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1.
Eur Stroke J ; 9(1): 259-264, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37752799

RESUMO

BACKGROUND: Previous studies have revealed that remote ischemic conditioning (RIC) may have a neuroprotective function. However, the potential benefit of RIC for patients with ICH remain unclear. OBJECTIVE: The primary aim of this study is to assess the safety and efficacy of RIC for patients with ICH. METHODS: The Safety and Efficacy of RIC for Spontaneous ICH (SERIC-ICH) is an ongoing prospective, randomized, multicenter, parallel-controlled, and blinded-endpoint clinical trial. The study will enroll an estimated 2000 patients aged ⩾18 years within 24 h after ICH onset, with National Institutes of Health Stroke Scale ⩾6 and Glasgow Coma Scale ⩾8 upon presentation. The patients will be randomly assigned to the RIC or control groups (1:1) and will be treated with cuffs inflated to a pressure of 200 or 60 mmHg, respectively, twice daily for 7 days. Each RIC treatment will consist of four cycles of arm ischemia for 5 min, followed by reperfusion for another 5 min, for a total procedure time of 35 min. The primary efficacy outcome measure is the proportion of patients with good functional outcomes (modified Rankin scale 0-2) at 180 days. The safety outcome measures will include all adverse events and severe adverse events occurring in the course of the study. DISCUSSION: RIC is an inexpensive intervention and might be a strategy to improve outcomes in patients with ICH. The SERIC-ICH trial will investigate whether RIC treatment can be applied as an adjuvant treatment in the acute phase of ICH and identify safety issues.


Assuntos
Hemorragia Cerebral , Projetos de Pesquisa , Estados Unidos , Humanos , Idoso , Estudos Prospectivos , Hemorragia Cerebral/terapia , Isquemia , Avaliação de Resultados em Cuidados de Saúde , Ensaios Clínicos Controlados Aleatórios como Assunto , Estudos Multicêntricos como Assunto
2.
Arterioscler Thromb Vasc Biol ; 43(10): e404-e442, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37706297

RESUMO

The objective of this scientific statement is to evaluate contemporary evidence that either supports or refutes the conclusion that aggressive low-density lipoprotein cholesterol lowering or lipid lowering exerts toxic effects on the brain, leading to cognitive impairment or dementia or hemorrhagic stroke. The writing group used literature reviews, references to published clinical and epidemiology studies, clinical and public health guidelines, authoritative statements, and expert opinion to summarize existing evidence and to identify gaps in current knowledge. Although some retrospective, case control, and prospective longitudinal studies suggest that statins and low-density lipoprotein cholesterol lowering are associated with cognitive impairment or dementia, the preponderance of observational studies and data from randomized trials do not support this conclusion. The risk of a hemorrhagic stroke associated with statin therapy in patients without a history of cerebrovascular disease is nonsignificant, and achieving very low levels of low-density lipoprotein cholesterol does not increase that risk. Data reflecting the risk of hemorrhagic stroke with lipid-lowering treatment among patients with a history of hemorrhagic stroke are not robust and require additional focused study.


Assuntos
Anticolesterolemiantes , Demência , Acidente Vascular Cerebral Hemorrágico , Inibidores de Hidroximetilglutaril-CoA Redutases , Acidente Vascular Cerebral , Humanos , American Heart Association , Anticolesterolemiantes/efeitos adversos , Encéfalo , LDL-Colesterol , Demência/diagnóstico , Demência/epidemiologia , Demência/prevenção & controle , Ezetimiba , Acidente Vascular Cerebral Hemorrágico/diagnóstico , Acidente Vascular Cerebral Hemorrágico/epidemiologia , Acidente Vascular Cerebral Hemorrágico/prevenção & controle , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , Estudos Prospectivos , Estudos Retrospectivos , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/prevenção & controle
3.
Neurohospitalist ; 13(2): 159-163, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37064941

