胆脂瘤型中耳炎合并胆固醇肉芽肿

目的:探讨合并胆脂瘤型中耳炎的胆固醇肉芽肿发病原因。方法: 回顾分析12例合并胆脂瘤型中耳炎的胆固醇肉芽肿患者的影像检查、手术探查及术后随访等临床资料。结果:12耳颞骨CT均显示上鼓室、鼓窦、乳突蜂房内软组织影,听小骨周围软组织影,听骨链残缺或显示不清;12耳手术探查可见骨窦入口均被袋状胆脂瘤完全阻     

中耳胆固醇肉芽肿并发胆脂瘤的回顾性分析

目的探讨中耳胆固醇肉芽肿并发胆脂瘤的病因、发病机制及二者间的相互关系,并就该病的诊断及治疗方法进行讨论.方法采用回顾性研究,总结分析我院1988年3月～2000月5月经手术和病理诊断证实的63例中耳胆固醇肉芽肿患者中并发胆脂瘤15例患者的临床资料.结果15例患者均有较长时间的病史,除不同程度的听力下降外,皆有耳溢液,其中脓血性及血性耳溢液8例;均有鼓膜穿孔,其中松驰部穿孔10例.11例颞骨CT扫描者均报告为胆脂瘤型中耳炎.15例皆行手术治疗,术中发现胆固醇肉芽肿与胆脂瘤交错存在,胆固醇肉芽肿多好发于鼓窦、上鼓室及乳突腔,6例乳突气化良好者气房内有咖啡色粘液蓄积,并有闪烁发亮的点状胆固醇结晶.12例出现鼓窦扩大、上鼓室外侧壁破坏、听骨链侵蚀、鼓室天盖及面神经水平段暴露等骨质破坏.6例咽鼓管鼓口、15例鼓峡阻塞.所有病例术后均干耳,12例行鼓室成形术者11例术后听力有不同程度的提高.结论中耳胆固醇肉芽肿与胆脂瘤的病理生理改变有共同之处,即均有通气受阻、引流障碍,二者可能为同一致病因素引起的两个不同且相互作用的病理过程.对慢性中耳炎患者出现不明原因的血性耳溢液者应想到本病可能,应结合CT、磁共振成像(magneticresonanceimaging,MRI)提高术前诊断率.治疗应根据病变部位、范围和程度不同采取不同的术式,其原则是彻底清除病变、通畅引流.     

中耳胆固醇肉芽肿

目的 探讨中耳胆固醇肉芽肿的病因、发病机制以及治疗方法。方法 回顾性总结分析我院1988年3月～2003年3月经手术和病理证实的70例(耳)中耳胆固醇肉芽肿病人的临床资料。70例(耳)中，术前诊断为胆脂瘤型中耳炎37例，骨疡型中耳炎13例，此二者之中考虑胆固醇肉芽肿者13例；中耳乳突术后感染5例，分泌性中耳炎7例，特发性血鼓室8例，其中考虑可能为胆固醇肉芽肿者2例。所有病人均有不同程度听力下降、耳闭塞感或伴耳鸣，亦可有耳溢液、头痛、头昏及其他症状。70例(耳)均接受手术治疗，依照术前检查，根据病变程度不同而选择不同术式。结果 65例(耳)干耳，随访1年以上无复发。3例(耳)行改良乳突根治加鼓室成形术，术后半年流脓，后改行乳突根治术，术后均干耳；2例(耳)行鼓室探查加鼓窦开放术，术后半年及1年又流脓伴听力下降，后改行改良乳突根治加鼓室成形术，术后干耳。结论 中耳胆固醇肉芽肿的病因主要有：含气腔通气受阻、引流障碍及含气腔出血。中耳胆固醇肉芽肿与特发性血鼓室、分泌性中耳炎及胆脂瘤关系密切。术式的选择应根据病变范围和程度来决定，其原则是彻底清除病变，保持通畅引流。     

