality (77.8 vs. 88.2 minutes in survivals vs. deaths respectively; P-value: 0.0958). Conclusion: Our data support an association between the risk of SICH and a longer procedure time while no definite association between procedural times and the final infarction volume or long-term functional outcomes was found after adjustment for multiple imbalances.

scholarly journals Number of Retrieval Attempts Rather Than Procedure Time Is Associated With Risk of Symptomatic Intracranial Hemorrhage

Stroke ◽  
2021 ◽  
Vol 52 (5) ◽  
pp. 1580-1588
Author(s):  
Máté Elöd Maros ◽  
Caspar Brekenfeld ◽  
Gabriel Broocks ◽  
Hannes Leischner ◽  
Rosalie McDonough ◽  
...  
Keyword(s):  
Cerebral Infarction ◽  
Intracranial Hemorrhage ◽  
Endovascular Therapy ◽  
Odds Ratio ◽  
National Institutes Of Health ◽  
Large Vessel ◽  
Large Vessel Occlusion ◽  
Procedure Time ◽  
Vessel Occlusion ◽  
Symptomatic Intracranial Hemorrhage

Background and Purpose: Endovascular therapy is the standard of care in the treatment of acute ischemic stroke due to large-vessel occlusion. A direct association between the number of device passes and the occurrence of symptomatic intracranial hemorrhage (SICH) has been suggested. This study represents an in-depth investigation of the hypothesis that >3 retrieval attempts is associated with an increased rate of SICH in a large multicenter patient cohort. Methods: Two thousand six hundred eleven patients from the prospective German Stroke Registry were analyzed. Patients who received Endovascular therapy for acute large-vessel occlusion of the anterior circulation with known admission National Institutes of Health Stroke Scale and Alberta Stroke Program Early CT Score, final Thrombolysis in Cerebral Infarction, and number of retrieval passes were included. The primary outcome was defined as SICH. The secondary outcome was any type of radiologically confirmed intracranial hemorrhage within the first 24 hours. Multivariate mixed-effects models were used to adjust for cluster effects of the participating centers, as well as for confounders. Results: Five hundred ninety-three patients fulfilled the inclusion criteria. The median number of retrieval passes was 2 [interquartile range, 1–3]. SICH occurred in 26 cases (4.4%), whereas intracranial hemorrhage was identified by neuroimaging in 85 (14.3%) cases. More than 3 retrieval passes was the strongest predictor for SICH (odds ratio, 3.61 [95% CI, 1.38–9.42], P =0.0089) following adjustment for age, admission National Institutes of Health Stroke Scale, admission Alberta Stroke Program Early CT Score, and Thrombolysis in Cerebral Infarction, as well as time from symptom onset to flow restoration. Baseline Alberta Stroke Program Early CT Score of 8 to 9 (odds ratio, 0.26 [95% CI, 0.07–0.89], P =0.032) or 10 (odds ratio, 0.21 [95% CI, 0.06–0.78], P =0.020) were significant protective factors against the occurrence of SICH. Conclusions: More than 3 retrieval attempts is associated with a significant increase in SICH risk, regardless of patient age, baseline National Institutes of Health Stroke Scale, or procedure time. This should be considered when deciding whether to continue a procedure, especially in patients with large baseline infarctions. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT03356392.

Abstract TP69: Association Between DWI-FLAIR Mismatch and Functional Outcomes in Patients Undergoing Mechanical Thrombectomy

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Fumihiro Sakakibara ◽  
Kazutaka Uchida ◽  
Soichiro Numa ◽  
Shinichi Yoshimura ◽  
Takeshi Morimoto
Keyword(s):  
Intracranial Hemorrhage ◽  
Functional Outcomes ◽  
Mechanical Thrombectomy ◽  
Intravenous Thrombolysis ◽  
Vessel Occlusion ◽  
Ischemic Lesion ◽  
Historical Cohort ◽  
Good Marker ◽  
Fluid Attenuated Inversion Recovery ◽  
Symptomatic Intracranial Hemorrhage

