不同术式喉部分切除术后患者发声功能观察

目的探讨不同术式喉部分切除术后喉癌患者发声功能。方法 60例喉癌患者根据术式分为环状软骨上喉部分切除-环舌骨吻合术(supracricoid partial laryngectomy-cricohyoidopexy,SCPL-CHP)组22例、喉声门上水平部分切除术组14例、喉垂直部分切除术组24例。采用Dr.Speech嗓音分析软件,对20例正常人(对照组)及三组喉癌患者分别于术后1年进行发声功能测试,对测得的基频(F0)、基频微扰(jitter)、振幅微扰(shim-mer)、标准化噪声能量(NNE)进行比较分析,同时行GRBAS嗓音主观评估,判断受试者嗓音质量。结果三组喉癌患者术后F0较正常对照组低,jitter、shimmer、NNE均较正常对照组高。Jitter、shimmer、NNE数值由低到高依次为喉声门上水平部分切除术组、喉垂直部分切除术组、SCPL?CHP组。GRBAS嗓音主观评估与嗓音声学分析指标除F0外均有相关性(P<0.01)。结论喉声门上水平部分切除术后患者的嗓音功能恢复最佳,而SCPL?CHP组相对较差。嗓音声学分析可作为评价喉癌术后发声质量的客观指标,GRBAS可作为分析患者术后社会交流能力障碍程度的主观指标,两者之间有一定相关性。     

喉部分切除术后患者的嗓音功能观察

目的 研究喉癌患者喉部分切除术后嗓音功能情况及变化趋势,以探讨不同术式与患者术后嗓音质量的关系.方法 应用计算机嗓音声学测试系统(Dr.Speech Science for Windows软件,美国泰亿格公司产品)对30例正常对照者及55例喉部分切除术患者(其中喉声门上水平部分切除术组20例,喉垂直部分切除术组18例,喉扩大垂直切除术组17例),于术后5年内不同时间进行嗓音声学测试,并对所测得的平均基频(F0)、基频微扰(jitter)、振幅微扰(shimmer)、标准化噪声能量(NNE)、第一共振峰频率(F1)、第二共振峰频率(F2)进行比较分析.结果 三种术式F0均较正常对照组低,jitter、shimmer、NNE均较正常对照组高.jitter、shimmer、NNE数值由低到高排列依次为喉声门上水平部分切除术组、喉扩大垂直切除术组、喉垂直部分切除术组.喉声门上水平部分切除组/a:/、/i:/、/u:/的第一共振峰频率明显高于正常对照组.结论 喉水平部分切除术后嗓音功能恢复最佳,而喉垂直部分切除术后最差.嗓音声学分析可作为评价喉癌术后发声质量的定量指标,有助于针对性地指导患者术后嗓音康复训练.     

声带息肉患者术后声休方案探讨

目的探讨声带息肉患者喉显微手术后声休方案。方法85例声带息肉患者随机分为两组,A组48例,B组37例,均在显微支撑喉镜下行声带息肉切除术,A组术后严格声休1周,B组术后严格声休2周,其余治疗相同。两组均于手术前和手术后1、2、3、4周行嗓音基频微扰（jitter）、振幅微扰（shimmer）、噪谐比（NHR）检测和纤维喉镜检查,比较两组术后发声功能及声带手术创面恢复情况。结果术后1周时A、B两组jitter、shimmer、NHR值均与术前比较差异无统计学意义（P＞0．05）;术后2周时,A组仅jitter较术前降低（P＜0．05）,shimmer、NHR值仍与术前无差异,而B组jitter、shimmer、NHR值均较术前降低（P＜0．05）,且B组shimmer值较 A组低（P＜0．05）;术后3周时B组jitter、shimmer、NHR值均低于A组;术后4周时两组jitter、shimmer、NHR值均恢复至正常水平。纤维喉镜检查显示术后1周时两组患者术侧声带均有不同程度充血水肿,部分患者创面可见少许伪膜;术后2周时声带充血水肿逐渐消退,伪膜脱落;至术后4周时,两组患者术侧声带外观完全恢复正常。结论声带息肉患者术后2周应严格声休,术后3～4周应相对声休,以利于声带创面的愈合及发声功能的恢复。     