RESUMO

Background: We sought to determine mobilization practices following emergency stroke therapy in centers across the United States. Methods: We surveyed hospitals in the NIH StrokeNet regarding mobilization practices following acute stroke thrombolysis and/or thrombectomy. An anonymous survey was sent out to all StrokeNet sites Survey questions included stroke center designation, location of admission, whether a formal bed rest protocol was in place, minimum bed rest period required, which person first mobilized the patient. Results: 48 centers responded to the survey including 45 Comprehensive Stroke Centers and 3 Primary Stroke Centers. Most patients were admitted to a neuro-intensive care unit (54%), others to a general medical/surgical ICU, stroke ward, or combination. 60% of respondents indicated that a formal bed rest policy was in place. Minimum bed rest requirements after thrombolysis alone ranged from 0 to 24 hours (35% with a 24-hour bed rest protocol, 19% with no minimum, 13% with a 12-hour minimum, 4% with an 8-hour minimum, 4% with a 6-hour minimum, and 6% with a variable rest period). Similar variations were reported in patients undergoing thrombectomy with ranges from 0 to 24 hours bed rest. First mobilization was by a nurse 52% of the time and by a physical therapist 48% of the time. Conclusions: Mobilization practices following emergency ischemic stroke reperfusion treatments vary significantly across stroke centers. Mobilization of patients is performed primarily by nurses and therapists. Further study regarding an optimal approach for mobilization following acute ischemic stroke thrombolysis and/or thrombectomy is warranted.

4.
Stroke ; 54(7): 1909-1919, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37078281

RESUMO

From 2016 to 2021, the National Institutes of Health Stroke Trials Network funded by National Institutes of Health/National Institute of Neurological Disorders and Stroke initiated ten multicenter randomized controlled clinical trials. Optimal subject randomization designs are demanded with 4 critical properties: (1) protection of treatment assignment randomness, (2) achievement of the desired treatment allocation ratio, (3) balancing of baseline covariates, and (4) ease of implementation. For acute stroke trials, it is necessary to minimize the time between eligibility assessment and treatment initiation. This article reviews the randomization designs for 3 trials currently enrolling in Stroke Trials Network funded by National Institutes of Health/National Institute of Neurological Disorders and Stroke, the SATURN (Statins in Intracerebral Hemorrhage Trial), the MOST (Multiarm Optimization of Stroke Thrombolysis Trial), and the FASTEST (Recombinant Factor VIIa for Hemorrhagic Stroke Trial). Randomization methods utilized in these trials include minimal sufficient balance, block urn design, big stick design, and step-forward randomization. Their advantages and limitations are reviewed and compared with traditional stratified permuted block design and minimization.


Assuntos
National Institute of Neurological Disorders and Stroke (USA) , Acidente Vascular Cerebral , Humanos , Hemorragia Cerebral/terapia , Estudos Multicêntricos como Assunto , National Institutes of Health (U.S.) , Distribuição Aleatória , Acidente Vascular Cerebral/tratamento farmacológico , Estados Unidos , Ensaios Clínicos Controlados Aleatórios como Assunto
5.
Neuroradiol J ; 36(3): 259-266, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36045600

RESUMO

Purpose: Routine head and neck CTAs (CTAhead+neck) performed for dizziness in the Emergency Department (ED) has steadily increased, but its clinical utility is still poorly elucidated. Our purpose was to assess the radiologic outcomes of CTAhead+neck in ED dizziness patients.Methods: ED dizziness patients with CTAhead+neck from January 2010 through November 2019 were retrospectively identified and further stratified into central vertigo (CV), peripheral vertigo (PV), and non-specific dizziness (NSD) groups by final clinical diagnoses. Findings on CTAhead+neck (vessel stenosis >50%, occlusion, dissection, and infarct), and infarct on subsequent MRI if performed, were assessed. Differences in imaging findings were analyzed using chi-square or Fisher's exact tests.Results: Of 867 dizziness patients, 88 were diagnosed with CV, 383 with PV, and 396 with NSD. On CTAhead+neck, 11.4% of all patients had posterior CTA findings, including posterior occlusions (4.2%), dissections (1.2%), and infarcts (2.3%). CV patients had more posterior circulation findings (31.8%) versus PV (9.9%) and NSD (8.3%) patients (both p < 0.01). 21.6% of CV patients had acute infarcts on CT versus none for PV and 0.03% for NSD patients (both p < 0.01). On MRI, 46.6% of CV patients had acute posterior circulation infarcts versus none for PV and 0.3% for NSD patients (p < 0.01).Conclusion: Diagnostic yield for CTAhead+neck for dizziness patients is low except in central vertigo patients which constitute only 1/10th of CTAs performed. Our single institution results support that CTAhead+neck is likely low-yield in patients with high clinical suspicion for PV or NSD and further studies are needed to test this hypothesis.


