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1.
Cerebrovasc Dis ; 49(3): 253-261, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32535590

RESUMO

BACKGROUND: Severe leukoaraiosis (LA) is an established risk factor for poor outcome after mechanical thrombectomy (MT) for large vessel occlusion stroke. There is uncertainty whether this association also applies to successfully recanalized patients with M1 segment middle cerebral artery (MCA) occlusions. METHODS: A retrospective single-centre study of patients with successful reperfusion (thrombolysis in cerebral infarction, TICI 2b or 3) after MT for an M1 MCA occlusion was performed over a 7-year period. LA score (LAS) was assessed using the age-related white matter change scale on pre-interventional brain imaging. RESULTS: A total of 209 patients (median age 75.0 years) were included. LAS was assessed on pre-interventional imaging by computed tomography in 177 (84.7%) patients and magnetic resonance imaging in 32 (15.3%) patients. The median LAS was 1 (IQR 0-8), and severe LA consisted of the top 25 percentile, ranging from 9 to 24. Multivariable analysis demonstrated an association of severe LA (OR 0.32, 95% CI 0.12-0.88, p = 0.023), higher NIHSS on admission (OR 0.89, 95% CI 0.84-0.94, p < 0.001), advanced age (OR 0.97, 95% CI 0.95-1.00, p = 0.039), good leptomeningeal collaterals (OR 3.65, 95% CI 1.46-8.15, p = 0.001), and TICI 3 score (OR 3.26, 95% CI 10.52-7.01) with good clinical outcome after 3 months as measured with the modified Rankin scale. CONCLUSION: Severe LA is associated with poor clinical outcome at 3 months in acute stroke patients undergoing MT due to emergent M1 MCA occlusion.


Assuntos
Infarto da Artéria Cerebral Média/terapia , Leucoaraiose/complicações , Trombectomia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Infarto da Artéria Cerebral Média/complicações , Infarto da Artéria Cerebral Média/diagnóstico por imagem , Leucoaraiose/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Recuperação de Função Fisiológica , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Índice de Gravidade de Doença , Trombectomia/efeitos adversos , Fatores de Tempo , Resultado do Tratamento
2.
Mult Scler ; 25(9): 1326-1328, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-30358476

RESUMO

Knowledge about complications of chronic ultra-high dose vitamin D supplementation is limited. We report a patient with primary progressive multiple sclerosis (MS) who presented with generalized weakness caused by hypercalcemia after uncontrolled intake of more than 50,000 IU of cholecalciferol per day over several months. Various treatment strategies were required to achieve normocalcemia. However, renal function improved only partly and further progression of MS was observed. We conclude that patients need to be informed about the risks of uncontrolled vitamin D intake and neurologists need to be alert of biochemical alterations and symptoms of vitamin D toxicity.


Assuntos
Colecalciferol/toxicidade , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Hipercalcemia/induzido quimicamente , Esclerose Múltipla Crônica Progressiva/tratamento farmacológico , Vitaminas/toxicidade , Colecalciferol/administração & dosagem , Humanos , Hipercalcemia/complicações , Masculino , Pessoa de Meia-Idade , Insuficiência Renal/etiologia , Vitaminas/administração & dosagem
3.
J Neuroinflammation ; 15(1): 319, 2018 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-30442159

RESUMO

BACKGROUND: The development of intracranial hemorrhage (ICH) in acute ischemic stroke is associated with a higher neutrophil to lymphocyte ratio (NLR) in peripheral blood. Here, we studied whether the predictive value of NLR at admission also translates into the occurrence of hemorrhagic complications and poor functional outcome after endovascular treatment (EVT). METHODS: We performed a retrospective analysis of consecutive patients with anterior circulation ischemic stroke who underwent EVT at a tertiary care center from 2012 to 2016. Follow-up scans were examined for non-procedural ICH and scored according to the Heidelberg Bleeding Classification. Demographic, clinical, and laboratory data were correlated with the occurrence of non-procedural ICH. RESULTS: We identified 187 patients with a median age of 74 years (interquartile range [IQR] 60-81) and a median baseline National Institutes of Health Stroke scale (NIHSS) score of 18 (IQR 13-22). A bridging therapy with recombinant tissue-plasminogen activator (rt-PA) was performed in 133 (71%). Of the 31 patients with non-procedural ICH (16.6%), 13 (41.9%) were symptomatic. Patients with ICH more commonly had a worse outcome at 3 months (p = 0.049), and were characterized by a lower body mass index, more frequent presence of tandem occlusions, higher NLR, larger intracranial thrombus, and prolonged rt-PA and groin puncture times. In a multivariate analysis, higher admission NLR was independently associated with ICH (OR 1.09 per unit increase, 95% CI (1.00-1.20, p = 0.040). The optimal cutoff value of NLR that best distinguished the development of ICH was 3.89. CONCLUSIONS: NLR is an independent predictor for the development of ICH after EVT. Further studies are needed to investigate the role of the immune system in hemorrhagic complications following EVT, and confirm the value of NLR as a potential biomarker.