中耳胆固醇肉芽肿并发胆脂瘤的回顾性分析

目的 探讨中耳胆固醇肉芽肿并发胆脂瘤的病因、发病机制及二者间的相互关系,并就该病的诊断及治疗方法进行讨论。方法 采用回顾性研究,总结分析我院1988年3月－2000年5月经手术和病理诊断证实的63例中耳胆固醇肉芽肿患者中并发胆脂瘤15例患者的临床资料。结果 15例患者均有较长时间的病史,除不同的程度的听力下降外,皆有耳溢然,其中脓血性及血性耳溢液8例;均有鼓膜穿孔,其中松弛部穿孔10例。11例颞骨CT扫描者均报告为胆脂瘤型中耳炎。15例皆行手术治疗,术中发现胆固醇肉芽肿与胆脂瘤交错存在,胆固醇肉芽肿多好发于鼓窦、上鼓室及乳突腔,6例乳突气化良好者气房内有咖啡色粘液蓄积,并有闪烁发亮的点状胆固醇结晶。12例出现鼓窦扩大、上鼓室外侧壁破坏、听骨链侵蚀、鼓室天盖及面神经水平段暴露等骨质破坏。6例咽鼓管鼓口、15例鼓峡阻塞。所有病例术后均干耳,12例行鼓室成形术者11例术后听力有不同程度的提高。结论 中耳胆固醇肉芽肿与胆脂瘤的病理生理改变有共同之处,即均有通气受阻、引流障碍,二者可能为同一致病因素引起的两个不同且相互作用的病理过程。对慢性中耳炎患者出现不 明原因的血性耳溢液者应想到本病可能,应结合CT、磁共振成像（magnetic resonance imaging,MRI)提高术前诊断率。治疗应根据病变部位、范围和程度不同采取不同的术式,其原则是彻底清除病变、通畅引流。     

慢性化脓性中耳炎咽鼓管鼓口病变与咽鼓管功能的相关性

1999年 8月～ 2 0 0 0年 7月我们用鼓室镜观察 44例慢性化脓性中耳炎术前患者的鼓室及咽鼓管鼓口 ,以了解鼓口的病变情况对咽鼓管功能的影响 ,现将结果报告如下。一、临床资料与检查方法1 临床资料 :慢性化脓性中耳炎术前患者 44例 (4 5耳 ) ,男 2 4例 ,女 2 0例 ,年龄 9～ 5 9岁。经过选择患者均为鼓膜中央性穿孔 ,并接受了手术治疗 ,术中证实为单纯型 2 4耳 ,胆脂瘤型 15耳 ,骨疡型 6耳。术前颞骨ＣＴ检查显示单纯型的鼓室、鼓窦及乳突无软组织影 ,无骨质破坏及听小骨破坏、吸收现象 ;而胆脂瘤型和骨疡型的鼓室、鼓窦及乳突有软组织影 ,有…     

颞骨CT和咽鼓管功能检查对胆脂瘤型中耳炎咽鼓管鼓室口病变的诊断意义

目的：探讨颞骨高分辨率CT（HRCT）和咽鼓管功能检查对胆脂瘤型中耳炎患者术前咽鼓管鼓室口病变的诊断价值。方法：回顾性分析38例（41耳）胆脂瘤型中耳炎患者术前颞骨HRCT扫描和咽鼓管功能综合测试仪检查结果，并与术中显微镜下探查咽鼓管鼓室口处病变情况进行对比分析。结果：颞骨HRCT发现咽鼓管鼓室口软组织占位影34耳；术中发现鼓室口病变32耳，其中为肉芽组织22耳和胆脂瘤4耳，脓团堵塞3耳，鼓室口周围黏膜肥厚肿胀2耳，黏膜粘连闭锁1耳。咽鼓管功能障碍37耳，其中为阻塞型32耳，闭锁不全型5耳。结论：对胆脂瘤型中耳炎患者术前进行颞骨HRCT扫描和咽鼓管功能检查，对术中有目的地处理咽鼓管鼓室口的病变，制定手术方案和预估治疗效果具有重要意义。     