声带小结及声带局部肥厚患儿嗓音声学及电声门图分析

目的 研究声带小结、声带局部肥厚患儿及正常儿童嗓音声学及电声门图参数之间的差异,为临床诊治提供依据.方法对342例正常儿童及76例声带局部肥厚患儿、52例声带小结患儿进行嗓音声学测试及电声门图分析,对三组参数进行方差分析并作两两比较.结果声带小结与声带局部肥厚患儿的嗓音声学分析的标准化噪声能量（NNE）与基频方差（SDFo）无显著差异,频率微扰（jitter）、振幅微扰（shimmer）在两组间差异有显著统计学意义;声带小结与声带局部肥厚患儿的电声门图频率微扰（jitter）、振幅微扰（shimmer）差异无统计学意义,NNE和SDFo在两组间差异有统计学意义.结论 jitter、shimmer、NNE、SDFo四项参数在区分正常嗓音和病理性嗓音时非常重要而且非常敏感;在病理性嗓音中以上四项参数各有异同;嗓音声学参数较电声门图参数更有意义.     

喉软骨开窗式喉部分切除术治疗T2-3声门型喉癌

目的探讨喉软骨开窗式喉部分切除术治疗T2—3声门型喉癌的手术效果及其价值。方法2000年10月至2006年12月采用喉软骨开窗式喉部分切除并同时行喉结构及其功能重建术治疗经适当选择的48例T2—3声门型喉癌，其中男29例，女19例；年龄43～78岁，中位年龄57．0岁。在术前及术后6个月作声嘶程度的听觉心理评价，观察双侧声带的活动度、对称性、平静呼吸时声门宽度和发声时声门闭合程度，评价呼吸和吞咽功能情况；随访肿瘤的复发、转移情况以及患者的生存时间。结果全部患者顺利拔管，切口均甲级愈合，无手术并发症。患者术后6个月时与术前相比，除声带的活动度外（P=0．343），声嘶程度的听觉心理评价（P值均〈0．01）、声带的对称性（P=0．000）、平静呼吸时声门宽度（P：0．001）、发声时声门闭合程度（P=0．001）、呼吸功能（P=0．001）的差异均有显著性统计学意义，术后吞咽功能不受影响（P=0．310）。术后喉狭窄1例，复发1例，复发率2．1％；颈淋巴转移1例，肝转移1例；死亡2例。Kaplan—Meier法计算3年和5年生存率分别为96．9％、88．9％。结论喉软骨开窗式喉部分切除术治疗经适当选择的T2—3声门型喉癌，可有效减小创伤并利于患者的呼吸及发声功能的恢复。     

喉部分切除喉功能重建术

目的探讨喉部分切除术治疗声门型、声门上型喉癌的疗效和功能恢复。方法对我院1992年7月--2003年8月间喉癌行喉部分切除喉功能重建术的32例（占同期喉癌手术59．2％）临床资料进行总结和随访。其中声门型喉癌23例，声门上型喉癌9例；行喉裂开声带切除术室带下移修复术5例，垂直喉部分切除带状肌修复14例。垂直喉部分切除会厌修复3例，扩大垂直喉部分切除环舌根会厌吻合术1例，声门上水平部分喉切除术7例，扩大声门上水平部分喉切除术舌根修复2例。结果1、3、5年生存率分别为96．9％（31／32）、87．0％（20／23）、72．2（13118）。总拔管率为90．6（29／32）。全部病例恢复经口进食，一经拔管均能发音。术后复发率为12．5％。结论喉部分切除术不仅是喉癌根治的有效术式，而且同时可以较好地保留喉的生理功能，提高患者术后的生活质量。     