Assuntos
Hemorragias Intracranianas/etiologia , Linfócitos/patologia , Neutrófilos/patologia , Complicações Pós-Operatórias/diagnóstico , Acidente Vascular Cerebral/cirurgia , Trombectomia/efeitos adversos , Idoso , Idoso de 80 Anos ou mais , Isquemia Encefálica/complicações , Estudos de Coortes , Feminino , Humanos , Hemorragias Intracranianas/patologia , Angiografia por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Curva ROC , Acidente Vascular Cerebral/etiologia , Resultado do Tratamento
4.
Front Neurol ; 15: 1286639, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38481942

RESUMO

Introduction: Endovascular thrombectomy (EVT) and concomitant usage of intravenous alteplase (alteplase) in large vessel occlusion stroke may produce unwanted excess intracerebral hemorrhage (ICH). Whether this applies specifically to isolated occlusion of the M1 segment of the middle cerebral artery (MCA) is unknown. Methods: A retrospective study from two tertiary thrombectomy centers. ICH was determined according to Heidelberg Bleeding Classification (HBC). Factors associated with the occurrence of ICH in EVT alone vs. EVT with alteplase were evaluated using logistic regression analysis. Factors related to the clinical outcome as determined with a modified Rankin scale (mRS) were investigated with univariate and adjusted multivariate logistic regression analysis. The interaction between clinical variables and the usage of alteplase on the occurrence of ICH was evaluated. Results: Any ICH occurred in 156/457 (34.1%) patients Class 1a bleeding in 37 (8.1%), type 2 in 45 (9.8%) Class 1c in 22 (4.8%), Class 2 in 25 (5.5%), and Class 3 (extraparenchymal) in 27 (5.9%). ICH occurred in similar frequency between alteplase-treated patients vs. EVT alone (85/262 [32%] vs. 71/195 [36%]; OR 1.19 (95% CI 0.81-1.76). After adjustment, odds for clinical outcome were lower in ICH patients (OR 0.44 [95% CI 0.25-0.74]), p = 0.002). Higher ICH rate was associated with more EVT steps (p for interaction -0.005), and usage of only stent-retriever (p for interaction =0.005). Conclusion: Utilization of alteplase alongside EVT for MCA M1 occlusion did not result in excessive ICH occurrences or clinical deterioration.

5.
J Neurointerv Surg ; 2024 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-38760167

RESUMO

BACKGROUND: Intrasaccular devices have become increasingly popular in the treatment of cerebral aneurysms, particularly at the bifurcation. Here we evaluate the Contour Neurovascular System, an intrasaccular device for the endovascular treatment of cerebral aneurysms, in a multicenter cohort study, the largest to the best of our knowledge. METHODS: Consecutive patients with intracranial aneurysms treated with the Contour Neurovascular System between February 2017 and October 2022 at 10 European neurovascular centers were prospectively collected and retrospectively reviewed. Patient and aneurysm characteristics, procedural details, and angiographic and clinical outcomes were evaluated. RESULTS: During the study period, 279 aneurysms (median age of patients 60 years, IQR 52-68) were treated with Contour. In 83.2% of patients the device was placed electively, whereas the remaining patients were treated in the setting of acute subarachnoid hemorrhage. The most common locations were the middle cerebral artery (26.5%) followed by the anterior communicating region (26.2%). Median aneurysm dome and neck size were 5.2 mm (IQR 4.2-7) and 3.9 mm (IQR 3-5). Contour size 7 (39%) and 9 (25%) were most used. Thromboembolic and hemorrhagic complications occurred in 6.8% and 0.4% of aneurysms, respectively. Raymond-Roy 1 and 2 occlusions at last follow-up were achieved in 63.2% and 28.3%, respectively, resulting in adequate occlusion of 91.5% of aneurysms. CONCLUSION: This is the largest multicenter study reporting the outcome on the Contour Neurovascular System. At 1 year, the self-evaluated data on safety and efficacy are comparable to data of existing intrasaccular devices. Contour is a promising technology in the treatment of cerebral aneurysms.

