摘要
全球甲状腺癌发病率不断增高,临床实践中腔镜甲状腺手术的需求逐渐增大。在不同甲状腺手术入路中,经口前庭入路腔镜甲状腺手术(TOETVA)最符合经自然腔道内镜手术理念,而TOETVA面临比较明显的并发症,本研究旨在探讨经口联合颌下入路腔镜甲状腺手术(ETOSA)在甲状腺乳头状癌手术中的应用效果。
回顾2022年3月—2022年6月在中南大学湘雅医院甲状腺外科接受ETOSA手术的31例甲状腺乳头状癌患者的临床资料,分析手术时间、术中出血量、术后引流量、术后引流时间、术后住院时间、术后病理结果、颈部美容评分、颏下感觉异常评分、术后疼痛评分以及术后并发症的发生及恢复情况。
31例患者均顺利完成ETOSA手术,无1例患者中转开放。平均手术时间(145.23±35.91)min;术中平均出血量(11.13±4.78)mL;术后第1天引流量为(50.97±26.25)mL;第2天引流量为(22.74±15.10)mL;术后平均住院时间为(2.19±0.47)d;清扫的中央区淋巴结数目为(7.52±4.34)枚。所有患者均未出现声带麻痹、颏神经损伤、术后感染、吞咽不适、口角撕裂以及下唇肿胀。仅有2例患者出现暂时性甲旁减以及1例患者出现颈前皮肤穿孔。所有患者均无明显下唇黏膜和皮肤感觉障碍,且手术美容效果良好,所有患者对术后颌下两个5 mm切口的恢复情况较满意。
近几十年来,甲状腺癌的发病率在全球范围内呈上升趋势,已成为最常见的内分泌恶性肿瘤之
随着经自然腔道内镜手术(natural orifice transluminal endoscopic surgery,NOTES)理念在外科手术领域的发
鉴于以上TOETVA存在的问题,笔者团队设计了一种新的混合经口腔镜技术—经口联合颌下入路腔镜甲状腺手术(endoscopic thyroidectomy via oral vestibule and submandibular approach,ETOSA),保持10 mm的前庭观察孔位置不变,而将口腔前庭两侧操作孔切口重新定位到颌下。ETOSA减少了口腔内操作,同时更加合理的三角布局减少了Trocar之间的干扰,更有利于手术操作。经中英文数据库检索,该入路(ETOSA)属国内外首次报道。本文将总结这项新技术初步应用于乳头状甲状腺癌中临床数据和结果,并评估其安全性和可行性。
分析2022年3月—2022年6月在中南大学湘雅医院甲状腺外科接受ETOSA的连续31例甲状腺乳头状癌患者的临床资料。男性1例,女性30例;年龄22~58岁,平均(35.10±9.39)岁;平均BMI(21.97±3.28)kg/
术前完善头颈部体检、甲状腺功能、颈部超声检查以及喉镜检查以评估甲状腺病灶,对可疑恶性肿瘤的患者均行FNA检查。术前2~3 d开始使用复方氯己定漱口液(3次/d)漱口;术前1~2 d由口腔科医师评估患者口腔卫生并常规洁牙。术前30 min预防性静脉滴注抗生素(0.9%氯化钠溶液100 mL+头孢呋辛1.5 g)。
体位及麻醉:全身麻醉后,患者取仰卧位,颈部微伸,采用带有神经监测的气管导管进行经口插管。盖一张棉垫于面部,表面以手术薄膜贴附。手术区域常规消毒铺单。术者位于患者头侧,护士及器械台位于术者右侧,助手位于术者左侧。
切口选择及空间建立:在唇系带上方1 cm口腔前庭正中做一约1.5 cm横行切口,电刀沿骨膜水平游离至下颌骨下缘,在颏下三角区域注射10~20 mL膨胀液(1∶500 000肾上腺素和1∶1 000罗哌卡因)。分离棒通过观察孔在颏下三角区域呈扇形钝性分离,大弯钳扩大隧道腔隙。随后在下颌体中点外侧4~5 cm处下方约0.5 cm处沿皮纹做0.5 cm横行切口(

