Lassen, Kristoffer

Professor II Institutt for klinisk medisin
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Tilknyttet forskningsgruppe Gastrokirurgi.

  • Melloul, Emmanuel; Lassen, Kristoffer; Roulin, Didier; Grass, Fabian; Perinel, Julie; Adham, Mustapha; Wellge, Erik Björn; Kunzler, Filipe; Besselink, Marc G.; Asbun, Horacio; Scott, Michael J.; Dejong, Cornelis H.C.; Vrochides, Dionisos; Aloia, Thomas; Izbicki, Jakob R.; Demartines, Nicolas. Guidelines for perioperative care for pancreatoduodenectomy: Enhanced Recovery After Surgery (ERAS) recommendations 2019. World Journal of Surgery 2020. ISSN 0364-2313.s 1 - 29.s doi: 10.1007/s00268-020-05462-w.

  • Kleive, Dyre; Sahakyan, Mushegh; Labori, Knut Jørgen; Lassen, Kristoffer. Nasogastric Tube on Demand is Rarely Necessary After Pancreatoduodenectomy Within an Enhanced Recovery Pathway. World Journal of Surgery 2019. ISSN 0364-2313.s 1 - 7.s doi: 10.1007/s00268-019-05045-4.

  • Brudvik, Kristoffer Watten; Yaqub, Sheraz; Kemsley, E; Coolsen, MME; Dejong, CHC; Wigmore, SJ; Lassen, Kristoffer. Survey of the attitudes of hepatopancreaticobiliary surgeons in northern Europe to resection of choledohal cysts in asymptomatic Western adults. BJS Open 2019. ISSN 2474-9842.s doi: 10.1002/bjs5.50208.

  • Søreide, Kjetil; Nymo, Linn Såve; Kleive, Dyre; Olsen, Frank; Lassen, Kristoffer. Variation in use of open and laparoscopic distal pancreatectomy and associated outcome metrics in a universal health care system. Pancreatology (Print) 2019; Volum 19 (6). ISSN 1424-3903.s 880 - 887.s doi: 10.1016/j.pan.2019.07.047.

  • Skeie, Eli; Tangvik, Randi Julie; Nymo, Linn Såve; Harthug, Stig; Lassen, Kristoffer; Viste, Asgaut. Weight loss and BMI criteria in GLIM's definition of malnutrition is associated with postoperative complications following abdominal resections – Results from a National Quality Registry. Clinical Nutrition 2019. ISSN 0261-5614.s 1 - 7.s doi: 10.1016/j.clnu.2019.07.003.

  • Nymo, Linn Såve; Aabakken, Lars; Lassen, Kristoffer. Priority and prejudice: does low socioeconomic status bias waiting time for endoscopy? A blinded,randomized survey. Scandinavian Journal of Gastroenterology 2018; Volum 53 (5). ISSN 0036-5521.s 621 - 625.s doi: 10.1080/00365521.2017.1402207.

  • Lassen, Kristoffer; Nymo, Linn Såve; Olsen, Frank; Brudvik, Kristoffer Watten; Fretland, Åsmund Avdem; Søreide, Kjetil. Contemporary practice and short-term outcomes after liver resections in a complete national cohort. Langenbeck's archives of surgery (Print) 2018; Volum 404 (1). ISSN 1435-2443.s 11 - 19.s doi: 10.1007/s00423-018-1737-3.

  • Lassen, Kristoffer; Nymo, Linn Såve; Olsen, Frank; Søreide, Kjetil. Benchmarking of aggregated length of stay after open and laparoscopic surgery for cancers of the digestive system. BJS Open 2018 (2). ISSN 2474-9842.s 246 - 253.s doi: 10.1002/bjs5.67.

  • Nymo, Linn Såve; Norderval, Stig; Eriksen, Morten Tandberg; Wasmuth, Hans; Kørner, Hartwig; Bjørnbeth, Bjørn Atle; Moger, Thomas A. Waksvik; Viste, Asgaut; Lassen, Kristoffer. Short-term outcomes after elective colon cancer surgery: an observational study from the Norwegian registry for gastrointestinal and HPB surgery, NoRGast. Surgical Endoscopy 2018. ISSN 0930-2794.s 1 - 13.s doi: 10.1007/s00464-018-6575-4.