声带小结者嗓音分析和电声门图参数变化的比较

目的比较分析声带小结者嗓音参数和电声门图（EGG）参数的变化，评价这些参数在该病的诊断和疗效观察中的意义。方法采用Dr．SpeechScienceforWindows软件对42例未经手术的声带小给患者作嗓音分析和EGG检测，对其主要声学参数变化进行比较，并对声带小结的EGG波形作了观察。结果在声带小结的诊断中，两种方法中的声学参数基音频率微扰（jitter）和基音振幅微扰（shimmer）均是有价值的，二者可以相互替代。EGG的标准声门噪声能量（NNE）特异性高，嗓音分析中的NNE则敏感性高。结论EGG中声门波的特征结合嗓音分析及EGG的jitter和shimmer值对声带小结的诊断和疗效观察有较大的意义。     

经口CO2激光治疗早期声门型喉癌术后嗓音分析

目的探讨经口CO2激光手术治疗早期声门型喉癌术后的嗓音情况。方法回顾分析2016年3月—2019年6月接受经口CO2激光手术治疗的48例声门型喉癌患者嗓音资料,根据手术是否切除前连合分为未切除前连组合（n=29）和切除前连合组（n=19）。分别于手术前和手术后6个月的嗓音稳定期对患者进行主观嗓音障碍指数量表简化中文版（VHI 13）评分、频闪喉镜检查及嗓音声学分析。结果经口CO2激光手术后6个月检查VHI 13生理评分及总分均较手术前明显减低;频闪喉镜检查未切除前连合组以声带黏膜波减弱或消失为主要表现,而切除前连合组术后出现前连合粘连和室带代偿性发音的比例明显升高;嗓音声学分析发现,与术前比较,激光手术后基频（F0）增加,基频微扰(jitter)和振幅微扰(shimmer)增大,最长发声时间(MPT)缩短,嗓音障碍严重指数（DSI）减低;未切除前连合组患者振幅微扰较切除前连合组更低,最长发生时间更长,DSI更高。结论声门型喉癌经口CO2激光手术后患者的主观嗓音质量较术前有一定程度的改善,是否切除前连合与术后声带形态、嗓音质量有密切关系。     

胸舌骨肌瓣或舌骨-胸舌骨肌瓣用于垂直喉部分切除术后声带重建

目的：探讨垂直喉部分切除术后改善发声，恢复喉功能的修复手段，以提高喉癌患者术后的生存质量。方法：垂直喉部分切除术后，用患侧甲状软骨外膜修复上半喉腔缺损，取健侧胸舌骨肌瓣（或舌骨－胸舌骨肌瓣）修复下半喉腔缺损并重建声带。结果：修复的新喉腔呈三角形，重建的声带具有一定的张力并参与发声，恰似一侧居于正中位麻痹的声带，发声时由健侧声带代偿运动与新声带前2／3相互靠近。93．4％的患者发声近乎正常或自觉发声质量较术前明显好转。结论：垂直喉部分切除术后采用患侧甲状软骨外膜和健侧胸舌骨肌瓣（或舌骨－胸舌骨肌瓣）修复缺损并重建声带，方法简单，取材方便，创伤小，效果满意，可作为垂直喉部分切除术后声带重建的首选方法。     

老年喉形态学改变与嗓音变化之间的关系

目的探讨老年喉形态学改变与嗓音变化之间的关系。方法对54例60岁以上健康老年人（男性29例，女性25例）的喉形态改变与嗓音声学特征进行了观察分析。健康青年对照组为21—22岁在校大学生46例，男女各23例。结果老年男性声带萎缩16例（55．2％），声门闭合不良18例（62．1％），声门下黏膜水肿16例（55．2％），室带超越（指发音时室带遮盖声带的部分或全部）12例（41．4％）。老年女性杓间区水肿15例（60．0％），声门闭合不良14例（56．0％），声带萎缩12例（48．0％），声带水肿8例（32．0％）。老年嗓音男性基频升高、女性基频下降，频率微扰、振幅微扰及噪谐比增大，嗓音的颤抖强度指数增加，特别是老年男性嗓音具有软发声特征。除老年女性频率微扰、振幅微扰及软发声指数升高无统计学意义外，其他参数与健康青年对照组比较，两者之间的差异均有统计学意义（P值均小于0．05或0．01）。结论老年人在喉形态和嗓音声学特征上均出现了明显变化，除声带萎缩、声带水肿外，声门下黏膜水肿与杓间区水肿的发生率也很高。     

Outcome of the treatment for laryngeal carcinoma by partial laryngectomies

The aim of the study was to retrospectively evaluate the results of treatment for early laryngeal carcinoma in a group of 325 patients who underwent from 1980 to 1997 partial laryngectomies. The most often type of operation was cordectomy--51.1%, then frontolateral/frontoanterior laryngectomy--20.9%, vertical laryngectomy--15.1%, supraglottic horizontal laryngectomy--8%, hemilaryngectomy--4.9%. Estimate of survival time, from surgery to first oncologic failure, was obtained with the life-table method. As a failure we considered local and regional recurrence, distant metastasis, second primary neoplasm and spread of disease. The probability of disease-free survival for all partial laryngectomies reached 81.5%, 79.5% and 60.3% at 3, 5 and over 5 years, respectively. The rates of five-year and over 5 year disease-free survival for each type of operation were: for cordectomy--82.3% and 72.3%, for frontolateral/frontoanterior laryngectomy--74.0% and 45.2%, for vertical laryngectomy--87.6% and 60.6%, for hemilaryngectomy--86.2% and 59.7%, for supraglottic horizontal laryngectomy--53.8% and 29.9%, respectively. The comparison between survival rates, by the log-rank test, revealed statistical difference between supraglottic horizontal laryngectomy and following operations: cordectomy (p < 0.001), vertical laryngectomy (p < 0.01), hemilaryngectomy (p < 0.05). The differences between other types of laryngectomy were not significant statistically. The best results in treatment of laryngeal carcinoma by partial laryngectomies were achieved by operations in vertical plane (cordectomy, vertical laryngectomy and hemilaryngectomy), the less positive--by operations in horizontal plane (supraglottic horizontal laryngectomy).     

Quality of life, functional outcome, and voice handicap index in partial laryngectomy patients for early glottic cancer

BACKGROUND: In this study, we aim to gather information about the quality of life issues, functional outcomes and voice problems facing early glottic cancer patients treated with the surgical techniques such as laryngofissure cordectomy, fronto-lateral laryngectomy, or cricohyoidopexi. In particular, consistency of life and voice quality issues with the laryngeal tissue excised during surgery is examined. In addition, the effects of arytenoidectomy to the life and voice quality are also studied. METHODS: 29 male patients were enrolled voluntarily in the study. The average age was 53.9 years. Three out of 10 patients with laryngofissure cordectomy also had arytenoidectomy. 11 patients had fronto-lateral laryngectomy with Tucker reconstruction, two of which also had arytenoidectomy. There were eight patients with cricohyoidopexi and bilateral functional neck dissection. Three of these patients also had arytenoidectomy. In bilateral functional neck dissection cases, spinal accessory nerve was preserved and level V of the neck was not dissected. None of the patients had neither radiotherapy nor voice therapy. Cordectomy patients never had a temporary tracheotomy or were connected to a feeding tube. Data was collected for 13 months for the cordectomy group, 14 months for fronto-lateral laryngectomy and cricohyoidopexi groups on average post-operatively. Statistical analysis in this study was carried out using the one-way analysis of variance, and the Post-Hoc group comparisons were made after Bonferroni and Scheffe-procedures.In order to determine the effects of arytenoidectomy, a regression analysis is carried out to see if there are statistical differences in answers given to the survey questions among patients who were arytenoidectomized during their surgeries. RESULTS: There was a statistically significant difference between cordectomy and cricohyoidopexi group in answers to the University of Washington- Quality of Life- Revised survey part 1. (p = 0). A statistically significant difference was also established between cordectomy and fronto-lateral laryngectomy groups, as well as between cordectomy and cricohyoidopexi groups in answers to the University of Washington- Quality of Life- Revised survey part 2. (p = 0,036 and p = 0.009, respectively). Cricohyoidopexi group has given the lowest scores and the cordectomy group has given the highest scores in three survey questions representing the quality of life, performances and new voices. These ranges are also consistent with the laryngeal tissue excised during surgery (cricohyoidopexi > fronto-lateral laryngectomy > cordectomy). There was no statistically significant difference between groups in Performance Status Scale for Head and Neck cancer patients instrument. The difference between the Voice Handicap Index and Voice Handicap Index (functional); Voice Handicap Index (physical) and Voice Handicap Index (emotional) scores in three patient groups was not significant either. All of the patients evaluated that their new voices have similar functional, physical and emotional impact on their life. Decanulation and oral feeding times of cricohyoidopexi and fronto-lateral laryngectomy patients are found to be significantly longer than cordectomy patients. Lastly, the removal of arytenoid does not have any significant adverse effects on the quality of life, the functional outcomes, or the quality of voice. CONCLUSION: In the present study, all patients with early glottic cancer, treated with different surgical technics reported fairly good quality of life outcomes, functional results and voice qualities. This study also finds that the removal of arytenoid does not have any adverse effects on the quality of life and voice from the patients' point of view.     

