T1声门癌CO2激光声带切除深度的探讨

目的:探讨内镜CO2激光声带切除术治疗T1声门型喉癌是否应常规切除甲杓肌.方法:回顾性分析内镜CO2激光治疗T1声门型喉癌57例患者的临床和病理资料.其中Tis 7例,T1a 47例,T1b3例;声带切除术Ⅰ、Ⅱ型9例,Ⅲ、Ⅳ、Ⅴ型48例.将48例包括甲杓肌的声带切除标本病理切片进行重新阅片.生存率的计算用Kaplan-Meier方法.结果:随访4～119个月(平均41.5个月),死亡4例,失访8例,5年生存率89.1%,5年疾病别生存率96.3%,5年无瘤生存率78.1%.局部复发10例(17.5%),颈部转移1例,甲杓肌受侵5例(8.8%).挽救手术包括:喉部分切除术6例,喉全切除术3例,颈淋巴结清扫术1例,喉全切除术及颈淋巴结清扫术1例.术后放疗2例.喉保存率93.0%(53/57).结论:T1声门癌可侵及甲杓肌,内镜CO2激光声带切除治疗T1声门癌时,甲杓肌的切除应根据术前和术中肿瘤的范围和侵润深度,分别实施不同类型的切除.正确判断肿瘤的范围和甲杓肌受侵深度有助于减少术后局部复发和提高发声质量.     

喉声门型癌声门下受侵与外科治疗选择

目的探讨喉声门型癌声门下受侵合适的外科治疗方式。方法回顾性分析102例喉声门型癌声门下受侵患者的局部声门下受侵范围及所行手术方式。根据受侵范围,将患者分为两组。第一组为声门下受侵在声带游离缘下0.5cm～1.0cm之间,第二组为声门下受侵达声带游离缘下1.0cm以上。分析比较两组患者的不同手术方式的3年无瘤生存率及淋巴结转移率。结果102例喉声门型癌声门下受侵患者总的3年无瘤生存率为58.8%。两组的生存率分别为66.7%(22/33)、55.1%(38/69)。第一组病例喉全切除术、喉近全切除术、喉部分切除术的生存率分别为60.0%(6/10)、2/2、66.7%(14/21);第二组病例喉全切除术、喉近全切除术、喉部分切除术的生存率分别为58.7%(27/46)、50.0%(6/12)、45.5%(5/11)。本资料两组患者的淋巴结阳性率分别为6.1%(2/33)、15.9%(11/69)。淋巴结阳性与阴性患者的生存率分别为23.1%(3/13)、64.0%(57/89)。结论声门下受侵是影响喉声门型癌预后的一个较为重要因素。喉声门型癌声门下受侵患者,声门下受侵范围未超过声带游离缘下1.0cm,如无其它禁忌证,应行喉部分切除术;声门下受侵范围超过声带游离缘下1.0cm,应考虑行喉全切除术。淋巴结转移是影响声门下受侵喉声门型癌的重要因素,随着声门下受侵范围的增大,淋巴结转移率也随之增高。     

梨状窝癌向邻近组织结构侵犯规律的组织病理学研究

目的探讨梨状窝癌侵犯邻近组织的规律。方法对68例梨状窝癌全喉或部分喉及下咽切除整体标本连续切片进行组织病理学研究。结果68例梨状窝癌中室、声带水平声门旁间隙受侵分别为63、38例，其受侵频度差异有统计学意义（x^2=21．37，P〈0．01）；甲状软骨受侵频度最高，为92．6％（63／68），喉软骨触压式侵犯89例次，浸润式51例次，浸润范围明显小于触压范围；环杓侧肌、环杓后肌、甲杓间和杓间肌受侵频度分别为63．2％（43／68），57．4％（39／68），55．9％（38／68），51．5％（35／68）；环杓关节和环甲关节受侵频度分别为31．0％（21／68），17．6％（12／68）。喉上神经侵犯频度67．7％（44／65）多于喉返神经27．7％（18／65）。梨状窝内壁（为主）癌14例，外壁（为主）癌18例，内外壁癌36例；梨状窝尖受侵34例，正常26例，黏膜下浸润8例；梨状窝癌淋巴细胞轻度浸润为66．2％（45／68），最多见。梨状窝癌黏膜下侵犯24例和跳跃式浸润8例。结论梨状窝癌对喉内的侵犯首先通过声门旁间隙；喉软骨膜和喉软骨可抵抗癌侵犯；环杓侧肌、环杓后肌、甲杓间和杓间肌经常受侵；梨状窝内壁癌可侵犯喉内结构，外壁癌可沿甲状软骨内壁向上、下、外侵犯，内外壁癌可同时侵犯喉内、外结构，是最严重的梨状窝癌病变。梨状窝尖侵犯是癌向下咽下方及邻近组织侵犯的重要标志。     

