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Chinese Journal of Antituberculosis ›› 2012, Vol. 34 ›› Issue (6): 369-373.

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Evaluation of the galactomannan assays for the diagnosis of invasive pulmonary aspergillosis in the patients with respiratory disease

GE Wei, LIU Zhi-min, JIANG Cai-hua, HU Hua, WANG Hai-ying   

  1. Katharine Hus International Research Center of Human Infection Diseases, Shan Dong Chest Hospital, Jinan 250013, China
  • Received:2011-12-28 Online:2012-06-10 Published:2012-06-13
  • Contact: WANG Hai-ying E-mail:why@xkyy.org

Abstract: Objective  To assess the diagnostic value of detecting aspergillus galatomannan (GM) antigen in the patients with invasive pulmonary aspergillosis (IPA).  Methods The asepergillus GM antigen in the sera from 135 patients was detected by enzyme-linked immunosorbent assay (ELISA). The receiver operating characteristic curve (ROC curve) was generated, and the area under the curve was revealed. The sensitivity and the specificity of GM assay were evaluated and the best cut-off value was chosen.  Results GM level in the sera from 24 IPA patients (1.37±1.21)was significantly higher than 63 non-IPA patients(0.49±0.18)(F=31.10,P<0.05). The area under the curve was 0.746 (95% CI=0.621-0.872). When the cut-off value was set at 0.63, the sensitivity and the specificity of GM assay were 66.7% and 73.0% respectively.  Conclusion GM assay showed the higher sensitivity and specificity. It is useful for the early diagnosis of IPA.

Key words: Invasive pulmonary aspergillosis, Respiratory tract diseases, Mannans, Enzyme-linked imunosorbent assay