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Iron deficiency for prognosis in acute coronary syndrome - A systematic review and meta-analysis

University of East Anglia (UEA), Norwich Research Park, Norwich NR4 7TJ, United Kingdom; Norfolk and Norwich University Hospital, Colney Lane, Norwich NR4 7UY, United Kingdom. Electronic address: J.Reinhold@uea.ac.uk. University of Cambridge, The Old Schools, Trinity Ln, Cambridge CB2 1TN, United Kingdom; Royal Papworth Hospital, Papworth Road, Cambridge Biomedical Campus, Cambridge CB2 0AY, United Kingdom. University of East Anglia (UEA), Norwich Research Park, Norwich NR4 7TJ, United Kingdom; Norfolk and Norwich University Hospital, Colney Lane, Norwich NR4 7UY, United Kingdom.

International journal of cardiology. 2020
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Abstract
BACKGROUND Iron deficiency (ID) is an important predictor of adverse outcomes in patients with heart failure, however it is unclear whether ID also affects prognosis in patients with acute coronary syndrome (ACS). The aim of this systematic review and meta-analysis was to assess the prognostic value of iron deficiency in patients with ACS. METHODS We searched PubMed, Web of Science, and the Cochrane library and included cohort studies of patients with ACS that were stratified by ID status. There were no restrictions on definition of ACS or ID. Studies were systematically appraised and data extracted by two independent reviewers. Meta-analysis was performed where two or more studies reported on the same pre-determined outcome measure. RESULTS Seven studies with 2821 participants were identified, reporting a high prevalence of ID in the ACS population. Three studies reported worse long-term outcomes in the ID population, whereas short-term outcomes were heterogeneous across studies. CONCLUSIONS Patients with ID presenting with ACS may have a worse long-term prognosis but more studies are required for confirmation. A role for ID in prognosis of patients with ACS and as a potentially treatable condition may have implication for the current management of this patient population.
Study details
Study Design : Systematic Review
Language : eng
Additional Material : Comment in: ‘International Journal of Cardiology’ (2021) PMID: 33992701, DOI: <a href="http://dx.doi.org/10.1016/j.ijcard.2021.05.022">http://dx.doi.org/10.1016/j.ijcard.2021.05.022</a>
Credits : Bibliographic data from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine