甲状腺外科专业化的临床资料分析

目的 评价耳鼻咽喉头颈外科医师手术治疗甲状腺良性疾病的结果。方法回顾性分析北京朝阳医院耳鼻咽喉头颈外科2001年1月-2004年4月手术治疗496例甲状腺良性疾病的方式、术后并发症的发生、手术耗时、颈部切口长度、住院时间和术后复发的情况。结果甲状腺一侧腺叶加对侧腺叶部分切除314例，甲状腺一侧腺叶加峡部切除76例，甲状腺双侧腺叶次全切除29例，单纯甲状腺峡部切除3例，甲状腺全切除46例，颈部低位领式切口入路切除胸骨后结节性甲状腺肿28例。术后一侧喉返神经损伤发生率为0．2％(1／496)，无双侧喉返神经损伤。术后暂时性低钙血症发生率为1．8％(9／496)，无永久性低钙血症。术后出血发生率为0．6％(3／496)，无切口感染。手术耗时平均为66min，颈部切口长度平均为5．2cm，住院时间平均为6．3d。术后复发率0．2％(1／496)。结论受过严格头颈外科培训的耳鼻咽喉科医师行甲状腺良性疾病手术可降低喉返神经损伤的发生。     

甲状腺肿瘤10年1862例临床分析

目的:探讨甲状腺肿瘤的治疗效果。方法:回顾性分析1995年2004年十年间1862例甲状腺肿瘤(1524例甲状腺良性肿瘤,338例的甲状腺癌)的临床资料及随访结果。结果:外科手术操作技术一律采用包膜解剖技术(除峡部外),即常规显露喉返神经及逐一结扎进人甲状腺的三级血管分支,既避免损伤喉返神经,又保留了甲状旁腺血供。局限于一侧的良性肿瘤以甲状腺腺叶切除,双侧甲状腺良性肿瘤,以较大一侧的甲状腺腺叶切除加对侧肿块切除术;T1-T3期分化性甲状腺癌,行一侧的甲状腺腺叶+峡部切除,对T4期分化性甲状腺癌,则进行全甲状腺切除或近全甲状腺切除术;对甲状腺髓样癌行全甲切除+功能性颈清术;临床NO分化型甲状腺癌行甲状腺腺叶+峡部切除+中央区淋巴结清扫术。手术并发症包括术后出血2例(0.1%),乳糜漏1例(0.05%)2例暂时性甲状旁腺功能低下,无喉返神经损伤及永久性甲状腺功能低下。结论:严格掌握甲状腺肿瘤外科的治疗原则及熟悉包膜解剖技术是甲状腺外科手术的关键。     

经胸骨上径路内镜下甲状腺手术

目的 对实施经胸骨上径路内镜下甲状腺手术进行总结.方法 对35例甲状腺肿瘤患者用超声刀行经胸骨上径路内镜下甲状腺肿瘤切除术.结果 35例手术均顺利完成,其中一侧腺叶大部切除术24例,腺叶全切除术4例,平均手术时间130(105～190)分钟,峡部肿瘤切除术2例,平均手术时间60(50～70)分钟;双侧腺叶大部切除术2例,平均手术时间228(185～270)分钟;一侧腺叶大部切除术加一侧肿瘤切除术3例,平均手术时间163(140～215)分钟.出血量5 ml～40 ml,术后平均住院4(3～5)天.结论 经胸骨上径路内镜下甲状腺手术创伤小,中转手术无须另作切口,切口隐蔽,术后并发症少,安全可行.     

无注气甲状腺内镜外科手术

目的初步评价无注气的内镜甲状腺外科手术的可行性。方法对16例甲状腺肿物的患者分别采用颈前悬吊方法和胸骨柄上方2～3cm水平切口进行甲状腺内镜外科手术，年龄23～2岁，其中甲状腺瘤6例，结节性甲状腺肿10例。2例采用锁骨下人路，14例采用胸骨柄上小切口人各，全部内镜下完成甲状腺手术，其中甲状腺腺叶切除术8例，甲状腺次全切除术7例，峡部加双侧腺十部分切除术1例。结果内镜下利于显露和识别喉返神经和甲状旁腺，手术时间为1．1～4．0h，无并发症，术后的美观效果好。结论无注气内镜下甲状腺外科手术技术是可行和安全的，可作为甲状泉外科的一种新术式。     

甲状腺外科无喉返神经损伤的可能性

目的探讨甲状腺外科手术喉返神经(recurrenlaryngealnerve,RLN)零损伤的可能性。方法回顾性分析我科2001年3月～2005年3月659例甲状腺疾病的手术方式、术后RLN损伤、甲状旁腺功能低下、术后出血和术后复发等并发症的发生。术中常规解剖RLN,保护并勿过度解剖甲状旁腺及其供应的血管。结果甲状腺一侧腺叶加对侧腺叶部分切除376例、甲状腺一侧腺叶加峡部切除87例、甲状腺双侧腺叶次全切除76例、甲状腺全切除73例、颈部低位领式切口入路切除胸骨后结节性甲状腺肿47例。术后无一例发生RLN损伤。术后暂时性低钙血症发生率为1.67%(11/659)。无永久性低钙血症。术后出血需再手术止血和术后伤口血肿的发生率分别为0.60%(4/659)和0.45%(3/659)。甲状腺功能低下和术后复发的发生率分别为0.45%(3/659)和0.15%(1/659),无切口感染。结论甲状腺外科手术中熟悉RLN的解剖知识,常规紧贴甲状腺被膜外分离并全程解剖RLN及其分支可避免RLN的损伤。     

甲状腺手术后不置引流的技术探讨

目的:探讨不伴颈清扫的甲状腺切除术后术腔不放置引流的可行性。方法:连续选取2013-06-2014-06期间我科不伴颈侧清扫的88例甲状腺切除病例,其中甲状腺腺叶切除术42例,甲状腺腺叶加对侧部分切除术17例,甲状腺全切术29例,进行回顾性分析。同时收集2014-01-2014-06期间来我院就诊的15例外院甲状腺手术患者,对术后切口的恢复进行对比。结果:4例胸骨后甲状腺肿切除后出现少量术腔积液,余均未出现术后积液。术后切口的恢复与外院手术组比较,更符合美容原则。结论:对于不伴有选择性颈清扫的甲状腺切除手术,按解剖层次精细操作,术中配以电刀、双极电凝和超声刀的联合应用,彻底止血,这类手术术腔大部分是可不放置引流,同时能增加美容效果。     

侵犯气管的分化型甲状腺癌气管袖状切除术

目的 寻找侵入气管及喉的分化型甲状腺癌手术治疗的方法,探讨包括气管及喉部分切除在内的根治性手术可行性和有效性。 方法 3例均为女性,2例为甲状腺乳头状癌,1例滤泡状癌,均侵入气管。一例采取右侧甲状腺腺叶切除术、气管袖状切除术及声门下喉部分切除术,术后因喉切缘肿瘤残留补充放疗总量55 Gy;另一例采取左侧甲状腺腺叶切除术、气管袖状切除术及左改良根治性颈淋巴结清扫术;第三例采取全甲状腺切除、气管袖状和喉部分切除术、双侧改良根治性颈淋巴结清扫术和上纵隔淋巴结清扫术。 结果术后均无声音嘶哑,呼吸平稳,无需气管切开,均无吻合口漏。随访近2年均未见吻合口狭窄和肿瘤复发。 结论对侵入气管及喉的分化型甲状腺癌患者进行包括气管袖状切除术在内的根治性手术治疗是可行和有效的。     

无注气甲状腺内镜外科手术

目的 初步评价无注气的内镜甲状腺外科手术的可行性。方法 对16例甲状腺肿物的患者分别采用颈前悬吊方法和胸骨柄上方2-3 cm水平切口进行甲状腺内镜外科手术,年龄23-62岁,其中甲状腺瘤6例,结节性甲状腺肿10例。2例采用锁骨下入路,14例采用胸骨柄上小切口入路,全部内镜下完成甲状腺手术,其中甲状腺腺叶切除术8例,甲状腺次全切除术7例,峡部加双侧腺叶部分切除术1例。结果 内镜下利于显露和识别喉返神经和甲状旁腺,手术时间为1.1-4.0 h,无并发症,术后的美观效果好。结论 无注气内镜下甲状腺外科手术技术是可行和安全的,可作为甲状腺外科的一种新术式。     

