正常人咽鼓管功能的综合法检测

目的：探讨综合法对正常人咽鼓管功能检测的实用性。方法：对３０例（６０耳）正常人分别检测静态时,捏鼻吞咽和捏鼻鼓气后的鼓室导抗图,其峰压点分别为Ｐ１,Ｐ２和Ｐ３,以Ｐ１－Ｐ２〉１０ｄａＰａ和Ｐｍａｘ－Ｐｍｉｎ〉１５ｄａＰａ判断为咽鼓管功能正常。     

腭裂对中耳传音和咽鼓管功能的影响

目的：了解腭裂对中耳传音和咽鼓管功能的影响及其影响的程度。方法：对４１例腭裂患者进行耳科学常规检查、咽鼓管咽口形态观察、声导抗测试,并与听力正常人进行对照。结果：腭裂患者中鼓膜病变率达８９．０％,咽鼓管咽口呈裂隙状形态达５９．５％,鼓室压图异常达８３．１％,镫骨肌反射消失率达８４．４％,与正常人对照,有极显著性差异。腭裂患者并发分泌性中耳炎的比率为７４．０％。结论：由于腭裂患者存在鼻另碚的易感染性     

咽鼓管-鼓室气流动态图法检测健康人咽鼓管功能的应用探讨

目的：探讨咽鼓管一鼓室气流动态图法（TTAG法）对健康人群咽鼓管功能进行不同亚群分类的临床实用性。方法：对66例（132耳）健康人使用TTAG法采用Valsalva动作检测咽鼓管被动通气功能，并对结果和图形进行分析。结果：TTAG法检测阳性率为93．3％（124／132）。根据曲线特点和吞咽次数将阳性耳分为Ⅰ型77耳，Ⅱ型47耳，两型ET开放时鼻咽腔压力均值比较差异无统计学意义（P〉0．05），外耳道压力均值差异有统计学意义（P〈0．01）。结论：TTAG法对判定健康人群中咽鼓管功能不同亚群状态有一定临床应用价值。     

声导抗测试与咽鼓管开放类型的判别

分析了近１０年来作者采用的声导测试法诊断咽鼓管开放症的４８例６３耳临床资料，发现咽鼓管开放有主观症状而无客观体，有主观症状又有客观体症，无主观症状而有客观体征三种情况。认为咽鼓管在生理性开放和病理性异常开放之分。     

鼓膜穿孔患者鼓室成形术前咽鼓管功能评价

咽鼓管功能与中耳的生理功能、病理状态及中耳疾病的疗效密切相关,尤其对鼓室成形术的预后起重要作用,我科用声导抗仪对二类鼓膜穿孔患者进行检测以判断其咽鼓管功能状态,报告如下：１ 资料和方法１．１ 临床资料 ３４例鼓室成型术患者中,男２０例,女１４例。慢性中耳炎所致鼓膜穿孔组：病程６个月以上者,１９例１９耳,平均年龄３５岁（１５～６６岁）,外伤性鼓膜穿孔组：病程２个月以上者１５例１５耳,平均年龄３２岁（１４～６１岁）。１．２ 检测方法 自动 Ｔｏｙｎｂｅｅ法,将 ＡＺ２６型声导抗仪之探头置于患侧外耳道内并分…     

分泌性中耳炎C型鼓室导抗图咽鼓管功能的检测

目的：探讨分泌性中耳炎（ＳＯＭ）、鼓室导抗图为Ｃ型患者的咽鼓管功能。方法：检测捏鼻吞咽法和捏鼻鼓气法后的鼓室导抗图,峰压点的移动进行量化处理,评价３０例ＳＯＭ（４２耳）的咽鼓管功能,并与正常对照组相比较。结果：咽鼓管功能障碍者５２．３８％,与正常对照组相比有显著性差异（Ｐ〈０．０５）。结论：咽鼓管功能障碍是ＳＯＭ的病因之一,但并非唯一因素。     

鼓室成形术后的咽鼓管功能检测及意义

目的探讨咽鼓管功能对慢性化脓性中耳炎鼓室成形术后疗效的影响。方法用咽鼓管鼓室-气流动态图(tube-tympanoaerodynamicgraphy,TTAG)法及音响法对53耳鼓室成形术后的咽鼓管功能进行检测,并分析鼓室成形术后咽鼓管功能正常耳与异常耳的鼓膜生长及听力变化情况;并用鼻窦镜观察咽鼓管咽口,分析咽鼓管咽口与咽鼓管功能的关系。结果53耳鼓室成形术后咽鼓管功能正常37耳,其中29耳鼓膜生长良好;咽鼓管功能异常16耳中,有4耳鼓膜生长良好,比较咽鼓管功能正常耳与异常耳鼓膜生长良好耳数,两者有显著性差异(P<0.05);53耳术后有9耳咽鼓管咽口充血肿胀,其中2耳咽鼓管功能正常,7耳咽鼓管功能不良,提示术后咽鼓管功能障碍与咽鼓管咽口病变有关。结论慢性化脓性中耳炎鼓室成形术后咽鼓管功能与疗效关系密切,术后咽鼓管功能障碍可能是导致手术失败的原因之一。     