前连合受侵声门癌的半导体激光微创治疗

目的探讨应用半导体激光微创治疗前连合受侵声门癌的适应证及临床疗效。方法对1998～2003年期间我科选择性的应用半导体激光治疗的32例前连合受侵声门癌病例进行临床分析。结果本组声门型喉癌的5年生存率为97%,复发率为16%,喉功能保留率为100%。5例复发,复发时间均在1年内,4例侵犯前连合声门下的T2病变复发率为100%,行喉次全切除环舌会厌固定术保留喉全部功能。结论有选择的应用半导体激光微创治疗前连合受侵声门癌具有创伤小、治疗时间短、费用低、嗓音恢复好等特点,虽然局部控制率有所降低,但只要随访到位,及时进行挽救手术,仍能获得满意的疗效。而对于侵犯前连合声门下的T2以上病例,目前仍应作为禁忌证。     

CO2激光切除累及前联合的早期声门癌26例

目的 探讨CO₂激光切除侵犯前联合的早期声门癌的临床安全性及疗效。 方法 回顾性分析26例行CO₂激光治疗的侵犯前联合的早期声门型喉癌患者临床资料,肿瘤标本术中冰冻、术后HE染色行镜下切缘观察,术后严格随访观察局部复发情况。 结果 切缘阴性20例,阳性6例,随访3年中局部复发7例,复发率为26.9%(7/26),其中切缘阳性复发率为83.3%(5/6),切缘阴性复发率为10%(2/20),组间差异有统计学意义(P=0.002)。 结论 CO₂激光治疗累及前联合的早期声门型喉癌喉功能保全良好,疗效可靠,但需严格把握手术适应证以确保切缘安全,降低局部复发率。     

激光治疗喉声门型癌手术切缘安全性研究

目的 分析喉声门型癌激光治疗的安全性。方法 喉声门型鳞状细胞癌50例(1996年8月-1998年10月),支撑喉镜下CO2激光切除肿瘤。喉癌标本常规石蜡包埋和连续切片,单数HE染色,双数行PCNA特异染色。切缘残留肿瘤用同样方法检查。结果 切缘安全26例,相对安全19例,阳性5例。T1a、T1b和T2的阳性率分别为3.6％(1/28),14.3％(2/14)和25.0％(2/8)(P<0.01)。免疫组化染色与常规HE染色切片观察切缘结果相同。激光手术切缘的组织病理学观察可见激光切缘有烧灼后的组织变性,激光切缘有4-8层细胞坏死。部分切除组织中可见软骨组织。50例患者观察5年以上,局部复发S例,其中切缘阳性4例,切缘相对安全1例。结论 激光手术切除的喉癌标本连续切片观察结果显示支撑喉镜下CO2激光手术切除早期喉声门型癌可获得安全切缘。     

喉杓会厌襞癌的临床分析

目的 分析喉杓会厌襞癌的临床特征、治疗方式及预后因素.方法 回顾性分析30例原发于声门上区喉杓会厌襞癌患者的临床资料,分析不同T、N分级,不同治疗方式的喉杓会厌襞癌患者3年无瘤生存率.结果 30例中15例有颈淋巴结转移,颈淋巴结转移率为50%,3年无瘤生存率为46.7%(14/30).T2、T3、T4级生存率分别为77.8%(719)、35.3%(6/17)、25.0%(1/4),T2级与T3 T4级患者生存率有显著性差异;NO患者3年无瘤生存率为66.7%(10/15),N 患者为26.7%(4/15),两者有显著性差异.喉全切除术、喉近全切除术及喉部分切除术患者3年无瘤生存率分别为28.6%(2/7)、25.0%(2/8)、66.7%(10/15);单纯手术治疗与综合治疗的生存率分别为57.1%(4/7)、43.5%(10/23).结论喉杓会厌襞癌不易早期诊断,颈淋巴结转移率高,预后差.T分级与颈淋巴结是影响喉杓会厌襞癌的预后因素.根据肿瘤局部浸润范围,部分患者可以行喉部分切除术,NO患者手术时应同时行同侧颈淋巴结清扫术.     