Assuntos
Tontura , Vertigem , Humanos , Tontura/diagnóstico por imagem , Tontura/etiologia , Estudos Retrospectivos , Vertigem/diagnóstico por imagem , Vertigem/etiologia , Tomografia Computadorizada por Raios X/métodos , Serviço Hospitalar de Emergência
6.
Front Neurol ; 13: 859894, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36062017

RESUMO

Background and purpose: Therapeutic hypothermia (TH), or targeted temperature management (TTM), is a classic treatment option for reducing inflammation and potentially other destructive processes across a wide range of pathologies, and has been successfully used in numerous disease states. The ability for TH to improve neurological outcomes seems promising for inflammatory injuries but has yet to demonstrate clinical benefit in the intracerebral hemorrhage (ICH) patient population. Minimally invasive ICH evacuation also presents a promising option for ICH treatment with strong preclinical data but has yet to demonstrate functional improvement in large randomized trials. The biochemical mechanisms of action of ICH evacuation and TH appear to be synergistic, and thus combining hematoma evacuation with cooling therapy could provide synergistic benefits. The purpose of this working group was to develop consensus recommendations on optimal clinical trial design and outcomes for the use of therapeutic hypothermia in ICH in conjunction with minimally invasive ICH evacuation. Methods: An international panel of experts on the intersection of critical-care TH and ICH was convened to analyze available evidence and form a consensus on critical elements of a focal cooling protocol and clinical trial design. Three focused sessions and three full-group meetings were held virtually from December 2020 to February 2021. Each meeting focused on a specific subtopic, allowing for guided, open discussion. Results: These recommendations detail key elements of a clinical cooling protocol and an outline for the roll-out of clinical trials to test and validate the use of TH in conjunction with hematoma evacuation as well as late-stage protocols to improve the cooling approach. The combined use of systemic normothermia and localized moderate (33.5°C) hypothermia was identified as the most promising treatment strategy. Conclusions: These recommendations provide a general outline for the use of TH after minimally invasive ICH evacuation. More research is needed to further refine the use and combination of these promising treatment paradigms for this patient population.

9.
Stroke ; 53(9): 2876-2886, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35521958

RESUMO

BACKGROUND: In patients with intracerebral hemorrhage (ICH), the presence of intraventricular hemorrhage constitutes a promising therapeutic target. Intraventricular fibrinolysis (IVF) reduces mortality, yet impact on functional disability remains unclear. Thus, we aimed to determine the influence of IVF on functional outcomes. METHODS: This individual participant data meta-analysis pooled 1501 patients from 2 randomized trials and 7 observational studies enrolled during 2004 to 2015. We compared IVF versus standard of care (including placebo) in patients treated with external ventricular drainage due to acute hydrocephalus caused by ICH with intraventricular hemorrhage. The primary outcome was functional disability evaluated by the modified Rankin Scale (mRS; range: 0-6, lower scores indicating less disability) at 6 months, dichotomized into mRS score: 0 to 3 versus mRS: 4 to 6. Secondary outcomes included ordinal-shift analysis, all-cause mortality, and intracranial adverse events. Confounding and bias were adjusted by random effects and doubly robust models to calculate odds ratios and absolute treatment effects (ATE). RESULTS: Comparing treatment of 596 with IVF to 905 with standard of care resulted in an ATE to achieve the primary outcome of 9.3% (95% CI, 4.4-14.1). IVF treatment showed a significant shift towards improved outcome across the entire range of mRS estimates, common odds ratio, 1.75 (95% CI, 1.39-2.17), reduced mortality, odds ratio, 0.47 (95% CI, 0.35-0.64), without increased adverse events, absolute difference, 1.0% (95% CI, -2.7 to 4.8). Exploratory analyses provided that early IVF treatment (≤48 hours) after symptom onset was associated with an ATE, 15.2% (95% CI, 8.6-21.8) to achieve the primary outcome. CONCLUSIONS: As compared to standard of care, the administration of IVF in patients with acute hydrocephalus caused by intracerebral and intraventricular hemorrhage was significantly associated with improved functional outcome at 6 months. The treatment effect was linked to an early time window <48 hours, specifying a target population for future trials.


