Keywords guinea pig;round window;perilymph;dexamethasone phosphate;hyaluronic acid;gelfoam;HPLC;Deafness;Sudden;Dexamethasone;Round Window;

• 地塞米松;外淋巴液;透明质酸;明胶海绵;豚鼠;高效液相色谱法;突聋;圆窗膜;圆窗;