耳内镜下外耳道“锁孔”技术处理累及乳突的中耳胆脂瘤的初步实践

目的本文旨在探索耳内镜手术中的“锁孔”技术在中耳胆脂瘤手术中的临床应用价值。方法2017年1月至2018年12月间收治的65名单侧中耳胆脂瘤患者,27例患者术前的颞骨CT提示低密度影及骨质破坏局限于上鼓室,鼓窦和乳突区域未见异常;38例患者术前的颞骨CT显示上鼓室内形成的低密度影像,存在骨质破坏,而鼓窦及乳突内也存在类似的低密度影像,难以确定病变是否累及乳突腔。术中耳内镜下经耳道“锁孔”技术早期探查上鼓室、鼓窦和后方的乳突腔内的空间,确定胆脂瘤范围,修正手术方案、优化手术策略。结果术前通过颞骨薄层CT显示的胆脂瘤仅局限于上鼓室的27例患者中,其中17例患者的影像学病变范围与“锁孔”技术探查结果吻合;另外10例病变累及鼓窦及乳突。术前38例患者的影像学显示上鼓室胆脂瘤可能累及鼓窦和乳突,术中通过“锁孔”技术验证,29例为上鼓室胆脂瘤侵及乳突;9例为堵塞形成的黏膜增厚及肉芽组织等非胆脂瘤病变。患者术后随访时间均超过了2年,随访方式为耳内镜及颞骨CT,8例患者的鼓窦及乳突区存在可疑软组织影,进行了便捷的内镜下“锁孔”的探查,鼓窦及乳突区未见胆脂瘤复发,软组织影为增厚黏膜及肉芽。结论在耳内镜下经外耳道径路,可结合持续灌流模式,在耳道后上壁快速开放直径4-6mm的骨窗,通过“锁孔”可以早期明确和判断中耳胆脂瘤累及乳突、鼓窦、上鼓室的病变范围,有利于修正手术方式,减少不必要的骨质磨除,更利于微创的实现和便于手术中耳道重建。     

中耳胆固醇肉芽肿的诊断与手术治疗

目的探讨中耳胆固醇肉芽肿的诊断与手术治疗方法。方法分析14例（15耳）经手术并病理证实的中耳胆固醇肉芽肿患者的病例资料。其中,行完壁式乳突根治加鼓室探查加中耳置管术6耳;完壁式乳突根治加听骨链重建6耳;改良乳突根治加鼓室成形3耳。结果1耳改良乳突根治加鼓室成形术后仍间断溢液;1耳中耳置管术后2周通气管脱落,中耳积液复发,需通气管重新置入半年病情缓解后取出。所有病例术后随访0．5～3年,14耳术后语频听力提高15dBHL以上,1耳术后听力无改变。结论中耳胆固醇肉芽肿应及早手术治疗。根据病变的程度、部位及范围,采取不同的手术方法。原则是彻底清除病变,建立咽鼓管、鼓室、鼓窦、乳突的通气系统。     

胆脂瘤型中耳炎16例

胆脂瘤型中耳炎16例中男13例,女3例,均为单侧胆脂瘤型中耳炎,左耳10例,右耳6例,25～40岁.术中发现听骨完全消失9耳,部分听骨残存7耳,多为锤、砧骨破坏消失,面神经水平段暴露6耳.术前纯音测听语言区平均听阈骨、气导差为30～40dB.乳突X线片示12例X线片有0.2～0.3cm的类圆透亮区,周边硬化致密,不同程度地累及鼓室、鼓窦入口和鼓窦.4例透亮影周边部分硬化,有轻度不规则的侵蚀性骨破坏.16耳均行乳突手术治疗,手术采取耳内进路,经外耳道开放上鼓室,与外耳道连通,要点是削低外耳道后壁并彻底清除上鼓室、鼓窦、乳突病变,形成大的外耳道口,这对术腔通气极为重要,术腔采用游离皮瓣覆盖以加快干耳.术中见上鼓室、鼓窦、乳突腔内有完整包膜的胆脂瘤或豆腐渣样胆脂瘤上皮.胆脂瘤仅位于上鼓室5耳,其余11耳鼓窦、鼓窦入口及乳突腔内均有大量胆脂瘤.术后听力提高13耳,占80%;听力改进15～25dB 4耳,占25%;10～20dB 9耳,占56%;听力无明显改进3耳,占19%.无面瘫和外淋巴漏等并发症发生.13耳术后均得1干耳,3耳继发流脓.     

