药物致急性间质性肾炎的临床及病理特征

目的观察药物相关性急性间质性肾炎(DAIN)患者的临床及病理特征。方法选取2003年1月至2009年12月经我院肾活检诊断为急性间质性肾炎的患者72例。根据病程分为急性恢复组(肌酐在3个月之内即恢复至正常水平)和慢性化组(超过3个月肌酐未恢复至正常)。比较2组患者临床及病理特点。结果抗生素是DAIN最常见的因素,其次为非甾体类抗炎药。大多数患者以消化道症状为主诉。慢性化组和急性恢复组在起病时肌酐、病因及临床表现上差异无统计学意义,但慢性化组发病年龄较大(48.8岁对40.6岁,P=0.009),视黄醇结合蛋白(RBP)明显升高[(32.2±19.6)mg/L对(17.1±14.9)mg/L,P<0.01],开始就诊时间明显长于恢复组(34.7 d对14.5 d,P<0.001)。病理上小管病变未见明显差异,但慢性化组间质弥漫细胞浸润的发生率明显大于恢复组。结论抗生素是DAIN最常见病因。发病年龄越大、间质浸润细胞多,易演变为慢性化,预后相对越差。故对年龄较大的急性间质性肾炎患者应更早更积极进行干预治疗。

Clinical and pathological features of drug induced acute interstitial nephritis

Objective To investigate the clinical and pathological features of drug-induced acute interstitial nephritis(DAIN).Methods Seventy-two patients with DAIN(confirmed by biopsy from January 2003 to December 2009)were divided into two groups.Group 1:serum creatinine(Scr) level dropped to the baseline within 3 months;Group 2:renal dysfunction continued for more than 3 months.Clinical and pathological features were compared between the two groups.Results Antibiotics(61.1%) were the main cause of DAIN,followed by ...