  • Søreide, Kjetil; Olsen, Frank; Nymo, Linn Såve; Kleive, Dyre; Lassen, Kristoffer. A nationwide cohort study of resection rates and short-term outcomes in open and laparoscopic distal pancreatectomy. HPB 2018. ISSN 1365-182X.s doi: 10.1016/j.hpb.2018.10.006.

  • Nymo, Linn Såve; Søreide, Kjetil; Kleive, Dyre; Olsen, Frank; Lassen, Kristoffer. The effect of centralization on short term outcomes of pancreatoduodenectomy in a universal health care system. HPB 2018. ISSN 1365-182X.s 1 - 9.s doi: 10.1016/j.hpb.2018.08.011.

  • Lassen, Kristoffer; Nymo, Linn Såve; Kørner, Hartwig; Thon, Kevin Otto; Grindstein, Torkil; Wasmuth, Hans; Moger, Thomas A Waksvik; Bjørnbeth, Bjørn Atle; Norderval, Stig; Eriksen, Morten Tandberg; Viste, Asgaut. The New National Registry for Gastrointestinal Surgery in Norway: NoRGast. Scandinavian Journal of Surgery 2018; Volum 107 (3). ISSN 1457-4969.s 201 - 207.s doi: 10.1177/1457496918766697.

  • Labori, Knut Jørgen; Lassen, Kristoffer; Hoem, Dag; Grønbech, Jon Erik; Søreide, Jon Arne; Mortensen, Kim Erlend; Smaaland, Rune; Sorbye, Halfdan; Verbeke, Caroline Sophie; Dueland, Svein. Neoadjuvant chemotherapy versus surgery first for resectable pancreatic cancer (Norwegian Pancreatic Cancer Trial - 1 (NorPACT-1)) – study protocol for a national multicentre randomized controlled trial. BMC Surgery 2017; Volum 17 (1). ISSN 1471-2482.s doi: 10.1186/s12893-017-0291-1.

  • Giske, Anneli; Nymo, Linn Såve; Fuskevåg, Ole-Martin; Amundsen, Siri; Simonsen, Gunnar Skov; Lassen, Kristoffer. Systemic antibiotic prophylaxis prior to gastrointestinal surgery – is oral administration of doxycycline and metronidazole adequate?. Infectious Diseases 2017; Volum 49 (11-12). ISSN 2374-4235.s 785 - 791.s doi: 10.1080/23744235.2017.1342044.

  • Aahlin, Eirik Kjus; Tranø, Gerd; Johns, N; Horn, Arild; Søreide, Jon Arne; Fearon, KC; Revhaug, Arthur; Lassen, Kristoffer. Health-related quality of life, cachexia and overall survival after major upper abdominal surgery: A prospective cohort study. Scandinavian Journal of Surgery 2016; Volum 106 (1). ISSN 1457-4969.s 40 - 46.s doi: 10.1177/1457496916645962.

  • Aahlin, Eirik Kjus; Olsen, Frank; Uleberg, Bård; Jacobsen, Bjarne K.; Lassen, Kristoffer. Major postoperative complications are associated with impaired long-term survival after gastro-esophageal and pancreatic cancer surgery: a complete national cohort study. BMC Surgery 2016; Volum 16:32. ISSN 1471-2482.s doi: 10.1186/s12893-016-0149-y.

  • Hughes, Michael; Coolsen, Mariëlle M.E.; Aahlin, Eirik Kjus; Harrison, Ewen M; McNally, Stephen J; Dejong, C. H. C; Lassen, Kristoffer; Wigmore, Stephen J. Attitudes of patients and care providers to enhanced recovery after surgery programs after major abdominal surgery. Journal of Surgical Research 2015; Volum 193 (1). ISSN 0022-4804.s 102 - 110.s doi: 10.1016/j.jss.2014.06.032.

