隐性类风湿因子在类风湿关节炎早期诊断中的应用
2020-10-21张辰蔚董霞贾浩楠彭静苗晶刘鹏
张辰蔚 董霞 贾浩楠 彭静 苗晶 刘鹏

【摘 要】目的:探讨隐性类风湿因子(HRF)的检测在类风湿关节炎(RA)早期诊断中的意义。方法:选取本院患者80例,其中高度疑似RA患者30例,低类风湿因子(RF)滴度RA患者30例,非RA患者20例。采用比浊法检测RF,ELISA法检测HRF,化学发光法检测抗CCP抗体,间接免疫荧光法检测AKA。结果:高度疑似RA组三种HRA阳性率分别为HRF-IgA(63%)、HRF-IgG(13.3%)、HRF-IgM(96.7%)均高于低滴度RA组和非RA组(P<0.05,P<0.01),低滴度组HRF阳性率与CCP、AKA无明显差异(P>0.05),低滴度RA患者中HRF与疾病活动度无明显相关。结论:隐性类风湿因子检测对早期类风湿关节炎诊断有较高价值,帮助血清阴性RA患者及早诊断和治疗。
【关键词】类风湿关节炎;隐性类风湿因子;诊断
【中图分类号】R593.22【文献识别码】B【文章编号】1002-8714(2020)05-0090-01
【Abstract】Objective To explore the significance of detection of hidden rheumatoid factor (HRF) in the early diagnosis of rheumatoid arthritis (RA). Methods 80 patients were selected, including 30 highly suspected RA patients, 30 low RF titer RA patients and 20 non RA patients. RF was detected by turbidimetry, HRF by ELISA, anti CCP antibody by chemiluminescence and aka by indirect immunofluorescence. Results the positive rates of HRF IgA (63%), HRF IgG (13.3%) and HRF IgM (96.7%) in the highly suspected RA group were higher than those in the low titer RA group and the non RA group (P<0.05,P<0.01). The positive rates of HRF in the low titer RA group were not significantly different from those of CCP and aka (P > 0.05). Conclusion the detection of recessive rheumatoid factor is of high value in the diagnosis of early rheumatoid arthritis, and it can help the patients with serum negative RA to diagnose and treat as early as possible.
【Key words】Rheumatoid arthritis,Hidden rheumatoid factor,Diagnosis
类风湿关节炎(Rheumatoid arthritis,RA)是一种以侵蚀性关节炎为主要变现的全身性自身免疫病。该病好发于双手、腕、膝、距小腿和足关节等小关节,呈对称性,持续性的多关节炎。此外还可出现,发热、贫血、皮下结节及淋巴结肿大等关节外表现。未经系统治疗迁延不愈的RA患者,可出现关节软骨及骨破坏,最终导致关节畸形和功能丧失,而早期诊断、应用抗类风湿病变药物治疗则有助于延缓病情进展,从而改善患者生存质量[1]。因此,国内外对于类风湿关节炎早期实验室诊断十分重视,而既往血清学指标往往滞后,经血清学指标确诊时,患者已出现病情进展,错过最佳治疗时机[2]。
类风湿因子(Rheumatoid factor,RF)是诊断RA的重要血清学标记物,其敏感度较高,但特异性比较差,主要类型为IgM-RF,在正常人及其他自身免疫系统疾病中均可呈现阳性,单纯利用类风湿因子诊断容易造成误诊、漏诊。……
