It should be differentiated among endolymphatic hydrops , perilymph fistula , mumps deafness , and otitis media with effusion 结论：小儿的突发性耳聋其预后较成为差。
2.
Especially in hearing - handicapped children , endolymphatic hydrops plays a major causative role in acute hearing loss 本症须与内淋巴水肿、外淋巴瘘、腮腺炎耳聋、及积液性中耳炎等病症作?别诊断。
3.
Among them , 10 patients had sudden deafness , and the rest included endolymphatic hydrops in 5 ; perilymph fistula in 2 ; mumps deafness in 2 and otitis media with effusion in 2 结果： 10名病童属突发性耳聋，约占同时期186名突发性耳聋病人的5 % 。
4.
5 % are higher than the superior edge of endolymphatic sac . 3 . by retrolabyrinthine approach , rectangle incision of duramater got 116 . 80 mm2 surgery scope 颈静脉球顶高于后半规管下缘者占22 . 5 ；高于内淋巴囊上缘者占5 ；高于面神经锥段者占12 . 5 。