  • Aahlin, Eirik Kjus; Tranø, Gerd; Johns, Neil; Horn, Arild; Søreide, Jon Arne; Fearon, Kenneth Christopher H.; Revhaug, Arthur; Lassen, Kristoffer. Risk factors, complications and survival after upper abdominal surgery: A prospective cohort study. BMC Surgery 2015; Volum 15:83. ISSN 1471-2482.s doi: 10.1186/s12893-015-0069-2.

  • Currie, Andrew; Burch, Jennifer; Jenkins, John T.; Faiz, Omar; Kennedy, Robin H.; Ljungqvist, Olle; Demartines, Nicolas; Hjern, Fredrik; Norderval, Stig; Lassen, Kristoffer; Revhaug, Arthur; Koczkas, Tomas; Nygren, Jonas; Gustafsson, Ulf; Kornfeld, Dan; Slim, Karem; Hill, Andrew; Soop, Mattias; Carlander, Johan; Lundberg, Owe; Fearon, Ken; Kennedy, Robin. The impact of enhanced recovery protocol compliance on elective colorectal cancer resection: Results from an international registry. Annals of Surgery 2015; Volum 261 (6). ISSN 0003-4932.s 1153 - 1159.s doi: 10.1097/SLA.0000000000001029.

  • Aahlin, Eirik Kjus; von Meyenfeldt, Maarten; Dejong, Cornelis H.C.; Ljungqvist, Olle; Fearon, Kenneth C.; Lobo, Dileep N; Revhaug, Arthur; Wigmore, Stephen J; Lassen, Kristoffer. Functional recovery is considered the most important target: a survey of dedicated professionals. (fulltekst) Perioperative Medicine 2014; Volum 3 (5). ISSN 2047-0525.s doi: 10.1186/2047-0525-3-5.

  • Mortensen, Kim Erlend; Nilsson, Magnus Frohm; Slim, Karem; Schäfer, Markus; Mariette, Christophe; Braga, Marco; Carli, Franco M.; Demartines, Nicolas; Griffin, S. Michael; Lassen, Kristoffer. Consensus guidelines for enhanced recovery after gastrectomy: Enhanced Recovery after Surgery (ERAS®) Society recommendations. British Journal of Surgery 2014; Volum 101 (10). ISSN 0007-1323.s 1209 - 1229.s doi: 10.1002/bjs.9582.

  • Fearon, Kenneth C.; Jenkins, John T.; Carli, Francesco; Lassen, Kristoffer. Patient optimization for gastrointestinal cancer surgery. British Journal of Surgery 2013; Volum 100 (1). ISSN 0007-1323.s 15 - 27.s doi: 10.1002/bjs.8988.

  • Cerantola, Yannick; Valerio, Massimo; Persson, Beata; Jichlinski, Patrice; Ljungqvist, Olle; Hubner, Martin; Kassouf, Wassim; Müller, Stig; Baldini, Gabriele; Carli, Francesco; Næsheim, Torvind; Ytrebø, Lars Marius; Revhaug, Arthur; Lassen, Kristoffer; Knutsen, Tore; Aarsæther, Erling Johan; Wiklund, Peter; Patel, Hitendra R.H.. Guidelines for perioperative care after radical cystectomy for bladder cancer: Enhanced Recovery After Surgery (ERAS®) society recommendations. Clinical Nutrition 2013; Volum 32 (6). ISSN 0261-5614.s 879 - 887.s doi: 10.1016/j.clnu.2013.09.014.

  • Lassen, Kristoffer; Coolsen, Mariëlle M.E.; Slim, Karem; Carli, Francesco; de Aguilar-Nascimento, Jose; Schäfer, Markus; Parks, Rowan W.; Fearon, Kenneth C.H.; Lobo, Dileep N; Demartines, Nicolas; Braga, Marco; Ljungqvist, Olle; Dejong, Cornelis H.C.. Guidelines for Perioperative Care for Pancreaticoduodenectomy: Enhanced Recovery After Surgery (ERAS((R))) Society Recommendations. World Journal of Surgery 2013; Volum 37 (2). ISSN 0364-2313.s 240 - 258.s doi: 10.1007/s00268-012-1771-1.

