Musculoskeletal Matters 8

MUSCULOSKELETAL MATTERS Bulletin 8 DIAGNOSIS AND MANAGEMENT OF GOUT Gout is the most common form of inflammatory arthritis and affects around 2.5% of adults in the UK. This bulletin summarises current guidelines on the diagnosis and management of gout, along with findings from recent research with gout patients. More detailed information can be found in a new ‘gout’ section on www.healthtalk.org. Gout Diagnosis Clinical diagnosis is relatively straightforward when classic features such as sudden onset of severe joint pain, swelling, tenderness and erythema affect the first metatarsophalangeal (MTP) joint. When these features are not present, or joints other than the first MTP joint are affected, definitive diagnosis requires confirmation of the presence of monosodium urate (MSU) crystals in synovial fluid or tophi. Serum uric acid (SUA) levels should not be used to confirm or refute a suspected gout diagnosis. Previous research suggests that up to 26% of clinical diagnoses of gout are incorrect. Knowing about other people’s experiences can help patients to ask questions and make decisions about their own care. www.healthtalk.org provides information on peoples’ experiences of gout. Key findings and recommendations to improve gout diagnosis Our research shows that the limitations in using SUA levels for diagnostic purposes are generally not communicated effectively to patients. Recommendation: Communicating this information to patients will help to prevent and/or correct false beliefs. Delays to diagnosis more often occur for women and those presenting with attacks in joints other than the first MTP joint. Gout is not uncommon in women, and patients may present with gout in joints other than the first MTP joint, such as the midfoot, knee, ankle, wrist, elbow and small joints of the hands. Recommendation: If classical symptoms are reported, and the patient does not recall physical injury, then gout should be considered as a potential diagnosis. A diagnosis of gout is often surprising to patients, and can be particularly distressing for women because of perceptions that it is a male condition. Men and women may be concerned about other people’s perceptions of gout being caused by ‘rich living’. Recommendation: Increased sensitivity in communicating the diagnosis (including dispelling myths about it being a male condition) will help to reduce any negative psychological impacts. Patients often believe that their lifestyle choices have caused gout, whereas genetic factors, comorbid medical conditions and medications are also important. Patients often make extensive changes to their diets, regardless of whether these are scientifically proven and/or have been recommended by their GP. Recommendation: Diagnosis provides an opportunity to emphasise: a) the chronic nature of the condition; b) that the causes are not always lifestyle-related; and c) that the patient should return to discuss long-term treatment. These bulletins are designed to provide information for general practitioners, the primary care team, teachers, trainers and policy makers about musculoskeletal problems in practice.