腔镜下锁骨下入路甲状腺腺叶切除术

目的:探讨腔镜下锁骨下入路甲状腺腺叶切除术的临床医用并总结手术经验。方法:对35例符合指征的患者行腔镜下锁骨下入路甲状腺腺叶切除术。应用自动拉钩建立术腔,吸引剥离器与超声刀联合使用分离并切除腺叶,术中以甲状腺下动脉为标志寻找喉返神经。结果:患者手术均获成功,无并发症发生。33例术中冷冻病检诊断为甲状腺肿,2例诊断为甲状腺乳头状癌。良性病变者术后无术区肿胀,皮肤麻木及其他不适,并对美容效果满意。结论:腔镜下锁骨下入路甲状腺腺叶切除术治疗甲状腺良性病变具有手术创伤小,安全性高,操作简便,美容效果好等优势,值得临床广泛应用。     

经皮低位切口鼻内镜下甲状腺及甲状旁腺肿瘤切除术

目的 探讨及总结经皮低位切口鼻内镜下治疗甲状腺及甲状旁腺肿瘤的可行性及手术疗效.方法 2005年7月至2007年9月期间治疗的36例患者中,女34例,男2例;年龄18～65岁,中位年龄32岁.甲状腺瘤31例,结节性甲状腺肿2例,甲状腺癌2例,甲状旁腺囊腺瘤1例.用鼻内镜经上胸部切口,局部牵拉形成操作腔,鼻内镜下行甲状腺肿瘤切除术32例,甲状腺部分切除术1例,甲状腺叶切除2例,甲状旁腺肿瘤切除术1例.结果 36例患者切口均Ⅰ期愈合,无喉返神经麻痹.随访2～24个月,中位随访时间14个月,无肿瘤复发.术后疼痛轻,美容效果满意.结论 经胸骨鼻内镜下甲状腺和甲状旁腺肿瘤手术,操作简便,颈部无瘢痕.     

A Decrease in Maxillary Sinus Pressure,as Seen in Upper Airway Allergy or Infection,Results in an Increase in Upper Airway Nitric Oxide Levels

The paranasal sinuses are connected to the nasal cavity via small osties. Ostial occlusion, caused by mucosal swelling, will result in a slowly increasing negative pressure inside the sinus cavity. In parallel, the oxygen content in the sinus will decrease, resulting in the development of relative hypoxia. Hypoxia is a powerful inducer of nitric oxide (NO) synthase, and inducible NO synthase has been shown to be present in considerable amounts in the upper airways, including the sinuses. The present study was designed to investigate whether a reduction in sinus pressure would affect upper airway NO production. Thirteen healthy volunteers were investigated. A pressure chamber was used to lower the ambient pressure to-4.9 kPa. NO was sampled from one nostril or via a drainage tube inserted into the maxillary sinus before, during and after the hypobaric exposure. When the pressure was decreased, NO levels increased from 256 &#45 15 to 316 &#45 19 ppb ( n =13, p <0.001). The NO levels remained elevated (282 &#45 21 ppb; p <0.05) when measurements were repeated 20 min after leaving the chamber. The nasal airway resistance (V2 tot ) also increased as a result of the chamber session (from 16 &#45 2° before to 21 &#45 3° after; p <0.05). An increase in NO levels was also found when the experiments were repeated with NO sampled directly from the maxillary sinus (225 &#45 6 before and 265 &#45 9 ppb after; n =6, p <0.001). For control purposes the nasal analyses were repeated again, this time under hyperbaric conditions (+4.9 kPa). This resulted in a slight decrease in the NO levels (from 273 &#45 22 to 241 &#45 17 ppb; n =10, p <0.001), but there was no change in the nasal airway resistance. We conclude that a reduction in sinus pressure, as seen in upper airway allergy or infection, may result in an increase in upper airway NO production.     

