Akiyoshi Takashi, Nagasaki Toshiya, Ueno Masashi
Department of Gastroenterological Surgery, Cancer Institute Hospital, Gastroenterological Center, Japanese Foundation for Cancer Research, Koto-ku, Tokyo, Japan.
Ann Surg Oncol. 2015 Nov;22(12):3896. doi: 10.1245/s10434-015-4473-8. Epub 2015 Mar 10.
Extended surgery for locally recurrent rectal cancer is technically demanding because of the severe fibrosis around the tumor, which makes it difficult to achieve R0 resection. Although laparoscopic total pelvic exenteration has been carried out in patients with primary rectal cancer,1 (,) 2 to our knowledge ours is the first report of this laparoscopic procedure for locally recurrent rectal cancer.
A 70-year-old man who underwent laparoscopic low anterior resection for stage II rectal cancer was diagnosed as having two separate local recurrences near the anastomotic site. We decided to perform laparoscopic total pelvic exenteration after neoadjuvant chemoradiotherapy. The branches of the internal iliac vessels were carefully identified and divided. Presacral dissection behind the neorectum was carried out above the anastomotic site. Ligation of the dorsal vein complex was performed under direct visualization, with the patient in the jack-knife position. The perineal defect was reconstructed using a bilateral V-Y advancement of the musculocutaneous flaps of the gluteus maximus. An ileal conduit was constructed extracorporeally via an umbilical incision, after placing the patient in the lithotomy position.
The total operative time was 18 h and 5 min, with an estimated blood loss of 750 mL. Final pathology showed negative resection margins.
Laparoscopic total pelvic exenteration for locally recurrent rectal cancer is a technically challenging procedure requiring a long operative time. However, as demonstrated by this case, it can provide a very clear view of the operative field, allowing precise dissection, less blood loss, and a smaller abdominal wound.
局部复发性直肠癌的扩大手术在技术上要求较高,因为肿瘤周围存在严重纤维化,这使得实现R0切除很困难。尽管腹腔镜全盆腔脏器切除术已应用于原发性直肠癌患者,但据我们所知,我们是首例关于局部复发性直肠癌腹腔镜手术的报道。
一名70岁男性因II期直肠癌接受了腹腔镜低位前切除术,被诊断为在吻合口附近有两处独立的局部复发。我们决定在新辅助放化疗后进行腹腔镜全盆腔脏器切除术。仔细识别并分离髂内血管分支。在吻合口上方的新直肠后方进行骶前解剖。在患者处于折刀位时,在直视下结扎背静脉复合体。使用双侧臀大肌肌皮瓣V-Y推进重建会阴缺损。将患者置于截石位后,通过脐部切口在体外构建回肠导管。
总手术时间为18小时5分钟,估计失血量为750毫升。最终病理显示切缘阴性。
腹腔镜全盆腔脏器切除术治疗局部复发性直肠癌是一项技术要求高、手术时间长的手术。然而,如本病例所示,它可以提供非常清晰的手术视野,便于精确解剖,减少失血,且腹部伤口较小。