PMID- 19303802 OWN - NLM STAT- MEDLINE DCOM- 20090716 LR - 20200205 IS - 1778-7254 (Electronic) IS - 1297-319X (Linking) VI - 76 IP - 3 DP - 2009 May TI - Prevalence of subclinical amyloidosis in Tunisian patients with rheumatoid arthritis. PG - 254-9 LID - 10.1016/j.jbspin.2008.08.009 [doi] AB - INTRODUCTION: Secondary amyloidosis is a serious complication of rheumatoid arthritis (RA). Symptoms are late to occur, so that screening is in order, most notably in patients with long-standing RA. The objectives of our study were to determine the prevalence of subclinical amyloidosis in RA patients by abdominal fat aspiration biopsy (AFAB) and minor salivary gland biopsy (MSGB) and to identify factors associated with subclinical amyloidosis. METHODS: We prospectively studied 107 consecutive patients with RA (94 women and 13 men) recruited between March 2005 and January 2006. Clinical and laboratory findings, imaging study results, and treatment were recorded for each patient. AFAB and MSGB were performed routinely. Amyloid deposits were identified by polarized light microscopy after Congo red staining. RESULTS: The prevalence of subclinical amyloidosis was 21.5% by AFAB and 3.7% by MSGB. Factors associated with subclinical amyloidosis were a longer time to diagnosis (P=0.03), extraarticular manifestations (P=0.019), proteinuria >0.3 g/24 h (P=0.024), and absence of methotrexate therapy (P=0.046). Subclinical amyloidosis was not associated with age, sex, RA duration, joint deformities, DAS28 score, Health Assessment Questionnaire score, Steinbrocker radiological stage, rheumatoid factor, erythrocyte sedimentation rate, C-reactive protein, creatinine, or hemoglobin. CONCLUSION: The prevalence of subclinical amyloidosis by AFAB is high (21.5%). AFAB is more sensitive than MSGB for detecting subclinical amyloidosis. A simple screening tool such as AFAB should be used, particularly in patients with risk factors. Subclinical amyloidosis requires close monitoring to ensure the early detection and treatment of symptomatic amyloidosis. FAU - Younes, Mohamed AU - Younes M AD - Service de Rhumatologie-Hopital Universitaire Fattouma Bourguiba, avenue 1 juin, Monastir 5000, Tunisia. mohamed_youn@yahoo.fr FAU - Korbaa, Wided AU - Korbaa W FAU - Moussa, Adnene AU - Moussa A FAU - Zrour, Saoussen AU - Zrour S FAU - Bejia, Ismail AU - Bejia I FAU - Touzi, Mongi AU - Touzi M FAU - Zakhama, Abdelfatteh AU - Zakhama A FAU - Bergaoui, Naceur AU - Bergaoui N LA - eng PT - Journal Article DEP - 20090321 PL - France TA - Joint Bone Spine JT - Joint bone spine JID - 100938016 RN - 0 (Amyloid) RN - 0 (Biomarkers) SB - IM MH - Abdominal Fat/metabolism/pathology MH - Adult MH - Aged MH - Aged, 80 and over MH - Amyloid/metabolism MH - Amyloidosis/*epidemiology/pathology/physiopathology MH - Arthritis, Rheumatoid/*epidemiology/pathology/physiopathology MH - Biomarkers/metabolism MH - Biopsy, Needle MH - Comorbidity MH - Female MH - Health Status MH - Humans MH - Male MH - Middle Aged MH - Prevalence MH - Prospective Studies MH - Salivary Glands, Minor/metabolism/pathology MH - Severity of Illness Index MH - Tunisia/epidemiology MH - Young Adult EDAT- 2009/03/24 09:00 MHDA- 2009/07/17 09:00 CRDT- 2009/03/24 09:00 PHST- 2008/08/21 00:00 [accepted] PHST- 2009/03/24 09:00 [entrez] PHST- 2009/03/24 09:00 [pubmed] PHST- 2009/07/17 09:00 [medline] AID - S1297-319X(09)00011-6 [pii] AID - 10.1016/j.jbspin.2008.08.009 [doi] PST - ppublish SO - Joint Bone Spine. 2009 May;76(3):254-9. doi: 10.1016/j.jbspin.2008.08.009. Epub 2009 Mar 21.