title: A novel single-port laparoscopic operation for colorectal cancer with transanal specimen extraction: a comparative study.
abstract: BACKGROUND
  Extension of a single incision for the purpose of specimen extraction in single-port laparoscopic surgery (SPLS) can undermine the merits of SPLS, either by hurting cosmesis or by increasing wound morbidity.
  
  
  METHODS
  We retrospectively analyzed the clinical outcomes of patients undergoing SPLS sigmoidectomy, either with transanal specimen extraction (TASE, n = 15) or transumbilical specimen extraction (TUSE, n = 68), for colorectal cancer between March 2009 and March 2013. The inclusion criterion was a tumor diameter of ≤ 5 cm. The median follow-up was 93 months (range 13 - 149).
  
  
  RESULTS
  Most of intraoperative and postoperative variables were comparable between the two groups, except for lengthening of operation time in TASE (287 ± 87 min vs. 226 ± 78 min, P = 0.011). TUSE did not lengthen the duration of postoperative recovery, hospital stay, or pain, or increase the incidence of postoperative complications. Whereas TUSE showed 8.8% (6/68) of wound-related complications, TASE did not show wound-related complications during follow-up period (P = 0.586).
  
  
  CONCLUSIONS
  With the exception of a prolonged operation time, TASE showed equivalent surgical outcomes as TUSE in SPLS sigmoidectomy. Thus, the implement of TASE is expected to provide one way of reducing wound-related complications in SPLS in patients with a tumor diameter of ≤5 cm.
authors: Department of Surgery, Daejeon St. Mary's Hospital, The Catholic University of Korea, Daeheung-dong 520-2, Daejeon, Jung-gu, Republic of Korea. sejoonkim@hanmail.net.
authors: Say-June
authors: SJ
authors: Kim
authors: Department of Surgery, Daejeon St. Mary's Hospital, The Catholic University of Korea, Daeheung-dong 520-2, Daejeon, Jung-gu, Republic of Korea. bottlebird@catholic.ac.kr.
authors: Byung-Jo
authors: BJ
authors: Choi
authors: Department of Surgery, Daejeon St. Mary's Hospital, The Catholic University of Korea, Daeheung-dong 520-2, Daejeon, Jung-gu, Republic of Korea. zambo9@catholic.ac.kr.
authors: Sang Chul
authors: SC
authors: Lee
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001003:Anal Canal / Q000601:surgery; D003082:Colectomy / Q000379:methods*; D012809:Colon, Sigmoid / Q000601:surgery*; D015179:Colorectal Neoplasms / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D061646:Operative Time; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology; D012189:Retrospective Studies
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