中耳变压疗法在咽鼓管功能障碍患者中的应用

咽鼓管最重要的功能就是保持鼓室内外两侧压力的平衡。咽鼓管功能失调是引起中耳炎症尤其是分泌性中耳炎的重要原因之一。２０００年３月～５月对３０例（３５耳）咽鼓管机能障碍患者应用了中耳变压疗法,取得较好疗效,报告如下。１ 材料与方法１．１ 临床资料 根据临床症状体征及声导抗测试临床诊断为咽鼓管功能障碍患者３０例３５耳,其中男１６例,女１４例;年龄２４～７９岁,平均４５岁;病程５天～２年。鼓室导抗图与临床表现的关系见附表。 按临床症状的程度不同分为以下三度：（１）轻度：有轻度的耳闷塞感,鼓膜轻度内陷,呈淡红…     

足月正常新生儿多频探测音鼓室声导抗正常值测定

目的：探讨正常新生儿多频探测音鼓室声导抗图的图型、声导纳值、声纳值和声导值的正常范围。方法：使用GSI-33中耳分析仪,对足月顺产并通过瞬态诱发性耳声发射和畸变产物耳声发射筛查的新生儿55例（110耳）进行226、6781、000 Hz探测音鼓室声导抗测试,对比分析各种探测音鼓室声导抗的图形,声导纳值、声纳值和声导值,并进行统计学分析。结果：226 Hz探测音鼓室声导纳图、声纳图和声导图以双峰型为主,分别占90.0%、99.1%和85.5%,少数为单峰型,无多峰型出现;678 Hz探测音鼓室声导纳图、声纳图和声导图以单峰型为主,分别占62.7%、77.3%和62.7%,双峰型分别占34.6%、20.9%和31.8%,少数出现三峰型;1 000 Hz探测音鼓室声导纳图、声纳图和声导图以单峰型为主,分别占96.4%、99.1%和97.3%,极少数为双峰型,无三峰型出现。226 Hz与678 Hz探测音测试,鼓室声导纳值与声纳值、声纳值与声导值的均差异有统计学意义（均P〈0.05）;声导纳值与声导值差异无统计学意义（P〉0.05）。1 000 Hz探测音测试,鼓室声导纳值、声纳值与声导值的两两比较均差异有统计学意义（均P〈0.05）。结论：获得正常新生儿多频探测音鼓室声导抗图的图形、声导纳值、声纳值和声导值的正常范围,结果提示,1 000 Hz探测音鼓室声导抗测试可以较好反映正常新生儿的中耳功能。     

低频和高频探测音鼓室声导抗测试在婴儿中耳功能诊断中的作用

目的评价低频和高频探测音鼓室声导抗测试在诊断婴儿中耳功能异常中的作用。方法使用GSI Tympstar中耳分析仪，对年龄5—25周的听性脑干反应（auditory brainstem response，ABR）检查正常婴儿15例（30耳）和Ⅰ波潜伏期延长提示可能存在中耳功能异常婴儿17例（20耳），进行226、678、1000Hz探测音鼓室声导抗测试的比较。结果226Hz探测音鼓室声导纳图的静态声导纳值、图形、峰压和梯度在2组间的差异无统计学意义。678Hz探测音鼓室声导纳图、声纳图及声导图在2组中均可见无峰型、单峰型、双峰型、三峰型图形，其与ABR检查的一致率分别为70．0％、58．0％、64．0％，kappa值分别为0．324、0．234、0．118。1000Hz探测音鼓室声导纳图、声纳图及声导图在正常组中单峰型分别为28耳（93．3％）、25耳（83．3％）、26耳（86．7％），在异常组中无峰型分别为15耳（75％）、17耳（85％）、13耳（65％），其与ABR的一致率分别为90．0％、92．0％、86．0％，kappa值分别为0．783、0．831、0．690。结论1000Hz探测音鼓室声导抗测试是诊断小于25周婴儿中耳功能的较准确的检查方法，226、678Hz探测音鼓室声导抗测试则不能提供这些婴儿中耳功能的准确的信息。     

