分泌性中耳炎骨导听阈改变的临床观察

目的 证实分泌性中耳炎可导致感音神经性聋,为临床干预分泌性中耳为,尤其是顽固的分泌性中耳炎提供依据。方法 115例（164耳）分泌性中耳炎患者治愈后或未愈患者病程中复查的纯音测听检查结果,记录0．5、1、2、4kHz频率骨导听阈,计算骨导听力损失dB数。分为单侧组66例,双侧组49例,将66例单耳患者的健耳作为对照组。结果 在164耳中,出现骨导听阈提高的共94耳（57．3％）。双侧组与单侧组骨导听力损失程度差异均无显著性（P＞0．05）;单侧组和双侧组患耳在同一频率的骨导听力损失程度相似,且平均的骨导听力损失程度也相似;同频率之间的骨导听力损失不同,4kHz的骨导听力损失为最大。结论 半数以上分泌性中耳为可以导致感音神经性耳聋。在不同频率间的骨导听力损失不同,以高频损失为主,并有向语言频率区过渡的趋势。     

鼓膜置管治疗儿童分泌性中耳炎对骨导听阈影响的研究

分泌性中耳炎(secretory otitis media,SOM)为儿童多发病,为了探讨儿童SOM导致感音神经性聋(senserineural hearing loss,SNHL)的原因和手术治疗对骨导听阈的影响,我们分析了我科     

分泌性中耳炎骨导听力下降的临床观察

目的 分泌性中耳炎导致骨导听力下降的比例比人们认识的要高。方法:收集分泌性中耳炎患者33例(36耳),传导性聋16例(16耳);感音神经性聋11例(12耳),混合性聋6例(8耳),鼓室图为B或C,声反射消失。结果 经过4—12周治疗后,传导性聋患者听力改善或恢复12耳,无效4耳;感音神经性聋听力改善7耳,无效5耳,混合性聋听力改善2耳,无效6耳;结论 分泌性中耳炎可导致感音神经性聋。病程的长短是影响治疗效果的主要因素,鼓室图能否转为A型是判断疗效的客观指标指标。     

骨导听阈提高的难治性分泌性中耳炎临床分析

目的探讨骨导听阈提高的难治性分泌性中耳炎病因、诊断及治疗。方法回顾性分析2001年3月～2011年3月期间收治的骨导听阈提高的难治性分泌性中耳炎患者96例（148耳）临床资料,并以是否伴有腺样体肥大、变应性鼻炎或乳突病变分为3组。结果所有患耳均行鼓膜切开置管术,同时A组患者42例（70耳）并行腺样体切除术;B组患者22例（32耳）术后给予口服抗组胺药物及鼻用激素治疗;C组患者32例（46耳）予乳突手术治疗。鼓膜置管术后所有患耳于术后6个月拔管,78例（125耳）患者骨导听阈恢复正常;16例（21耳）患者骨导言语频率平均提高约11~25dBHL;2例（2耳）患者骨导听力无明显改善。术后91耳声导抗图为A型;21耳为B型;36耳为C型。结论提示伴有腺样体肥大、变应性鼻炎或乳突病变之难治性分泌性中耳炎与患者骨导听阈提高相关联,通过手术联合药物治疗解除相关致病因素、可有效提高患者骨导听力水平,阻止病情进一步发展,临床疗效满意。     

感音神经性聋与分泌性中耳炎的相关性研究

目的：探讨感音神经性聋与分泌性中耳炎的关系。方法：对治疗后骨导听力下降仍未恢复的38例分泌性中耳炎患者进行分析，观察健耳和患耳在不同频率的骨导听阈情况，并分别就其发病年龄、病程、积液性质和积液量与骨导听阈的关系进行观察。结果：患耳在不同频率的骨导听阈均大于健耳（均P＜0．01）；年龄愈大、病程愈长，感音神经性聋发生率愈高；积液为黏液者发生率高于浆液者；但与积液量无明显关系。结论：分泌性中耳炎可导致感音神经性聋，其发病原因和机制是多方面的，年龄大、病程长、积液为黏液者更易导致感音神经性聋的发生；应提高认识，早诊断，早治疗。     

