Supplementary Material for: Survey Results of the Expert Meeting on Laparoscopic Surgery for Gallbladder Cancer and a Review of Relevant Literature

<b><i>Background:</i></b> Favorable outcomes of laparoscopic surgery for gallbladder cancer (GBC) have been reported; yet consensus on the indications and surgical techniques for laparoscopic surgery for GBC is lacking. <b><i>Objective:</i></b> To evaluate the current status of laparoscopic surgery for GBC by analyzing the results of a survey of experts and by reviewing the relevant published literature. <b><i>Methods:</i></b> Before an expert meeting was held on September 10, 2016 in Seoul, Korea, an international survey was undertaken of expert surgeons in the field of GBC surgery. <b><i>Results:</i></b> The majority of surgeons who responded agreed that laparoscopic surgery has an acceptable role for suspicious or early GBC, and that laparoscopic extended cholecystectomy has a value comparable to that of open surgery in selected patients with GBC. However, the selection criteria for laparoscopic surgery for overt GBC and the details of the surgical techniques varied among surgeons. <b><i>Conclusions:</i></b> This survey and literature review revealed that laparoscopic surgery for GBC is performed in highly selected cases. However, the favorable outcomes in the published reports and the positive view of experienced surgeons for this operative procedure suggest a high likelihood that laparoscopic surgery will be more frequently performed for GBC in the future.

<b><i>背景：</i></b> 已有研究报道胆囊癌（gallbladder cancer, GBC）患者接受腹腔镜手术可获得良好预后，但目前针对胆囊癌腹腔镜手术的适应证与手术技术尚未形成统一共识。<b><i>目的：</i></b> 通过分析专家调研结果并回顾相关已发表文献，评估胆囊癌腹腔镜手术的应用现状。<b><i>方法：</i></b> 2016年9月10日于韩国首尔召开专家研讨会前，本研究针对胆囊癌外科领域的专家外科医师开展了一项国际性调研。<b><i>结果：</i></b> 多数应答的外科医师认可，对于疑似或早期胆囊癌患者，腹腔镜手术具备可接受的应用价值；且在经过严格筛选的胆囊癌患者中，腹腔镜扩大胆囊切除术的疗效与开放手术相当。但针对显性胆囊癌患者的腹腔镜手术遴选标准，以及手术技术细节，不同医师之间仍存在差异。<b><i>结论：</i></b> 本次调研与文献回顾结果显示，胆囊癌腹腔镜手术仅应用于经过高度筛选的病例。但现有已发表文献报告的良好预后，以及经验丰富外科医师对该术式的积极态度，提示未来胆囊癌腹腔镜手术的应用频次或将进一步提升。