Dempster J H, Browning G G
Department of Otolaryngology, Royal Infirmary, Glasgow, UK.
Clin Otolaryngol Allied Sci. 1989 Oct;14(5):411-4. doi: 10.1111/j.1365-2273.1989.tb00395.x.
Recent investigations have demonstrated an association between sniff-induced negative middle ear pressure and otitis media with effusion. This is taken as evidence of Eustachian tube malfunction. Adenoidectomy is frequently performed as part of the surgical management for otitis media with effusion, but whether this affects Eustachian tube function is uncertain. The aim of this study was to investigate the hypothesis that if adenoidectomy improved Eustachian tube function, children who had undergone adenoidectomy would show less tendency to generate a high negative intratympanic pressure by sniffing. Eustachian tube function was studied actively in 40 children with otitis media with effusion. Twenty children, selected at random, underwent adenoidectomy and all 40 had a unilateral grommet inserted. Eighty-five percent of the children could create a negative middle ear pressure by sniffing, but there was no difference in the number of 'sniff + ve' children between the adenoidectomy and control groups (P greater than 0.5), or in the magnitude of the negative pressure induced. It is concluded that a high percentage of children with otitis media with effusion are capable of inducing a negative middle ear pressure by sniffing, but this parameter of Eustachian tube function is not affected by adenoidectomy.
近期研究表明，擤鼻诱发的中耳负压与分泌性中耳炎之间存在关联。这被视为咽鼓管功能障碍的证据。腺样体切除术常作为分泌性中耳炎手术治疗的一部分，但它是否会影响咽鼓管功能尚不确定。本研究的目的是探讨以下假设：如果腺样体切除术能改善咽鼓管功能，那么接受腺样体切除术的儿童通过擤鼻产生高鼓室内负压的倾向会降低。对40例分泌性中耳炎患儿的咽鼓管功能进行了主动研究。随机选择20例患儿接受腺样体切除术，所有40例患儿均单侧置入通气管。85%的患儿可通过擤鼻产生中耳负压，但腺样体切除组与对照组之间“擤鼻阳性”患儿的数量（P大于0.5）或诱发的负压大小并无差异。得出的结论是，高比例的分泌性中耳炎患儿能够通过擤鼻诱发中耳负压，但咽鼓管功能的这一参数不受腺样体切除术的影响。