Reflux of nasopharyngeal content into middle ear through the eustachian tube

Whether nasopharyngeal content passes into the middle ear in patients without any head and neck pathology during the recovery phase of anesthesia is shown with an objective and prospective method. Thirty-eight patients, 21 female and 17 male, aged between 17 and 76, were included in the study. During the recovery phase of general anesthesia, 10 ml of 5 mCi Tc-99m-MAA was administered intranasally to the patients with a 10-F catheter. A manometer-adapted cuffed intubation tube was placed in the nasal passage so that the cuff was located at the choana. The pressure changes reflecting to the nasopharynx were recorded. The patients were extubated 10 min after the radionuclide was applied. The scintigraphic evaluation was done at the end of the 1st hour of the application of radionuclide. Transmission and emission views were taken with a gamma camera. Passage of nasopharyngeal content into the middle ear via the eustachian tube was not a statistically significant observation. The mean value of maximum pressure reflecting from the nasopharynx did not differ significantly between patients. Our study does not support the hypothesis that nasopharyngeal content passes directly through the eustachian tube into the middle ear and causes deleterious effects.     

Application of distortion product otoacoustic emissions to inflation of the eustachian tube in low frequency tinnitus with normal hearing

Objective

This study was designed to investigate the applications of distortion product otoacoustic emissions to assess the efficacy of eustachian tube inflation on low frequency tinnitus with normal hearing.

Methods

Ninety-four patients (155 ears) suffering from subjective tinnitus with normal hearing sensitivity participated in this study. Control group consists of fifty volunteers (100 ears) without tinnitus. They were subjected to full history taking, otoscopy, basic audiologic evaluation and distortion product otoacoustic emissions (DPOAE). As for the patients with decreased DPOAE amplitude over a limited frequency range from 0.5 to 1 kHz, we offered nose dropping and tubal inflation for a week and DPOAE was preformed again. The patients were followed up for a month.

Results

34.8% DPOAE-gram showed decreased amplitude at the frequencies from 0.5 to 1 kHz in tinnitus group and “the ring” is mostly lower in pitch. Among the patients accepted the treatment of eustachian tube inflation, 16.7% the tinnitus disappeared, no recurrence within one month; 66.67% the tinnitus reduced within one month. 95.5% the amplitude of DPOAE showed improved over the limited frequency. 16.7% the tinnitus still existed.

Conclusion

The changes of the mechanical properties of ossicular chain or the tympanic membrane influenced by tympanum pressure may cause tinnitus, which is sub-clinical prior to the changes of audiometry and tympanometry. The low frequency tinnitus may gain transitory relief from ringing with the tubal inflation. DPOAE was proved to be a useful tool in the evaluation of the efficacy of tubal inflation on low frequency tinnitus with normal hearing.     

Direct measurement of middle ear pressure through the eustachian tube

Summary We report a method for measuring middle ear pressure through the eustachian tube. We used a 1-mm-diameter micro-tip catheter pressure transducer (Mikro-tip) and inserted this into the tympanic cavity through the eustachian tube. In preliminary studies, we measured four normal ears, two ears with tubal dysfunction, one ear with a dry perforation and 13 ears with otitis media with effusion (OME). Among those ears with OME, three showed negative middle ear pressure, three slight positive pressure and one normal pressure. These findings suggest that our transtubal method is reliable and useful for measuring middle ear pressure.     

Mucociliary function of the eustachian tube in the eustachian tube dysfunction

Background: Most of the tests to evaluate the eustachian tube (ET) function are focused on the ventilation function of the ET.

Aim: Here we evaluate mucociliary function of the ET in patients with ET dysfunction.

Materials and methods: Ten patients with ET dysfunction were enrolled into the study. Six patients had chronic tympanic membrane retraction and four patients had chronic middle ear effusion (MEE). All patients had intact tympanic membranes. Tympanometry and clinical examinations were done to all patients. Mucociliary function was evaluated with technetium labeled albumin and blue dye. Tympanometry and clinical examinations were done to six patients with chronic tympanic membrane retraction and four patients with chronic middle ear effusion (MEE). Mucociliary function of the ET was evaluated with technetium labeled albumin and blue dye placed into middle ear through an intact tympanic membrane and followed from nasopharynx ET orifice (blue dye) and with gamma camera (technetium).

Results: Blue dye was observed in tubal orifice in six (6 of 10) patients during 30?min observation. Five of those patients (5 of 6) had tympanic membrane retraction and one patient (1 of 6) had MEE. Tracer activity decreased from middle ear in six (6 of 10) patients. Four of those patients had tympanic membrane retraction and two had MEE.

Conclusion: Mucociliary function of the ET seems to be better in patients with tympanic membrane retraction than patients with middle ear effusion.

Significance: Mucociliary function of the ET is an important function for middle ear aeration, blue dye test is easily available to be used also in clinical practice.     

