Abstract：
Objective: To investigate the technique and efficacy of fully endoscope resection of intralabyrinthine schwannomas (ILS) by transcanal transpromontorial endoscopic approach (TTEA). Study Design: Retrospective case review. Setting: Hospital. Patients: All patients who were affected by ILS, without extension to the internal auditory canal and underwent surgery with TTEA in our hospital in 2020. Intervention(s): Therapeutic. Main Outcome Measure(s): Recovery status, postoperative complications and remaining symptoms after surgery. Results: Three patients were included, all of which underwent gross total resections. The follow-up period was from 10 months to 2 years. No intraoperative and postoperative major complications were observed. There was no facial paralysis or cerebrospinal fluid leakage postoperatively. The hospitalization time of TTEA was 5 days. Three patients\' vertigo was relieved after 1 week without receiving vestibular therapy. Only 1 patient complained of transient episodes of vertigo when climbing or holding heavy objects. Conclusions: TTEA has the advantages of clear vision to identify the anatomical structure, enabling complete tumor resection, reduced operation time, and faster postoperative recovery.Level of Evidence: IV.
摘要：
目的:探讨经耳道经胸内镜入路(TEA)全内镜下切除丙炔神经鞘瘤(ILS)的方法和疗效。研究设计：回顾性病例回顾。设置：医院。患者：所有受ILS影响的患者，没有延伸到内耳道，并于2020年在我们医院接受了TEA手术。干预：治疗性。主要结果衡量标准：恢复状态，术后并发症及术后残留症状。结果：纳入3例患者，所有这些都进行了总体全面切除。随访时间为10个月至2年。术中及术后均未发生重大并发症。术后无面瘫或脑脊液漏。TEA的住院时间为5天。3例患者在未接受前庭治疗1周后眩晕缓解。只有1例患者抱怨攀爬或握住重物时出现短暂的眩晕发作。结论：TEA具有清晰的视觉来识别解剖结构的优点，能够完全切除肿瘤，减少操作时间，术后恢复更快。证据等级：IV。