乳突切除术治疗分泌性中耳炎

目的：探讨乳突切除术治疗分泌性中耳炎的疗效。方法：回顾性分析22例（24耳）行乳突切除手术的分泌性中耳炎患者,其中行完壁式并面隐窝开放手术20耳,开放式手术4耳,同期行鼓膜切开置管术3耳。术后6个月拔管,测试术前、术后的听力。结果：所有患者术后均未出现听力下降,19耳有不同程度的听力提高,鼓室导抗图为A型曲线者17耳,C型曲线者7耳。术后随访6-36个月,未见中耳炎复发。结论：对反复发作、长期迁延经治疗无效的分泌性中耳炎,乳突切除术可改善乳突、鼓窦、鼓室和咽鼓管的通气引流,减少分泌性中耳炎的复发。     

The expression of vascular endothelial growth factor (VEGF) and VEGF‐C in early laryngeal cancer: relationship with radioresistance

The expression of vascular endothelial growth factor (VEGF) and VEGF‐C in early laryngeal cancer: relationship with radioresistance Angiogenesis is essential for tumour growth and invasion. Vascular endothelial growth factor (VEGF) is a prime mediator of tumour angiogenesis. VEGF‐C is a closely related protein that effects lymphatic endothelial cells and may be important in the process of lymphatic metastasis. The purpose of this study was to evaluate the expression of these cytokines in patients with T1 and T2a glottic, squamous cell carcinoma, in comparison with normal epithelial control tissue, to ascertain any association with radioresistance. Twenty‐two tumours treated by radiotherapy (13 radiosensitive, nine radioresistant) and seven normal control tissues were studied. The minimum follow‐up was 2 years after radiotherapy. Expression of VEGF and VEGF‐C was evaluated by immunohistochemistry of formalin‐fixed, paraffin‐embedded biopsy specimens. Analysis was carried out using a quantitative computer image analyser. Both VEGF and VEGF‐C were detectable in tumour and normal control specimens. There was increased expression in tumour specimens of both VEGF (P = 0.03) and VEGF‐C (P < 0.001). In addition, the expression of VEGF‐C was associated with tumours of higher histological grade (P = 0.021). There was, however, no difference in VEGF and VEGF‐C expression between radioresistant and radiosensitive tumours. The expression of VEGF and VEGF‐C is increased in early laryngeal squamous cell carcinoma (SCC). However, measuring the expression of these proteins cannot predict radioresistance in this tumour group.     

Treatment of Maxillary Sinus Carcinoma: Clinical Results Using the Kitasato Modality

The conventional therapeutic regimen for maxillary sinus carcinoma consists of dissection of the maxilla, full-dose irradiation and extensive chemotherapy. However, the results obtained with this treatment are often poor. Even when patients recover, their quality of life is significantly reduced as a result of deformity of facial structures and swallowing and articulation dysfunctions. A retrospective analysis of 68 patients with maxillary sinus carcinoma treated with the Kitasato modality between 1975 and 1999 was conducted. All patients underwent pergingival maxillary sinus surgery combined with pre- and postoperative irradiation therapy with standardized total doses of 16 Gy; the postoperative irradiation was given in combination with regional intra-arterial infusion chemotherapy administered via the superficial temporal artery. All visible tumor lesions were removed where possible in order to preserve or facilitate cellular immunity after surgery. The cumulative 5-year survival rates were 85.7% for Stage II patients, 88.1% for Stage III, 76.6% for Stage IVA and 75.0% for Stage IVB.     

Tongue Base Reduction with Temperature-controlled Radiofrequency Volumetric Tissue Reduction for Treatment of Obstructive Sleep Apnea Syndrome

In recent years a considerable effort has been made to establish the use of different surgical techniques for the treatment of obstructive sleep apnea syndrome (OSAS). Nevertheless, treatment of hypopharyngeal obstruction due to tongue base hypertrophy remains in many ways an unsolved problem. The aim of this study was to evaluate the safety and efficacy of tongue base reduction with temperature-controlled radiofrequency volumetric tissue reduction in the treatment of OSAS. Twenty patients with OSAS and tongue base hypertrophy were treated with radiofrequency tissue ablation. An intensified treatment protocol was used, delivering 2,800 J per treatment session under local anesthesia. Two nights of polysomnography testing were performed before and after treatment. Daytime sleepiness, snoring and postoperative morbidity were assessed using questionnaires. Mean respiratory disturbance index (RDI) was reduced from 32.1 to 24.9/h after a mean of 3.4 treatment sessions. Six patients (33%) were cured after the procedure (reduction in RDI of &#83 50% and a postoperative RDI of <15/h) and ten (55%) showed an improvement of >20% in their RDI. Daytime sleepiness and snoring improved significantly. Peri- and postoperative morbidity was low; one severe complication occurred (tongue base abscess). We were able to achieve similar cure and responder rates to those reported in a recently published pilot study but with a reduced number of treatment sessions. We believe that this technique may improve patient acceptance and have beneficial cost implications.     