图1 术中操作情况 A:手术颌下切口的定位;B:Trocar的中置入以及工作空间建立;C:甲状腺上极的处理;D:中央区淋巴结清扫
Figure 1 Intraoperative views A: Localization of submandibular incision; B: Insertion of Trocar and working space creation; C: Treatment of the superior pole of the thyroid gland; D: Dissection of central lymph nodes
术后预防性使用抗生素1次,继续使用氯己定漱口7 d。术后1 d可进软食,术后3 d正常进食。通常在术后2 d拔除引流管。术后定期通过网络、电话以及门诊随访。
所有接受全甲状腺手术的患者,术后均预防性地静脉注射葡萄糖酸钙和口服钙;术后血清甲状旁腺激素下降或出现低钙血症患者出院后继续予以口服钙片和维生素D治疗。所有患者术后均未接受止痛药物的治疗。术后颏神经损伤定义为下唇感觉异常。术后颏下感觉异常定义为颏下区域感觉减退、麻木或感觉消失。
手术时间、术中出血量、术后引流量、术后引流天数、术后住院时间、术后30 d评估颈部美容评
31例甲状腺乳头状癌患者均顺利完成经口联合颌下腔镜入路甲状腺手术,无1例中转开放。所有患者(31例)均接受中央区淋巴结清扫,其中行腺叶切除术的患者21例,行甲状腺全切的患者10例。恶性肿瘤最大径3.7~18.0 mm,平均(8.39±3.90)mm。
平均手术时间(145.23±35.91)min,其中工作空间建立的平均时间(41.45±10.75)min,腺叶切除+中央区淋巴结清扫的平均时间(92.14±28.04)min,甲状腺全切+中央区淋巴结清扫平均时间(128.20±31.27)min。术中平均出血量(11.13±4.78)mL。术后第1天引流量为(50.97±26.25)mL,第2天引流量为(22.74±15.10)mL。术后平均住院时间为(2.19±0.47)d。清扫的中央区淋巴结数目为(7.52±4.34)枚,清扫的转移中央区淋巴结数目为(1.77±2.35)枚(
指标 | 数值 |
---|---|
手术时间(min) | 145.23±35.91 |
空间建立 | 41.45±10.75 |
腺叶切除术+中央区淋巴结清扫 | 92.14±28.04 |
甲状腺全切术+中央区淋巴结清扫 | 128.20±31.27 |
术中出血量(mL) | 11.13±4.78 |
术后引流量(mL) | |
第1天 | 50.97±26.25 |
第2天 | 22.74±15.10 |
术后引流时间(d) | 2.13±0.34 |
术后住院时间(d) | 2.19±0.47 |
清扫的中央区淋巴结数目(枚) | 7.52±4.34 |
清扫的转移中央区淋巴结数目(枚) | 1.77±2.35 |
2例患者在研究的早期发生短暂性甲状旁腺功能减退,均于30 d后恢复正常。1例患者出现颈前皮肤穿孔,在建立空间时由于层面过浅,电钩烧灼所致。所有患者均未出现下唇麻木感(颏神经损伤),吞咽不适以及术后感染等。患者对术后30 d的颈部外观非常满意(平均评分:1.06±0.36)(
项目 | 数值 |
---|---|
术后并发症[n(%)] | |
短暂性声音嘶哑 | 0(0.00) |
短暂性甲状旁腺功能减退 | 2(6.45) |
皮肤穿孔 | 1(3.23) |
颏神经损伤 | 0(0.00) |
感染 | 0(0.00) |
颈前区肿胀 | 0(0.00) |
吞咽不适 | 0(0.00) |
其他 | 0(0.00) |
术后30 d颈部美观评分() | 1.06±0.36 |

图2 患者术后伤口情况 A:术后1 d颌下伤口情况;B-C:术后30 d颌下伤口情况
Figure 2 Postoperative views of the submandibular incision A: Submandibular incision on postoperative day 1; B-C: Submandibular incision on postoperative day 30

图3 术后颏下区域感觉异常以术后疼痛的变化(误差条代表95% CI) A:术后30 d内的颏下感觉异常变化情况;B:术后30 d内的疼痛变化情况
Figure 3 Changes in postoperative pain and submental paresthesia (error bars representing the 95% CI) A: Changes of submental paresthesia within 30 d after surgery; B: Changes of postoperative pain within 30 d after surgery
近20年来,外科医生致力于开展并改良远距离腔镜甲状腺手术,以避免传统手术造成的颈部瘢痕并提高患者术后的生活质
常见的腔镜甲状腺入路有腋窝入路、胸前入路、耳后入路、经口入路等。腋窝入路将颈部切口移至腋下,避免颈部留下疤
目前经口腔镜甲状腺手术多采用TOETVA:观察孔选择前庭正中切口,两侧操作孔位于颏神经发出点的内侧(第一磨牙颊黏膜处)。经过对颏神经及其分支的解剖学研究和口腔前庭内切口的不断改良,减少了TOETVA术后颏神经损伤概率,但仍有部分患者存在持续性下唇和下颌部感觉异
在本研究中,31例接受ETOSA的甲状腺乳头状癌患者无中转开放者,清扫的中央区淋巴结平均数目为(7.52±4.34)枚,这与笔者团队既往的研
Inabnet
笔者早期的经验表明,ETOSA在甲状腺癌患者中具有较好的安全性和技术可行性。在选择合适的患者中,ETOSA可能是一种可行的TOETVA替代方案,它以较小和可接受的美容代价使手术更加便利,解决了颏神经损伤和器械间相互干扰等一系列问题。ETOSA兼具了TOEVTA的优势同时,是一种安全有效和便利的手术入路,值得临床推广。
利益冲突
所有作者均声明不存在利益冲突。
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