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No difference in incidence of port-site hernia and chronic pain after single-incision laparoscopic cholecystectomy versus conventional laparoscopic cholecystectomy: a nationwide prospective, matched cohort study

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Abstract

Background

Conventional laparoscopic cholecystectomy (CLC) is regarded as the gold standard for cholecystectomy. However, single-incision laparoscopic cholecystectomy (SLC) has been suggested to replace CLC. This study aimed at comparing long-term incidences of port-site hernia and chronic pain after SLC versus CLC.

Methods

We conducted a matched cohort study based on prospective data (Jan 1, 2009–June 1, 2011) from the Danish Cholecystectomy Database with perioperative information and clinical follow-up. Consecutive patients undergoing elective SLC during the study period were included and matched 1:2 with patients subjected to CLC using pre-defined criteria. Follow-up data were obtained from the Danish National Patient Registry, mailed patient questionnaires, and clinical examination. A port-site hernia was defined as a repair for a port-site hernia or clinical hernia located at one or more port sites.

Results

In total, 699 patients were eligible and 147 patients were excluded from the analysis due to pre-defined criteria. The rate of returned questionnaires was 83%. Thus, 552 (SLC, n = 185; CLC, n = 367) patients were analyzed. The median observation time was 48 months (range 1–65) after SLC and 48 months (1–64) after CLC (P = 0.940). The total cumulated port-site hernia rate was 4 % and 6 % for SLC and CLC, respectively (P = 0.560). Incidences of moderate/severe chronic pain were 4 % and 5 % after SLC and CLC, respectively (P = 0.661).

Conclusions

We found no difference in long-term incidence of port-site hernia or chronic pain after SLC versus CLC.

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Acknowledgments

Thanks to research nurse Pernille Strandfelt (Bachelor Nurse at the Gastro Unit, Surgical Section, Hvidovre Hospital, University of Copenhagen) for exquisite professional help to carry out the study. No compensation was received for data collection. The study was funded by the University of Copenhagen, the Danish Cholecystectomy Database, and the Danish Hernia database.

Disclosures

Dr. Christoffersen has no conflicts of interest or financial ties to disclose. Dr. Brandt has no conflicts of interest or financial ties to disclose. Dr. Oehlenschläger has no conflicts of interest or financial ties to disclose. Dr. Rosenberg reports grants from Baxter Healthcare, grants from Johnson & Johnson, grants from Bard, personal fees from Bard, and personal fees from Merck, outside the submitted work. Dr. Helgstrand has no conflicts of interest or financial ties to disclose. Dr. Jørgensen declares consultant ships and honoraria from the companies Covidien, Davol and Ethicon, and has no stock ownership, gifts, free or reimbursed travel/vacations, equity interests, arrangements regarding patents or other vested interests. Dr. Bardram has no conflicts of interest or financial ties to disclose. Dr. Bisgaard reports personal fees from Bard, grants from Ethicon, grants from Covidien, and personal fees from Life Cell, outside the submitted work.

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Correspondence to Mette W. Christoffersen.

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Christoffersen, M.W., Brandt, E., Oehlenschläger, J. et al. No difference in incidence of port-site hernia and chronic pain after single-incision laparoscopic cholecystectomy versus conventional laparoscopic cholecystectomy: a nationwide prospective, matched cohort study. Surg Endosc 29, 3239–3245 (2015). https://doi.org/10.1007/s00464-015-4066-4

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  • DOI: https://doi.org/10.1007/s00464-015-4066-4

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