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ORIGINAL ARTICLE
Year : 2018  |  Volume : 38  |  Issue : 2  |  Page : 85-88

Effect of onychomycosis on pulse oximeter


1 Department of Dermatology, Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Turkey
2 Infectious Diseases and Clinical Microbiology, Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Turkey
3 Department of Dermatology, Elazığ Training and Research Hospital, Elazığ, Turkey
4 Department of Dermatology, Fırat University, Elazığ, Turkey

Correspondence Address:
Hülya Nazik
Department of Dermatology, Kahramanmaraş Sütçü İmam University, Kahramanmaraş 46100
Turkey
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ejdv.ejdv_9_18

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Objective Onychomycosis causes nail thickness and discoloration of the dorsum of the nail plate. This study was aimed to investigate the effect of discoloration and nail thickness associated with onychomycosis on pulse oximetry measurement. Materials and methods The involvement degree of onychomycosis was determined using onychomycosis severity index (OSI). Two different measurements were recorded by pulse oximetry. The first one was from the nail with onychomycosis, and the second one was from the normal nail of the same hand. Results A total of 93 onychomycosis cases were included in the study. When SpO2 values of white nail color were measured, it was statistically significant higher in the onychomycosis group than the control (P<0.001). On the contrary, in the yellow nail, SpO2 values were lower in the onychomycosis group (P<0.001). Similarly in the brown nail, SpO2 values were lower in the onychomycosis group, but there was no statistically significance (P=0.083). It was determined that there was no statistically significant difference between SpO2 values and OSI (P=0.563). Conclusion As a result, SpO2 values were affected by discoloration owing to onychomycosis. SpO2 values were found lower in patients with moderate and severe OSI, which is related to nail thickness than the control. It was concluded that the discoloration and nail thickness associated with onychomycosis were effective on pulse oximetry measurement.


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