慢性化脓性中耳炎与感音神经性聋的相关性分析

目的：探讨慢性化脓性中耳炎与感音神经性聋之间的相关性。方法：回顾分析174例单侧慢性化脓性中耳炎患者的骨导阈值改变。采用配对t检验分析0．5kHz，1．0kHz，2．0kHz，4．0kHz患耳与健耳骨导阈值的差异，单因素方差分析法分析胆脂瘤存在及听骨链破坏对语频(0．5kHz，1．0kHz，2．0kHz)和4．0kHz骨导阈值的影响，直线回归法讨论了语频和4．0kHz骨导阈值改变与年龄和病程之间的相关性。结果：患耳与健耳各频率骨导阈值之间差异有统计学意义。语频骨导听力损失程度随着患者年龄的增加而逐渐加重。胆脂瘤的存在以及听骨链破坏亦未增加感音神经性聋的发生概率。结论：慢性化脓性中耳炎可引起感音神经性聋。高频骨导听阈较低频更易受到影响。     

慢性化脓性中耳炎对骨导听阈的影响

对５９８例（８５１耳）慢性化脓性中耳炎术前纯音听力测试所得骨导听阈进行分析，资料显示，中耳炎时可能影响导听阈的因素有：慢性中耳炎的类型，病程，患病例数等，提示积极有效地治疗本病，对于患者导听阈的保持是十分重要的。     

慢性化脓性中耳炎的骨导听阈变化

慢性化脓性中耳炎的骨导听阈变化尹兆富，李道长，刘翠云单纯慢性化脓性中耳炎患者的骨导听力下降，临床多见。本文分析了１２５例无并发症的单耳和双耳用性化脓性中耳炎患者的纯音听阈，比较了骨导听阈变化，现报告如下。１资料与方法１．１临床资料随机选择门诊就诊的慢...     

成人分泌性中耳炎所致骨导听力下降的初步研究

目的:初步研究成人分泌性中耳炎(OME)所致的骨导听力下降.方法:2009-03-2010-02间收集的成人OME 50例,比较51耳中耳穿刺抽液前、后骨导听阈变化;单耳发病对耳健康者,将患耳穿刺前骨导听阈和健耳进行比较24例,穿刺后骨导与健耳比较22例,痊愈后骨导与健耳比较9例,痊愈后高频、超高频与健耳比较4例.结果:中耳穿刺抽出中耳积液后骨导听力在各频(0.5、1.0、2.0、4.0 kHz)均明显提高,4.0 kHz最显著;单耳发病对耳健康者2耳比较,穿刺前患耳骨导听力(0.5~4.0 kHz)下降,穿刺和痊愈后多数可以恢复至健耳水平;4例中有3例患耳痊愈后的高频、超高频(8、10、12、16 kHz)与健耳相比听力下降.结论:OME的中耳积液和内耳损伤均可引起骨导听力下降,但0.5~4.0 kHz频区的骨导听力下降多由中耳积液所致,内耳损伤早期主要表现为高频、超高频区的听力下降,随病程延长可向较低频区发展.     

慢性化脓性中耳炎骨导听阈变化相关因素分析

目的了解引起慢性化脓性中耳炎骨导听阈变化的相关因素：方法测试83例不同类型、不同病程的单侧慢性化脓性中耳炎患者的双耳骨导听阈，采用自身对照比较测试结果。结果慢性中耳炎类型、病程可影响骨导听阈。结论慢性中耳炎骨导听闽提高，多数提示内耳受损，但也存在其它因素影响。     

儿童分泌性中耳炎致骨导听力下降的临床特征分析

目的 探讨儿童分泌性中耳炎致骨导听力下降的特点、病因和预后.方法 回顾性分析75例(82耳)分泌性中耳炎患儿骨导听力下降的临床资料,并对其发病年龄、病程、积液性质和积液量与骨导听阈的关系进行观察.结果 75例患儿(82耳)骨导听力下降,平均骨导阈值在2.0 kHz和4.0kHz处增高最明显.骨导听阈与病程和积液性质显著相关(P＜0.01或P＜0.05),与年龄、积液量无关.75例患儿均采取鼓膜切开置管术和(或)腺样体切除术,术后给予药物治疗.随访6月,听力恢复正常者76耳,气导听阈下降但骨导听阈无改善者6耳.结论 分泌性中耳炎可导致儿童骨导阈值增高,是导致儿童耳聋的危险因素之一,及早干预可避免病情发展.     

Relationship between CT findings and sensorineural hearing loss in chronic otitis media

Objective

To investigate the relationships between the temporal bone CT findings and sensorineural hearing loss in ears with non-cholesteatomatous chronic otitis media (COM).

Methods

Preoperative bone conduction (BC) hearing thresholds of 266 patients (304 ears) with COM were compared with those of 342 normal individuals (440 ears) by audiometry. The incidence of abnormal BC threshold at lower frequencies (250–1000 Hz) and at higher frequencies (2000–4000 Hz) were examined and the differences between control and COM groups were compared by using χ2 test. In the COM group, the cross-sectional area of the mastoid air cells based on the axial CT image (n = 255) were correlated with the results of BC threshold.