6.
Wien Klin Wochenschr ; 2024 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-38748063

RESUMO

BACKGROUND: Stroke resulting from occlusion of the middle cerebral artery (MCA) can have devastating consequences, potentially leading to a loss of independence. This study aimed to investigate the relationship between the distance to the thrombus (DT) and both ischemic lesion volume (ILV) and clinical outcomes. METHODS: We retrospectively evaluated patients with thromboembolic MCA M1 segment occlusion who underwent neurovascular imaging followed by endovascular thrombectomy (EVT) at two comprehensive stroke centers over a 3-year period (2018-2020). Preinterventional computed tomography (CT) or magnetic resonance (MR) angiography was used to measure DT, defined as the distance from the carotid­T bifurcation to the proximal surface of the M1 occlusion. Postinterventional CT or MR imaging was employed to determine the ILV and clinical outcomes were assessed using the modified Rankin scale (mRS) at 3 months. RESULTS: There were 346 patients evaluated. The median DT was 9.4 mm (interquartile range, IQR 6.0-13.7 mm) and the median ILV was 13.9 ml (IQR 2.2-53.1 ml). After adjustment, an increase in DT was associated with a decrease in odds for a larger ILV (odds ratio, OR 0.96, 95% confidence interval, CI 0.92-0.99, p = 0.041). Through this association, more distal thrombi were associated with good clinical outcome (mRS 0-2; clinical outcome available in 282 patients, p = 0.018). The ILV was inversely associated with better clinical outcome OR 0.52 (95% CI 0.40-0.67). CONCLUSION: Based on the findings, DT was identified as an independent albeit weak predictor for ILV and clinical outcomes in patients with MCA M1 occlusion who underwent EVT.

7.
J Neurointerv Surg ; 15(1): 70-74, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35580985

RESUMO

Treatment of wide-necked complex intracranial aneurysms continues to challenge neurointerventionalists. Intrasaccular flow diverters have expanded the armamentarium considerably and are now used extensively. While five types of devices have already obtained the CE mark for use within Europe, only the Woven EndoBridge (WEB) device is approved by the US Food and Drug Administration. Other intrasaccular devices are the Luna/Artisse Aneurysm Embolization System (Medtronic), the Medina Embolic Device (Medtronic), the Contour Neurovascular System (Cerus), and the Neqstent Coil Assisted Flow Diverter (Cerus). This mini review will provide a compact overview of these devices and a summary of the current literature.


Assuntos
Embolização Terapêutica , Procedimentos Endovasculares , Aneurisma Intracraniano , Humanos , Resultado do Tratamento , Aneurisma Intracraniano/diagnóstico por imagem , Aneurisma Intracraniano/cirurgia , Europa (Continente)
8.
J Neurosurg ; 139(2): 563-572, 2023 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-36708532