Background and Purpose: Diffusion weighted imaging-fluid attenuated inversion recovery (DWI-FLAIR) mismatch was well recognized as an early sign of acute ischemic stroke lesions. In the era of mechanical thrombectomy (MT), DWI-FLAIR mismatch could be a good marker for candidates of MT. We thus investigated the association between DWI-FLAIR mismatch and functional outcomes in patients who received MT for acute large vessel occlusion (LVO). Methods: We conducted historical cohort study in consecutive patients who were evaluated by MRI for suspected stroke at single stroke center. We enrolled patients with occlusion of the ICA or M1 or M2 segment of MCA who were underwent MT within 24 hours after the last known to be well. FLAIR negative was defined when a visible acute ischemic lesion was present on DWI without traceable parenchymal hyperintensity on FLAIR. We estimated the adjusted OR of FLAIR negative for moderate outcome defined as mRS 0-3 at 90 days after onset. We also estimated the adjusted OR for symptomatic intracranial hemorrhage within 72 hours and mortality at 90 days. Results: Among 380 patients who received MT for acute LVO, 202 patients were included in this study. Patients with FLAIR negative was 146 (72%), and the rest were FLAIR positive. Patients with FLAIR negative had significantly higher baseline NIHSS (median 16 vs 13, p=0.01), more transferred-in (78% vs 63%, p=0.02), more intravenous thrombolysis (IVT) (45% vs 18%, P=0.0003), more cardioembolism (69% vs 54%, p=0.03), and shorter times from the onset to hospital door (median 175 vs 371 minutes, p<0.0001). Patients with FLAIR negative had more moderate outcome than the counterparts (61% vs 52%, p=0.24). The adjusted OR of FLAIR negative compared to positive was 2.97 (95%CI, 1.33-6.60, p=0.008). Symptomatic intracranial hemorrhage within 72 hours was less frequent in the FLAIR negative group (10% vs 20%, p=0.06), with an adjusted OR of 0.34 (95%CI, 0.13-0.87, p=0.02). Conclusions: DWI-FLAIR mismatch was associated with better functional outcome in patients received MT for acute LVO at 90 days. DWI-FLAIR mismatch should be a good marker for the candidate of MT for acute LVO. Future randomized trial to evaluate the effectiveness of MRI-based MT using DWI-FLAIR mismatch should be considered.

Abstract TP36: Impact of Intracranial Hemorrhage After Endovascular Treatment on Long-Term Functional Outcomes in Patients With Acute Large Vessel Occlusion: Insights From RESCUE- Japan Registry-2

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Norito Kinjo ◽  
Kazutaka Uchida ◽  
Shinichi Yoshimura ◽  
Nobuyuki Sakai ◽  
Hiroshi Yamagami ◽  
...  
Keyword(s):  
Functional Outcome ◽  
Intracranial Hemorrhage ◽  
Functional Outcomes ◽  
Large Vessel ◽  
Prognostic Impact ◽  
Large Vessel Occlusion ◽  
Vessel Occlusion ◽  
Good Outcome ◽  
The Impact

Background and Purpose: Endovascular therapy (EVT) for acute large vessel occlusion (LVO) is currently standard therapy, but it was associated with a higher incidence of intracranial hemorrhage (ICH) compared to conservative therapy. We investigated the impact of ICH within 72 hours on functional outcome at 90 days in patients with EVT for acute LVO. Methods: RESCUE-Japan Registry-2 was a multicenter registry enrolled 2420 consecutive patients with acute LVO within 24 hours of onset. We analyzed patients who received EVT and compared the functional outcomes between those with ICH (ICH group) and without ICH (No-ICH group) within 72 hours after onset. We estimated the adjusted odds ratio (OR) for good functional outcome as mRS 0-2 and mortality. We also explored the prognostic impact of symptomatic ICH (SICH) among those with ICH. Results: Among 2420 patients in the registry, 1281 received EVT and mean age was 75 years, and 759 (59.2%) were men. ICH occurred in 332 patients (25.9%). Good outcome was observed 80 patients (24.0%) and 454 patients (47.9%) in the ICH and No-ICH group, respectively, and the adjusted OR for good outcome of ICH group compared to No-ICH group was 0.30 (95% CI 0.22-0.42, p<0.0001). However, the mortalities within 90 days were not significantly different between groups (adjusted OR 1.13; 95% CI 0.72-1.76, p=0.59). SICH was observed in 35 patients (10.5%) among 332 patients with ICH, and the good outcomes were 8.6% and 25.9 % in patients with SICH and asymptomatic ICH (AICH), respectively (p=0.02). Mortality at 90 days were 31.4% and 7.0% in patients with SICH and AICH, respectively (p<0.0001). Conclusion: The functional outcomes at 90 days after onset was significantly worse in patients suffered ICH than the counterparts after EVT for acute LVO. However, the mortality rates were generally similar between those with and without ICH. Among patients with ICH, mortality was higher in patients with SICH, but mortality of the patients with AICH was similar to those without ICH.