Assuntos
Fibrinólise , Hidrocefalia , Hemorragia Cerebral/diagnóstico por imagem , Hemorragia Cerebral/tratamento farmacológico , Drenagem/métodos , Fibrinolíticos , Humanos , Estudos Observacionais como Assunto , Resultado do Tratamento
12.
J Stroke Cerebrovasc Dis ; 30(10): 106024, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34438280

RESUMO

OBJECTIVES: Cerebrovascular disease is the leading cause of seizures and incident epilepsy of known etiology in older adults. Statins have increasingly garnered attention as a potential preventive strategy due to their pleiotropic effects beyond lipid-lowering, which may include neuroprotective and anti-epileptogenic properties. We aim to assess the evidence on statin use for prevention of post-stroke early-onset seizures and post-stroke epilepsy. MATERIALS AND METHODS: We conducted a systematic review and meta-analysis in accordance with PRISMA guidelines, which was prospectively registered with PROSPERO (CRD42019144916). PubMed and Embase were searched from database inception to 05/2020 for English-language, full-text studies examining the association between statin use in adults and development of early-onset seizures (≤7 days post-stroke) or post-stroke epilepsy. Pooled analyses were based on random-effects models using the inverse-variance method. RESULTS: Of 182 citations identified, 175 were excluded due to duplication or ineligibility. The 7 eligible publications were all cohort studies from East Asia or South America, with a total of 53,579 patients. Pre-stroke statin use was not associated with post-stroke epilepsy (3 studies pooled: OR 1.14, CI 0.91-1.42). However, post-stroke statin use was associated with lower risk of both early-onset seizures (3 studies pooled: OR 0.36, CI 0.25-0.53), and post-stroke epilepsy (6 studies pooled: OR 0.64, CI 0.46-0.88). CONCLUSIONS: Review of 7 cohort studies suggested post-stroke, but not pre-stroke, statin use may be associated with reduced risk of early-onset seizures and post-stroke epilepsy. Further research is warranted to validate these findings in broader populations and better parse the temporal components of the associations.


Assuntos
Anticonvulsivantes/uso terapêutico , Encéfalo/efeitos dos fármacos , Epilepsia/prevenção & controle , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Convulsões/prevenção & controle , Acidente Vascular Cerebral/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Anticonvulsivantes/efeitos adversos , Encéfalo/fisiopatologia , Epilepsia/diagnóstico , Epilepsia/etiologia , Epilepsia/fisiopatologia , Feminino , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , Masculino , Pessoa de Meia-Idade , Fatores de Proteção , Medição de Risco , Fatores de Risco , Convulsões/diagnóstico , Convulsões/etiologia , Convulsões/fisiopatologia , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/fisiopatologia , Fatores de Tempo , Resultado do Tratamento
13.
Stroke Vasc Neurol ; 6(4): 536-541, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-33758069