RESUMO

OBJECTIVE: The authors compared the Contour Neurovascular System (Contour) with the Woven EndoBridge (WEB) device for the treatment of wide-necked cerebral aneurysms at a bifurcation or sidewall. METHODS: Prospective clinical and radiological data were collected for all patients treated with either the Contour or WEB at a tertiary university hospital from May 2018 to June 2022. RESULTS: In patients who had at least 3 months of follow-up data available (median patient age 60.0 [IQR 51.8-67.0] years, male/female ratio 1:1.4), the authors compared 40 aneurysms in 34 patients treated with the Contour and 30 aneurysms in 30 patients treated with the WEB. Overall, 26 middle cerebral artery, 24 anterior communicating artery, 9 basilar artery tip, 4 posterior communicating artery, 4 internal carotid artery, 1 anterior cerebral artery, 1 posterior inferior cerebellar artery, and 1 superior cerebellar artery aneurysm were treated. In the Contour cohort, complete occlusion at last follow-up was achieved for 30 aneurysms (75%) and a small neck remnant was seen in 6 aneurysms (15%), summing up to an adequate occlusion rate of 90%. One aneurysm (2.5%) had to be retreated, and 1 symptomatic thromboembolic event (2.5%) was observed with complete remission at discharge. Three adjunctive stents (10%) had to be used due to branch occlusion. In the WEB cohort, adequate occlusion was also seen in 90% of aneurysms (complete occlusion in 19 [63.3%] and remnant neck in 8 [26.7%], with a retreatment rate of 20%). Four WEBs (13.3%) needed additional stent placement due to device protrusion into a branch, 2 asymptomatic thromboembolic events (6.7%) were noted, and 1 major ischemic event (3.3%) due to M2 occlusion was noted. One patient treated with the WEB died between follow-ups of causes unrelated to the aneurysm, treatment, or device. Time from first measurement to deployment and thus total treatment time was significantly shorter in the Contour group (p = 0.004), regardless of whether a prior angiogram was available for aneurysm measurement and device sizing. CONCLUSIONS: Results for the Contour were promising, although longer follow-up is necessary to draw more solid conclusions on the utility and risk profile of this new device compared with the already widely used WEB device. Adequate occlusion at last follow-up was the same for both devices, whereas the probability of complete occlusion at last follow-up was significantly higher for the Contour, and the WEB showed a significantly higher retreatment rate. Median deployment times were significantly shorter with the Contour than the WEB.


Assuntos
Embolização Terapêutica , Procedimentos Endovasculares , Aneurisma Intracraniano , Tromboembolia , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Aneurisma Intracraniano/diagnóstico por imagem , Aneurisma Intracraniano/cirurgia , Resultado do Tratamento , Estudos Prospectivos , Embolização Terapêutica/métodos , Procedimentos Endovasculares/métodos , Tromboembolia/etiologia , Estudos Retrospectivos
9.
Drug Discov Today ; 27(4): 1142-1155, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34838730

RESUMO

Vasculitis affecting the nervous system is a rare disease that can not only present with nonspecific initial symptoms, but also run a severe course without accurate treatment. Although improvements have been achieved, diagnosis of vasculitis remains challenging, because many classification criteria are unspecific or inconclusive with regard to central nervous system (CNS) manifestations. Currently, beside an isolated primary CNS vasculitis, several systemic types of vasculitis are known to affect the nervous system. In this review, we provide an overview of the pathophysiology, current therapeutic guidelines, and highlight novel treatment strategies for CNS vasculitis.


Assuntos
Vasculite do Sistema Nervoso Central , Sistema Nervoso Central , Humanos , Vasculite do Sistema Nervoso Central/diagnóstico , Vasculite do Sistema Nervoso Central/tratamento farmacológico
10.
J Neurointerv Surg ; 14(4): 384-389, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33986108

RESUMO

BACKGROUND: Using a surgical aneurysm model, this study assessed the performance of a new flow diverter (FD), the DiVeRt, and evaluated the angiographic and histologic features at different periods after stent deployment. METHODS: Fifteen New Zealand White rabbits were treated 3 days prior to intervention and until euthanization with dual antiplatelets. DiVeRt was implanted in bilateral carotid aneurysms (n=30) as well as in the aorta (n=15). The rate of technical success, assessment of aneurysm occlusion (measured by the O'Kelly-Marotta grading (OKM) scale), and stent patency were examined using angiography and histologic examinations in three groups at 1, 3, and 6 months follow-up (FU). In each FU group one control animal was included and treated with the XCalibur stent (n=3). RESULTS: Overall, DiVeRt placement was successful and without apparent intraprocedural complications. In total, four stents in the carotid artery were occluded and in-stent stenosis was registered in two carotid (7%) and one aortic (6%) vessels. Complete or near complete aneurysm occlusion (OKM scale D1 and C3) was seen in 100% in the 1-month FU group, 70% in the 2-month FU group, and 100% in the 3-month FU group. Histology showed loose, organizing fibrous tissue matrix within the sac and adequate neck endothelialization in all vessels. All branches covered by the DiVeRt remained patent. CONCLUSIONS: The DiVeRt system appears to be feasible and effective for the treatment of aneurysms with high rates of complete aneurysm occlusion, excellent vessel patency, and evidence of high biocompatibility. Occurrences of parent artery occlusion at follow-up did not result in clinical consequences.


