A comparison of conventional rapid methods in diagnosis of superficial and cutaneous mycoses based on KOH, Chicago sky blue 6B and calcofluor white stains

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Afshar Parvaneh; Vahedi Lale; ROUHANIZADEH HAMED

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Journal: Iranian Journal of Microbiology Year:2018 | Volume:10 | Issue:6 Page(s): 433-440

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Title

A comparison of conventional rapid methods in diagnosis of superficial and cutaneous mycoses based on KOH, Chicago sky blue 6B and calcofluor white stains

Author(s)

Afshar Parvaneh | Vahedi Lale | ROUHANIZADEH HAMED | Issue Writer Certificate

Keywords

Rapid diagnosis

Dermatomycosis

Potassium hydroxide

Chicago sky blue 6B

Calcofluor white

Abstract

Background and Objectives: Rapid confirmation of dermatomycoses is desirable, as it allows the clinicians to initiate appropriate therapy immediately. In this study, the utility of a novel contrast stain, Chicago sky blue stain, was compared with Potassium hydroxide mount and Calcofluor white stain to determine the causative fungal elements in the rapid detection method. Materials and Methods: In this survey, 189 samples of suspected Dermatomycosis infections were assessed in 3 incubation times of 30 minutes, 2 hours, and > 6 hours. Results: Positive cases were shown in Chicago sky blue 6B (55%), Calcofluor white (53. 4%), and Potassium hydroxide (36%), with 30-minute incubation. Positive results increased in other incubation times. Sensitivity, specificity, PPV, NPV and accuracy of Chicago sky blue 6B were 97%, 100%, 100%, 96% and 98% and, for Potassium hydroxide, they were 66%, 98%, 97%, 98%, 80% versus CFW, respectively. Conclusion: This study provides evidence that the Chicago sky blue 6B stain is a simple, fast and cost-effective method.

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APA: Copy

Afshar, Parvaneh, Vahedi, Lale, & ROUHANIZADEH, HAMED. (2018). A comparison of conventional rapid methods in diagnosis of superficial and cutaneous mycoses based on KOH, Chicago sky blue 6B and calcofluor white stains. IRANIAN JOURNAL OF MICROBIOLOGY, 10(6), 433-440. SID. https://sid.ir/paper/747975/en

Vancouver: Copy

Afshar Parvaneh, Vahedi Lale, ROUHANIZADEH HAMED. A comparison of conventional rapid methods in diagnosis of superficial and cutaneous mycoses based on KOH, Chicago sky blue 6B and calcofluor white stains. IRANIAN JOURNAL OF MICROBIOLOGY[Internet]. 2018;10(6):433-440. Available from: https://sid.ir/paper/747975/en

IEEE: Copy

Parvaneh Afshar, Lale Vahedi, and HAMED ROUHANIZADEH, “A comparison of conventional rapid methods in diagnosis of superficial and cutaneous mycoses based on KOH, Chicago sky blue 6B and calcofluor white stains,” IRANIAN JOURNAL OF MICROBIOLOGY, vol. 10, no. 6, pp. 433–440, 2018, [Online]. Available: https://sid.ir/paper/747975/en

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