RESUMO

OBJECTIVE: The concept of the 'self-fulfilling prophecy' is well established in intracerebral haemorrhage (ICH). The ability to improve prognostication and prediction of long-term outcomes during the first days of hospitalisation is important in guiding conversations around goals of care. We previously demonstrated that incorporating delayed imaging into various prognostication scores for ICH improves the predictive accuracy of 90-day mortality. However, delayed prognostication scores have not been used to predict long-term functional outcomes beyond 90 days. DESIGN, SETTING AND PARTICIPANTS: We analysed data from the ICH Deferoxamine trial to see if delaying the use of prognostication scores to 96 hours after ICH onset will improve performance to predict outcomes at 180 days. 276 patients were included. INTERVENTIONS AND MEASUREMENTS: We calculated the original ICH score (oICH), modified-ICH score (MICH), max-ICH score and the FUNC score on presentation (baseline), and on day 4 (delayed). Outcomes assessed were mortality and poor functional outcome in survivors (defined as modified Rankin Scale of 4-5) at 180 days. We generated receiver operating characteristic curves, and measured the area under the curve values (AUC) for mortality and functional outcome. We compared baseline and delayed AUCs with non-parametric methods. RESULTS: At 180 days, 21 of 276 (7.6%) died. Out of the survivors, 54 of 255 had poor functional outcome (21.2%). The oICH, MICH and max-ICH performed significantly better at predicting 180-day mortality when calculated 4 days later compared with their baseline equivalents ((0.74 vs 0.83, p=0.005), (0.73 vs 0.80, p=0.036), (0.74 vs 0.83, p=0.008), respectively). The delayed calculation of these scores did not significantly improve our accuracy for predicting poor functional outcomes. CONCLUSION: Delaying the calculation of prognostication scores in acute ICH until day 4 improved prediction of 6-month mortality but not functional outcomes. TRIAL REGISTRATION NUMBER: ClinicalTrials.gov Registry (NCT02175225).


Assuntos
Hemorragia Cerebral , Hemorragia Cerebral/diagnóstico por imagem , Hemorragia Cerebral/terapia , Humanos , Valor Preditivo dos Testes , Prognóstico , Curva ROC , Sistema de Registros
15.
J Neurol Sci ; 420: 117224, 2021 01 15.
Artigo em Inglês | MEDLINE | ID: mdl-33183779

RESUMO

Although statins have been associated with increased risk of spontaneous intracerebral hemorrhage, their relationship with cerebral microbleeds (CMBs) formation is poorly understood. We systematically reviewed previously published studies reporting on the association between CMBs presence and current statin use. We performed a systematic search in MEDLINE and SCOPUS databases on October 24, 2019 to identify all cohorts from randomized-controlled clinical trials or observational studies reporting on CMB prevalence and statin use. We extracted cross-sectional data on CMBs presence, as provided by each study, in association to the history of current statin use. Random effects model was used to calculate the pooled estimates. We included 7 studies (n = 3734 participants): unselected general population [n = 1965], ischemic stroke [n = 849], hemorrhagic stroke [n = 252] and patients with hypertension over the age of 60 [n = 668]. Statin use was not associated with CMBs presence in either unadjusted (OR = 1.15, 95%CI: 0.76-1.74) or adjusted analyses (OR = 1.09, 95%CI: 0.64-1.86). Statin use was more strongly related to lobar CMB presence (OR = 2.01, 95%CI: 1.48-2.72) in unadjusted analysis. The effect size of this association was consistent, but no longer statistically significant in adjusted analysis that was confined to two eligible studies (OR = 2.26, 95%CI: 0.86-5.91). Except for the analysis on the unadjusted probability of lobar CMBs presence, considerable heterogeneity was present in all other analyses (I2 > 60%). Our findings suggest that statin treatment seems not to be associated with CMBs overall, but may increase the risk of lobar CMB formation. This hypothesis deserves further investigation within magnetic resonance imaging ancillary studies of randomized trials.