Assuntos
Aneurisma Intracraniano , Angiografia , Animais , Modelos Animais de Doenças , Humanos , Aneurisma Intracraniano/diagnóstico por imagem , Aneurisma Intracraniano/cirurgia , Coelhos , Stents , Resultado do Tratamento
11.
Clin Neuroradiol ; 32(2): 369-374, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34313798

RESUMO

BACKGROUND: Pooled data of randomized controlled trials investigating mechanical thrombectomy (MT) to treat anterior circulation large vessel occlusion have demonstrated safety and effectiveness across all age groups, including ≥ 80 years of age; however, only a few nonagenarians were in the ≥ 80 years subgroup. Therefore, the benefit of MT in nonagenarians is mostly unknown. METHODS: Two comprehensive stroke centers retrospectively reviewed all acute ischemic stroke patients who underwent MT for anterior circulation large vessel occlusion (LVO) stroke between February 2016 and August 2020. Revascularization TICI2b/3, symptomatic intracranial hemorrhage (ICH), and functional outcome using modified Rankin scale (mRS) were assessed for cases aged < 80 years, 80-89 years, and 90-99 years. Favorable functional outcome was defined as mRS 0-2 or reaching the prestroke mRS and moderate as mRS 0-3. RESULTS: The final data set comprised a total of 736 cases. Of these, 466 aged < 80 years, 219 aged 80-89 years, and 51 aged 90-99 years. In nonagenarians, TICI 2b/3 revascularization was observed in 84.3% while symptomatic ICH was observed in 4%. These rates were similar to 80-89 years and < 80 years age groups. Favorable and moderate functional outcome as well as death rates differed significantly between nonagenarians and < 80 years (19.6%, 29.4%, 51.0% vs 47.9%, 60.7%, 18.7%, respectively, p < 0.001), but were similar between nonagenarians and octogenarians (29.7%, 38.8%, 38.8%, p = 0.112-0.211). CONCLUSION: A moderate outcome among nonagenarians was observed in about 30%, while mortality rates were about 50%. Withholding mechanical thrombectomy does not appear justifiable, although the absolute treatment effect among nonagenarians remains unknown.


Assuntos
Arteriopatias Oclusivas , Isquemia Encefálica , AVC Isquêmico , Acidente Vascular Cerebral , Idoso , Idoso de 80 Anos ou mais , Isquemia Encefálica/terapia , Humanos , Hemorragias Intracranianas , Estudos Retrospectivos , Trombectomia , Resultado do Tratamento
12.
World Neurosurg ; 158: e416-e422, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34763103

RESUMO

PURPOSE: Although there is class I evidence for mechanical thrombectomy (MT) for anterior circulation large vessel occlusion (LVO) stroke, no high-class evidence exists for the posterior circulation. Here, we sought to compare clinical features of anterior versus posterior LVO as well as predictors of a posterior LVO MT outcome. METHODS: Patients with acute ischemic stroke who underwent MT for anterior and posterior LVO stroke between February 2016 and August 2020 from 2 comprehensive stroke centers were reviewed. Anterior and posterior LVO strokes were compared. In addition, predictors for a favorable outcome (modified Rankin scale [mRS] 0-3), death (mRS 6), and futile revascularization (mRS 4-6 despite TICI 2b/3 revascularization) for posterior LVO were analyzed. RESULTS: Collectively, 813 LVO thrombectomy cases were analyzed, and 77 of 813 cases (9.5%) were located in the posterior circulation. Although favorable 90-day functional outcome rates did not differ between anterior and posterior LVO (P = 0.093), death was significantly more frequent among posterior LVO cases (P = 0.013). In the posterior LVO subgroup, a primary aspiration technique and successful revascularization TICI 2b/3 irrespective of time to the intervention were independently associated with achieving a favorable outcome. Primary aspiration was identified to inversely associate with futile revascularization. CONCLUSION: Anterior and posterior circulation MT patients have distinct clinical profiles. The use of primary aspiration appears fundamental for beneficial outcomes in posterior circulation MT.


