scholarly journals Cerebral Large Vessel Occlusion Caused by Fat Embolism—A Case Series and Review of the Literature

2021 ◽  
Vol 12 ◽  
Author(s):  
Suyi Ooi ◽  
Subahari Raviskanthan ◽  
Bruce C. V. Campbell ◽  
Elspeth J. Hutton ◽  
Peter J. Mitchell ◽  
...  

The diagnosis of fat embolism syndrome typically involves neurological, respiratory and dermatological manifestations of microvascular occlusion 24–72 h after a precipitating event. However, fat embolism causing cerebral large vessel occlusion strokes and their sequelae have rarely been reported in the literature. This case series reports three patients with fat emboli post operatively causing cerebral large vessel occlusions, as well as a review of the literature to identify differences in clinical presentations and outcomes in stroke secondary to fat emboli causing large vessel occlusions compared to those with fat embolism syndrome.

2020 ◽  
Vol 41 (12) ◽  
pp. 3517-3525
Author(s):  
Lucio D’Anna

Abstract Background Mechanical thrombectomy is the standard of care, in selected patients, for acute ischemic stroke with large vessel occlusion but its use in patients with stroke secondary to infective endocarditis is controversial. We report three cases of acute ischemic stroke treated by mechanical thrombectomy and we propose an extensive review of the literature to evaluate the clinical safety and efficacy of thrombectomy in patients with stroke secondary to infective endocarditis. Methods A comprehensive literature search was performed following a pre-specified protocol of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. Case reports, cases series, cross-sectional studies, case control studies, randomized controlled trials or nonrandomized controlled trials were considered that included endocarditis-related acute ischemic stroke patients who underwent mechanical thrombectomy. Results The database search yielded 431 relevant records published until January 2020. Nineteen articles fulfilled the eligibility criteria that described thirty patients. After the thrombectomy, 13.3% of the patients experienced intracranial haemorrhage. After the procedure, the median National Institutes of Health Stroke Scale score dropped from 15 (IQR 7) to 2.5 (IQR 5.75). At 90 days, mortality was 23.3% while 46.7% of the patients were functionally independent (mRS ≤ 2). Discussion Based on our review, the use of mechanical thrombectomy in patients with large vessel occlusion due to endocarditis-associated stroke might improve patient outcome but it should be considered on a case by case base as the safety has not been well established yet. Further research on risk stratification is needed to drive clinician during the decision-making process.


2018 ◽  
Vol 11 (3) ◽  
pp. 241-245 ◽  
Author(s):  
Nikita Lakomkin ◽  
Mandip Dhamoon ◽  
Kirsten Carroll ◽  
Inder Paul Singh ◽  
Stanley Tuhrim ◽  
...  

BackgroundAccurate assessment of the prevalence of large vessel occlusion (LVO) in patients presenting with acute ischemic stroke (AIS) is critical for optimal resource allocation in neurovascular intervention.ObjectiveTo perform a systematic review of the literature in order to identify the proportion of patients with AIS presenting with LVO on image analysis.MethodsA systematic review was performed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines in order to identify studies reporting LVO rates for patients presenting with AIS. Studies that included patients younger than 18 years, were non-clinical, or did not report LVO rates in the context of a consecutive AIS series were excluded. Characteristics regarding presentation, diagnosis, and LVO classification were recorded for each paper.ResultsSixteen studies, spanning a total of 11 763 patients assessed for stroke, were included in the qualitative synthesis. The majority (10/16) of articles reported LVO rates exceeding 30% in patients presenting with AIS. There was substantial variability in the LVO definitions used, with nine unique classification schemes among the 16 studies. The mean prevalence of LVO was 31.1% across all studies, and 29.3% when weighted by the number of patients included in each study.ConclusionsDespite the wide variability in LVO classification, the majority of studies in the last 10 years report a high prevalence of LVO in patients presenting with AIS. These rates of LVO may have implications for the volume of patients with AIS who may benefit from endovascular therapy.


Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
Muhammad Z Memon ◽  
Taha Nisar ◽  
Amit Singla ◽  
Anil Nanda ◽  
Gaurav Gupta ◽  
...  

