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SAT0611 Improvement of Large-Joint Ultrasonographic Synovitis is Delayed in Patients with Newly Diagnosed Rheumatoid Arthritis: Results of a 12-Month Clinical and Ultrasonographic Follow-Up Study of a Local Cohort
  1. H. Harman,
  2. I. Tekeoğlu,
  3. S. Takçı,
  4. K. Nas,
  5. A. Kamanlı
  1. Physical Medicine and Rehabilitation/Rheumatology, Sakarya University Faculty of Medicine, Sakarya, Turkey


Background Gray-scale ultrasonography (GSUS) to detect synovitis and power Doppler (PD) signals at multiple joint levels are valid disease activity markers in RA that are modified after effective therapy

Objectives We analyzed the longitudinal changes in gray-scale ultrasonography (GSUS) and power Doppler ultrasonongraphy (PDUS) parameters, and correlated them with clinical, functional, and radiologic outcomes in patients with newly diagnosed rheumatoid arthritis (RA).

Methods GSUS and PDUS examinations, 44-joint disease activity score (DAS44) calculations, measurements of erythrocyte sedimentation rate and C-reactive protein levels were performed in 68 RA patients at baseline, and after 1, 3, 6, 9, and 12 months. Metacarpophalangeal joints, wrist, elbow, knee, ankle, metatarsophalangeal joints, and wrist and ankle tendons were examined by GSUS and PDUS.

Results The laboratory and clinical findings began to decrease significantly at 1 month (P <0.05). Improvement of the US variables began at 3 months. After 6 months, all of the joint synovitis scores, except those of the knee, elbow, and ankle joints, showed a statistically significant reduction compared to baseline scores (P <0.001). DAS44 scores were lower in the very early RA group at 12 months compared to those whose symptom duration was greater than 3 months of RA (respectively, 1.53±0.34; 1.80±0.38; z = -2,501, P =0.012). The total modified Sharp scores at 12 months correlated with total PDUS synovitis scores at 12 months (r =0.354, P =0.003).

Conclusions Regression of US synovitis at large joints such as the knee, elbow, and ankle tended to be delayed compared to that at small joints. PD synovitis that is persistent despite disease-modifying anti-rheumatic drug therapy may cause radiographic bone erosions.

Disclosure of Interest None declared

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