Clinical spectrum, predictive biomarkers, and prognostic implications of peripheral neuropathies in primary Sjögren’s syndrome: a retrospective cohort study
摘要
Primary Sjögren’s syndrome-associated peripheral neuropathy (pSS-PN) represents a clinically heterogeneous complication linked to significant morbidity. This study aims to characterize its prevalence, clinical phenotypes, predictive factors, and prognosis.
MethodsIn this retrospective cohort study conducted at Shanghai Tongji Hospital, 553 consecutive pSS patients (2002 American–European Consensus Group criteria) were evaluated. After applying the exclusion criteria, 320 eligible patients completed the full assessment protocol and constituted the final analytical cohort. Based on the diagnostic criteria for peripheral neuropathy (PN), 59 patients were diagnosed with pSS-PN, while the remaining 261 were classified as pSS without PN (pSS-nPN).
ResultsThe prevalence of pSS-PN was 18.4% (59/320) in the final cohort. The predominant subtype was distal axonal sensory polyneuropathy (33.9%). Independent predictors included fatigue (OR 2.27, 95% CI 1.27–4.06; p = 0.005), Schirmer’s test ≤ 2 mm/5 min (OR 2.78, 95% CI 1.62–4.76; p < 0.001), elevated creatine kinase (OR 3.78, 95% CI 1.92–7.45; p < 0.001), ischemic electrocardiogram (ECG) changes (OR 2.17, 95% CI 1.29–3.64; p = 0.003), and pulmonary involvement (OR 6.46, 95% CI 3.70–11.39; p < 0.001).
ConclusionsEarly identification and subtyping of pSS-PN are crucial for accurate disease assessment and guiding treatment.