Some studies have shown that topical application of epidermal growth factor (EGF) accelerates healing in traumatic tympanic membrane perforations (TMPs), however, the optimal dose and starting time of application have not been established. To determine the optimal dose and starting time of application of EGF for the regeneration of TMPs. Patients with traumatic TMPs were first randomly assigned to low-dose EGF, high-dose EGF, and spontaneous healing groups. Then, the same patients were retrospectively analyzed at 6 months based on the starting time of treatment. The closure times, closure rates, and hearing gain were compared among the groups at 6 months. The mean closure time was 10.20 ± 5.13 days in the low-dosage EGF group, 14.39 ± 6.20 days in the high-dosage EGF group, and 33.17 ± 16.37 days in the spontaneous healing group; the difference was significant ( < .001). Daily application of EGF shortened the closure time of traumatic TMPs compared with those that healed spontaneously. However, high-dose EGF instead prolonged the closure time compared to low-dose EGF.
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| http://dx.doi.org/10.1080/00016489.2019.1667533 | DOI Listing |
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