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）腹腔镜手术的预后良好，但目前针对胆囊癌腹腔镜手术的适应证与手术技术尚未达成共识。<b><i>目的：</i></b> 通过分析专家问卷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当前应用现状。<b><i>方法：</i></b> 2016年9月10日于韩国首尔召开专家会议前，针对胆囊癌外科领域的专家医师开展了一项国际问卷调研。<b><i>结果：</i></b> 多数参与回复的外科医师认为，腹腔镜手术在疑似或早期胆囊癌患者中具有可接受的应用价值，且对于经筛选的胆囊癌患者，腹腔镜扩大胆囊切除术的疗效可与开放手术媲美。然而，针对显性胆囊癌的腹腔镜手术选择标准，以及手术技术的具体细节，在不同外科医师之间仍存在差异。<b><i>结论：</i></b> 本次问卷调研与文献回顾结果显示，胆囊癌腹腔镜手术仅在经过严格筛选的病例中开展。不过，已发表文献中报道的良好预后，以及经验丰富的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率或将进一步提升。