A simple objective evaluation and grading for facial paralysis outcomes

Matrix metalloproteinase (MMP)-2 and -9 degrade type IV collagen, which is one of the major components of the basement membrane in normal tissue and expressed in the surroundings of the cancer nest in squamous cell carinoma. The degeneration of type IV collagen is an essential step in the metastasis to lymph nodes and distant organs. In this study, we examined MMP-2 and -9 levels of cancer tissue and serum obtained from patients with head and neck squamous cell carcinoma (HNSCC) in order to evaluate the relationship between the clinicopathologic features and MMPs. We examined the production of MMP-2 and -9 in cancer tissue homogenates of 73 patients who had HNSCC and the serum MMP levels of 16 patients with HNSCC and 8 healthy volunteers. We also studied the localization of MMP-2 in the carcinoma using an immunohistochemical approach. The concentrations of MMP-2 and -9 in the tissue homogenates and serum were measured by means of a sandwich enzyme immunoassay using a monoclonal antibody. Immunohistochemical analyses were performed with monoclonal antibody to MMP-2. The concentration of MMP-2 in the tumor tissue homogenates was unrelated to tumor size, but that in patients with lymph node metastases was significantly higher than in those without lymph node metastases. The concentration of MMP-9 was unrelated to lymph node metastasis and tumor size. The levels of both MMP-2 and -9 in serum were unrelated to lymph node metastasis. Immunohistochemistry indicated that MMP-2 was mainly expressed in cancer cells. Because MMP-2 degrades type IV collagen, the level of MMP-2 in carcinomas may be a useful indicator of the degree of invasion and metastasis.     

A case of cortical deafness and anarthria

The nasal epithelium protects the underlying tissue from damage. Epithelial cell growth is controlled by epidermal growth factor (EGF) and is possibly affected by toxic proteins, e.g. eosinophil cationic protein (ECP). The aims of this study were to examine nasal fluid epithelial cell counts and their relations to EGF, eosinophils and ECP in 23 patients with seasonal allergic rhinitis and 20 healthy controls. Nasal fluid epithelial cell counts were lower in patients than in controls. EGF levels did not differ between patients and controls, and correlated with epithelial cell counts in controls but not in patients. Eosinophils and ECP were higher in patients than in controls, but did not correlate with epithelial cell counts. The role of growth factors, such as EGF, in regulating epithelial cells merits further study.     

Bilateral versus unilateral cochlear implantation in young children

Objectives

To compare the preverbal communication skills of two groups of young implanted children: those with unilateral implantation and those with bilateral implantation.

Material and methods

The study assessed 69 children: 42 unilaterally and 27 bilaterally implanted with age at implantation less than 3 years. The preverbal skills of these children were measured before and 1 year after implantation, using Tait Video Analysis that has been found able to predict later speech outcomes in young implanted children.

Results

Before implantation there was no significant difference between the unilateral group and the bilateral group. There was still no difference at 12 months following implantation where vocal autonomy is concerned, but a strongly significant difference between the groups for vocal turn-taking and non-looking vocal turns, the bilateral group outperforming the unilateral group. Regarding gestural turn-taking and gestural autonomy, there was a strongly significant difference between the two groups at the 12 month interval, and also a difference before implantation for gestural autonomy, the unilateral group having the higher scores. Multiple regression of non-looking vocal turns revealed that 1 year following implantation, bilateral implantation contributed to 51% of the variance (p < 0.0001), after controlling for the influence of age at implantation and length of deafness which did not reach statistical significance.

Conclusions

Profoundly deaf bilaterally implanted children are significantly more likely to use vocalisation to communicate, and to use audition when interacting vocally with an adult, compared with unilaterally implanted children. These results are independent of age at implantation and length of deafness.     

Otolaryngologists may not be doing enough to diagnose pediatric eosinophilic esophagitis

Objective

To systematically evaluate the diagnosis of eosinophilic esophagitis (EE).

Methods

A retrospective review of 657 patients seen at the EE center of a tertiary care children's hospital between 1994 and 2007 was performed. Charts were reviewed for the 144 patients who were also seen by the otolaryngology service.

