PMID- 32907910 OWN - NLM STAT- MEDLINE DCOM- 20210929 LR - 20210929 IS - 1708-8267 (Electronic) IS - 1081-5589 (Linking) VI - 68 IP - 8 DP - 2020 Dec TI - Discriminative value of glial fibrillar acidic protein (GFAP) as a diagnostic tool in acute stroke. Individual patient data meta-analysis. PG - 1379-1385 LID - 10.1136/jim-2020-001432 [doi] AB - Glial fibrillar acidic protein (GFAP) in serum has been evaluated as a promising biomarker to differentiate between intracerebral hemorrhage (ICH) and acute ischemic stroke (AIS). We assessed its value as diagnostic and prognostic tool for ICH through a literature systematic review and individual patient data (IPD) meta-analysis.We performed a systematic search in PubMed database until November 2018 for publications that evaluated GFAP to differentiate AIS and ICH within 4.5 hours after symptoms onset. Thereafter, we invited authors of selected studies to participate in this work by providing IPD from their cohorts. We used standardized individual subject's data to evaluate the association of GFAP concentrations with stroke subtype, demographics, stroke characteristics and factors related with GFAP measurement.From 4 selected studies, we collected data of 340 patients (236 AIS and 104 ICH). Standardized GFAP blood levels were significantly elevated in ICH compared with those with AIS (median and IQR: 0.84 (0.781-1.24), 0.79 (0.74-0.81); p<0.0001). In both stroke types, GFAP concentrations correlated with baseline stroke severity (r=0.27, p<0.0001; r=0.36, p<0.001; for AIS and ICH, respectively) but no correlation was found regarding time to sampling. Limited data precluded the evaluation of GFAP levels and functional outcome.These findings demonstrate substantially different levels of GFAP in the blood of patients with ICH compared with patients with AIS soon after the event, while no association was found with outcome. In summary, GFAP could be a valuable diagnostic tool to assist in medical decision-making and to optimize management of stroke in the acute setting. CI - (c) American Federation for Medical Research 2020. No commercial re-use. See rights and permissions. Published by BMJ. FAU - Cabezas, Juan Antonio AU - Cabezas JA AUID- ORCID: 0000-0001-9035-4643 AD - Neurology, Virgen del Rocio University Hospital, Sevilla, Spain. FAU - Bustamante, Alejandro AU - Bustamante A AD - Neurovascular Research Laboratory, Vall d'Hebron Institute of Research (VHIR), Universitat Autonoma de Barcelona, Barcelona, Spain. FAU - Giannini, Nicola AU - Giannini N AD - Neurological Clinic, University of Pisa, Pisa, Italy. FAU - Pecharroman, Emilio AU - Pecharroman E AD - Neurovascular Research Laboratory, Vall d'Hebron Institute of Research (VHIR), Universitat Autonoma de Barcelona, Barcelona, Spain. FAU - Katsanos, Aristeidis H AU - Katsanos AH AD - Department of Neurology, University of Ioannina School of Medicine, Athens, Greece. FAU - Tsivgoulis, Georgios AU - Tsivgoulis G AD - Department of Neurology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece. FAU - Rozanski, Michal AU - Rozanski M AD - Department of Neurology, Center for Stroke Research Berlin (CSB), Charite-Universitatsmedizin, Berlin, Germany. FAU - Audebert, Heinrich AU - Audebert H AD - Department of Neurology, Center for Stroke Research Berlin (CSB), Charite-Universitatsmedizin, Berlin, Germany. FAU - Mondello, Stefania AU - Mondello S AD - Department of Biomedical, Dental, Morphological and Functional Imaging Sciences, University of Messina, Messina, Italy. FAU - Llombart, Victor AU - Llombart V AD - Neurovascular Research Laboratory, Vall d'Hebron Institute of Research (VHIR), Universitat Autonoma de Barcelona, Barcelona, Spain. FAU - Montaner, Joan AU - Montaner J AD - Neurology, Virgen Macarena University Hospital, Sevilla, Spain jmontaner-ibis@us.es. AD - Neurovascular Laboratory, Vall d'Hebron Hospital, Barcelona, Spain. LA - eng PT - Journal Article PT - Meta-Analysis DEP - 20200908 PL - England TA - J Investig Med JT - Journal of investigative medicine : the official publication of the American Federation for Clinical Research JID - 9501229 RN - 0 (Glial Fibrillary Acidic Protein) SB - IM MH - Aged MH - Aged, 80 and over MH - Cerebral Hemorrhage/blood/diagnosis MH - Cohort Studies MH - Diagnosis, Differential MH - Female MH - Glial Fibrillary Acidic Protein/*blood MH - Humans MH - Male MH - Middle Aged MH - Publication Bias MH - Stroke/*blood/*diagnosis MH - Treatment Outcome OTO - NOTNLM OT - biomarkers OT - stroke COIS- Competing interests: None declared. EDAT- 2020/09/11 06:00 MHDA- 2021/09/30 06:00 CRDT- 2020/09/10 05:29 PHST- 2020/08/04 00:00 [accepted] PHST- 2020/09/11 06:00 [pubmed] PHST- 2021/09/30 06:00 [medline] PHST- 2020/09/10 05:29 [entrez] AID - jim-2020-001432 [pii] AID - 10.1136/jim-2020-001432 [doi] PST - ppublish SO - J Investig Med. 2020 Dec;68(8):1379-1385. doi: 10.1136/jim-2020-001432. Epub 2020 Sep 8.