title: Laparoscopic natural orifice specimen extraction-colectomy: a systematic review.
abstract: Over the last 20 years, laparoscopic colorectal surgery has shown equal efficacy for benign and malignant colorectal diseases when compared to open surgery. However, a laparoscopic approach reduces postoperative morbidity and shortens hospital stay. In the quest to optimize outcomes after laparoscopic colorectal surgery, reduction of access trauma could be a way to improve recovery. To date, one method to reduce access trauma is natural orifice specimen extraction (NOSE). NOSE aims to reduce access trauma in laparoscopic colorectal surgery. The specimen is delivered via a natural orifice and the anastomosis is created intracorporeally. Different methods are used to extract the specimen and to create a bowel anastomosis. Currently, specimens are delivered transcolonically, transrectally, transanally, or transvaginally. Each of these NOSE-procedures raises specific issues with regard to operative technique and application. The presumed benefits of NOSE-procedures are less pain, lower analgesia requirements, faster recovery, shorter hospital stay, better cosmetic results, and lower incisional hernia rates. Avoidance of extraction site laparotomy is the most important characteristic of NOSE. Concerns associated with the NOSE-technique include bacterial contamination of the peritoneal cavity, inflammatory response, and postoperative outcomes, including postoperative pain and the functional and oncologic outcomes. These issues need to be studied in prospective randomized controlled trials. The aim of this systematic review is to describe the role of NOSE in minimally invasive colorectal surgery.
authors.affiliation: Albert M Wolthuis, Anthony de Buck van Overstraeten, André D'Hoore, Department of Abdominal Surgery, University Hospital Leuven, 3000 Leuven, Belgium.
authors.forename: Albert M
authors.initials: AM
authors.lastname: Wolthuis
authors.affiliation: Albert M Wolthuis, Anthony de Buck van Overstraeten, André D'Hoore, Department of Abdominal Surgery, University Hospital Leuven, 3000 Leuven, Belgium.
authors.forename: Anthony
authors.initials: A
authors.lastname: de Buck van Overstraeten
authors.affiliation: Albert M Wolthuis, Anthony de Buck van Overstraeten, André D'Hoore, Department of Abdominal Surgery, University Hospital Leuven, 3000 Leuven, Belgium.
authors.forename: André
authors.initials: A
authors.lastname: D'Hoore
mesh_terms: D003082:Colectomy / Q000009:adverse effects / Q000379:methods*; D006801:Humans; D010535:Laparoscopy / Q000009:adverse effects / Q000379:methods*; D057605:Natural Orifice Endoscopic Surgery / Q000009:adverse effects / Q000379:methods*; D061646:Operative Time; D011183:Postoperative Complications / Q000209:etiology; D012307:Risk Factors; D013997:Time Factors; D016896:Treatment Outcome
keywords: Colorectal surgery; Gastrointestinal endoscopy; Laparoscopy; Natural orifice specimen extraction; Natural orifice specimen extraction-colectomy; Transanal; Transanal minimally invasive surgery; Transcolonic; Transrectal; Transvaginal