Results

One hundred forty-four patients received 193 otolaryngology-related diagnoses. Eustachian tube dysfunction (27.5%) and sleep disordered breathing (24.9%) were the most common, followed by dysphagia (13.0%), rhinosinusitis/nasal congestion (9.3%) and airway stenosis (5.2%). Seventy-nine patients (54.9%) had a pre-existing diagnosis of EE at the time of their otolaryngology consultation. Twenty-one patients (14.6%) were referred to the gastroenterology service for evaluation for EE. Forty-four patients (30.5%) remained undiagnosed. Twenty-five of these patients presented with dysphagia, 16 of whom were not previously diagnosed with EE; only 4 of these 16 patients were referred for evaluation for EE. In one case, a child with moderate sized tonsils underwent adenotonsillectomy for dysphagia and failure to thrive; this patient was diagnosed with EE 1 month post-operatively.

Conclusions

Twenty percent of patients with EE may require care by an otolaryngologist for a myriad of complaints. Even experienced pediatric otolaryngologists may not recognize this condition. Otolaryngologists should consider EE in patients presenting with dysphagia. A careful gastroenterology review of symptoms may also allow otolaryngologists to identify EE in patients with allergy mediated nasal complaints, or laryngeal/airway disorders.     

Correction of the Glosso-Larynx and Resultant Positional Changes of the Hyoid Bone and Cranium

In ankyloglossia with deviation of the epiglottis and larynx (ADEL) the tongue is located forward and as a result the epiglottis is elevated and leans towards the mouth. The larynx is also raised and curves ventrally. Various symptoms have been observed as a result of this condition. Correction of the glosso-larynx (CGL) is the operation performed to treat ADEL. The CGL procedure and the results obtained with it are reported in this paper. In addition, we studied the following six parameters using head and neck X-rays before and after CGL (the changes in these parameters as a result of CGL are shown in parentheses): ( i ) the shortest vertical length between the hyoid bone and mandible (+10.3 mm); ( ii ) the vertical length between the hyoid bone and the tangent line of C2-4 (+4.6 mm); ( iii ) the shortest length between the hyoid bone and the chin (+2.9 mm); ( iv ) the angle between the hyoid bone and the tangent line of C2-4 (+3.3°); ( v ) the length of H-M, where H is the intersection of a tangent line of C2-4 and a vertical line from the hyoid bone and M is the intersection of a tangent line of C2-4 and the mandible (+7.4 mm); and ( vi ) the width of the narrowest part of the hypopharynx (+3.0 mm). The changes in all the measured parameters after CGL were significantly different ( p <0.05).     

Autoimmunity in Sudden Sensorineural Hearing Loss: Possible Role of Anti-endothelial Cell Autoantibodies

In order to verify whether anti-endothelial cell autoantibodies (AECAs) can be used as serological markers of inner ear vasculitis in sudden sensorineural hearing loss (SSHL), 32 patients affected by idiopathic SSHL were investigated. All patients underwent a routine general physical examination and extensive audiovestibular, microbiological and immunological investigations. Fourteen normal subjects without a history of HL, autoimmune or metabolic disease served as controls. Detection of AECAs was performed using an indirect immunofluorescence technique. AECA-positive patients were treated with methylprednisone, while AECA-negative patients were treated with a combined regimen of steroids, plasma expander and aspirin. The average hearing recovery for 5 frequencies (0.25-4 kHz) was analyzed in each subject 1 month after treatment and every 3 months thereafter; median follow-up was 12 months (range 9-18 months). A total of 15/32 patients (46.8%; 11/19 females, 4/13 males) were AECA-positive and thus differed significantly from the normal population in whom only 2/14 tested cases were positive ( p =0.03). Severe hearing loss was associated with being AECA-positive in 8/11 cases. During follow-up, 25/32 patients improved their hearing and 17 of these patients were AECA-negative. The seven cases without hearing improvement were all AECA-positive. In patients with SSHL, immune-mediated vascular damage may have a pathogenetic role and AECAs may represent a serological marker of vasculitis even if they are not inner ear-specific and even if they represent an epi-phenomenon rather than the only cause of SSHL.     