CO2激光在声门型喉癌外科治疗中的应用

目的 分析CO2激光治疗声门型喉癌的适应证、手术要点和并发症的预防.方法 回顾性分析复旦大学附属眼耳鼻喉科医院2003年3月至2006年6月间应用CO2激光治疗的60例无转移的声门型喉癌(T1期52例和,12期8例)的疗效和手术并发症.结果 所有病例术后声音嘶哑都比较明显,随着患侧声带切除后的逐渐修复,发音逐渐响亮,1年左右接近正常发音或轻度嘶哑.术后无气管切开、误吸和呼吸困难患者,除2例双侧声带癌行双侧声带切除后发生前连合粘连外,无其他严重并发症.60例喉癌病例中,54例术后随访2～5年无瘤生存.术后复发4例,1例再次激光手术,随访至今2年无瘤生存;3例改为喉全切除术,其中1例随访2年无瘤生存,2例再次复发死亡.术后4年和5年各失访1例.以Kaplan-Maier法统计累积生存率,3年和5年生存率分别为100.0%和91.5%.结论 激光作为一种微创技术,在喉癌的外科治疗中具有广泛的应用前景.激光手术创伤小,出血少,恢复快,疗效好,且能保留较为满意的发音功能,是治疗T1、T2声门型喉癌的理想方法,值得推广.     

术中切缘冰冻分析作为预后因素在早期声带癌激光声带切除术中的应用

目的早期声带癌经内镜切除术后,手术切缘的状况对患者预后的影响存在着争议。即使对切缘阳性的患者再次行喉镜检查,也很难见到肿瘤残留。术中行冰冻切片分析,已成为常规再次检查的一种手段。本研究的目的是评估根据术中切缘冰冻结果决定手术切除范围的患者预后影响因素。方法回顾性分析收录有连续随访记录的早期声带癌经内镜CO2激光切除的患者,评估手术时切缘的情况、疾病的复发率以及生存资料。计算出Kaplan—Meir生存率并通过对数秩检验和卡方检验来进行比较。结果纳入2004年2月-2011年9月间75例连续随访的患者。5年生存率和疾病特异性生存率分别为84％和98％。尽管扩大声带切除以获得切缘阴性,12个月内复发（P=0．019）和首次冰冻切缘阳性（P=O．001）的病例,提示较差的生存率。结论早期声带癌C（2激光切除,首次手术术中切缘的冰冻切片阳性结果和早期的局部复发,是整个生存率的不良标志。     

声门上型喉癌声带不同活动情况组织病理学分析

目的 :探讨声门上型喉癌声带不同活动情况下的组织病理学特点 ,为喉部分切除术提供理论依据。方法 :84例声门上型喉癌喉切除标本 ,经火棉胶包埋 ,制成连续切片 ,苏木精 伊红染色 ,光学显微镜下观察。结果 :声带固定 2 6例中杓状软骨、声门旁间隙下区以及两者同时受侵率分别为 4 6 .2 %、15 .4 %、38.5 % ;声带活动受限 30例中杓状软骨、声门旁间隙下区以及两者同时受侵率分别为 4 6 .7%、6 .7%、13.3% ;声带活动良好 2 8例中杓状软骨及声门旁间隙下区无受侵。声带固定、声带活动受限、声带活动良好 3组之间杓状软骨及声门旁间隙下区的受侵率差异有统计学意义 (P <0 .0 5 ) ;侵犯声门旁间隙下区的肿瘤均侵犯了喉室 ,声带活动受限及声带固定者中 ,肿瘤组织侵犯声门旁间隙下区占侵犯喉室比例分别为 4 0 .0 % (6 / 15 )、73.7% (14 / 19) ,两者之间差异有统计学意义 (P <0 .0 5 )。结论 :肿瘤侵犯杓状软骨及声门旁间隙下区是声门上型喉癌引起声带活动受限或固定的主要原因 ,观察声带活动及喉室的受侵情况 ,可为喉部分切除术提供参考依据。     

Thyroarytenoid muscle invasion in T1 glottic carcinoma

We report the prevalence of thyroarytenoid (TA) muscle invasion in 109 consecutive patients with T1 glottic carcinoma submitted to endoscopic laser cordectomy between February 1997 and January 2006, in order to evaluate if routine resection of the TA is necessary. A total of 109 patients staged as T1 underwent endoscopic treatment with carbon dioxide laser (CO₂), 36 cases were treated with type I or II cordectomies, and 73 patients underwent type III, IV or V cordectomies, with resection of all or part of the TA. Over a total of 109 patients, 6 (5.5%) cases staged as pT1 showed TA invasion. The endoscopic treatment of T1 glottic cancer should be as conservative as possible in terms of TA resection, since muscle invasion is rare. In many cases, type III and IV cordectomies can be regarded as excessive treatment. Muscle invasion found histologically after type II cordectomy can be managed by further excision.     