喉部分切除术的远期疗效观察

目的　观察喉部分切除术的远期疗效及喉功能的恢复情况。方法　总结 1986～ 1995年间各种喉部分切除术 379例 ,男 2 90例 ,女 89例。声门上癌 184例 (按 1992年UICC标准T1 8例 ,T2115例 ,T348例 ,T413例 ) ,声门癌 192例 (T1 115例 ,T2 6 3例 ,T313例 ,T41例 ) ,跨声门癌 3例 (T2 1例 ,T32例 )。共 8种术式 ,即声带切除术 2 6例 ,垂直部分切除术 138例 ,额侧切除术 7例 ,声门水平 (喉中段 )切除术 12例 ,声门上水平部分切除术 5 8例 ,水平垂直 ( 3 4)部分切除术 95例 ,喉次全切除环舌根会厌吻合术 2 4例 ,喉近全切除环舌根吻合术 (保留一侧杓状软骨 ) 19例。同期颈廓清术 193例 (单侧12 1例 ,双侧 72例 )。结果　全部病例恢复发音功能。 7～ 2 3d全部克服误咽拔掉鼻饲管 ,36 2例在术后 9d～ 3个月拔除套管 ,另 8例经二次手术修整拔除气管套管 ,拔管率为 97 6 %。 3、5、10年生存率分别为 86 8% ( 32 9 379)、81 3% ( 2 6 6 32 7)、6 9 4% ( 12 0 173)。结论　喉部分切除术是保存喉功能的根治性手术。严格掌握手术适应证、正确选择术式、熟练的手术技巧及完善的修复技术是提高生存质量及疗效的根本。     

喉部分切除术的远期疗效观察

目的 观察喉部分切除术的远期疗效及喉功能的恢复情况。方法 总结１９８６～１９９５年间各种喉部分切除术３７９例,男２９０例,女８９例。声门上癌１８４例（按１９９２年ＵＩＣＣ标准Ｔ１８例,Ｔ２１１５例,Ｔ３４８例,Ｔ４１３例）,声门癌１９２例（Ｔ１１１５例,Ｔ２６３例,Ｔ３１３例,Ｔ４１例）,跨声门癌３例（Ｔ２１例,Ｔ３２例）。共８种术式,即声带切除术２６列,垂直部分切除术１３８例,额侧切除术７例,声     

