Okamoto MR, Kamoi M, Yamachika S, Tsurumoto A, Imamura T, Yamamoto K, Kadomatsu S, Saito I, Maeda N, Nakagawa Y. Efficacy of Fungiflora Y staining for the diagnosis of oral erythematous candidiasis.
Gerodontology 2012;
30:220-5. [PMID:
22582792 DOI:
10.1111/j.1741-2358.2012.00668.x]
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Abstract
OBJECTIVE
The purpose of this study was to investigate the efficacy of Fungiflora Y staining (fluorescent stain) for the diagnosis of erythematous candidiasis.
SUBJECTS AND METHODS
This study enrolled 48 patients who were diagnosed with erythematous candidiasis and who underwent fungal culture and microscopic examination of a smear specimen stained with CytoQuick (modification of the Giemsa stain) and Fungiflora Y. Fungiflora Y staining was observed using a portable fluorescent microscope (CyScope(®)). The sensitivity, specificity and positive and negative predictive values were calculated using fungal culture as the gold standard test. Accuracy was calculated, and the difference between the CytoQuick and Fungiflora Y groups was examined using contingency tables and the chi-square test.
RESULTS
The sensitivity and specificity of the CytoQuick stain was 0.51 and 0.91, respectively; the positive predictive value was 0.95, and the negative predictive value was 0.36. The sensitivity and specificity of the Fungiflora Y stain was 0.84 and 1.0, respectively; the positive predictive value was 1.00, and the negative predictive value was 0.65. The accuracy of Fungiflora Y (0.88) was superior to that of CytoQuick (0.60) (p = 0.0052).
CONCLUSIONS
Microscopic examinations of smear specimens using a combination of Fungiflora Y staining and the CyScope(®) portable fluorescent microscope was found to be useful for the diagnosis of oral erythematous candidiasis.
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