摘要
近年来,各种颈部无痕的甲状腺手术逐渐成熟,经口腔前庭入路全内镜甲状腺手术(TOETVA)由于其路径短、清扫淋巴结方便彻底、体表无痕,逐渐受到医生及患者的青睐。然而,在笔者团队前期开展的TOETVA患者中发现,部分术后有不同程度的颏部麻木感、下唇运动功能减退、水肿变形、颏部瘢痕增生变硬等不适,于是团队后期采用5 mm内镜进行经口腔甲状腺手术,并加入腋窝通道辅助手术和取出标本,即经口腔联合腋窝入路全内镜甲状腺手术(AcaTOETVA),当面对颏骨过于突出的患者,口腔观察孔隧道比较难建立时,采用颏下5 mm切口建立观察孔隧道,行经颏下口腔前庭联合腋窝入路内镜甲状腺手术(SaAcaTOETVA)。本文通过总结行该术式的有限病例,初步探讨该术式的可行性及优缺点。
6例患者均顺利完成手术,其中3例行甲状腺左侧腺叶切除术+左侧中央区淋巴结清扫,1例行甲状腺右侧腺叶切除术+右侧中央区淋巴结清扫,1例行甲状腺右侧腺叶近全切除术,1例行甲状腺双侧叶近全切除术,手术时间100~155 min,术中出血量10~20 mL,术后住院时间3 d,患者无喉返神经损伤,无皮下血肿、颏神经损伤、颏部及嘴唇麻木、颏部肿胀、低钙血症、吞咽困难、CO2气体栓塞、切口感染延迟愈合等并发症发生,1例患者出现颏部小范围瘀青,为操作孔穿刺所致,于1周内恢复。术后1个月随访,患者颏下切口愈合良好,正常站立位时,切口隐藏于颏下及腋窝,相对隐蔽不易被发现,患者对颏下及腋窝切口满意,术后复查未发现肿瘤种植、复发或转移。
1997年Hüscher
回顾性分析2020年9—11月在湖北省武汉市第一医院甲状腺乳腺外科接受SaAcaTOETVA的6例甲状腺肿物患者的临床、病理与随访资料。6例患者中,女性5例,男性1例;年龄范围:25~49岁。术前甲状腺结节最大径为4.5 cm(范围:0.4~4.5 cm)。术前喉镜检查未见异常,超声及增强CT未见颈侧区淋巴结及远处器官转移。该项研究已经告知患者手术风险及签署相关知情同意书,相关技术已获得本院伦理批准(批号:武卫一院论审[2023]14号)。
适应证:⑴ 良性结节,最大径<7 cm;⑵ 分化型甲状腺癌,最大径<2.5 cm,无颈侧区淋巴结转移及全身远处器官转移;⑶ 无颈部手术史及放射史;⑷ 无甲状腺功能亢进或甲状腺功能减退;⑸ 无瘢痕增生疾病。禁忌证:⑴ 甲状腺功能亢进;⑵ 肿瘤侵犯毗邻结构如气管、食管或组织粘连严重;⑶ 术前辅助检查提示颈侧区淋巴结转移或远处器官转
术前30 min预防性予以甲硝唑1 g静脉滴注。全身麻醉下,患者处仰卧位,双臂内收,颈部呈稍过仰伸位,经口置入神经监护气管插管,并固定插管与口腔正中位置,头部贴膜保护眼睛、鼻腔、耳道及面部皮肤、头发(

图1 SaAcaTOETVA手术 A:患者体位准备;B:建立颏下与口腔前庭腔道;C:建立颈前皮下空间;D:建立腋窝腔道;E:建腔完成后腔道入路情况;F:经腋窝腔道置入可折叠拉钩拉开带状肌;G:经腋窝腔道留置引流管
Figure 1 SaAcaTOETVA procedure A: Patient position preparation; B: Establishment of submental and oral vestibular tunnels; C: Creation of subcutaneous space in the anterior neck; D: Establishment of the axillary tunnel; E: Post-creation view of the tunnel routes; F: Insertion of a foldable retractor through the axillary tunnel to retract strap muscles; G: Placement of a drainage tube through the axillary tunnel
6例患者均顺利完成手术,其中3例行甲状腺左侧腺叶切除术+左侧中央区淋巴结清扫,1例行甲状腺右侧腺叶切除术+右侧中央区淋巴结清扫,1例行甲状腺右侧腺叶近切除术,1例行甲状腺双侧叶近全切除术,无中转开放手术患者。手术时间为100~155 min,术中出血量为10~20 mL,术后住院时间为3 d。术后病理学检查结果示结节性甲状腺肿2例,甲状腺微小乳头状癌3例,1例乳头状癌直径1.4 cm。患者无喉返神经损伤,无皮下血肿、颏神经损伤、颏部及嘴唇麻木、颏部肿胀、低钙血症、吞咽困难、CO2气体栓塞、切口感染延迟愈合等并发症发生,1例患者出现颏部小范围瘀青,为操作孔穿刺所致,于1周内恢复。
术后1个月随访,患者颏下切口愈合良好,正常站立位时,切口隐藏于颏下及腋窝(