205例喉癌的手术方式与远期疗效分析

目的分析1990年以来喉癌手术治疗的方法及其远期疗效，以改进治疗并提高生存率。方法对1990年1月-2004年10月间手术治疗的205例病例进行临床随访、病历资料分析。其中声门上型52例，声门型149例，声门下型4例；按UICC 1997年分期标准Ⅰ期48例，Ⅱ期88例，Ⅲ期44例，Ⅳ期25例。行支撑喉镜下声带切除术1例，撕皮术2例，喉裂开声带切除术9例，未行气管切开的喉垂直部分切除术16例，喉垂直部分切除术25例，水平半喉切除术7例，Arslan（咽气管吻合）手术15例，环舌骨会套固定术（criicohyoidoepidottopexy，CHEP）57例，喉次全切除术16例，喉全切除术57例。结果205例仅4例失访，Kaplan—Meier法统计总的1年生存率96．0％，3年生存率84．8％，5年生存率为79．4％，其中声门上型1年生存率88．3％，3年为67．5％，5年为65．0％；声门型1年生存率99．3％，3年为91．3％，5年为84．7％，喉功能保存率72．7％。早期肿瘤（Ⅰ、Ⅱ期）与晚期肿瘤（Ⅲ、Ⅳ期）患者之间生存率差异有统计学意义（P〈0．01），肿瘤不同发病部位（声门型、声门上型）患者之间生存率差异有统计学意义（P〈0．05）。结论喉癌手术治疗效果好，喉功能保存率高，其预后与肿瘤分期、发病部位有关。提倡严格掌握手术指征，在保证手术安全边缘的情况下，制定个体化治疗方案，运用最优的手术切除和功能重建方法，综合治疗，提高生存质量。     

Psychosocial adjustment after laryngeal cancer surgery.

The objective of the study was to assess the psychosocial adjustment of 111 patients, and 87 partners, after laryngeal cancer surgery. Sixty-nine patients were grouped as having had radical surgery (total or near-total laryngectomy), and 30 as having had functional surgery (horizontal supraglottic laryngectomy or cordectomy). The Psychosocial Adjustment to Illness Scale Self Report questionnaire was used as the primary outcome. No significant differences were found between groups when global adjustment or domain adjustment was compared. Patient and partner responses were almost identical. Work and family relationships were the domains with poorest adjustment for both patients and partners. Information about treatment expectations was negatively rated by functional surgery patients, especially by those who underwent a cordectomy. We conclude that patient perspectives should be considered and consulted to 1) evaluate patient opinion about treatment results, 2) identify patients with special support needs, and 3) inform patients according to other patients' priorities, based on their experience.     

梨状窝粘膜修复喉部分切除术后的粘膜缺损

目的 :探讨应用梨状窝粘膜修复喉部分切除术后粘膜缺损及恢复喉功能的效果。方法 :对 198例患者施行此术式 ,其中喉水平部分切除术 87例、喉垂直部分或扩大喉垂直部分切除术 6 5例、喉水平加垂直部分切除术 4 6例。同时进行随访观察。结果 :喉水平部分切除术者拔管率为 10 0 % ;术后发音、呼吸、吞咽功能恢复好 ;5年生存率为 84 .7%。喉垂直部分或扩大喉垂直部分切除术拔管率为 87.7% ;5年生存率 86 .2 % ;术后吞咽、呼吸功能恢复好 ,但有声音嘶哑。喉水平加垂直部分切除术后初期进食呛咳较重 ,训练适应时间较长 ,拔管率为82 .6 % ;5年生存率为 78.3% ;术后声音嘶哑 ,部分患者喉狭窄导致拔管困难。结论 :本方法操作简单 ,取材方便 ,手术时间较短 ,成活率高 ,术后喉功能保留好 ,患者的 5年生存率高。     

Phonatory mechanisms after vertical partial laryngectomy with glottic reconstruction by false vocal fold flap

A prospective randomized study was designed to compare phonatory mechanisms in patients treated with frontolateral partial laryngectomy (FLPL) with or without glottic reconstruction with false vocal fold (FVF) mucosal flap. Objective voice assessment was based on computerized acoustic recordings and videolaryngostroboscopy performed before, 1 year after, and 2 years after surgery. Phonatory mechanisms were studied according to the surgical technique and correlated with acoustic recordings. The results showed that supraglottic structures participated in laryngeal closure and voice production in 80% of cases in which a standard FLPL was performed. The FVF mucosal flap was involved in both laryngeal closure and voice production in 54% of patients treated with glottic reconstruction. The type of laryngeal closure (glottic or supraglottic) statistically influenced the acoustic measurements. As glottic closure is more frequent in patients treated with glottic reconstruction, the authors recommend performing reconstruction of the glottis with an FVF mucosal flap when an FLPL is indicated.     