Abstract P538: A Detailed Analysis of Intracranial Hemorrhage After Endovascular Treatment in Acute Ischemic Stroke Due to Large Vessel Occlusion in the Escape-NA1 Trial

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Johanna Ospel ◽  
Michael D Hill ◽  
Nima Kashani ◽  
Arnuv Mayank ◽  
Nishita Singh ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Intracranial Hemorrhage ◽  
Intraventricular Hemorrhage ◽  
Infarct Volume ◽  
Prognostic Impact ◽  
Vessel Occlusion ◽  
Good Outcome

Purpose: We investigated the prevalence and prognostic impact on outcome of any intracranial hemorrhage, hemorrhage morphology, type and volume in acute ischemic stroke patients undergoing mechanical thrombectomy. Methods: Prevalence of intracranial hemorrhage, hemorrhage type, morphology and volume was determined on 24h follow-up imaging (non contrast head CT or gradient-echo/susceptibility-weighted MRI). Proportions of good outcome (mRS 0-2 at 90 days) were reported for patients with vs. without any intracranial hemorrhage. Multivariable logistic regression with adjustment for key minimization variables and total infarct volume was performed to obtain adjusted effect size estimates for hemorrhage type and volume on good outcome. Results: Hemorrhage on follow up-imaging was seen in 372/1097 (33.9%) patients, among them 126 (33.9%) with hemorrhagic infarction (HI) type 1, 108 (29.0%) with HI-2, 72 /19.4%) with parenchymal hematoma (PH) type 1, 37 (10.0) with PH2, 8 (2.2%) with remote PH and 21 (5.7%) with extra-parenchymal/intraventricular hemorrhage. Good outcomes were less often achieved by patients with hemorrhage on follow-up imaging (164/369 [44.4%] vs. 500/720 [69.4%]). Any type of intracranial hemorrhage was strongly associated with decreased chances of good outcome ( adj OR 0.62 [CI 95 0.44 - 0.87]). The effect of hemorrhage was driven by both PH hemorrhage sub-type [PH-1 ( adj OR 0.39 [CI 95 0.21 - 0.72]), PH-2 ( adj OR 0.15 [CI 95 0.05 - 0.50])] and extra-parenchymal/intraventricular hemorrhage ( adj OR 0.60 (0.20-1.78) Petechial hemorrhages (HI-1 and HI-2) were not associated with poorer outcomes. Hemorrhage volume ( adj OR 0.97 [CI 95 0.05 - 0.99] per ml increase) was significantly associated with decreased chances of good outcome. Conclusion: Presence of any hemorrhage on follow-up imaging was seen in one third of patients and strongly associated with decreased chances of good outcome.

Endovascular treatment for AIS with underlying ICAD

2016 ◽  
Vol 9 (10) ◽  
pp. 948-951 ◽  
Author(s):  
Sami Al Kasab ◽  
Zayed Almadidy ◽  
Alejandro M Spiotta ◽  
Aquilla S Turk ◽  
M Imran Chaudry ◽  
...  
Keyword(s):  
Functional Outcomes ◽  
National Institutes Of Health ◽  
Large Vessel Occlusion ◽  
Vessel Occlusion ◽  
Nihss Score ◽  
Intracranial Atherosclerotic Disease ◽  
Significant Difference ◽  
Procedural Complications ◽  
Angioplasty And Stenting

BackgroundAcute large vessel occlusion (LVO) can result from thromboemboli or underlying intracranial atherosclerotic disease (ICAD). Although the technique for revascularization differs significantly for these two lesions (simple thrombectomy for thromboemboli and balloon angioplasty and stenting for ICAD), the underlying etiology is often unknown in acute ischemic stroke (AIS).ObjectiveTo evaluate whether procedural complications, revascularization rates, and functional outcomes differ among patients with LVO from ICAD or thromboembolism.MethodsA retrospective review of thrombectomy cases from 2008 to 2015 was carried out for cases of AIS due to underlying ICAD. Thirty-six patients were identified. A chart and imaging review was performed to determine revascularization rates, periprocedural complications, and functional outcomes. Patients with ICAD and acute LVO were compared with those with underlying thromboemboli.ResultsAmong patients with ICAD and LVO, mean National Institutes of Health Stroke Scale (NIHSS) score on admission was 12.9±8.5, revascularization (Thrombolysis In Cerebral Infarction, TICI ≥2b) was achieved in 22/34 (64.7%) patients, 11% had postprocedural intracerebral hemorrhage (PH2), and 14/33 (42.4%) had achieved a modified Rankin Scale (mRS) score of 0–2 at the 3-month follow-up. Compared with patients without underlying ICAD, there was no difference in NIHSS on presentation, or in the postprocedural complication rate. However, procedure times for ICAD were longer (98.5±59.8 vs 37.1±34.2 min), there was significant difference in successful revascularization rate between the groups (p=0.001), and a trend towards difference in functional outcome at 3 months (p=0.07).ConclusionsDespite AIS with underlying ICAD requiring a more complex, technically demanding recanalization strategy than traditional thromboembolic AIS, it appears safe, and good outcomes are obtainable.