Assuntos
Inibidores de Hidroximetilglutaril-CoA Redutases , Acidente Vascular Cerebral , Hemorragia Cerebral/induzido quimicamente , Hemorragia Cerebral/diagnóstico por imagem , Hemorragia Cerebral/epidemiologia , Estudos Transversais , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , Imageamento por Ressonância Magnética , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/tratamento farmacológico , Acidente Vascular Cerebral/epidemiologia
16.
Stroke Vasc Neurol ; 5(4): 403-405, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32855352

RESUMO

INTRODUCTION: Patients with stroke-like symptoms may be underutilising emergency medical services and avoiding hospitalisation during the COVID-19 pandemic. We investigated a decline in admissions for stroke and transient ischaemic attack (TIA) and emergency department (ED) stroke alert activations. METHODS: We retrospectively compiled total weekly hospital admissions for stroke and TIA between 31 December 2018 and 21 April 2019 versus 30 December 2019 and 19 April 2020 at five US tertiary academic comprehensive stroke centres in cities with early COVID-19 outbreaks in Boston, New York City, Providence and Seattle. We collected available data on ED stroke alerts, stroke severity using the National Institutes of Health Stroke Scale (NIHSS) and time from symptom onset to hospital arrival. RESULTS: Compared with 31 December 2018 to 21 April 2019, a decline in stroke/TIA admissions and ED stroke alerts occurred during 30 December 2019 to 19 April 2020 (p trend <0.001 for each). The declines coincided with state stay-at-home recommendations in late March. The greatest decline in hospital admissions was observed between 23 March and 19 April 2020, with a 31% decline compared with the corresponding weeks in 2019. Three of the five centres with 2019 and 2020 stroke alert data had a 46% decline in ED stroke alerts in late March and April 2020, compared with 2019. Median baseline NIHSS during these 4 weeks was 10 in 2020 and 7 in 2019. There was no difference in time from symptom onset to hospital arrival. CONCLUSION: At these five large academic US hospitals, admissions for stroke and TIA declined during the COVID-19 pandemic. There was a trend for fewer ED stroke alerts at three of the five centres with available 2019 and 2020 data. Acute stroke therapies are time-sensitive, so decreased healthcare access or utilisation may lead to more disabling or fatal strokes, or more severe non-neurological complications related to stroke. Our findings underscore the indirect effects of this pandemic. Public health officials, hospital systems and healthcare providers must continue to encourage patients with stroke to seek acute care during this crisis.


Assuntos
COVID-19 , Hospitalização/estatística & dados numéricos , Pandemias , Acidente Vascular Cerebral/epidemiologia , Serviços Médicos de Emergência/estatística & dados numéricos , Feminino , Humanos , Ataque Isquêmico Transitório/epidemiologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Tempo para o Tratamento , Estados Unidos/epidemiologia
17.
JAMA Neurol ; 77(10): 1252-1260, 2020 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-32511690