  • Coolsen, Mariëlle M.E.; Wong-Lun-Hing, Edgar M.; van Dam, Ronald M.; van der Wilt, Aart A.; Slim, Karem; Lassen, Kristoffer; Dejong, Cornelis H.C.. A systematic review of outcomes in patients undergoing liver surgery in an enhanced recovery after surgery pathways. HPB 2013; Volum 15 (4). ISSN 1365-182X.s 245 - 251.s doi: 10.1111/j.1477-2574.2012.00572.x.

  • Coolsen, Mariëlle M.E.; van Dam, Ronald M.; van der Wilt, Aart A.; Slim, Karem; Lassen, Kristoffer; Dejong, Cornelis H.C.. Systematic Review and Meta-analysis of Enhanced Recovery After Pancreatic Surgery with Particular Emphasis on Pancreaticoduodenectomies. World Journal of Surgery 2013; Volum 37 (8). ISSN 0364-2313.s 1909 - 1918.s doi: 10.1007/s00268-013-2044-3.

  • Augestad, Knut Magne; Berntsen, Gro; Lassen, Kristoffer; Bellika, Johan Gustav; Wootton, Richard; Lindsetmo, Rolv-Ole. Standards for reporting randomized controlled trials in medical informatics: a systematic review of CONSORT adherence in RCTs on clinical decision support. (sammendrag) JAMIA Journal of the American Medical Informatics Association 2012; Volum 19 (1). ISSN 1067-5027.s 13 - 21.s doi: 10.1136/amiajnl-2011-000411.

  • Nygård, Ingvild; Lassen, Kristoffer; Kjæve, Jørn; Revhaug, Arthur. Mortality and Survival Rates after Elective Hepatic Surgery in a Low-Volume Centre Are Comparable to Those of High-Volume Centres. ISRN surgery 2012. ISSN 2090-5785.s doi: 10.5402/2012/783932.

  • Lassen, Kristoffer; Høye, Anne; Myrmel, Truls. Randomised Trials in Surgery: The Burden of Evidence. Reviews on recent clinical trials 2012; Volum 7 (3). ISSN 1574-8871.s 244 - 248.

  • van Dam, Ronald M.; Wong-Lun-Hing, Edgar M.; Van Breukelen, Gerard JP; Stoot, Jan HMB; van der Vorst, Joost R.; Bemelmans, Marc H.A.; Damink, Stephen WM Olde; Lassen, Kristoffer; Dejong, Cornelis HC. Open versus laparoscopic left lateral hepatic sectionectomy within an enhanced recovery ERAS (R) programme (ORANGE II - Trial): study protocol for a randomised controlled trial. Trials 2012; Volum 13. ISSN 1745-6215.s doi: 10.1186/1745-6215-13-54.

  • Lassen, Kristoffer; Coolsen, MME; Slim, Karem; Carli, Francesco; de Aguilar-Nascimento, Jose; Schäfer, Markus; Parks, Rowan W.; Fearson, Kenneth CH; Lobo, Dileep N; Demartines, Nicolas; Braga, Marco; Lungqvist, Olle; Dejong, C. H. C. Guidelines for perioperative care for pancreaticoduodenectomy: Enhanced Recovery After Surgery (ERAS (R)) Society recommendations. Clinical Nutrition 2012; Volum 6. ISSN 0261-5614.s 817 - 830.s doi: 10.1016/j.clnu.2012.08.011.

  • Robertson, Nichola; Gallacher, Peter James; Peel, Nathalie; Garden, James; Duxbury, Mark; Lassen, Kristoffer; Parks, Rowan W.. Implementation of an enhanced recovery programme following pancreaticoduodenectomy. HPB 2012; Volum 14 (10). ISSN 1365-182X.s 700 - 708.s doi: 10.1111/j.1477-2574.2012.00521.x.

