We aim to optimize the radiological selection and the transfer model in patients with a 6-24h stroke for a fairer and broader access to a reperfusion treatment. The specific objectives are: 1. To confirm that the selection of patients for reperfusion therapies in the late window is safe by applying the same clinical and imaging criteria recommended by clinical guidelines for the early window treatment selection. 2. To evaluate the performance of non-contrast CT by applying immediate post-processing software for the selection of patients for reperfusion treatment in the late window. 3. To analyze the prehospital and arrival variables at the primary stroke center to generate decision trees that optimize the transfer decision in patients with activation of the stroke code in \>6h from the onset of symptoms. METHODOLOGY: Study based on a mandatory, prospective, multicenter registry (CICAT registry) consisting of two phases 1. retrospective analysis with a detailed evaluation of the images of the included patients and generation of "machine learning" models that accurately predict the probability of receiving reperfusion treatment in the late window. 2. validation of the models in a prospective study. Clinical, radiological and transport variables will be studied. Response variables: rate of patients receiving reperfusion treatment in the late window, functional prognosis at 90 days, hemorrhagic transformation, and mortality.
Study Type
OBSERVATIONAL
Enrollment
2,173
MR perfusion or multiparametric CT including NCCT, CTA and CTP
NCCT+CTA
Germans Trias i Pujol Hospital
Badalona, Barcelona, Spain
mRS at 90 days
Percentage of patients with functional independence, defined as mRS \< or =2 on day 90 as assessed centrally by blinded evaluators of the Catalan Stroke Master Plan.
Time frame: 90 days after stroke
Rate of patients treated with mechanical thrombectomy
Time frame: less than 24 hours after the diagnostic test
Mortality at discharge and at day 90
Time frame: 90 days after stroke
Symptomatic intracerebral hemorrhage, defined as PH2 or SAH on imaging test at 24-72 hours associated with a worsening in NIHSS ≥ 4 points
Time frame: From 24 to 72 hours after stroke
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