Intervention Group:Irrigate the whole middle ear with 5% Povidone-iodine solution and keep in the middle ear for 30 seconds, soak the gelatin sponge with 5% Povidone-iodine solution when tamping midd
Sponsors
EENT Hospital of Fudan University
Conditions
Postoperative hearing level of tympanoplastySurgical site infection after tympanoplasty