ABSTRACT
Objective To explore the clinical features of antineutrophil cytoplasmic antibodies-associated vasculitis com-bined with pulmonary fibrosis and the relationship of laboratory results.Methods Totally,33 patients with antineutrophil cyto-plasmic antibodies-associated vasculitis were divided into pulmonary fibrosis group(group A)and non-pulmonary fibrosis group (group B).Fourteen patients with connective tissue diseases-related pulmonary fibrosis served as disease control group,and 12 healthy people as normal control group.The levels of ANCA,plasma creatinine,high-sensitivity C-reactive protein,fibrinogen and D-dimer were detected.Results The creatinine level was significantly higher in group B than in disease control group and normal control group.The creatinine level was higher in group A than in disease control group and normal control group,with-out significant differences.The levels of FIB,D-D,and hsCRP were significantly higher in the group A,group B and disease con-trol group(all P< 0.05).In the group A,MPO expression was positively associated with FIB concentration(r= 0.64,P<0.05).Conclusion In pulmonary fibrosis disease,early detection of ANCA has clinical value in the diagnosis of AASV.And the higher concentration of M PO may hint thrombus formation.