Retrospective Cohort Study
Copyright ©The Author(s) 2015. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Surg. Aug 27, 2015; 7(8): 145-151
Published online Aug 27, 2015. doi: 10.4240/wjgs.v7.i8.145
Single-port laparoscopic cholecystectomy vs standard laparoscopic cholecystectomy: A non-randomized, age-matched single center trial
Yoen TK van der Linden, Koop Bosscha, Hubert A Prins, Daniel J Lips
Yoen TK van der Linden, Koop Bosscha, Hubert A Prins, Daniel J Lips, Department of Surgery, Jeroen Bosch Hospital, 5223 GZ ‘s-Hertogenbosch, The Netherlands
Author contributions: All authors contributed substantially to the concept and design of the study and analyzing and interpretation of the dating; van der Linden YTK drafted the article and all authors critical revised it; all authors approved for publishing.
Institutional review board statement: The study was reviewed and approved by METC Brabant Institutional Review Board.
Informed consent statement: Because of the retrospective character of the study and anonymous data used, according to ethical guidelines no informed consents are necessary. For this reason no informed consents were obtained. Patients agreed to the proposed procedure, knowing the possible complications.
Conflict-of-interest statement: No conflict of interest.
Data sharing statement: No additional data are available.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See:
Correspondence to: Yoen TK van der Linden, MSc, Department of Surgery, Jeroen Bosch Hospital, Henri Dunantstraat 1, 5223 GZ ‘s-Hertogenbosch, The Netherlands.
Telephone: +31-73-5532000 Fax: +31-73-5533026
Received: January 12, 2015
Peer-review started: January 15, 2015
First decision: February 7, 2015
Revised: April 25, 2015
Accepted: June 30, 2015
Article in press: July 2, 2015
Published online: August 27, 2015

AIM: To compare the safety of single-port laparoscopic cholecystectomies with standard four-port cholecystectomies.

METHODS: Between January 2011 and December 2012 datas were gathered from 100 consecutive patients who received a single-port cholecystectomy. Patient baseline characteristics of all 100 single-port cholecystectomies were collected (body mass index, age, etc.) in a database. This group was compared with 100 age-matched patients who underwent a conventional laparoscopic cholecystectomy in the same period. Retrospectively, per- and postoperative data were added. The two groups were compared to each other using independent t-tests and χ2-tests, P values below 0.05 were considered significantly different.

RESULTS: No differences were found between both groups regarding baseline characteristics. Operating time was significantly shorter in the total single-port group (42 min vs 62 min, P < 0.05); in procedures performed by surgeons the same trend was seen (45 min vs 59 min, P < 0.05). Peroperative complications between both groups were equal (3 in the single-port group vs 5 in the multiport group; P = 0.42). Although not significant less postoperative complications were seen in the single-port group compared with the multiport group (3 vs 9; P = 0.07). No statistically significant differences were found between both groups with regard to length of hospital stay, readmissions and mortality.

CONCLUSION: Single-port laparoscopic cholecystectomy has the potential to be a safe technique with a low complication rate, short in-hospital stay and comparable operating time. Single-port cholecystectomy provides the patient an almost non-visible scar while preserving optimal quality of surgery. Further prospective studies are needed to prove the safety of the single-port technique.

Keywords: Single-port, Minimal invasive, Laparoscopy, Safety, Feasibility, Cholecystectomy

Core tip: Single-port cholecystectomies can be performed safe when performed by experienced surgeons. Low complication and conversion rates are seen, similar to standard multiport laparoscopic cholecystectomies. Single-port cholecystectomies can be performed in similar or even shorter operating times compared to the standard procedure. Single-port cholecystectomies can provide the patient an almost non-visible scar while preserving optimal quality of surgery.