原发性和继发性干燥综合征肺间质病变的临床分析

Interstitial lung disease in patients with Sjgren′s syndrome

目的了解原发性和继发性干燥综合征(SS)肺间质病变的发生情况、临床特点、肺功能、影像学检查及相关因素,以早期发现SS的肺部病变。方法回顾性分析我院2002年1月至2005年7月资料完整的原发性和继发性SS患者136例的临床资料,包括抗SSA抗体和抗SSB抗体,胸部X线、肺高分辨CT(HRCT)、肺功能等。结果①抗SSA抗体阳性的原发性SS(pSS)患者易出现肺间质病变,而且病变较重;②肺HRCT示继发性SS(sSS)肺间质病变程度比pSS肺间质病变程度重,可能受其病程长的影响;③pSS肺间质病变者其肺容量减少、顺应性降低较sSS肺间质病变者更多见,sSS肺间质病变者以阻塞性通气障碍为主,二者肺功能损害均以小气道及弥散功能损害为主。结论SS患者应早期做肺HRCT及肺功能检查,以早期诊断和治疗肺间质病变,尤其是抗SSA抗体阳性pSS患者。

Objective To investigate the prevalence and clinical characteristics of Sjogren＇s syndrome- interstitial lung disease （SS-ILD）. Methods 136 patients with SS were studied. Anti-SSA and AntiSSB antibodies were measured by Western blot. The inpatients had chest X ray, chest HRCT and pulmonary function examined. Results ①pSS-ILD patients with postive anti-SSA antibody were proned to have interstitial lung disease and the ILD were more severe. ②HRCT showed that sSS-ILD were more severe than that of pSS-ILD. ③Lung capacity of pSS-ILD decreased more frequently than sSS-ILD, sSS-ILD mainly had ventilatory function abnormalities. The lung function impairment of both were dominated by small airways dysfunction and decrease of TLCO. Conclusion SS patients should be examined by HRCT and lung function tests should be performed in the course of the disease to find out and treat ILD.