Catastrophising pain behaviour in sarcoidosis patients

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summarySarcoidosis is a multisystemic granulomatous disorder of unknown aetiology. Although anecdotal evidence suggests that chronic pain is prevalent in sarcoidosis, this has never been systematically studied. We sought to assess the presence of chronic pain in sarcoidosis, focusing on diagnosis of the pain syndrome and pain behaviour.Twenty consecutive sarcoidosis patients of our outpatient clinic (60% males; mean age 45) were subjected to a neurological examination and completed a pain questionnaire, including the Pain Coping and Cognition List (PCCL; measuring catastrophising, pain coping, internal locus of control, and external locus of control), Rand 36 (Health-related Quality of Life (QoL)), and a pain Visual Analogue Scale (VAS).Pain diagnoses were diverse, ranging from chest pain to tension type headache, myalgia, arthralgia and polyneuropathy. PCCL-catastrophising scale revealed a high mean score 3.6 (SD 1.0). All eight domains for Health-related QoL were decreased compared with a normal population control group, in particular for physical function (39.5 vs. 92.2), physical role limitations (3.8 vs. 94.3) and emotional role limitations (38.9 vs. 93.1). Compared with a tension type headache group, all Health-related QoL subscales except emotional role limitations, mental health and pain were significantly lower in the sarcoidosis group. Chronic pain is prevalent and disabling in sarcoidosis. Sarcoidosis patients have high catastrophising scores. Pain coping and locus of control scores are relatively low.

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