  • Gustafsson, Ulf O.; Hausel, Jonatan; Thorell, Anders; Ljungqvist, Olle; Soop, Mattias; Revhaug, Arthur; Lassen, Kristoffer; Nygren, Jonas. Adherence to the enhanced recovery after surgery protocol and outcomes after colorectal cancer surgery. Archives of surgery (Chicago. 1960) 2011; Volum 146 (5). ISSN 0004-0010.s 571 - 577.s doi: 10.1001/archsurg.2010.309.

  • Hendry, PO; van Dam, RM; Bukkems, SFFW; McKeown, DW; Parks, RW; Preston, T; Dejong, CH; Garden, OJ; Fearon, KCH; ERAS, Group; Lassen, Kristoffer. Randomized clinical trial of laxatives and oral nutritional supplements within an enhanced recovery after surgery protocol following liver resection. British Journal of Surgery 2010; Volum 97. ISSN 0007-1323.s 1198 - 1206.s doi: 10.1002/bjs.7120.

  • Hendry, PO; Hausel, J; Nygren, J; Lassen, Kristoffer; Dejong, CH; Ljungqvist, O; Fearon, KC. Determinants of outcome after colorectal resection within an enhanced recovery programme. British Journal of Surgery 2009; Volum 96 (2). ISSN 0007-1323.s 197 - 205.s doi: 10.1002/bjs.6445.

  • Lassen, Kristoffer; Soop, M; Nygren, J; Cox, PB; Hendry, PO; Spies, C; Von Meyenfeldt, MF; Fearon, KC; Revhaug, Arthur; Norderval, Stig; Ljungqvist, O; Lobo, DN; Dejong, CH. Consensus Review of Optimal Perioperative Care in Colorectal Surgery Enhanced Recovery After Surgery (ERAS) Group Recommendations. Archives of surgery (Chicago. 1960) 2009; Volum 144 (10). ISSN 0004-0010.s 961 - 969.

  • van Dam, RM; Hendry, PO; Coolsen, MME; Bemelmans, MHA; Lassen, Kristoffer; Revhaug, Arthur; Fearon, KC; Garden, OJ; Dejong, CH. Initial experience with a multimodal enhanced recovery programme in patients undergoing liver resection. British Journal of Surgery 2008; Volum 95. ISSN 0007-1323.s 969 - 975.s doi: 10.1002/bjs.6227.

  • Lassen, Kristoffer; Kjæve, Jørn; Fetveit, T; Trano, G; Sigurdsson, HK; Horn, A; Revhaug, Arthur. Allowing normal food at will after major upper gastrointestinal surgery does not increase morbidity - A randomized multicenter trial. Annals of Surgery 2008; Volum 247. ISSN 0003-4932.s 721 - 729.s doi: 10.1097/SLA.0b013e31815cca68.

  • Lassen, Kristoffer. Drain after Pancreatoduodenectomy: Methodological Issues. Annals of Surgery 2018; Volum 267 (3). ISSN 0003-4932.s e58 - e58.s doi: 10.1097/SLA.0000000000002103.

  • Lassen, Kristoffer; Bjørnbeth, Bjørn Atle; Line, Pål Dag; Abildgaard, Andreas; Søreide, Jon Arne; Mortensen, Kim Erlend; Grønbech, Jon Erik; Bringeland, Erling Audun; Horn, Arild. Trump's ban on colleagues from Islamic countries. The Lancet 2017; Volum 389 (10071). ISSN 0140-6736.s 804 - 804.s doi: 10.1016/S0140-6736(17)30323-9.

  • Lassen, Kristoffer; Dejong, Cornelis H.C.; Revhaug, Arthur; Fearon, Ken; Lobo, Dileep N.; Ljungqvist, Olle. Food at will after pancreaticoduodenectomies. Re. "Perioperative nutritional support of patients undergoing pancreatic surgery in the age of ERAS". Nutrition - The International Journal of Applied and Basic Nutritional Sciences 2015; Volum 31 (7-8). ISSN 0899-9007.s 1057 - 1058.s doi: 10.1016/j.nut.2015.02.013.

