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. 2017 Jan;91(1):1-6.

[The Effect of Intravenous Gamma-globulin Reagents on the Measurement Results of (1➔3)-β-D-glucan]

[Article in Japanese]
  • PMID: 30277680

[The Effect of Intravenous Gamma-globulin Reagents on the Measurement Results of (1➔3)-β-D-glucan]

[Article in Japanese]
Hiroshi Moro et al. Kansenshogaku Zasshi. .

Abstract

Serum (1→3) beta-D-glucan (BG) measurement is a useful test for systemic mycoses, and often used. On the other hand, various factors, including administration of intravenous immunoglobulins (IVIG) may cause false-positives. In the present study, we measured BG concentration of seven IVIG preparations with three lots respectively. BG levels varied with individual IVIG preparations (<3.0 - >300 pg/mL), and contamination from manufacturing processes was suspected. With serum BG concentration of clinical specimens obtained in Niigata University Medical & Dental Hospital, the difference between before and after administration of IVIG were calculated. The false-positive rate of BG due to IVIG administration was 9.8 %, and the positive predective value was reduced to 37.5%. Above all, administration of IVIG can complicate the BG test's interpretation, and caution is required.

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