Study on vibration mode of different phonatory source and compensation after partial laryngectomy]

OBJECTIVE: To investigate the nature of pathological voice production and compensatory mechanism after partial laryngectomy. METHODS: Vocal function of 93 cases following partial laryngectomy (28 cases of horizontal partial laryngectomy, 35 vertical partial laryngectomy, 30 horizontal-vertical partial laryngectomy) were examined by acoustic analysis, aerodynamic analysis and videostroboscopic examination. RESULTS: Horizontal supraglottic laryngectomy(HL) resulted in slight dysphonia after operation. The cover of vocal fold was hypertrophic and edematous. Mucosa wave was increased. Acoustic analysis showed significant difference between normal and horizontal laryngectomy groups(P < 0.05). Vertical laryngectomy(VL) resulted in moderate-severe dysphonia. Acoustic analysis was significantly worse in VL than in normal group(P < 0.01). The nonglottic phonatory source was the contralateral ventricular fold or contralateral vestibular mucosa (arytenoid mucosa, root mucosa of glottis) to approximate the reconstructed flap. It was noted that contralateral vocal fold did not participate in vibration. Horizontal-vertical partial laryngectomy (HVL) resulted in moderate-severe dysphonia. Acoustic analysis of HVL was significantly worse than that of normal phonation(P < 0.01). The site of compensatory mucosa vibration upon phonation was the contralateral vocal fold or contralateral hypertrophic arytenoid mucosa. The thinner the flap, the better the vocal quality was. Vocal quality of VL was worse than that of HVL in regard to shimmer, jitter, normalized noise energy, maximal phonation time and harmonic-noise ratio, but there was no significant difference between them. CONCLUSIONS: Partial laryngectomy has different vibrating compensatory modes: Voice function of horizontal partial laryngectomy was the best as it preserved the normal vibration mode; vertical partial laryngectomy was the worst with the nonglottic vibrating source of reconstructed flap-ventricular fold. The reconstructed flap, ventricular fold, mucosa of epiglottis and arytenoid take predominantly part in neoglottal vibration. The situation, volume and pliability characteristic of reconstructed flap was also important to vocal quality.     

喉部分切除术后不同声源振动模式转换与代偿研究

目的研究喉部分切除术后喉的振动源变化及声带振动模式的代偿、转归,以探讨嗓音功能保留情况. 方法研究93例喉部分切除术患者(28例水平喉部分切除、35例垂直喉部分切除、30例3/4喉部分切除)及50例健康对照者不同嗓音声学、气流动力学及频闪喉镜下喉功能特点. 结果水平喉部分切除术后声带对称、表层肥厚,粘膜波活跃,嗓音声学参数与正常差异有显著性(P<0.05).垂直喉部分切除患者为非声门源振动发音,新振动体为健侧室带与对侧修复肌瓣或修复肌瓣与喉前庭粘膜(杓区、会厌根粘膜)振动发音,健侧声带未参与,嗓音声学参数与正常差异有极显著性(P<0.01).3/4喉部分切除后为部分非声门源振动发音,代偿振动模式为修复肌瓣与健侧声带振动发音和修复肌瓣与健侧杓区肥厚粘膜形成振动体颤动发音2种,嗓音声学参数与正常差异有显著性(P<0.01).3/4喉部分切除与垂直喉部分切除比较后者嗓音声学参数略差,但无统计学意义. 结论在喉部分切除术中,水平喉部分切除术后嗓音功能最佳,而垂直喉部分切除术后最差;修复体形态、功能特性直接影响术后效果.手术修复过程应充分利用机体的代偿功能,使术后声音质量有所提高.