Carcinoma of the Nasopharynx: Analysis of Treatment Results in 91 Patients

The outcome of 91 patients (69 males, 22 females; age range 16-82 years) with nasopharyngeal carcinoma treated in our hospital between 1971 and 1999 was evaluated. Factors that appeared to influence prognosis were assessed using the Kaplan -Meier method. The cause-specific cumulative 5-year survival rate for the entire study population was 61.2%. The 1997 International Union Against Cancer classification was used for disease staging. The 5-year survival rates were as follows: 66.7% ( n ¾ 3) for Stage I; 100% ( n ¾ 2) for Stage IIA; 90.9% ( n ¾ 11) for Stage IIB; 78.8% ( n ¾ 25) for Stage III; 53.0% ( n ¾ 29) for Stage IVA; 37.5% ( n ¾ 16) for Stage IVB; and 20.0% ( n ¾ 5) for Stage IVC. The disease-free cumulative 3-year survival rates of the patients classified based on initial therapy were as follows: radiation alone, 50.0% ( n ¾ 28); combined radiotherapy and chemotherapy that included an undefined anti-cancer drug, 67.2% ( n ¾ 39); combined radiotherapy and chemotherapy that included carboplatin (CBDCA), 92.3% ( n ¾ 19). These results showed a statistically significant difference ( p ¾ 0.043; log-rank test). Stage IVC patients were excluded from the analysis. We conclude that combined therapy, including chemotherapy with CBDCA, is necessary for the treatment of nasopharyngeal carcinoma. In terms of radiation therapy, a field covering the bilateral cervical regions seemed to produce favorable results, even if cervical node metastasis was not confirmed by palpation at the first hospital visit.     

Treatment Effects in Patients with Squamous Cell Carcinoma of the Oral Cavity

A total of 221 patients (155 males, 66 females; stage I, n ¾ 55; stage II, n ¾ 58; stage III, n ¾ 57; stage IV, n ¾ 51) with squamous cell carcinoma of the oral cavity were studied. Tumor localization was as follows: cancer of the tongue, n ¾ 161; cancer of the oral floor, n =28; cancer of the hard palate, n ¾ 12; cancer of the buccal mucosa, n ¾ 11; and cancer of the gingiva, n ¾ 9. In order to compare the effect of different treatments, three major treatment groups were defined, namely a surgery group, a radiotherapy group and a combination treatment group. Five-year cumulative survival rates showed significant differences between stage classifications (stage I=91%, stage II=73%, stage III=63%, stage IV=47%; p <0.01) but not between tumor sites. The 5-year cumulative survival rate was highest for oral floor cancer (80%). In the early-cancer group, the 5-year cumulative survival rate for the surgery group (92%) was significantly higher ( p <0.05) than those for both the radiation (69%) and combination (71%) groups. In the advanced-cancer group, the 5-year cumulative survival rate for the surgery group (74%) was significantly higher ( p <0.05) than those for both the radiation (37%) and combination (51%) groups. No significant difference in regional control rates was observed between the treatment groups. Five-year regional control rates were 86% for cervical untreated patients with T1N0 tumors and 60% for cervical untreated patients with T2N0 tumors. Fourteen N0 cases were treated with neck dissection. Cervical metastasis was found pathologically in 2/14 (14%) of these cases. The 5-year survival rate for patients with cervical recurrences after primary tumor resection was 70% ( n ¾ 15). In contrast, the 5-year survival rate for patients with both primary tumor resection and neck dissection was 74% ( n ¾ 14) but no significant difference was observed between these 2 groups.rate .     

One‐stop neck lump clinic: phase 2 of audit. How are we doing?

One‐stop neck lump clinic: phase 2 of audit. How are we doing? Regular monitoring and audit of a service are integral to ensuring maintenance of efficiency and standards. This is particularly important where the quality of the service is operator dependent, as is the case in the clinical diagnosis of neck lumps and fine needle aspiration cytology. The one‐stop neck lump clinic has now been running in the department for more than 20 months. A previous article described the results of the first phase audit carried out at 6 months and had identified a waiting time to be seen that was longer than that recommended by the British Association of Otorhinolaryngologists, Head and Neck Surgeons. Measures were implemented to reduce this waiting time and a second audit was carried out after another 10 months with the aims of assessing if modification of the means of referral reduces waiting time and if the outcomes of clinical performance in phase 1 could be maintained or improved. We discuss the results of phase 2 in the audit spiral.