Cervical Reflex Induced by Click Stimuli in Cats

We studied click-evoked potentials in the anterior horn of the spinal cord in 17 cats. A concentric needle electrode was inserted into the anterior horn of the spinal cord at levels C3-C6. Potentials evoked with 105 dB SPL clicks were recorded with a peak latency of 4.89-5.10 ms only at the C3 level. These responses were observed 45-60 dB SPL above the auditory brainstem response (ABR) threshold, and no potentials were evoked by stimulation of the contralateral ear. Average was performed 100 times with changes in stimulation frequency of 1-20 Hz. The amplitude of the potentials decreased with increasing stimulus frequency, but there were no changes in ABRs. The responses disappeared after destruction of the medial vestibulospinal tract at the obex level, but ABRs were still recorded. The spinal nucleus of the accessory nerves was located in the anterior horn of the spinal cord at levels C1-C6, and the sternocleidomastoid muscle motoneurons were found at levels C1-C3. The click-evoked potentials recorded in this study reflect responses of the spinal nucleus of accessory nerves through the vestibulospinal tract to click stimulation. The responses have the same characteristics as vestibular-evoked myogenic potentials that can be recorded using surface electrodes over the sternocleidomastoid muscles of humans.     

Lack of significant estrogen and progesterone receptor expression in nasal telangiectasias in hereditary hemorrhagic telangiectasia: an immunohistochemical analysis

Obstructive sleep apnea syndrome (OSAS) is characterized by snoring and apnea during sleep leading to decreased oxygen saturation and disturbed sleep, excessive daytime sleepiness and neuropsychological disturbances. This study investigates cognitive neuropsychological abilities in a group of 53 OSAS patients before and after treatment with uvulopalatopharyngoplasty. General intellectual ability, verbal learning and memory as well as executive functioning were measured at baseline and 6 months postoperatively. After surgery there were significant improvements in verbal learning and memory (mean change - 39, SD 57.3, p <0.001), recall (mean change - 24.3, SD 39.3, p <0.001) and executive functioning (as assessed by percentage of errors on the Wisconsin Card Sorting Test; mean change-9.1, SD 15.7, p <0.001). These improvements were in accordance with improvements in the degree of sleep apnea, the oxygen desaturation index (mean change -9.7, SD 15.9, p <0.001) and arterial minimum oxygen saturation (mean change 4.5%, SD 10.2%, p <0.01). Surgical treatment seems to improve verbal learning, memory and recall and executive functions in parallel with better oxygenation in OSAS.     

Measurement of chemosensory function

Although hundreds of thousands of patients seek medical help annually for disorders of taste and smell, relatively few medical practitioners quantitatively test their patients' chemosensory function, taking their complaints at face value. This is clearly not the approach paid to patients complaining of visual, hearing, or balance problems. Accurate chemosensory testing is essential to establish the nature, degree, and veracity of a patient's complaint, as well as to aid in counseling and in monitoring the effectiveness of treatment strategies and decisions. In many cases, patients perseverate on chemosensory loss that objective assessment demonstrates has resolved. In other cases, patients are malingering. Olfactory testing is critical for not only establishing the validity and degree of the chemosensory dysfunction, but for helping patients place their dysfunction into perspective relative to the function of their peer group. It is well established, for example, that olfactory dysfunction is the rule, rather than the exception, in members of the older population. Moreover, it is now apparent that such dysfunction can be an early sign of neurodegenerative diseases such as Alzheimer's and Parkinson's. Importantly, older anosmics are three times more likely to die over the course of an ensuring five-year period than their normosmic peers, a situation that may be averted in some cases by appropriate nutritional and safety counseling. This review provides the clinician, as well as the academic and industrial researcher, with an overview of the available means for accurately assessing smell and taste function, including up-to-date information and normative data for advances in this field.