早期声门型喉癌的CO_2激光手术治疗

目的：探讨CO2激光手术治疗声门型喉癌的临床治疗效果。方法：112例声门型喉癌患者均在全身麻醉下经口气管插管,用支撑喉镜充分暴露声门,完全看清肿瘤后,显微镜下用CO2激光沿肿瘤外缘切除声门肿瘤,安全边界为3~5mm。术后随诊12~62个月。结果：112例支撑喉镜下CO2激光手术后8例局部复发,局部复发率7.14%,T1a复发率0.89%、T1b复发率0.89%、T2复发率5.40%,组间差异有统计学意义（χ2=5.306,P〈0.01）。病变侵犯前连合复发率7.14%,病变未侵犯前连合复发率7.14%,2组差异无统计学意义（χ2=0.000,P〉0.01）。1例患者术后当天出现喉腔大出血,经再次手术,应用带吸引单极电凝止血成功。结论：激光手术治疗早期声门型喉癌疗效可靠,喉功能保全好,是早期喉癌较为理想的治疗方式。     

Importance of anterior commissure in recurrence of early glottic cancer after laser endoscopic resection

OBJECTIVE: To analyze the impact of anterior commissure involvement on rates of local control, recurrence, and laryngeal preservation in patients with early glottic cancer (T1a-T2 lesions, staged according to the TNM staging system) treated with laser microsurgical resection. DESIGN: Retrospective review. SETTING: A tertiary university referral center. PATIENTS: Forty-eight patients with early glottic (T1-T2a) cancer. INTERVENTION: Laser endoscopic resection of glottic cancer. MAIN OUTCOME MEASURES: Evaluation of local control and larynx preservation rates. RESULTS: Among 48 patients presenting with early glottic cancer, the anterior commissure was involved in 24 cases. The local control rate was 79% (19 cases), and the larynx preservation rate was 96% (23 cases). In the 24 cases without anterior commissure involvement, the local control rate was 96% (23 cases) and the corresponding larynx preservation rate was 100% (24 cases). The rate of local recurrence with anterior commissure involvement was 21% (5 cases) and was 4% (1 case) when this site was not compromised by the tumor. This difference was not statistically significant (P = .08). When the anterior commissure was compromised by a lesion, more surgical margins taken from the patient after the completion of surgery (additional margins) were compromised by squamous cell carcinoma (SCC) on permanent section (33% [8 cases]) compared with 0% from patients with anterior commissure involvement (P = .003), despite the fact that these margins were negative for disease on frozen section. Cases with additional margins compromised by SCC on permanent section (P = .004) and T1 lesions (P = .009) had a higher rate of recurrence. CONCLUSIONS: This study shows the tendency toward greater additional margins compromised by SCC and a higher rate of tumor recurrence in lesions with anterior commissure involvement after laser microsurgery for early glottic carcinoma. Higher recurrence rates were observed in cases with compromised additional margins and in T1 cases.     

Local recurrence after CO2 laser cordectomy for early glottic carcinoma

OBJECTIVES: To point out prognosis factors of local recurrence after endoscopic cordectomies for Tis, T1a, T1b, and T2 glottic squamous cell carcinomas. STUDY DESIGN: A cohort of 110 patients treated from January 1990 to December 2000 at a single institution was retrospectively analyzed: 21 had Tis, 76 T1a, 7 T1b, and 6 T2 (mean follow-up 42 mo; range 1-160 mo). METHODS: The depth and extension of the excision were graded according to the European Laryngological Society Classification. Univariate analysis was used to review the impact on disease-free survival of factors related to the host, the tumor, and the treatment. RESULTS: According to the Kaplan-Meier method, the 5 year overall survival and the disease-free survival were 87% and 75%, respectively. The rates of cause-specific survival, ultimate local control with laser alone, and laryngeal preservation were 97%, 84%, and 90%, respectively. Univariate analysis by the log rank test revealed that vocal muscle infiltration (P = .001) and subglottic involvement (P = .02) have a significant impact on disease-free survival. Of the 22 patients with local recurrence (17 T1a, 1 T1b, and 4 T2), 9 were managed with total laryngectomy, 5 with partial laryngectomy, 4 with further laser cordectomy, 2 with radiotherapy, and 2 had no curative treatment. CONCLUSION: Transoral laser surgery for early glottic carcinoma is a valid alternative to radiotherapy and partial laryngectomy in terms of oncologic results. It offers low morbidity and excellent retreatment options in case of local failure. Careful patient selection for laser surgery is essential to secure good results.     