图2 术后切口外观 A:颏下切口;B:腋窝切口
Figure 2 Postoperative incision appearance A: Submental incision; B: Axillary incision
2008年,Witzel等首次基于人类尸体及动物试验提出了经口入路甲状腺手术(transoral endoscopic thyroidectomy,TOET),2011年左右我国各大医疗中心陆续开展了TOETVA手
笔者团队于2019年8月份前成功开展40余例TOETVA手术,在术后与患者的随访中发现,部分患者术后有不同程度的颏部麻木感、下唇运动功能减退、水肿变形、颏部瘢痕增生变硬等不
Ma
SaAcaTOETVA是颏下前庭入路和口腔前庭联合腋窝入路两种术式的糅合,相比于颏下前庭入路,该术式的颏下切口更小更隐蔽,术后颏下瘢痕更小,同时在面临更大的甲状腺肿瘤时选择从腋窝取出标本无需延长颏下切口,避免了颏下瘢痕的延长和牵拉,即使稍稍延长腋窝切口也不会影响患者美观。该术式有4个腔道,术中可以同时进入4个器械,术中可以经腋窝孔道辅助吸烟雾吸渗出液体、放置可弯曲拉钩、辅助牵拉甲状腺等,还可以通过腋窝孔道来作为观察孔,检查甲状腺上级血管处理情况。本团队发明的“金手指

图3 “金手指”拉钩及其应用 A:左侧和右侧甲状腺手术对应的“金手指”拉钩;B:“金手指”拉钩顶住皮瓣稳定空间;C:右侧“金手指”拉钩顶住带状肌可以充分显露甲状腺上级;D:助手经腋窝腔道进抓钳提拉甲状腺,主刀左手使用神经监测保护神经的同时离断甲状腺;E:助手经腋窝腔道进抓钳提拉甲状腺,主刀左手夹住旁腺分离保护旁腺
Figure 3 "Golden finger" hooks and their application A: "Golden finger" hooks corresponding to left and right thyroid surgeries; B: "Golden finger" hook stabilizing the space by holding the skin flap; C: "Golden finger" on the right side holding the strap muscles to fully expose the superior thyroid; D: Assistant using grasping forceps through the axillary tunnel to lift the thyroid while the primary surgeon using left hand to monitor and protect the nerve during thyroid dissection; E: Assistant using grasping forceps through the axillary tunnel to lift the thyroid while the primary surgeon useing left hand to hold and protect the parathyroid during separation
颏下入路观察孔镜头活动灵活,不受下颌骨外形影响,甚至不受下颌整形术后所致的影响,尤其在处理甲状腺上级时,镜头操作杆可以上翘得更高,更有利于甲状腺上极的暴露,从而可以更方便地观察及处理上级血管和喉上神经。此外采用5 mm内镜进行手术,手术器械之间的拥挤情况会有所好转,但是这仅仅是笔者的手术体验,想要进一步量化二者之间的对比比较困难。
马小鹏
手术安全性方面,孙晓伟
但笔者认为SaAcaTOETVA仍存在以下不足:首先,5 mm内镜的清晰度较10 mm内镜差。其次,5 mm内镜的手术空间狭小,对操作者的技术要求高,对于初学者难度较
综上所述,SaAcaTOETVA手术安全可行,是AcaTOETVA手术的特殊情况的重要补充,具有切口隐蔽、美观的特点,但5 mm内镜的清晰度问题以及初始建腔空间较小的问题,制约着该术式的推广应用。
作者贡献声明
阮剑负责论文选题,整体框架设计及修订;陶龙负责论文资料收集,撰写,修改。
利益冲突
所有作者均声明不存在利益冲突。
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