Ola Reiertsen

• Kazaryan, Airazat M.; Solberg, Ingeborg Lodden; Aghayan, Davit; Sahakyan, Mushegh A; Reiertsen, Ola & Semikov, Vasiliy I [Show all 8 contributors for this article] (2019). Does tumor size influence the outcome of laparoscopic distal pancreatectomy? HPB. ISSN 1365-182X. p. 1–9. doi: 10.1016/j.hpb.2019.11.014. Full text in Research Archive
• Willard, Christer-Daniel; Kjæstad, Erik; Stimec, Bojan; Edwin, Bjørn; Ignjatovic, Dejan & Øresland, Tom [Show all 32 contributors for this article] (2018). Preoperative anatomical road mapping reduces variability of operating time, estimated blood loss, and lymph node yield in right colectomy with extended D3 mesenterectomy for cancer. International Journal of Colorectal Disease. ISSN 0179-1958. 34(1), p. 151–160. doi: 10.1007/s00384-018-3177-5.
• Elstad, Jon Ivar & Reiertsen, Ola (2018). Sykehusinnleggelser de tre siste leveårene. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 138(9). doi: 10.4045/tidsskr.17.0605. Show summary

  BAKGRUNN Kunnskap om sykehusbruk i livets sluttfase er nyttig for å forstå behovet for sykehustjenester. MATERIALE OG METODE Registeropplysninger fra Statistisk sentralbyrå og Norsk pasientregister er brukt for å analysere tallet på innleggelser ved somatiske sykehus de siste tre leveårene blant individer som døde i alderen 56–95 år. RESULTATER Analyseutvalget besto av 35 954 individer som hadde 136 484 innleggelser i observasjonsperioden. De som døde da de var 56–65 år hadde 5,2 innleggelser i gjennomsnitt de siste tre leveårene, mot 2,8 for dødsalder 86–95 år. 14,1 % hadde ingen innleggelser, mens 13,3 % hadde åtte eller flere. De som døde på grunn av ondartede svulster hadde 5,6 innleggelser i gjennomsnitt, mot 4,2 hvis dødsfallet skyldtes åndedrettslidelser, og 3,1 om årsaken var sirkulasjonssykdom. FORTOLKNING Krevende behandlinger er antatt å ha mindre sjanse for å lykkes blant eldre pasienter. Dette kan være en grunn til færre sykehusinnleggelser i livets sluttfase blant 80- og 90-åringer enn blant de som døde i 60- og 70-årsalderen. Gjennomsnittsalder ved død vil øke etter hvert som levealderen stiger, og derfor vil aldersvariasjonen i sykehusinnleggelser de siste leveårene ha betydning for behovet for sykehusinnleggelser.

• Shanmugarajah, Inthujan; Solhaug, Marianne; Aslam, Omeir & Reiertsen, Ola (2017). Efficacy and safety assessment of ERCP in patients with malignant biliary obstruction. Acta Gastro-Enterologica Belgica. ISSN 1784-3227. 80(4), p. 487–491.
• Dam-Larsen, Sanne; Darkahi, Bahman; Glad, Arne; Gleditsch, Dagfinn; Gustavsson, Lena & Halttunen, Jorma [Show all 11 contributors for this article] (2015). Best practice in placement of percutaneous endoscopic gastrostomy with jejunal extension tube for continuous infusion of levodopa carbidopa intestinal gel in the treatment of selected patients with Parkinson's disease in the Nordic region. Scandinavian Journal of Gastroenterology. ISSN 0036-5521. 50(12), p. 1500–1507. doi: 10.3109/00365521.2015.1055793.
• Lambrecht, Jan Roland; Larsen, Stein Gunnar; Reiertsen, Ola; Vaktskjold, Arild; Julsrud, Lars & Flatmark, Kjersti (2015). Prophylactic mesh at end-colostomy construction reduces parastomal hernia rate: a randomized trial. Colorectal Disease. ISSN 1462-8910. 17(10), p. O191–O197. doi: 10.1111/codi.13065. Full text in Research Archive Show summary

  Aim Parastomal hernia (PSH) is the most common complication of an end-colostomy and about one-quarter of patients need operative repair, which is often unsuccessful. A randomized trial was carried out to compare the results of using mesh or no mesh at the time of formation of a colostomy with the clinical identification of PSH as the primary outcome. Method In this two-centre randomized trial (Oslo University Hospital and Sykehuset Innlandet Hospital Trust, Norway), patients with rectal cancer undergoing open pelvic surgery were randomized to receive a retromuscular synthetic mesh (study group, n = 32) or no mesh (control group, n = 26) at the time of end-colostomy formation. Postoperative follow up was not blinded and included clinical examination and routine CT. Results The median period of follow up was 40 (range: 84) months. There were no differences in demographic variables or complications between the study and control groups. PSH developed in two patients of the study group and in 12 of the control group [OR = 0.04 (95% CI: 0.01–0.30) and hazard ratio 0.134 (95% CI: 0.030–0.603); P < 0.001]. The number needed to treat to avoid one PSH was 2.5 patients. CT demonstrated an increase over time in the size of the fascial orifice in patients with PSH without mesh prophylaxis, in contrast to a stable size in patients with mesh and in the control patients who did not develop PSH. Conclusion The retromuscular insertion of synthetic mesh at the time of formation of an end-colostomy reduced the risk of PSH