  • Søreide, Jon Arne; Grønbech, Jon Erik; Lassen, Kristoffer; Dueland, Svein; Smaaland, Rune; Gladhaug, Ivar Prydz; Hauge, Truls; Olstad, Marit; Drolsum, Anders; Eide, Tor Jacob; Skår, Åse; Klemp, Marianne. Nasjonalt handlingsprogram med retningslinjer for diagnostikk, behandling og oppfølging av pasienter med pancreaskreft. (fulltekst) 2014 ISBN 978-82-8081-296-4.

  • Lassen, Kristoffer; Mortensen, Kim Erlend; Griffiths, Elizabeth P.; Johna, Samir; Nilsson, Magnus. Huge effect of arginine on survival in gastric cancer?. Journal of Cancer Research and Clinical Oncology 2014; Volum 140 (4). ISSN 0171-5216.s 685 - 685.s doi: 10.1007/s00432-014-1608-4.

  • Patel, Hitendra R.H.; Cerantola, Yannick; Valerio, Massimo; Persson, Beata; Jichlinski, Patrice; Ljungqvist, Olle; Hubner, Martin; Kassouf, Wassim; Müller, Stig; Baldini, Gabriele; Carli, Francesco; Næsheim, Torvind; Ytrebø, Lars Marius; Revhaug, Arthur; Lassen, Kristoffer; Knutsen, Tore; Aarsæther, Erling Johan; Wiklund, Peter; Catto, James. Enhanced recovery after surgery: are we ready, and can we afford not to implement these pathways for patients undergoing radical cystectomy?. (sammendrag) European Urology 2014; Volum 65 (2). ISSN 0302-2838.s 263 - 266.s doi: 10.1016/j.eururo.2013.10.011.

  • Lassen, Kristoffer; Ljungqvist, O. Pancreaticoduodenectomy: ERAS recommendations. Clinical Nutrition 2013; Volum 32 (5). ISSN 0261-5614.s 870 - 871.s doi: 10.1016/j.clnu.2013.04.019.

  • Lassen, Kristoffer. Perioperativ behandling: På sporet av anestesilegene. Tidsskrift for Den norske legeforening 2010; Volum 130 (15). ISSN 0029-2001.s 1449 - .s doi: 10.4045/tidsskr.10.0715.

  • Lassen, Kristoffer; Lobo, D.N.. Randomized controlled trial of preoperative oral carbohydrate treatment in major abdominal surgery (Br J Surg 2010; 97: 485-494). British Journal of Surgery 2010; Volum 97 (4). ISSN 0007-1323.s 494 - 495.s doi: 10.1002/bjs.7049.

  • Lassen, Kristoffer. Hvor ble det av anestesilegene?. Tidsskrift for Den norske legeforening 2010; Volum 130 (7). ISSN 0029-2001.s 720 - .

  • Lassen, Kristoffer. Intravenous fluid therapy. British Journal of Surgery 2009; Volum 96 (2). ISSN 0007-1323.s 123 - 124.s doi: 10.1002/bjs.6466.

  • Lassen, Kristoffer; Tranø, G; Horn, A; Revhaug, Arthur. Early oral feeding after major digestive surgery. Annals of Surgery 2008; Volum 248 (6). ISSN 0003-4932.s 1109 - 1110.s doi: 10.1097/SLA.0b013e31818f1715.

  • Lassen, Kristoffer. Postoperativ enteral ernæring eller mat etter stor, øvre bukkirurgi. Intensivdagen 2007-04-19 - 2007.

  • Lassen, Kristoffer. Drain after Pancreatoduodenectomy: Methodological Issues. Annals of Surgery 2018; Volum 267 (3). ISSN 0003-4932.s e58 - e58.s doi: 10.1097/SLA.0000000000002103.

  • Lassen, Kristoffer; Bjørnbeth, Bjørn Atle; Line, Pål Dag; Abildgaard, Andreas; Søreide, Jon Arne; Mortensen, Kim Erlend; Grønbech, Jon Erik; Bringeland, Erling Audun; Horn, Arild. Trump's ban on colleagues from Islamic countries. The Lancet 2017; Volum 389 (10071). ISSN 0140-6736.s 804 - 804.s doi: 10.1016/S0140-6736(17)30323-9.