scholarly journals Safety of Glycoprotein IIb-IIIa Inhibitors Used in Stroke-Related Treatment: A Systematic Review and Meta-Analysis

2020 ◽  
Vol 26 ◽  
pp. 107602962094259
Author(s):  
Xiaolin Zhu ◽  
Genmao Cao
Keyword(s):  
Intracranial Hemorrhage ◽  
Meta Analysis ◽  
Intravenous Thrombolysis ◽  
Recombinant Tissue Plasminogen Activator ◽  
Antiplatelet Agents ◽  
National Institutes Of Health ◽  
Randomized Controlled ◽  
Tissue Plasminogen ◽  
Treatment Administration ◽  
Symptomatic Intracranial Hemorrhage

Background: Endovascular therapy and intravenous thrombolysis with recombinant tissue plasminogen activator are the 2 most recommended treatments for acute ischemic stroke (AIS). Glycoprotein (GP) IIb-IIIa inhibitors are short-acting selective reversible antiplatelet agents that emerged as promising therapeutic agents for AIS about 10 years ago. Given the unclear safety profile and application coverage of GP inhibitors, we conducted this meta-analysis to explore the same. Methods: We used GP IIb-IIIa inhibitors, intracranial hemorrhage, and mortality as the key words on Medline, Web of Science, and the Embase databases. Randomized controlled trials, prospective literatures, and retrospective studies in English published between 1990 and 2020 were screened. The outcomes were relative risk (RR) of death and 90-day intracerebral hemorrhage (ICH). We pooled the results in 2 categories and conducted a subgroup analysis stratified by different drugs. The choice of the effects model depended on the value of I 2. Results: In all, 3700 patients from 20 studies were included. No GP IIb-IIIa inhibitors were found to have a remarkable influence on the ICH rate. The RR values of symptomatic ICH for abciximab and eptifibatide were 4.26 (1.89, 9.59) and 0.17 (0.04, 0.69), respectively. Both tirofiban and abciximab could decrease the mortality rate within 90 days. Age > 70 years, National Institutes of Health Stroke Scale > 15, and overall dose > 10 mg are risk factors for ICH events with tirofiban usage. Thrombectomy combined with tirofiban was safe for arterial reocclusion prevention. Conclusions: In stroke-related treatment, administration of GP IIb-IIIa inhibitors could be safe, but care should be taken regarding drug species and doses. Abciximab can increase the risk of symptomatic intracranial hemorrhage. Tirofiban and eptifibatide can be considered safe in low doses. Suitable patients should be selected using strict criteria.

Incidence and Prognostic Impact of Intracranial Hemorrhage after Endovascular Treatment for Acute Large Vessel Occlusion

2020 ◽  
Vol 49 (5) ◽  
pp. 540-549
Author(s):  
Norito Kinjo ◽  
Shinichi Yoshimura ◽  
Kazutaka Uchida ◽  
Nobuyuki Sakai ◽  
Hiroshi Yamagami ◽  
...  
Keyword(s):  
Endovascular Treatment ◽  
Functional Outcome ◽  
Intracranial Hemorrhage ◽  
Functional Outcomes ◽  
Large Vessel ◽  
Prognostic Impact ◽  
Large Vessel Occlusion ◽  
Vessel Occlusion ◽  
Scale Scores ◽  
The Impact