Assuntos
Arteriopatias Oclusivas , Isquemia Encefálica , AVC Isquêmico , Acidente Vascular Cerebral , Arteriopatias Oclusivas/etiologia , Isquemia Encefálica/etiologia , Humanos , Estudos Retrospectivos , Acidente Vascular Cerebral/etiologia , Trombectomia/métodos , Resultado do Tratamento
13.
Front Neurol ; 12: 816511, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35153991

RESUMO

INTRODUCTION: Upon completion of the workup for stroke, etiology cannot be identified in approximately one-third of the patients, with an embolic stroke of undetermined source (ESUS) accounting for around 50% of these cryptogenic etiologies. Whether management of complex long-term monitoring in order to detect suspected atrial fibrillation (AFib) could be initiated and managed through a neurologist is not sufficiently investigated. PATIENTS AND METHODS: We recruited all consecutive patients with ESUS who received implantation after neurological adjudication of Reveal LINQ® loop recorder between January 2016 and July 2020. We collected demographic, clinical, heart- and neuroimaging, laboratory, and electrocardiographic data assessed on prolonged baseline ECG monitoring, number of supraventricular (SVEs) and ventricular (VEs) extrasystolic complexes, and from preimplantation ECG-PQ interval. AFib detection was manually supervised and determined positive when the duration was over 120 s. RESULTS: We followed a total of 131 patients for a median of 504 days. There were 45 (34%) manually verified AFib diagnoses. In univariate analysis, earlier implantation after ESUS was associated with AFib detection (13 vs. 31 days, p = 0.011). In multivariate analysis, increased rate of AFib was associated with a more prolonged PQ interval (per 50-ms increase) (HR 1.99, 95% CI 1.39-2.85) and number of SVEs (HR 1.29, 95% CI 1.05-1.57) measured on pre-implantation ECG. CONCLUSION: We observed similar predictors for Afib after ESUS, albeit with higher frequency than previously reported. This study suggests that the neurologist-led decision, management, and evaluation of ILR after ESUS is feasible.

14.
J Neurol Sci ; 396: 69-75, 2019 01 15.
Artigo em Inglês | MEDLINE | ID: mdl-30419369

RESUMO

BACKGROUND: Clinical outcome after large vessel occlusion (LVO) stroke depends on collateral integrity. We aimed to evaluate whether the completeness of the circle of Willis (CoW) and anterior temporal artery (ATA) determines the status of leptomeningeal collaterals (LC) in patients with acute LVO (internal carotid artery (ICA) and middle cerebral artery M1 (MCA) occlusion) treated with endovascular thrombectomy. PATIENTS AND METHODS: LC, cross-flow through the anterior communicating artery (ACoA), presence of the ipsilateral posterior communicating artery (IpsiPCoA) and presence of the ATA were evaluated using CT angiography. LC was graded as good when ≥50% collateral filling was noted compared to the unaffected hemisphere. RESULTS: We included 159 patients with a median age of 75 years (IQR 63-82), MCA M1 occlusion in 96 (60%) and good outcome in 68 (45.6%). The LC were good in 129 (81.1%) patients. Complete IpsiPCoA and incomplete ACoA status was inversely associated with good LC in LVO (OR 0.51 (95% CI 0.02-0.07)). A complete CoW was associated with good LC in ICA occlusions, OR 8.4 (p = .025). Good outcome (modified Rankin scale 0-2 at 3 months) was associated with good LC (OR 5.63 (95% CI 1.11-28.4)), small ischemic lesion volume (OR 0.94 (95% CI 0.97-0.98)) and absence of the ACoA and IpsiPCoA (OR 4.47 (95% CI 1.09-18.3)). CONCLUSIONS: ATA presence was associated with good leptomeningeal collaterals in LVO (OR 8.13 (95% CI 1.69-39.0)) and in MCA M1 patients (OR 7.9 (95% CI 1.7-36.4)). The effect of ATA was most pronounced in MCA M1 occlusions, and that of ACoA was most pronounced in ICA occlusions.


