Elderly-onset primary Sjögren's syndrome focused on clinical and salivary gland ultrasonographic features - 05/06/21
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Highlights |
• | Clinical, laboratory, and SGUS characteristics of EopSS were assessed. |
• | About 20% patients had EopSS defined as onset age of >65 years. |
• | EopSS patients presented a higher frequency of ILD and lower frequency of arthritis. |
• | EopSS patients had low serologic and biological activity. |
• | SGUS evaluation showed less parenchymal changes but more atrophic changes of SGs in EopSS. |
Abstract |
Objective |
To assess the clinical, laboratory, and salivary gland ultrasound (SGUS) characteristics of elderly-onset of primary Sjögren's syndrome (EopSS).
Methods |
We included pSS patient from two referral hospitals over a 4-year period. The SGUS scores (0–48) and SG volumes were assessed. Clinical, laboratory, and SGUS data were compared according to age at onset: EopSS (≥65 years), adult-onset (AopSS) (≥40 and <65 years), and young-onset (YopSS) (<40 years).
Results |
This cross-sectional study included a total of 221 patients, 43 (19.5%) of which had EopSS. Subjective sicca symptoms, results of the Schirmer's test, and unstimulated salivary flow rate revealed no significant differences between the groups. EopSS patients presented a significantly higher frequency of interstitial lung disease (ILD) (EopSS: 51.2% vs. AopSS: 13.5% vs. YopSS: 8.7%, P<0.001) and lower frequency of arthritis (7% vs. 22.6% vs. 39.1%, P<0.01). They also had significantly lower positivity of anti-Ro/SSA (51.2%) and anti-La/SSB (7.0%) and lower levels of rheumatoid factor, C4, and IgG. The EopSS group had significantly lower SGUS positivity (defined as total scores ≥14) (44.2% vs. 64.5% vs. 78.3%, P<0.05), lower SGUS scores, and smaller submandibular gland volume.
Conclusion |
We report a specific phenotype of EopSS, characterised by high prevalence of ILD, less involvement of the peripheral joint, and low biological activity. SGUS evaluation showed less parenchymal abnormalities but more atrophic changes in major SGs in EopSS patients. Considering the low positivity of anti-Ro/SSA and SGUS in EopSS, SG biopsy remains the only way to confirm the diagnosis of pSS, especially in elderly patients.
El texto completo de este artículo está disponible en PDF.Keywords : Sjögren's syndrome, Elderly onset, Salivary glands, Ultrasonography
Esquema
Vol 88 - N° 4
Artículo 105132- juillet 2021 Regresar al númeroBienvenido a EM-consulte, la referencia de los profesionales de la salud.
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