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1.
Stroke ; 54(3): 715-721, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36756899

RESUMEN

BACKGROUND: In the SPOTLIGHT trial (Spot Sign Selection of Intracerebral Hemorrhage to Guide Hemostatic Therapy), patients with a computed tomography (CT) angiography spot-sign positive acute intracerebral hemorrhage were randomized to rFVIIa (recombinant activated factor VIIa; 80 µg/kg) or placebo within 6 hours of onset, aiming to limit hematoma expansion. Administration of rFVIIa did not significantly reduce hematoma expansion. In this prespecified analysis, we aimed to investigate the impact of delays from baseline imaging to study drug administration on hematoma expansion. METHODS: Hematoma volumes were measured on the baseline CT, early post-dose CT, and 24 hours CT scans. Total hematoma volume (intracerebral hemorrhage+intraventricular hemorrhage) change between the 3 scans was calculated as an estimate of how much hematoma expansion occurred before and after studying drug administration. RESULTS: Of the 50 patients included in the trial, 44 had an early post-dose CT scan. Median time (interquartile range) from onset to baseline CT was 1.4 hours (1.2-2.6). Median time from baseline CT to study drug was 62.5 (55-80) minutes, and from study drug to early post-dose CT was 19 (14.5-30) minutes. Median (interquartile range) total hematoma volume increased from baseline CT to early post-dose CT by 10.0 mL (-0.7 to 18.5) in the rFVIIa arm and 5.4 mL (1.8-8.3) in the placebo arm (P=0.96). Median volume change between the early post-dose CT and follow-up scan was 0.6 mL (-2.6 to 8.3) in the rFVIIa arm and 0.7 mL (-1.6 to 2.1) in the placebo arm (P=0.98). Total hematoma volume decreased between the early post-dose CT and 24-hour scan in 44.2% of cases (rFVIIa 38.9% and placebo 48%). The adjusted hematoma growth in volume immediately post dose for FVIIa was 0.998 times that of placebo ([95% CI, 0.71-1.43]; P=0.99). The hourly growth in FFVIIa was 0.998 times that for placebo ([95% CI, 0.994-1.003]; P=0.50; Table 3). CONCLUSIONS: In the SPOTLIGHT trial, the adjusted hematoma volume growth was not associated with Factor VIIa treatment. Most hematoma expansion occurred between the baseline CT and the early post-dose CT, limiting any potential treatment effect of hemostatic therapy. Future hemostatic trials must treat intracerebral hemorrhage patients earlier from onset, with minimal delay between baseline CT and drug administration. REGISTRATION: URL: https://www. CLINICALTRIALS: gov; Unique identifier: NCT01359202.


Asunto(s)
Factor VIIa , Hemostáticos , Humanos , Factor VIIa/uso terapéutico , Hemorragia Cerebral/diagnóstico por imagen , Hemorragia Cerebral/tratamiento farmacológico , Hemorragia Cerebral/complicaciones , Hematoma/diagnóstico por imagen , Hematoma/tratamiento farmacológico , Tomografía Computarizada por Rayos X , Hemostáticos/uso terapéutico
2.
Stroke ; 42(9): 2419-24, 2011 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-21757665

RESUMEN

BACKGROUND AND PURPOSE: Previous studies concerning internal carotid artery (ICA) occlusion have focused on long-term prognosis. The purpose of the present study was to evaluate short-term outcomes of patients with symptomatic ICA occlusion. METHODS: We used data from the Registry of the Canadian Stroke Network on consecutive patients presenting to 11 stroke centers in Ontario. We included patients with noncardioembolic ischemic stroke or transient ischemic attack within the anterior circulation. The resulting cohort was divided into 4 groups based on vascular imaging of the ipsilateral extracranial ICA: occlusion, severe stenosis, moderate stenosis, and mild/no stenosis. Logistic regression modeling was used to evaluate the association between the degree of stenosis/occlusion of the symptomatic ICA and a series of short-term outcome measures. RESULTS: Of the 4144 patients who met study criteria, 283 patients had a symptomatic ICA occlusion. Compared with patients with ICA occlusion, patients with all other degrees of stenosis had a lower risk of in-hospital death, neurological worsening, and poor functional outcome. Particularly, severe stenosis was associated with a lower risk of in-hospital death (adjusted OR, 0.40; 95% CI, 0.20 to 0.79), neurological worsening (adjusted OR, 0.52; 95% CI, 0.34 to 0.78), and poor functional outcome (adjusted OR, 0.62; 95% CI, 0.41 to 0.94) compared with the ICA occlusion group. CONCLUSIONS: The results of our study showed that patients with symptomatic ICA occlusion are at a high risk of adverse outcomes that is as severe, if not worse, than any other degree of ICA stenosis in the short term. Thus, more aggressive management may be warranted for patients with acute, symptomatic ICA occlusion.


Asunto(s)
Isquemia Encefálica/mortalidad , Estenosis Carotídea/mortalidad , Mortalidad Hospitalaria , Sistema de Registros , Accidente Cerebrovascular/mortalidad , Anciano , Anciano de 80 o más Años , Isquemia Encefálica/etiología , Estenosis Carotídea/complicaciones , Femenino , Humanos , Masculino , Persona de Mediana Edad , Ontario , Factores de Riesgo , Accidente Cerebrovascular/etiología , Factores de Tiempo
3.
BMJ Open ; 9(11): e031144, 2019 11 14.
Artículo en Inglés | MEDLINE | ID: mdl-31727655

RESUMEN

INTRODUCTION: Worldwide, 2 million patients aged 18-50 years suffer a stroke each year, and this number is increasing. Knowledge about global distribution of risk factors and aetiologies, and information about prognosis and optimal secondary prevention in young stroke patients are limited. This limits evidence-based treatment and hampers the provision of appropriate information regarding the causes of stroke, risk factors and prognosis of young stroke patients. METHODS AND ANALYSIS: The Global Outcome Assessment Life-long after stroke in young adults (GOAL) initiative aims to perform a global individual patient data meta-analysis with existing data from young stroke cohorts worldwide. All patients aged 18-50 years with ischaemic stroke or intracerebral haemorrhage will be included. Outcomes will be the distribution of stroke aetiology and (vascular) risk factors, functional outcome after stroke, risk of recurrent vascular events and death and finally the use of secondary prevention. Subgroup analyses will be made based on age, gender, aetiology, ethnicity and climate of residence. ETHICS AND DISSEMINATION: Ethical approval for the GOAL study has already been obtained from the Medical Review Ethics Committee region Arnhem-Nijmegen. Additionally and when necessary, approval will also be obtained from national or local institutional review boards in the participating centres. When needed, a standardised data transfer agreement will be provided for participating centres. We plan dissemination of our results in peer-reviewed international scientific journals and through conference presentations. We expect that the results of this unique study will lead to better understanding of worldwide differences in risk factors, causes and outcome of young stroke patients.


Asunto(s)
Isquemia Encefálica/epidemiología , Hemorragia Cerebral/epidemiología , Accidente Cerebrovascular/epidemiología , Adolescente , Adulto , Isquemia Encefálica/mortalidad , Isquemia Encefálica/fisiopatología , Hemorragia Cerebral/mortalidad , Hemorragia Cerebral/fisiopatología , Clima , Etnicidad , Humanos , Persona de Mediana Edad , Evaluación de Resultado en la Atención de Salud , Pronóstico , Recurrencia , Estudios Retrospectivos , Factores de Riesgo , Estaciones del Año , Prevención Secundaria , Accidente Cerebrovascular/mortalidad , Accidente Cerebrovascular/fisiopatología , Adulto Joven
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