Maladie de Sjögren, syndrome asthénie polyalgie sécheresse (SAPS) et fibromyalgie

The combination of dry eyes and mouth, fatigue and pain in the limbs suggests Sjögren's syndrome, a systemic autoimmune disease. The association also characterizes the sicca, asthenia, polyalgia syndrome (SAPS), which is considered to be an equivalent of fibromyalgia and is common in fibromyalgia. These 2 entities have a high prevalence unlike Sjögren's syndrome. The distinction between these pathologies is made by applying the ACR/EULAR criteria for Sjögren's syndrome which require the presence of anti-SSA or a focus score ≥ 1 on the labial salivary gland biopsy (LSGB). In the absence of anti-SSA and when the diagnostic probability is low, the salivary gland ultrasonography, which shows a high negative predictive value, could be an intermediate step before deciding on the LSGB, which is a little more aggressive. About 20% of patients with Sjogren's syndrome have concomitant fibromyalgia. These patients have a higher ESSPRI score (EULAR Sjögren's Syndrome Patient Related Index) (assessment by a VAS of pain, fatigue and dryness), while the ESSDAI score (EULAR Sjögren’ Syndrome Disease Activity Index) which measures systemic impairment, is no different from patients without fibromyalgia. In this population, unlike primary fibromyalgia, agreement between the fibromyalgia criteria is not good. The symptoms of fibromyalgia and Sjogren’ syndrome are very similar, and fibromyalgia criteria have difficulty discriminating between them.