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Mechanisms of Fibromyalgia Pain

Published online by Cambridge University Press:  07 November 2014

Roland Staud
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Extract

Chronic musculoskeletal pain is highly prevalent in the United States and includes inflammatory and non-inflammatory syndromes, such as low back pain (reported by 59 million Americans in the past 3 months), neck pain (reported by 30.1 million Americans in the past 3 months), clinical osteoarthritis (reported by 27 million Americans in the past 3 months), and fibromyalgia (FM). FM affects between 2% to 4% of the US population or 12 million people. Inflammatory pain conditions commonly reported by patients include rheumatoid arthritis (2.5 million) and gout (3 million), among others. This article will focus primarily on FM, which is a chronic pain condition that predominately affects women.

The current diagnostic criteria for FM include chronic widespread pain for at least 3 months and the presence of widespread mechanical tenderness. A patient with suspected FM must report pain in all four body quadrants and have at least 11 of 18 tender points for a positive diagnosis to be made. Tender points are areas of the body where pressure is applied until pain threshold is achieved. In addition to pain and tenderness, FM patients very frequently describe widespread stiffness and fatigue, disrupted or poor sleep, dyscognition, and mild soft tissue swelling. Patients often also report symptoms of anxiety and depression.

Type
Research Article
Information
CNS Spectrums , Volume 14 , Issue S16: Fibromyalgia Facts: Foundations for Assessment, Care, and Treatment Strategies , August 2009 , pp. 4 - 5
Copyright
Copyright © Cambridge University Press 2009

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