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A systematic review of oral fungal infections in patients receiving cancer therapy
Authors:Rajesh V. Lalla  Marie C. Latortue  Catherine H. Hong  Anura Ariyawardana  Sandra D’Amato-Palumbo  Dena J. Fischer  Andrew Martof  Ourania Nicolatou-Galitis  Lauren L. Patton  Linda S. Elting  Fred K. L. Spijkervet  Michael T. Brennan
Affiliation:1. Section of Oral Medicine, MC1605, University of Connecticut Health Center, 263 Farmington Ave, Farmington, CT, 06030, USA
2. Department of Oral Medicine, Carolinas Medical Center, P.O. Box?32861, Charlotte, NC, 28232, USA
3. Department of Oral Medicine and Periodontology, Faculty of Dental Sciences, University of Peradeniya, Peradeniya, 20400, Sri Lanka
4. Dental Hygiene Program, College of Arts and Sciences, University of New Haven, 300 Boston Post Road, West Haven, CT, 06516, USA
5. Department of Oral Medicine and Diagnostic Sciences, University of Illinois at Chicago, 801 S. Paulina Street, Chicago, IL, 60612, USA
6. Department of Dentistry, University of Virginia Health System, Box?800740, Charlottesville, VA, 22908, USA
7. Clinic of Hospital Dentistry, University of Athens, Dental School, 2 Thivon St, Athens, 115 27, Greece
8. Department of Dental Ecology, University of North Carolina School of Dentistry, CB 7450, Chapel Hill, NC, 27599, USA
9. Department of Biostatistics, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
10. Department of Oral & Maxillofacial Surgery, University Hospital Groningen, Groningen, The Netherlands
Abstract:

Purpose

The aims of this systematic review were to determine, in patients receiving cancer therapy, the prevalence of clinical oral fungal infection and fungal colonization, to determine the impact on quality of life and cost of care, and to review current management strategies for oral fungal infections.

Methods

Thirty-nine articles that met the inclusion/exclusion criteria were independently reviewed by two calibrated reviewers, each using a standard form. Information was extracted on a number of variables, including study design, study population, sample size, interventions, blinding, outcome measures, methods, results, and conclusions for each article. Areas of discrepancy between the two reviews were resolved by consensus. Studies were weighted as to the quality of the study design, and recommendations were based on the relative strength of each paper. Statistical analyses were performed to determine the weighted prevalence of clinical oral fungal infection and fungal colonization.

Results

For all cancer treatments, the weighted prevalence of clinical oral fungal infection was found to be 7.5% pre-treatment, 39.1% during treatment, and 32.6% after the end of cancer therapy. Head and neck radiotherapy and chemotherapy were each independently associated with a significantly increased risk for oral fungal infection. For all cancer treatments, the prevalence of oral colonization with fungal organisms was 48.2% before treatment, 72.2% during treatment, and 70.1% after treatment. The prophylactic use of fluconazole during cancer therapy resulted in a prevalence of clinical fungal infection of 1.9%. No information specific to oral fungal infections was found on quality of life or cost of care.

Conclusions

There is an increased risk of clinically significant oral fungal infection during cancer therapy. Systemic antifungals are effective in the prevention of clinical oral fungal infection in patients receiving cancer therapy. Currently available topical antifungal agents are less efficacious, suggesting a need for better topical agents.
Keywords:
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