Abou-Elhamd Kamal-Eldin A, Abd-Ellatif Abd-Elmateen M, Sultan Mohammed A
Department of Ear, Nose and Throat, Sohag Faculty of Medicine, South Valley University, Sohag, Egypt.
Saudi Med J. 2006 Mar;27(3):357-60.
To evaluate the diagnostic value of multifrequency tympanometry in otitis media with effusion and adhesive otitis media.
We selected 50 patients with long standing or recurrent attacks of otitis media with effusion from the outpatient clinic of the Ears, Nose and Throat (ENT) Department, Sohag Medical School, Egypt between May 2002 and December 2002. A control group was also selected, consisting of 25 patients with normal hearing levels and with no history of ENT problems. We conducted full audiological investigations in the form of pure tone audiometry, speech audiometry and immittancemetry. Immittancemetry included low probe tone frequency and multifrequency tympanometry. Each subject in the study group had undergone myringotomy and examination under microscope to decide if the case had either otitis media with effusion or adhesive otitis media.
Resonant frequency proved to have the best performance in reflecting middle ear pathology. It was lowest in otitis media with effusion with a mean value of 428 +/- 159 Hz and it was highest in adhesive otitis media with a mean of 1336 +/- 230 Hz.
Multifrequency tympanometry has an efficacy of 100% in the diagnosis of otitis media with effusion and 70% in the diagnosis of adhesive otitis media.
评估多频鼓室导抗图在分泌性中耳炎和粘连性中耳炎中的诊断价值。
我们从埃及索哈杰医学院耳鼻喉科门诊选取了50例患有长期或复发性分泌性中耳炎的患者，时间为2002年5月至2002年12月。还选取了一个对照组，由25例听力水平正常且无耳鼻喉科问题病史的患者组成。我们以纯音听力测试、言语听力测试和声导抗测试的形式进行了全面的听力学检查。声导抗测试包括低探测音频率和声导抗测试。研究组中的每个受试者都接受了鼓膜切开术和显微镜检查，以确定该病例是患有分泌性中耳炎还是粘连性中耳炎。
共振频率在反映中耳病变方面表现最佳。在分泌性中耳炎中最低，平均值为428±159赫兹，在粘连性中耳炎中最高，平均值为1336±230赫兹。
多频鼓室导抗图对分泌性中耳炎的诊断有效率为100%，对粘连性中耳炎的诊断有效率为70%。
