cases of chronic tympanie membrane cyMjperforation were treated with sucking-pig epidermal growthfractor (EGFl in myringopladty- According to the clinical observation
the healing rate of TM perforation was 90.9%. the average time after myringoplasty was 9 days. The patients were not pain
oto toxic and other side effect.This result show that ECG could improve the healing of TM perforation and this method is worth spreading