Results

The percentage in the COM group exceeds 15% in their 50s at lower frequencies while in their 40s at higher frequencies. The BC thresholds were significantly better in the group with normal mastoid area than in those with smaller mastoid area at each decadal age group. The BC impairment from COM becomes worse as the course of the disease progresses and deteriorated from 40s rapidly, especially at higher frequencies and in the group with smaller mastoid area.

Conclusion

These results recommend that early treatment, including surgery, should be considered as early as possible before BC impairment occurs, especially for COM cases with smaller mastoid area, which may indicate the existence of more severe otitis media since earlier childhood.     

儿童分泌性中耳炎相关骨导听力下降的临床分析

目的：分析儿童分泌性中耳炎相关的骨导听力下降的病因、诊断和治疗方法。方法：回顾性分析150例（225耳）分泌性中耳炎儿童中35例（37耳）骨导听力下降的临床资料。结果：35例患儿均给予鼓膜切开置管或（和）鼻内镜下腺样体切除术,术后给予药物治疗。34例患儿骨导听阈恢复正常,1例患儿随访6个月改善不明显。结论：35例（23．3％）患儿的暂时性听阈移位或永久性听阈移位的发病机制与分泌性中耳炎有关。儿童分泌性中耳炎的发病病程中有发展成骨导听力下降的可能,应引起高度重视,及早干预避免病情发展。     

Association of otoscopic findings and hearing level in pediatric patients with otitis media with effusion

Objective

To find the association between the abnormalities of tympanic membrane characteristics and the hearing level in pediatric patients with otitis media with effusion.

Methods

Sixty-three pediatric patients with otitis media with effusion had undergone ear examinations by pneumatic otoscopy to assess the color, transparency, mobility, fluid level and retraction of the tympanic membrane. An audiogram was done in the same setting, average hearing threshold and air-bone gap were measured. Otoscopic findings and the result of the hearing test were analyzed to identify the association between the abnormalities of the tympanic membrane characteristics and elevated hearing threshold.

Results

Hearing loss was found in 92.1% of the patients. Mean hearing level was 31.7 ± 10.3 dB. From linear regression analysis, the patients with dull or opaque tympanic membrane had a significantly higher hearing threshold of 7.2 dB than the patient with translucent ear drum after adjusting for mobility and retraction. The patients with tympanic membrane retraction had a higher hearing threshold of 5.1 dB than the patient who had no retraction after adjusting for transparency and mobility. Mobility had a significant relationship to elevated hearing threshold in the univariate analysis but not in multivariable analysis.

Conclusion

Opacity and retraction were the two characteristics of abnormal tympanic membrane that were associated with elevated hearing threshold in the patients with otitis media with effusion. Hearing test is suggested if opacity or retraction of the tympanic membrane is found.     

腺样体切除对儿童分泌性中耳炎听力的影响

目的探讨腺样体切除术对分泌性中耳炎听力的影响。方法对72例确诊为腺样体肥大所致的分泌性中耳炎患儿随机分为非手术组和手术组，分别进行药物治疗和手术治疗。结果非手术组治疗后听阈≤20dB12耳，手术组治疗后听阈≤20dB36耳，两组治疗后听阈改变经x^2检验差异有显著性。结论腺样体切除术对分泌性中耳炎所致的听力下降的改善是非常有效的。     

NOS在分泌性中耳炎所致感音神经性聋中的作用

目的:探讨NOS及NO在分泌性中耳炎(SOM)所致感音神经性聋(SNHL)中的作用。方法:治疗前分别抽取16例伴有SNHL的SOM患者(A组)及16例不伴有SNHL的SOM患者(B组)的中耳积液,检测两组中耳积液内NOS活性和NO含量。结果:A组中耳积液内NO含量(181.19±44.31)μmol/L明显高于B组(137.00±40.67)μmol/L(P<0.01),A组中耳积液内NOS活性(97.69±29.62)U也明显高于B组(75.50±26.99)U(P<0.05)。结论:NO可能通过直接损伤和与其他炎症递质共同作用增强局部炎症反应,在SOM所致的SNHL过程中发挥重要作用。     

慢性化脓性中耳炎与感音神经性聋

目的：观察慢性化脓性中耳炎（CSOM）对感音神经性聋（SNHL）的影响。方法：测量135例（168耳）CSOM患者的骨导听阈,并以66例单侧患者的健耳为对照,比较不同类型、不同病程的CSOM的骨导听阈。结果：CSOM各组骨导听阈均值明显高于对照组,且与中耳炎的类型和病程相关。结论：CSOM可引起SNHL,且中耳病变越重,病程越长,听力下降越明显