Avner Shemer1,2, Yossi Eshel1,2, Aditya K Gupta3,4, Renata Farhi5, Eckart Haneke6,7,8,9, Carlton Ralph Daniel10,11, Kelly Foley4, Emma M Quinlan4. 1. The Chaim Sheba Medical Center, Tel Hashomer, Israel. 2. Sackler School of Medicine, Tel-Aviv University, Tel Aviv, Israel. 3. Department of Dermatology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada. 4. Mediprobe Research Inc., London, Ontario, Canada. 5. Hospital Nossa Senhora da Saude, University Fundação Tecnico Educacional Souza Marques, Rio de Janeiro, Brazil. 6. Department of Dermatology, Inselspital, University of Bern, Bern, Switzerland. 7. Private Dermatology Practice Dermaticum, Freiburg, Germany. 8. Centro de Dermatología Epidermis, Instituto CUF, Porto, Portugal. 9. Department of Dermatology, Ghent University Hospital, Ghent, Belgium. 10. Department of Dermatology, University of Mississippi School of Medicine, Jackson, Mississippi, USA. 11. Department of Dermatology, School of Medicine, University of Alabama, Birmingham, Alabama, USA.
Abstract
INTRODUCTION: Onychomycosis is a chronic nail fungal infection resulting in nail damage and a decreased quality of life. Chemical avulsion of the nail with urea and bifonazole -removes fungally infected debris, increasing antifungal treatment efficacy and penetration. Previous clinical ob-servations describe patients who applied their urea and -bifonazole ointment less frequently, achieving earlier nail removal. In this study, we analyzed the relationship between duration of urea and bifonazole application and time to nail avulsion. METHODS: χ2 tests, multiple regression analysis, and ANOVA were performed to analyze the similarities between treatment regimens (daily, every 3 days, or once a week), association of regimens or patient characteristics to nail removal, and compare time to nail removal between each regimen, respectively. RESULTS: Daily application of ointment and sealing resulted in an average length of time (±SD) to nail removal of 18.7 days (±6.8 days); once every 3 days resulted in nail removal at 12.7 days (±6.2 days) and once per week at 11 days (±4.46 days) (p < 0.001). Age was the only patient factor that affected duration to nail removal. CONCLUSION: Once weekly application of ointment with sealing for a 1-week duration is associated with a decrease in time to complete chemical avulsion of the nail by approximately 1 week.
INTRODUCTION: Onychomycosis is a chronic nail fungal infection resulting in nail damage and a decreased quality of life. Chemical avulsion of the nail with urea and bifonazole -removes fungally infected debris, increasing antifungal treatment efficacy and penetration. Previous clinical ob-servations describe patients who applied their urea and -bifonazole ointment less frequently, achieving earlier nail removal. In this study, we analyzed the relationship between duration of urea and bifonazole application and time to nail avulsion. METHODS: χ2 tests, multiple regression analysis, and ANOVA were performed to analyze the similarities between treatment regimens (daily, every 3 days, or once a week), association of regimens or patient characteristics to nail removal, and compare time to nail removal between each regimen, respectively. RESULTS: Daily application of ointment and sealing resulted in an average length of time (±SD) to nail removal of 18.7 days (±6.8 days); once every 3 days resulted in nail removal at 12.7 days (±6.2 days) and once per week at 11 days (±4.46 days) (p < 0.001). Age was the only patient factor that affected duration to nail removal. CONCLUSION: Once weekly application of ointment with sealing for a 1-week duration is associated with a decrease in time to complete chemical avulsion of the nail by approximately 1 week.
Authors: C Seebacher; J Brasch; D Abeck; O Cornely; I Effendy; G Ginter-Hanselmayer; N Haake; G Hamm; U-Ch Hipler; H Hof; H C Korting; P Mayser; M Ruhnke; K-H Schlacke; H-J Tietz Journal: Mycoses Date: 2007-07 Impact factor: 4.377