Purpose: Serious oral mucositis develops during radiation therapy (RT) for head and neck cancer, but there is no effective preventive method. We have used a steroid ointment to prevent oral mucositis during RT, but the use of steroid ointment is discontinued when oral candidiasis develops. Therefore, prevention of oral candidiasis is important. The purpose of this study was to examine whether administration of a miconazole oral patch reduced the amount of Candida albicans in saliva and prevented the development of oral candidiasis during RT.

Methods: Participants were patients with head and neck cancer receiving RT ≥ 60 Gy. Patients in the intervention group received miconazole oral patches for 14 days after the appearance of grade 2 oral mucositis. The control group received oral care only. Total bacteria and C. albicans counts in the saliva were analyzed by real-time polymerase chain reaction. The incidence of oral candidiasis was compared between the groups.

Results: Total bacterial counts did not change throughout RT in either the intervention or the control group. However, C. albicans count significantly increased at 30 Gy and 60 Gy in the control group but was suppressed in the intervention group. The saliva pH did not show a significant change throughout RT in either group. The incidence of oral candidiasis in the intervention group tended to be lower than that in the control group.

Conclusion: This study suggested that prophylactic use of a miconazole oral patch was effective in suppressing the growth of C. albicans count in saliva during RT for head and neck cancer.

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Source
http://dx.doi.org/10.1007/s00520-021-06480-7DOI Listing

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