<b><i>Introduction:</i></b> Endovascular treatment (EVT) is effective against acute cerebral large vessel occlusion (LVO). However, it has been associated with a high incidence of intracranial hemorrhage (ICH). Because the incidence of ICH and prognostic impact of ICH were not scrutinized in general patients, we investigated the impact of ICH after EVT on functional outcome at 90 days in patients with acute LVO. <b><i>Methods:</i></b> RESCUE-Japan Registry 2 was a multicenter registry that enrolled 2,420 consecutive patients with acute LVO within 24 h of onset. We analyzed 1,281 patients who received EVT and compared the functional outcomes between those with and without ICH (ICH and no-ICH groups, respectively) within 24 h after EVT. We explored the factors associated with ICH and prognostic impact of symptomatic ICH (SICH) among patients with ICH. We estimated the adjusted odds ratios (ORs) for good functional outcome as modified Rankin Scale scores 0–2 and mortality. We also explored the prognostic impact of symptomatic ICH (SICH) among patients with ICH. <b><i>Results:</i></b> ICH occurred in 333 patients (26.0%). Several factors such as perioperative edaravone, stent retriever, and baseline glucose were associated with development of ICH within 24 h. A good outcome was observed in 80 (24.0%) and 454 (47.9%) patients in the ICH and no-ICH groups, respectively, and the adjusted OR was 0.3 (95% confidence interval [CI] = 0.2–0.5, <i>p</i> &#x3c; 0.0001). Incidence of mortality within 90 days was not significantly different between the groups (adjusted OR 1.2; 95% CI: 0.7–1.9, <i>p</i> = 0.5). SICH was observed in 36 (10.8%) of 333 patients with ICH, and the good outcomes were 8.3 and 25.9% in patients with SICH and asymptomatic ICH (AICH), respectively (<i>p</i> = 0.02). Mortality at 90 days was 30.6 and 7.1% in patients with SICH and AICH, respectively (<i>p</i> &#x3c; 0.0001). <b><i>Conclusions:</i></b> The functional outcomes at 90 days were significantly worse in patients who developed ICH after receiving EVT for acute LVO, but the mortality was generally similar.

scholarly journals European Multicenter Study of ET-COVID-19

Stroke ◽  
2021 ◽  
Vol 52 (1) ◽  
pp. 31-39
Author(s):  
Federico Cagnazzo ◽  
Michel Piotin ◽  
Simon Escalard ◽  
Benjamin Maier ◽  
Marc Ribo ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Cerebral Infarction ◽  
Lymphocyte Count ◽  
Interquartile Range ◽  
National Institutes Of Health ◽  
Large Vessel ◽  
Large Vessel Occlusion ◽  
Vessel Occlusion ◽  
Neurological Improvement ◽  
Symptomatic Intracranial Hemorrhage

Background and Purpose: Acute ischemic stroke and large vessel occlusion can be concurrent with the coronavirus disease 2019 (COVID-19) infection. Outcomes after mechanical thrombectomy (MT) for large vessel occlusion in patients with COVID-19 are substantially unknown. Our aim was to study early outcomes after MT in patients with COVID-19. Methods: Multicenter, European, cohort study involving 34 stroke centers in France, Italy, Spain, and Belgium. Data were collected between March 1, 2020 and May 5, 2020. Consecutive laboratory-confirmed COVID-19 cases with large vessel occlusion, who were treated with MT, were included. Primary investigated outcome: 30-day mortality. Secondary outcomes: early neurological improvement (National Institutes of Health Stroke Scale improvement ≥8 points or 24 hours National Institutes of Health Stroke Scale 0–1), successful reperfusion (modified Thrombolysis in Cerebral Infarction grade ≥2b), and symptomatic intracranial hemorrhage. Results: We evaluated 93 patients with COVID-19 with large vessel occlusion who underwent MT (median age, 71 years [interquartile range, 59–79]; 63 men [67.7%]). Median pretreatment National Institutes of Health Stroke Scale and Alberta Stroke Program Early CT Score were 17 (interquartile range, 11–21) and 8 (interquartile range, 7–9), respectively. Anterior circulation acute ischemic stroke represented 93.5% of cases. The rate modified Thrombolysis in Cerebral Infarction 2b to 3 was 79.6% (74 patients [95% CI, 71.3–87.8]). Thirty-day mortality was 29% (27 patients [95% CI, 20–39.4]). Early neurological improvement was 19.5% (17 patients [95% CI, 11.8–29.5]), and symptomatic intracranial hemorrhage was 5.4% (5 patients [95% CI, 1.7–12.1]). Patients who died at 30 days exhibited significantly lower lymphocyte count, higher levels of aspartate, and LDH (lactate dehydrogenase). After adjustment for age, initial National Institutes of Health Stroke Scale, Alberta Stroke Program Early CT Score, and successful reperfusion, these biological markers remained associated with increased odds of 30-day mortality (adjusted odds ratio of 2.70 [95% CI, 1.21–5.98] per SD-log decrease in lymphocyte count, 2.66 [95% CI, 1.22–5.77] per SD-log increase in aspartate, and 4.30 [95% CI, 1.43–12.91] per SD-log increase in LDH). Conclusions: The 29% rate of 30-day mortality after MT among patients with COVID-19 is not negligible. Abnormalities of lymphocyte count, LDH and aspartate may depict a patient’s profiles with poorer outcomes after MT. Registration: URL: https://www.clinicaltrials.gov . Unique identifier: NCT04406090.

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