• Lambrecht, Jan Roland; Vaktskjold, Arild; TRONDSEN, ERIK; Øyen, Ole & Reiertsen, Ola (2015). Laparoscopic ventral hernia repair: outcomes in primary versus incisional hernias: no effect of defect closure. Hernia. ISSN 1265-4906. 19(3), p. 479–486. doi: 10.1007/s10029-015-1345-x. Show summary

  Purpose Supposing divergent aetiology, we found it interesting to investigate outcomes between primary (PH) versus incisional (IH) hernias. In addition, we wanted to analyse the effect of defect closure and mesh fixation techniques. Methods 37 patients with PH and 70 with IH were enrolled in a prospective cohort-study, treated with laparoscopic ventral hernia repair (LVHR) and randomised to ± transfascial sutures. In addition, we analysed results from a retrospective study with 36 PH and 51 IH patients. Mean follow-up time was 38 months in the prospective study and 27 months in the retrospective study. Results 35 % of PH’s and 10 % of IH’s were recurrences after previous suture repair. No late infections or mesh removals occurred. Recurrence rates in the prospective study were 0 vs. 4.3 % (p = 0.55) and the complication rates were 16 vs. 27 % (p = 0.24) in favour of the PH cohort. The IH group had a mesh protrusion rate of 13 vs. 5 % in the PH group (p = 0.32), and significantly (p\0.01) larger hernias and adhesion score, longer operating time (100 vs. 79 min) and admission time (2.8 vs. 1.6 days). Closure of the hernia defect did not influence rate of seroma, pain at 2 months, protrusion or recurrence. An overall increased complication rate was seen after defect closure (OR 3.42; CI 1.25–9.33). Conclusions With PH, in comparison to IH treated with LVHR, no differences were observed regarding recurrence, protrusion or complication rates. Defect closure (raphe), when using absorbable suture, did not benefit long-term outcomes and caused a higher overall complication rate

• LUNDQVIST, CHRISTOFER; Beiske, Antonie Giæver; Reiertsen, Ola & Kristiansen, Ivar Sønbø (2014). Real life cost and quality of life associated with continuous intraduodenal levodopa infusion compared with oral treatment in Parkinson patients. Journal of Neurology. ISSN 0340-5354. 261(12), p. 2438–2445. doi: 10.1007/s00415-014-7515-4.
• Husby, Kristin; Yaqub, Sheraz; Helgeland, Merete; Reiertsen, Ola; Kravdal, Gunnhild & Hagve, Tor-Arne (2012). Nytte av prokalsitonin og nyøtrofil CD64 som markører for postoperativ infeksjon :. Bioingeniøren. ISSN 0801-6828. 47(4), p. 16–20.
• Faerden, Arne E.; Naimy, Nazir; Wiik, Pål; Reiertsen, Ola; Weyessa, Seyoum & Trønnes, Sigurd [Show all 8 contributors for this article] (2005). Total Mesorectal Excision for Rectal Cancer: Difference in Outcome for Low and High Rectal Cancer. Diseases of the Colon & Rectum. ISSN 0012-3706. 48(12), p. 2224–2231.
• Lundqvist, C; Nysted, T; Reiertsen, Ola; Grotli, R & Beiske, A. (2005). Kontinuerlig behandling med levodopa ved Parkinsons sykdom. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 125(19), p. 2638–2640.
• Reiertsen, Ola; Trondsen, Erik; Bakka, Arne Olav; Andersen, Ove K; Larsen, Stig & Rosseland, AR (1994). Prospective nonrandomized study of conventional versus laparoscopic appendectomy. World Journal of Surgery. ISSN 0364-2313. 18, p. 411–416.
• Bakka, Arne Olav; Reiertsen, Ola; Rosseland, Arne Retvedt; TRONDSEN, ERIK & Langebrekke, Anton (1991). Laparoskopisk appendektomi. Tidsskrift for Den norske legeforening. ISSN 0029-2001. p. 1714–1715.
• Dahlstrøm, Berit; Reiertsen, Ola & Rosseland, Arne (1990). Antibiotikaprofylakse ved akutt appendicitt. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 110, p. 1539–1540.
• Reiertsen, Ola; Bakka, Arne Olav; Trønnes, Sigurd & Gauperaa, Tore (1988). Routine double contrast barium enema and fiberoptic colonoscopy in the diagnosis of colorectal carcinoma. Acta Chirurgica Scandinavica. ISSN 0001-5482. 154, p. 53–56.
• Rosseland, AR; Bakka, Arne Olav & Reiertsen, Ola (1988). Endoscopic treatment of colorectal cancer. Scandinavian Journal of Gastroenterology, Supplement. ISSN 0085-5928. 23, p. 102–105.

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