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Fibromyalgia in Behçet's disease: a narrative review.


Fibromyalgia is characterised by chronic widespread pain and tenderness. It has often been reported to occur concomitantly with chronic rheumatological conditions. Behçet's disease is a chronic relapsing, multisystem, autoinflammatory disease. There is only limited understanding of a potential relationship between fibromyalgia and Behçet's disease.Given the potential detrimental influence of pain on the outcome of chronic disease, the aim of this narrative review is to gain an understanding of the incidence and presentation of fibromyalgia in Behçet's disease.Electronic databases Scopus, Medline, PubMed and UpToDate were searched.A total of 269 studies were identified, and limitations and exclusion/inclusion criteria were applied to ensure accurate and comparable selection of studies; four studies were selected. All cases were assessed for the presence of fibromyalgia according to the 1990 or 2010 diagnostic criteria of the American College of Rheumatology, with Behçet's disease diagnosed according to the International Study Group (ISG) for Behçet's disease criteria. A higher prevalence of fibromyalgia (5.7-37.1%) was reported in Behçet's disease compared to that of the general population (2.9-4.7%).While an increased prevalence of fibromyalgia was found in patients with Behçet's disease, this needs to be considered within the context of limited available evidence. The potential impact of these conditions on the disease activity of each other is not clear and may require a prospective study.Fibromyalgia appears to be more prevalent in those with Behçet's disease than would be expected in the overall population. Significance: This review provides some evidence that fibromyalgia is more prevalent in those with Behçet's disease. To ensure appropriate patient treatment choices, it is important that both conditions are diagnosed where they co-exist.

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