Background: COVID-19 has been shown to induce a hypercoagulable state thereby increasing the risk of arterial thrombosis resulting in Large Vessel Occlusion Stroke (LVOs) Objective: We performed a systematic review of published reports to study the clinical characteristics, and outcomes of COVID-19 acute ischemic stroke (AIS) patients with LVO treated with mechanical thrombectomy (MT) and compared them with historical controls. Methods: We conducted a systematic literature search from December 2019 to July 2020 using multiple combinations of keywords from PubMed and Ovid databases according to the PRISMA meta-analyses and systemic reviews guidelines and then pooled data from individual case series. We included studies where COVID -19 associated LVO cases were treated with MT and their clinical outcomes were reported. We then compared these findings with the historic patient data from the five landmark randomized MT trials, the Hermes collaborators (HC). Results: An initial search generated 12 studies but after excluding case reports and multiple reports comprising of the same series of patients, a total of five reports consisting of 51 patients were analyzed. The mean age of patients was 59 years (IQR 36-75), and 40 (78 %) were men. Median NIHSS on presentation was 20 (IQR 10-29). AIS with LVO was the presenting manifestation of COVID-19 in 16 (20%) of patients. Intracranial ICA was the most common site of occlusion found in 27 (53%) of patients with multi-territory occlusion in 10 (20 %). Final recanalization TICI ≥ 2b was achieved in 33 (64%) of patients but reocclusion was noted in 7 (14 %). Modified Rankin score (mRS) 0-2 was reported in 12 (23 %) of patients with 40 % in-hospital mortality. When compared to historic data from HC, COVID -19 patients were younger (59 vs 69 years), presented with a higher median NIHSS score (20 vs 17), and had a higher prevalence of ICA terminus occlusion (53% vs 21% ). Similarly, patient outcomes were poor in the COVID -19 group with mRs 0-2 in (23 % versus 46 %) and mortality (40 % vs 15 %) compared to Hermes group. Conclusion: COVID -19 AIS patients with LVO who underwent MT were younger, had multiple territory occlusions with a propensity for ICA terminus location, and had poor angiographic and clinical outcomes as compared to historic data.


2020 ◽  
pp. neurintsurg-2020-015938 ◽  
Author(s):  
Hanna Styczen ◽  
Christian Maegerlein ◽  
Leonard LL Yeo ◽  
Christin Clajus ◽  
Andreas Kastrup ◽  
...  

BackgroundData on the frequency and outcome of repeated mechanical thrombectomy (MT) in patients with short-term re-occlusion of intracranial vessels is limited. Addressing this subject, we report our multicenter experience with a systematic review of the literature.MethodsA retrospective analysis was conducted of consecutive acute stroke patients treated with MT repeatedly within 30 days at 10 tertiary care centers between January 2007 and January 2020. Baseline demographics, etiology of stroke, angiographic outcome and clinical outcome evaluated by the modified Rankin Scale (mRS) at 90 days were noted. Additionally, a systematic review of reports with repeated MT due to large vessel occlusion (LVO) recurrence was performed.ResultsWe identified 30 out of 7844 (0.4%) patients who received two thrombectomy procedures within 30 days due to recurrent LVO. Through systematic review, three publications of 28 participants met the criteria for inclusion. Combined, a total of 58 participants were analyzed: cardioembolic events were the most common etiology for the first (65.5%) and second LVO (60.3%), respectively. Median baseline NIHSS (National Institutes of Health Stroke Scale) was 13 (IQR 8–16) before the first MT and 15 (IQR 11–19) before the second MT (p=0.031). Successful reperfusion was achieved in 91.4% after the first MT and in 86.2% patients after the second MT (p=0.377). The rate of functional independence (mRS 0–2) was 46% at 90 days after the second procedure.ConclusionRepeated MT in short-term recurrent LVO is a rarity but appears to be safe and effective. The second thrombectomy should be pursued with the same extensive effort as the first procedure as these patients may achieve similar good outcomes.


2019 ◽  
Vol 11 (10) ◽  
pp. 1055-1062 ◽  
Author(s):  
Yasha Kayan ◽  
Philip M Meyers ◽  
Charles J Prestigiacomo ◽  
Peter Kan ◽  
Justin F Fraser

BackgroundThe aim of this publication is to provide a detailed update on the diagnosis, treatment, and endovascular techniques for posterior circulation emergent large vessel occlusion (pc-ELVO).MethodsWe performed a review of the literature to specifically evaluate this disease and its treatments.ResultsData were analyzed, and recommendations were reported based on the strength of the published evidence and expert consensus.ConclusionWhile many questions about pc-ELVO remain to be studied, there is evidence to support particular practices in its evaluation and treatment.


2020 ◽  
Vol 15 (2) ◽  
pp. 89-95
Author(s):  
Yuichiro Tsuji ◽  
Takanori Miki ◽  
Hiroto Kakita ◽  
Kimitoshi Sato ◽  
Takashi Yoshida ◽  
...  

Mechanical thrombectomy has become a standard treatment for acute ischemic stroke with large vessel occlusion. In aged patients, it is difficult to guide the catheter via the transfemoral approach due to vessel tortuosity and aortic elongation. We report our preliminary clinical experience using the transbrachial approach. Among the 119 patients who underwent thrombectomy from April 2018 to December 2019, a total of 5 patients were treated via the transbrachial approach. Clinical outcomes were retrospectively analyzed. Successful reperfusion was achieved in 4 out of 5 cases. There was 1 death due to symptomatic intracranial hemorrhage. One patient had a good outcome at discharge. There were no access-site complications associated with any of these cases. Transbrachial access for mechanical thrombectomy is feasible and can provide an alternative to the transfemoral approach.


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