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  • Title: Reperfusion Injury after ischemic Stroke Study (RISKS): single-centre (Florence, Italy), prospective observational protocol study.
    Author: Piccardi B, Arba F, Nesi M, Palumbo V, Nencini P, Giusti B, Sereni A, Gadda D, Moretti M, Fainardi E, Mangiafico S, Pracucci G, Nannoni S, Galmozzi F, Fanelli A, Pezzati P, Vanni S, Grifoni S, Sarti C, Lamassa M, Poggesi A, Pescini F, Pantoni L, Gori AM, Inzitari D.
    Journal: BMJ Open; 2018 May 24; 8(5):e021183. PubMed ID: 29794101.
    Abstract:
    INTRODUCTION: Treatments aiming at reperfusion of the acutely ischaemic brain tissue may result futile or even detrimental because of the so-called reperfusion injury. The processes contributing to reperfusion injury involve a number of factors, ranging from blood-brain barrier (BBB) disruption to circulating biomarkers. Our aim is to evaluate the relative effect of imaging and circulating biomarkers in relation to reperfusion injury. METHODS AND ANALYSIS: Observational hospital-based study that will include 140 patients who had ischaemic stroke, treated with systemic thrombolysis, endovascular treatment or both. BBB disruption will be assessed with CT perfusion (CTP) before treatment, and levels of a large panel of biomarkers will be measured before intervention and after 24 hours. Relevant outcomes will include: (1) reperfusion injury, defined as radiologically relevant haemorrhagic transformation at 24 hours and (2) clinical status 3 months after the index stroke. We will investigate the separate and combined effect of pretreatment BBB disruption and circulating biomarkers on reperfusion injury and clinical status at 3 months. Study protocol is registered at http://www.clinicaltrials.gov (ClinicalTrials.gov ID: NCT03041753). ETHICS AND DISSEMINATION: The study protocol has been approved by ethics committee of the Azienda Ospedaliero Universitaria Careggi (Università degli Studi di Firenze). Informed consent is obtained by each patient at time of enrolment or deferred when the participant lacks the capacity to provide consent during the acute phase. Researchers interested in testing hypotheses with the data are encouraged to contact the corresponding author. Results from the study will be disseminated at national and international conferences and in medical thesis. TRIAL REGISTRATION NUMBER: NCT03041753.
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