RESUMO

Importance: Intracerebral hemorrhage (ICH) has the highest mortality of all stroke types and is the most serious complication of anticoagulation. Data regarding trends in ICH incidence and location-specific risk factors on the population level are conflicting. Objective: To assess long-term population-based trends in the incidence of ICH, examine incidence rates stratified by deep and lobar locations, and characterize location-specific risk factors. Design, Setting, and Participants: This longitudinal prospective community-based cohort study comprised 10 333 original participants (n = 5209; age range, 28-62 years) and offspring participants (n = 5124; age range, 5-70 years) from the Framingham Heart Study who were followed up from January 1, 1948, to December 31, 2016. Original and offspring patient cohorts were confirmed to have experienced a spontaneous ICH event through imaging or pathologic testing. A total of 129 participants were identified with a primary incident of ICH. After exclusions, the remaining 99 patients were divided into 2 nested case-control samples, which were created by stratifying the first incident of ICH by brain region (lobar ICH or deep ICH), with 55 patients included in the lobar ICH sample and 44 patients included in the deep ICH sample. Patients were matched by age and sex (1:4 ratio) with 396 individuals without any stroke event (the control group). No participant in the patient samples was excluded or approached for consent, as their initial consent to participate in the Framingham Heart Study included consent to follow-up of cardiovascular outcomes. Data were analyzed in October 2019. Main Outcomes and Measures: The unadjusted and age-adjusted ICH incidence rates, assessed in 3 periods (period 1, from 1948-1986; period 2, from 1987-1999; and period 3, from 2000-2016) to study incidence trends. Nested case-control samples were used to examine baseline risk factors and medication exposures with the incidence of ICH events located in the lobar and deep brain regions within the 10 years before participants experienced a stroke event. Results: Of 10 333 original and offspring participants in the Framingham Heart Study, 129 patients (72 women [55.8%]; mean [SD] age, 77 [11] years) experienced a primary ICH incident during a follow-up period of 68 years (301 282 person-years), with an incidence rate of 43 cases per 100 000 person-years. The unadjusted incidence rate increased over time, but the age-adjusted incidence rate decreased slightly between periods 2 and 3. An age-stratified analysis indicated a continued increase in ICH incidence among patients 75 years and older, reaching 176 cases per 100 000 person-years in period 3. A concurrent 3-fold increase in the use of anticoagulant medications was observed, from 4.4% in period 2 to 13.9% in period 3. The incidence rate increased substantially with age for both lobar and deep ICH. Higher systolic and diastolic blood pressure and statin medication use (odds ratio [OR], 4.07; 95% CI, 1.16-14.21; P = .03) were associated with the incidence of deep ICH. Higher systolic blood pressure and apolipoprotein E ε4 allele homozygosity (OR, 3.66; 95% CI, 1.28-10.43; P = .02) were associated with the incidence of lobar ICH. Conclusions and Relevance: This study found that the incidence of ICH increased in the oldest patients. Hypertension is a treatable risk factor for both deep and lobar ICH, while the use of statin medications is associated with the risk of a deep ICH event.


Assuntos
Hemorragia Cerebral/diagnóstico por imagem , Hemorragia Cerebral/epidemiologia , Interpretação Estatística de Dados , Adolescente , Adulto , Idoso , Estudos de Casos e Controles , Hemorragia Cerebral/patologia , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Humanos , Incidência , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Adulto Jovem
18.
Transl Stroke Res ; 11(3): 412-417, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-31432328

RESUMO

We assessed an injectable gelatin hydrogel containing epidermal growth factor (Gtn-EGF) as a therapy for intracerebral hemorrhage (ICH). ICH was induced in rats via collagenase injection into the striatum. Two weeks later, Gtn-EGF was injected into the cavitary lesion. The hydrogel filled ICH cavities without deforming brain tissue. Immunostaining demonstrated that neural precursor cells could migrate into the matrix, and some of these differentiated into neurons along with the appearance of astrocytes, oligodendrocytes, and endothelial cells. Sensorimotor tests suggested that Gtn-EGF improved neurological recovery. This study provides proof-of-principle that injectable biomaterials may be a translationally relevant approach for treating ICH.


Assuntos
Encéfalo/efeitos dos fármacos , Encéfalo/patologia , Hemorragia Cerebral/tratamento farmacológico , Hemorragia Cerebral/patologia , Sistemas de Liberação de Medicamentos/instrumentação , Sistemas de Liberação de Medicamentos/métodos , Fator de Crescimento Epidérmico/administração & dosagem , Fármacos Neuroprotetores/administração & dosagem , Animais , Modelos Animais de Doenças , Gelatina/administração & dosagem , Hidrogéis/administração & dosagem , Masculino , Ratos Sprague-Dawley
19.
J Neurol ; 267(4): 1053-1062, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31848737