Structural changes in the rat middle ear mucosa due to endotoxin and eustachian tube obstruction

The middle ears of 48 rats were used to examine the effects of endotoxin injection, eustachian tube obstruction or a combination of eustachian tube obstruction and endotoxin injection. Animals were killed after 1, 2, 4, or 12 weeks and the middle ears processed for light and scanning electron microscopy. Compared to the normal middle ear mucosa, the epithelial layer was more pseudostratified, cuboidal or cylindrical after endotoxin injection or obstruction of the eustachian tube. In the early phase, numerous ciliated cells occurred in areas originally almost devoid of these cells. At 3 months, degeneration of ciliated cells was observed. The combination of eustachian tube obstruction and endotoxin injection also induced a more pseudostratified, cuboidal or cylindrical epithelium with an increased number of goblet cells. However, an early decrease occurred in the number of ciliated cells in the tympanic orifice of the eustachian tube. Furthermore, inflammatory cells, mainly PMNs, macrophages and lymphocytes, invaded the subepithelial layer after eustachian tube obstruction and endotoxin injection. These structural changes resulted in an impairment of the mucociliary transport system for clearance of the middle ear cavity. For this reason we believe that both endotoxin and eustachian tube obstruction or dysfunction play an important role in inducing persistent mucosal changes in the middle ear cavity, thereby prolonging otitis media with effusion. Received: 13 February 1998 / Accepted: 4 August 1998     

儿童鼻窦炎对咽鼓管与中耳传音功能的影响

目的：探讨儿童鼻窦炎对咽鼓管与中耳传音功能的影响及程度,观察治疗鼻窦炎后,中耳传音功能障碍的恢复情况。方法：对儿童鼻窦炎100例和正常儿童50例行耳科检查、咽鼓管咽口观察、声阻抗检查、纯音测听,对比结果;对鼻窦炎合并耳病变的68例患者（128耳）行有针对性的治疗。结果：鼻窦炎患者中鼓膜异常率为64%、咽鼓管咽口异常率为62%、咽鼓管功能异常率为63.5%、鼓室导抗图异常率为62.5%,听力减退47.5%,与正常儿童组相比,差异有统计学意义（P＜0.01）。急性鼻窦炎、亚急性鼻窦炎与慢性鼻窦炎中耳病变的发生率和程度相比,差异有统计学意义（P＜0.05）。治疗鼻窦炎后,中耳传音功能障碍有明显改善。结论：儿童鼻窦炎引起咽鼓管功能的改变,中耳病变发生率较正常儿童显著增高;随病程的延长,发病率增高且程度加重。     

咽鼓管功能障碍的慢性化脓性中耳炎治疗分析

目的探究咽鼓管功能障碍的慢性化脓性中耳炎治疗效果。方法2016年12月~2020年2月,从本院收治的咽鼓管功能障碍的慢性化脓性中耳炎患者中选择50例进行研究,回顾患者病例,以不同的治疗方案作为分组标准,将50例患者分为对照组、实验组,各25例。对照组只开展中耳乳突手术,实验组同期开展中耳乳突手术与咽鼓管球囊扩张术,对比两组听力改善效果、治疗效果、并发症发生率。结果实验组听力改善效果明显高于对照组,P<0.05;术后3个月、6个月实验组患者的EDTQ-7评分、听阈值均低于对照组,P<0.05;实验组并发症发生率低于对照组,P<0.05。结论在咽鼓管功能障碍的慢性化脓性中耳炎患者行中耳乳突手术时,同期开展咽鼓管球囊扩张术,既能改善患者的听力状态,又能提升治疗效果,减少并发症,值得推荐。     

Daily tympanometry as a functional measure of middle ear status and Eustachian tube function

Objective

Tympanometry is a relatively simple method to assess middle ear (ME) status and pressure. Daily, serial tympanometric measurements may contain information on the constitutional efficiency of Eustachian tube function (ETF). A study was conducted to determine family compliance with an effort-intensive protocol that requires daily tympanometry done on each child, daily symptom recording by a parent and weekly visits with study personnel and to abstract measures that summarize the data as they relate to ETF.

Methods

Longitudinal 6-month, daily follow-up on 249 children from 123 families by parent-recorded bilateral tympanometry and cold-like illnesses.

Results

Study attrition was minimal with 90% of the enrolled families completing 90% of the study period. Parental compliance with daily tympanometry was less. Overall, 67% of the families were 80% compliant and 51% were 90% compliant. Two measures (aMEP, average middle ear pressure; vMEP, standard deviation of MEP) were evaluated for summaries of the longitudinal tympanometric results. These measures were not bilaterally independent or mutually independent and were affected by cold-burden and age. The best summary measure of constitutional ET efficiency may be a dimensional map of vMEP on aMEP with subsequent subdivision of the dimensional space into zones with functional interpretations.

Conclusion

Long-term studies that require daily parental recording of tympanometry and the presence/absence of cold-like illness are feasible. It is expected that compliance with the required procedures can be increased substantially by pre-selection of candidate families. Preliminary data analyses suggest that the longitudinal tympanometric data contains important information on constitutional ETF.