Impact of anterior commissure involvement on local control of early glottic carcinoma treated by laser microresection

OBJECTIVES: To analyze the impact of anterior commissure involvement on local control, survival, and laryngeal preservation in patients with early glottic cancer (pT1a-pT2a) treated with unimodality laser microsurgical resection. STUDY DESIGN: Retrospective review of 263 patients with early glottic cancer treated between 1986 and 1996. METHODS: Data on local control and overall survival rates were analyzed and calculated by the Kaplan-Meier method; the larynx preservation rates were given absolutely. RESULTS: Among 158 patients presenting with T1a glottic cancer, the anterior commissure was involved in 28 cases; the 5-year local control rate was 84%, and the larynx preservation rate was 93%. In the 130 cases without anterior commissure involvement, the 5-year local control rate was 90.0% and the corresponding larynx preservation rate 99%. In the T1b category consisting of 30 patients, anterior commissure involvement was observed in 16 patients; the 5-year local control rate was 73%, and the larynx preservation rate was 88%. In the 14 cases without anterior commissure involvement, the 5-year local control rate was 92% and the corresponding larynx preservation rate 100%. Seventy-five patients had T2a glottic carcinomas, with normal vocal cord movement. The anterior commissure was involved in 45 cases; the 5-year local control rate was 79%, and the larynx preservation rate was 93%. In the 30 cases without anterior commissure involvement, the 5-year local control rate was 74.0% and the corresponding larynx preservation rate 97%. CONCLUSIONS: This study shows the effectiveness of laser microsurgery for early glottic carcinoma regardless of anterior commissure involvement at presentation. This method can be performed as an outpatient procedure, even when conducting reresections.     

T3N0M0声门型喉癌手术治疗预后因素分析

目的探讨T3N0M0声门型喉癌手术治疗预后影响因素。方法收集81例T3N0M0声门型喉癌手术治疗病例资料,其中部分喉切除47例,全喉切除34例;I5例术后放疗。采用X2检验单因素分析和Cox比例风险回归模型进行多因素分析。结果81例T3N0M0声门型喉癌患者5年疾病特异性生存率67．1％,5年整体生存率58．0％。单因素分析显示年龄、吸烟指数、前联合累及情况、分化程度、5年内局部复发情况和术后颈部转移情况不同组间生存分布的差异具有统计学意义（P〈0．05）;多因素分析显示局部复发、术后颈部转移、年龄、前联合累及情况和分化程度是影响本组患者生存的独立危险因素。结论局部复发、术后颈部转移、年龄、前联合累及情况和分化程度是影响患者生存率的主要因素,对T3N0M0声门型喉癌采取预防性颈部淋巴结清扫术,重视前联合病变处理是提高患者生存率的关键。     

Treatment of early-stage glottic cancer by transoral laser resection

OBJECTIVES: We reviewed outcomes of treatment of early glottic carcinoma by transoral laser resection. METHODS: We performed a retrospective study of tumor stage, type of cordectomy (European Laryngological Society), resection margins, local control, and laryngeal preservation. RESULTS: Of 142 patients treated with curative intent, 79 (92% male; average age, 63 years) were retained for this study, on the basis of availability of information regarding resection margins, the absence of adjuvant radiotherapy, and followup of at least 2 years. The tumors were classified pTis (n = 21), pT1a (n = 51), or pT1b (n = 7) and were treated by cordectomy types I (23%), II (30%), III (27%), IV (6%), and V (14%). The average follow-up was 56 months (range, 24 to 150 months). The overall 5-year actuarial recurrence-free survival rate was 89%, and the 5-year actuarial disease-specific survival rate was 97.3%. There were 11 local recurrences (14%); 7 were treated by another laser resection, 1 by radiotherapy, 1 by supracricoid partial laryngectomy, and 2 by total laryngectomy. The overall rate of final local control with the laser alone was 100% for patients with initially positive margins, 95% for those with initially suspicious margins, and 94% for those with free margins. The overall rate of organ preservation was 100% for patients with positive or suspicious margins and 96% for those with free margins. Margin status (p = .39), cordectomy type (p = .67), and anterior commissure involvement (p = .16) were not statistically related to recurrence (Kaplan-Meier calculations with nonparametric univariate analysis). The recurrence rate was significantly higher for T1b tumors, however (p = .001). CONCLUSIONS: Laser microresection provides high rates of local control and organ preservation for early glottic cancer. Positive or suspicious margins were not related to recurrence, nor was anterior commissure involvement. This study implies that suspicious margins can be managed with a "watch-and-wait" attitude. Re-treatment with laser, external partial laryngectomy, and radiotherapy remain therapeutic options for recurrences.     

