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Abstracts of the 105Th Annual Congress of the Swiss Society of Surgery, Held in Basel, Switzerland, 16 May – 18 May 2018

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Abstracts of the 105Th Annual Congress of the Swiss Society of Surgery, Held in Basel, Switzerland, 16 May – 18 May 2018 May 2018 • Volume 105 • Supplement 3 @BJSurgery Abstracts of the 105th Annual Congress of the Swiss Society of Surgery, held in Basel, Switzerland, 16 May – 18 May 2018 www.bjs.co.uk BJS May 2018 Volume 105 Supplement 3 Abstracts of the 105th Annual Congress of the Swiss Society of Surgery, held in Basel, Switzerland, 16 May–18 May 2018 Disclaimer This abstract book has been produced using author-supplied copy. Editing has been restricted to some corrections of spelling and style where appropriate. The publisher assumes no responsibility for any claims, instructions, methods or drug dosages contained in the abstracts. It is recommended that these are verified independently. The contents contained herein are correct at the time of printing and may be subject to change. Incorporating European Journal of Surgery and Swiss Surgery A Journal formed by the union of BJS, Acta Chirurgica Scandinavica, publisher of European Journal of Surgery, and the Swiss Society of Surgery, publisher of Swiss Surgery. The Journal is specially related to the Association of Surgeons of Great Britain and Ireland, Spanish Society of Surgical Research, Swedish Surgical Society and Swiss Society of Surgery. Editorial Team Editor-in-Chief Editors J. J. Earnshaw, Gloucester, UK J. Beynon, Swansea, UK C. H. C. Dejong, Maastricht, The Netherlands M. D. Evans, Swansea, UK R. J. Hinchliffe, Bristol, UK K. Søreide, Edinburgh, UK M. Sund, Umeå, Sweden B. P. L. Wijnhoven, Rotterdam, The Netherlands D. C. Winter, Dublin, Ireland Statistical Editors J. A. Cook, Oxford, UK J. Ranstam, Lund, Sweden Council Chairman Treasurer O. J. Garden, Edinburgh, UK M. G. Wyatt, Newcastle upon Tyne, UK Vice-Chairmen Company Secretary A. Bergenfelz, Lund, Sweden P. R. O’Connell, Dublin, Ireland S. Post, Mannheim, Germany R. J. Baigrie, Capetown, South Africa J. De Oca, Barcelona, Spain M. Besselink, Amsterdam, The Netherlands O. Farges, Paris, France J. M. Blazeby, Bristol, UK C. Jonsson, Gothenburg, Sweden S. Breitenstein, Zurich, Switzerland J. Mayol, Madrid, Spain C. Bruns, Cologne, Germany A. Montgomery, Malmö, Sweden G. Carlson, Manchester, UK V. Papalois, London, UK N. Demartines, Lausanne, Switzerland M. Sarr, Rochester, Minnesota, USA Editorial Board M. Barczynski, Poland P. J. Friend, UK J. McK. Manson, UK D. Bartsch, Germany A. Garcia, Spain W. Marti, Switzerland G. Beets, The Netherlands I. Garcia-Alonso, Spain A. Martling, Sweden G. Belli, Italy T. Grantcharov, Canada R. Morgan, UK S. Biondo, Spain J. Herreros, Spain D. Morton, UK M. Björck, Sweden N. Hiki, Japan R. Parks, UK J. Brockmann, Switzerland J. Hill, UK T. Pawlik, USA C. Buskens, The Netherlands J. Holcomb, USA M. Pera, Spain D. Candinas, Switzerland M. Iacobone, Italy X. Rogiers, Belgium T. 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