  • Lassen, Kristoffer; Dejong, Cornelis H.C.; Revhaug, Arthur; Fearon, Ken; Lobo, Dileep N.; Ljungqvist, Olle. Food at will after pancreaticoduodenectomies. Re. "Perioperative nutritional support of patients undergoing pancreatic surgery in the age of ERAS". Nutrition - The International Journal of Applied and Basic Nutritional Sciences 2015; Volum 31 (7-8). ISSN 0899-9007.s 1057 - 1058.s doi: 10.1016/j.nut.2015.02.013.

  • Søreide, Jon Arne; Grønbech, Jon Erik; Lassen, Kristoffer; Dueland, Svein; Smaaland, Rune; Gladhaug, Ivar Prydz; Hauge, Truls; Olstad, Marit; Drolsum, Anders; Eide, Tor Jacob; Skår, Åse; Klemp, Marianne. Nasjonalt handlingsprogram med retningslinjer for diagnostikk, behandling og oppfølging av pasienter med pancreaskreft. (fulltekst) 2014 ISBN 978-82-8081-296-4.

  • Lassen, Kristoffer; Mortensen, Kim Erlend; Griffiths, Elizabeth P.; Johna, Samir; Nilsson, Magnus. Huge effect of arginine on survival in gastric cancer?. Journal of Cancer Research and Clinical Oncology 2014; Volum 140 (4). ISSN 0171-5216.s 685 - 685.s doi: 10.1007/s00432-014-1608-4.

  • Patel, Hitendra R.H.; Cerantola, Yannick; Valerio, Massimo; Persson, Beata; Jichlinski, Patrice; Ljungqvist, Olle; Hubner, Martin; Kassouf, Wassim; Müller, Stig; Baldini, Gabriele; Carli, Francesco; Næsheim, Torvind; Ytrebø, Lars Marius; Revhaug, Arthur; Lassen, Kristoffer; Knutsen, Tore; Aarsæther, Erling Johan; Wiklund, Peter; Catto, James. Enhanced recovery after surgery: are we ready, and can we afford not to implement these pathways for patients undergoing radical cystectomy?. (sammendrag) European Urology 2014; Volum 65 (2). ISSN 0302-2838.s 263 - 266.s doi: 10.1016/j.eururo.2013.10.011.

  • Lassen, Kristoffer; Ljungqvist, O. Pancreaticoduodenectomy: ERAS recommendations. Clinical Nutrition 2013; Volum 32 (5). ISSN 0261-5614.s 870 - 871.s doi: 10.1016/j.clnu.2013.04.019.

  • Lassen, Kristoffer. Perioperativ behandling: På sporet av anestesilegene. Tidsskrift for Den norske legeforening 2010; Volum 130 (15). ISSN 0029-2001.s 1449 - .s doi: 10.4045/tidsskr.10.0715.

  • Lassen, Kristoffer; Lobo, D.N.. Randomized controlled trial of preoperative oral carbohydrate treatment in major abdominal surgery (Br J Surg 2010; 97: 485-494). British Journal of Surgery 2010; Volum 97 (4). ISSN 0007-1323.s 494 - 495.s doi: 10.1002/bjs.7049.

  • Lassen, Kristoffer. Hvor ble det av anestesilegene?. Tidsskrift for Den norske legeforening 2010; Volum 130 (7). ISSN 0029-2001.s 720 - .

  • Lassen, Kristoffer. Intravenous fluid therapy. British Journal of Surgery 2009; Volum 96 (2). ISSN 0007-1323.s 123 - 124.s doi: 10.1002/bjs.6466.

  • Lassen, Kristoffer; Tranø, G; Horn, A; Revhaug, Arthur. Early oral feeding after major digestive surgery. Annals of Surgery 2008; Volum 248 (6). ISSN 0003-4932.s 1109 - 1110.s doi: 10.1097/SLA.0b013e31818f1715.

  • Lassen, Kristoffer. Postoperativ enteral ernæring eller mat etter stor, øvre bukkirurgi. Intensivdagen 2007-04-19 - 2007.

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