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Objectives: To analyse the current evidence for the management of large vessel vasculitis (LVV) to inform the 2018 update of the EULAR recommendations. Methods: Two systematic literature reviews (SLRs) dealing with diagnosis/monitoring and treatment strategies for LVV, respectively, were performed. Medline, Embase and Cochrane databases were searched from inception to 31 December 2017. Evidence on imaging was excluded as recently published in dedicated EULAR recommendations. This paper focuses on the data relevant to giant cell arteritis (GCA). Results: We identified 287 eligible articles (122 studies focused on diagnosis/monitoring, 165 on treatment). The implementation of a fast-track approach to diagnosis significantly lowers the risk of permanent visual loss compared with historical cohorts (level of evidence, LoE 2b). Reliable diagnostic or prognostic biomarkers for GCA are still not available (LoE 3b).The SLR confirms the efficacy of prompt initiation of glucocorticoids (GC). There is no high-quality evidence on the most appropriate starting dose, route of administration, tapering and duration of GC (LoE 4). Patients with GCA are at increased risk of dose-dependent GC-related adverse events (LoE 3b). The addition of methotrexate or tocilizumab reduces relapse rates and GC requirements (LoE 1b). There is no consistent evidence that initiating antiplatelet agents at diagnosis would prevent future ischaemic events (LoE 2a). There is little evidence to guide monitoring of patients with GCA. Conclusions: Results from two SLRs identified novel evidence on the management of GCA to guide the 2018 update of the EULAR recommendations on the management of LVV.

Original publication

DOI

10.1136/rmdopen-2019-001003

Type

Journal article

Journal

Rmd open

Publication Date

2019

Volume

5

Keywords

autoimmune diseases, giant cell arteritis, systemic vasculitis, Antibodies, Monoclonal, Humanized, Antirheumatic Agents, Biomarkers, Blindness, Drug Therapy, Combination, Female, Giant Cell Arteritis, Glucocorticoids, Humans, Male, Methotrexate, Observational Studies as Topic, Outcome Assessment, Health Care, Randomized Controlled Trials as Topic, Recurrence, Risk Management, Systemic Vasculitis, Takayasu Arteritis