Endoscopic vertical partial laryngectomy

OBJECTIVE: To explain the significant difference between microlaryngoscopy with cordectomy and endoscopic vertical partial laryngectomy (EVPL), to describe the efficacy of EVPL on T1b and T2 glottic squamous cell carcinoma, and to evaluate EVPL with postoperative irradiation in T2 glottic cancer with impaired true vocal cord mobility. STUDY DESIGN: Retrospective review. METHODS: Twenty-six patients seen at the University of Utah Health Science Center between 1987 and 2000 with bilateral T1 (T1b) or T2 squamous cell carcinoma of the glottic larynx underwent EVPL. T2 cancers were classified as follows: a = unilateral disease, b = bilateral disease; i = impaired mobility. T1b and T2a glottic cancer patients received surgery alone, whereas impaired mobility patients (T2ai + T2bi) patients received surgery followed by planned postoperative irradiation. Patients were assessed for primary site control, perioperative and long-term complications, and ultimate cancer control.RESULTS Survival in the total group was 88.5%, with local control at 92.3%. The two recurrent patients were salvaged by total laryngectomy. For the whole group, anterior commissure involvement was present in 57.7% (15 of 26). Thirteen T2 (5 T2ai + 8 T2bi) carcinoma patients underwent combined therapy, with 8 (61.5%) of these patients having anterior commissure involvement. Two of these patients were upstaged at surgery, one to T3 and one to T4. Local control was 84.5%. Thirteen patients were treated by surgery only, with five of these patients having failed previous irradiation. Survival was 92.3% and local control 100%. This group included two T2bi patients, two patients upstaged to T4 on the basis of extension beyond the subglottis to the anterior wall of the trachea, 3 T2b, and 6 T2a patients. Anterior commissure involvement was seen in 7 (53.8%) of these patients. CONCLUSIONS: EVPL alone controlled all T1b and T2a glottic cancer patients, even in the presence of greater than 50% anterior commissure involvement. The significant difference between EVPL and classical microlaryngoscopy with cordectomy was carefully described. EVPL with planned postoperative irradiation resulted in an 85% local control rate in clinically staged T2ai and T2bi cancer patients, including the three upstaged patients.     

Oncological outcomes of early stage glottic squamous cell carcinoma treated with transoral laser microsurgery

Materials and methodsThe records of patients treated with TLM with previously untreated early stage glottic squamous cell carcinoma were reviewed.ResultsA total of 201 patients were enrolled: 191 men (95.0%) and 10 women (4.98%). The anterior commissure (AC) was involved in 94 (47.8%) patients. The 3- and 5-year overall survival rates of all patients were 94.5% and 90.9%. The local recurrence rates were 30.8% in the AC involvement (AC+) group and 16.0% in the group without AC involvement (AC–). The mortality rates were 18.1% and 3.7% in the AC+ and AC– groups. The 3- and 5-year disease-free survival rates were lower in the AC+ group (89.1%, 82.5%) than that in AC– group (99.0%, 96.5%). Local recurrence rates were 25%, 22.7%, 23.4%, and 22.1% for Tis, T1a, T1b, and T2 lesions. The mortality rates were 0.0%, 4.6%, 12.8%, and 15.3%. Three- and 5-year disease-free survival rates did not differ significantly between the tumor stage subgroups. The mortality for patients with local recurrence was 22.2%, which was higher than that for those without recurrence. The organ preservation rate was 98.5%.PurposeThis study was to assess the rates of oncological outcomes in patients with early stage glottic squamous cell carcinoma treated with transoral laser microsurgery (TLM).ConclusionAC involvement was a predictor of local recurrence, and its presence was associated with a reduced survival rate and increased mortality after TLM. TLM got high survival rate and low recurrence rate. The staging and oncological outcomes did not differ between tumor stage subgroups.