RESUMO

BACKGROUND: Every anticoagulation decision has in inherent risk of hemorrhage; intracerebral hemorrhage (ICH) is the most devastating hemorrhagic complication. We examined whether combining ischemic and hemorrhagic stroke risk in individual patients might provide a meaningful paradigm for risk stratification. METHODS: We enrolled consecutive patients with anticoagulation-associated ICH in 15 tertiary centers in the USA, Europe and Asia between 2015 and 2017. Each patient was assigned baseline ischemic stroke and hemorrhage risk based on their CHA2DS2-VASc and HAS-BLED scores. We computed a net risk by subtracting hemorrhagic from ischemic risk. If the sum was positive the patient was assigned a "Favorable" indication for anticoagulation; if negative, "Unfavorable". RESULTS: We enrolled 357 patients [59% men, median age 76 (68-82) years]. 31% used non-vitamin K antagonist (NOAC). 191 (53.5%) patients had a favorable indication for anticoagulation prior to their ICH; 166 (46.5%) unfavorable. Those with unfavorable indication were younger [72 (66-80) vs 78 (73-84) years, p = 0.001], with lower CHA2DS2-VASc score [3(3-4) vs 5(4-6), p < 0.001]. Those with favorable indication had a significantly higher prevalence of most cardiovascular risk factors and were more likely to use a NOAC (35% vs 25%, p = 0.045). Both groups had similar prevalence of hypertension and chronic kidney disease. CONCLUSIONS: In this anticoagulation-associated ICH cohort, baseline hemorrhagic risk exceeded ischemic risk in approximately 50%, highlighting the importance of careful consideration of risk/benefit ratio prior to anticoagulation decisions. The remaining 50% suffered an ICH despite excess baseline ischemic risk, stressing the need for biomarkers to allow more precise estimation of hemorrhagic complication risk.


Assuntos
Anticoagulantes/efeitos adversos , Hemorragia Cerebral/induzido quimicamente , Hemorragia Cerebral/epidemiologia , AVC Isquêmico/tratamento farmacológico , AVC Isquêmico/epidemiologia , Medição de Risco/normas , Índice de Gravidade de Doença , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Humanos , Masculino
20.
J Neurol Sci ; 409: 116628, 2020 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-31862517

RESUMO

Although intracerebral hemorrhage (ICH) score is used to provide an estimate on the probability of mortality following spontaneous ICH of any cause, its utility has not been exclusively tested in ICH patients with history of treatment with vitamin K antagonists (VKAs) or non-vitamin K oral anticoagulants (NOACs). The aim of the present report is to investigate the utility of ICH score for mortality prognostication of VKA-ICH and NOAC-ICH patients. We used receiver operating characteristic curve analyses to estimate the accuracy parameters for the different values of ICH score in the prognosis of mortality within 30-days after the onset of NOAC-ICH or VKA-ICH. We analyzed data from 108 NOAC-ICH and 241 VKA-ICH patients (median age 76 years, 58% males, median NIHSS score 11 points, median ICH-score 2 points). ICH score of 4 points was uncovered to be the most favorable threshold for the prediction of 30-day mortality both after NOAC-ICH (sensitivity: 57.7%, specificity: 98.8%) or VKA-ICH (sensitivity: 42.1%, specificity: 92.6%). However, comparison of the areas under the curve (AUC) suggested a cumulatively higher (p = .001) predictive value of ICH-score in the prognostication of 30-day mortality after ICH related to the use of NOACs (AUC: 0.92, 95%CI: 0.86-0.98) compared to the ICH related to the use of VKAs (AUC: 0.77, 95%CI: 0.70-0.83). In conclusion, ICH score seems to have an adequate predictive utility in the prognostication of 30-day mortality following an ICH related to the use of oral anticoagulants, with better yield in ICH cases associated with the use of NOACs.


Assuntos
Anticoagulantes/administração & dosagem , Anticoagulantes/efeitos adversos , Hemorragia Cerebral/induzido quimicamente , Hemorragia Cerebral/diagnóstico por imagem , Internacionalidade , Administração Oral , Idoso , Idoso de 80 Anos ou mais , Hemorragia Cerebral/mortalidade , Estudos de Coortes , Feminino , Humanos , Masculino , Mortalidade/tendências , Prognóstico , Estudos Prospectivos , Vitamina K/antagonistas & inibidores
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