Chest:特发性肺纤维化患者抗中性粒细胞胞浆抗体的阳性情况及临床意义

2019-06-09 xing.T 网络

由此可见,ANCA抗体阳性在北美IPF患者中并不常见,与基线疾病严重程度或无移植存活率无关;然而,相当大比例的MPO阳性IPF患者发展为临床血管炎。

据报道,7-10%的特发性肺纤维化(IPF)患者抗中性粒细胞胞浆抗体(ANCA)阳性,但其临床意义尚不清楚。近日,呼吸领域权威杂志chest上发表了一篇研究文章,该研究的目的是估计北美IPF人群中ANCA抗体的阳性情况,并评估其临床意义。

这是一项回顾性研究,研究人员对加州大学旧金山分校(发现队列)和芝加哥大学(重复队列)诊断为特发性肺纤维化(IPF)的两组独立患者进行了回顾性研究。在所有患者中测量髓过氧化物酶(MPO)和蛋白酶3(PR3)-ANCA抗体,并评估了ANCA抗体的临床特征和无移植存活率的患病率和相关性。

在发现队列和复制队列中,诊断时,总共有14/353(4.0%,95%CI为2.2-6.5)和20/392(5.1%,95%CI为3.1-7.8)的IPF患者ANCA抗体阳性。在MPO抗体阳性者中,发现队列中2/6(33%)和复制队列中3/12(25%)的患者发生血管炎。PR3阳性患者没有发生血管炎。与ANCA阴性患者相比,ANCA阳性患者更可能是女性,并且更可能在CT上存在一些磨玻璃样混浊。在745名患者的联合队列中,ANCA阳性患者与ANCA阴性患者的中位无移植存活率无显著差异(p = 0.57)。

由此可见,ANCA抗体阳性在北美IPF患者中并不常见,与基线疾病严重程度或无移植存活率无关;然而,相当大比例的MPO阳性IPF患者发展为临床血管炎。

原始出处:


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    2019-11-03 Smile2680
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