Assuntos
Circulação Cerebrovascular/fisiologia , Círculo Arterial do Cérebro/fisiologia , Acidente Vascular Cerebral/patologia , Idoso , Idoso de 80 Anos ou mais , Angiografia Digital , Círculo Arterial do Cérebro/diagnóstico por imagem , Angiografia por Tomografia Computadorizada , Procedimentos Endovasculares/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Artéria Cerebral Média/diagnóstico por imagem , Estudos Retrospectivos , Acidente Vascular Cerebral/fisiopatologia , Acidente Vascular Cerebral/cirurgia
15.
Mol Neurobiol ; 56(6): 4582-4588, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30353493

RESUMO

The contribution of lipids, including low- and high-density lipoprotein cholesterol (LDL-C and HDL-C, respectively) and triglycerides (TG), to stroke outcomes is still debated. We sought to determine the impact of LDL-C concentrations on the outcome of patients with ischemic stroke in the anterior circulation who received treatment with endovascular thrombectomy (EVT). We performed a retrospective analysis of consecutive patients with acute ischemic stroke treated at a tertiary center between 2012 and 2016. Patients treated with EVT for large artery occlusion in the anterior circulation were selected. The primary endpoint was functional outcome at 3 months as measured with the modified Rankin Scale (mRS). Secondary outcome measures included hospital death and final infarct volume (FIV). Blood lipid levels were determined in a fasting state, 1 day after admission. We studied a total of 174 patients (44.8% men) with a median age of 74 years (interquartile range [IQR] 61-82) and median National Institutes of Health Stroke Scale at admission of 18 (14-22). Bridging therapy with intravenous tissue-plasminogen activator (t-PA) was administered in 122 (70.5%). The median LDL-C was 90 mg/dl (72-115). LDL-C demonstrated a U-type relationship with FIV (p = 0.036). Eighty-three (50.0%) patients had an mRS of 0-2 at 3 months. This favorable outcome was independently associated with younger age (OR 0.944, 95% CI 0.90-0.99, p = 0.012), thrombolysis in cerebral infarction 2b-3 reperfusion (OR 5.12, 95% CI 1.01-25.80, p = 0.015), smaller FIV (0.97 per cm3, 95% CI 0.97-0.99, p < 0.001), good leptomeningeal collaterals (OR 5.29, 95% CI 1.48-18.9, p = 0.011), and LDL-C more than 77 mg/dl (OR 0.179, 95% CI 0.04-0.74, p = 0.018). A higher LDL-C concentration early in the course of a stroke caused by large artery occlusion in the anterior circulation is independently associated with a favorable clinical outcome at 3 months. Further studies into the pathophysiological mechanisms underlying this observation are warranted.


Assuntos
Isquemia Encefálica/sangue , Isquemia Encefálica/cirurgia , Procedimentos Endovasculares , Lipídeos/sangue , Acidente Vascular Cerebral/sangue , Acidente Vascular Cerebral/cirurgia , Trombectomia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Hiperlipidemias/sangue , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Resultado do Tratamento
16.
J Stroke ; 20(3): 373-384, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30309232

RESUMO

BACKGROUND AND PURPOSE: Reports investigating the relationship between in-procedure blood pressure (BP) and outcomes in patients undergoing endovascular thrombectomy (EVT) due to anterior circulation stroke are sparse and contradictory. METHODS: Consecutive EVT-treated adults (modern stent retrievers, BP managed in line with the recommendations, general anesthesia, invasive BP measurements) were evaluated for associations of the rate of in-procedure systolic BP (SBP) and mean arterial pressure (MAP) excursions to >120%/<80% of the reference values (serial measurements at anesthesia induction) and of the reference BP/weighted in-procedure mean BP with post-procedure imaging outcomes (ischemic lesion volume [ILV], hemorrhages) and 3-month functional outcome (modified Rankin Scale [mRS], score 0 to 2 vs. 3 to 6). RESULTS: Overall 164 patients (70.7% pharmacological reperfusion, 80.5% with good collaterals, 73.8% with successful reperfusion) were evaluated for ILV (range, 0 to 581 cm3) and hemorrhages (incidence 17.7%). Higher rate of in-procedure SBP/MAP excursions to >120% was independently associated with lower ILV, while higher in-procedure mean SBP/MAP was associated with lower odds of hemorrhages. mRS 0-2 was achieved in 75/155 (48.4%) evaluated patients (nine had missing mRS data). Higher rate of SBP/MAP excursions to >120% and higher reference SBP/MAP were independently associated with higher odds of mRS 0-2, while higher ILV was associated with lower odds of mRS 0-2. Rate of SBP/MAP excursions to <80% was not associated with any outcome. CONCLUSION: s In the EVT-treated patients with BP managed within the recommended limits, a better functional outcome might be achieved by targeting in-procedure BP that exceeds the preprocedure values by more than 20%.

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