Blar i Bergen Open Research Archive på forfatter "Pfeffer, Frank"
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Assessment of postoperative circulating tumour DNA to predict early recurrence in patients with stage I–III right-sided colon cancer: prospective observational study
Lygre, Kristin Bentung; Forthun, Rakel Brendsdal; Høysæter, Trude; Hjelle, Sigrun Margrethe; Eide, Geir Egil; Gjertsen, Bjørn Tore; Pfeffer, Frank; Hovland, Randi (Journal article; Peer reviewed, 2024)Background Right-sided colon cancer (RCC) differs in mutation profile and risk of recurrence compared to distal colon cancer. Circulating tumour DNA (ctDNA) present after surgery can identify patients with residual ... -
Bowel function and quality of life after superior mesenteric nerve plexus transection in right colectomy with D3 extended mesenterectomy
Thorsen, Yngve; Stimec, Bojan V.; Andersen, Solveig Norheim; Lindstrøm, Jonas Christoffer; Pfeffer, Frank; Øresland, Tom; Ignjatovic, Dejan; RCC Study Group (Peer reviewed; Journal article, 2016)Background: The aim of this study was to ascertain the impact of injury to the superior mesenteric nerve plexus caused by right colectomy with D3 extended mesenterectomy as performed in the prospective multicenter trial: ... -
Combined endorectal ultrasonography and strain elastography for the staging of early rectal cancer
Waage, Jo Erling Riise; Bach, Simon; Pfeffer, Frank; Leh, Sabine Maria; Havre, Roald Flesland; Ødegaard, Svein; Baatrup, Gunnar (Peer reviewed; Journal article, 2015-01)Aim: Strain elastography is a novel approach to rectal tumour evaluation. The primary aim of this study was to correlate elastography to pT stages of rectal tumours and to assess the ability of the method to differentiate ... -
Complications after open and laparoscopic right-sided colectomy with central lymphadenectomy for colon cancer: randomized controlled trial
Lygre, Kristin Bentung; Eide, Geir Egil; Forsmo, Håvard Mjørud; Dicko, Aly; Storli, Kristian Eeg; Pfeffer, Frank (Journal article; Peer reviewed, 2023)Background A central lymphadenectomy in right-sided colon cancer involves dissection along the superior mesenteric axis, but the extent is debated due to a lack of consensus and the fear of major complications. This ... -
EFSUMB recommendations for gastrointestinal ultrasound part 3: Endorectal, endoanal and perineal ultrasound
Nürnberg, Dieter; Saftoiu, Adrian; Barreiros, Ana Paula; Burmester, Eike; Ivan, Elena Tatiana; Clevert, Dirk-André; Dietrich, Christoph F.; Gilja, Odd Helge; Lorentzen, Torben; Maconi, Giovanni; Mihmanli, Ismail; Nolsøe, Christian Pállson; Pfeffer, Frank; Rafaelsen, Søren Rafael; Spârchez, Zeno; Vilmann, Peter; Waage, Jo Erling Riise (Peer reviewed; Journal article, 2019)This article represents part 3 of the EFSUMB Recommendations and Guidelines for Gastrointestinal Ultrasound (GIUS). It provides an overview of the examination techniques recommended by experts in the field of endorectal/endoanal ... -
Endorectal ultrasonography, strain elastography and MRI differentiation of rectal adenomas and adenocarcinomas.
Waage, Jo Erling Riise; Leh, Sabine Maria; Røsler, Cornelia; Pfeffer, Frank; Bach, Simon; Havre, Roald Flesland; Haldorsen, Ingfrid S.; Ødegaard, Svein; Baatrup, Gunnar (Peer reviewed; Journal article, 2015-02)Aim Strain elastography is a method for recording tissue hardness. Strain in different areas may be compared using strain ratio (SR). The aims of this study were to validate a previously proposed SR cut-off value of 1.25 ... -
Enhanced Recovery After Colorectal Surgery (ERAS) in Elderly Patients Is Feasible and Achieves Similar Results as in Younger Patients
Forsmo, Håvard Mjørud; Erichsen, Christian; Rasdal, Anne; Kørner, Hartwig; Pfeffer, Frank (Peer reviewed; Journal article, 2017)Aim: Enhanced recovery after surgery (ERAS) is a multimodal approach that aims to optimize perioperative treatment. Whether elderly patients receiving colorectal surgery can adhere to and benefit from an ERAS approach is ... -
Long-Term Outcome in a Phase II Study of Regional Hyperthermia Added to Preoperative Radiochemotherapy in Locally Advanced and Recurrent Rectal Adenocarcinomas
Schem, Baard-Christian; Pfeffer, Frank; Ott, Martin Anton; Wiig, Johan N.; Sletteskog, Nils; Frøystein, Torbjørn; Myklebust, Mette Pernille; Leh, Sabine; Dahl, Olav; Mella, Olav (Journal article; Peer reviewed, 2022-01-29)Hyperthermia was added to standard preoperative chemoradiation for rectal adenocarcinomas in a phase II study. Patients with T3-4 N0-2 M0 rectal cancer or local recurrences were included. Radiation dose was 54 Gy combined ... -
Low rate of local recurrence detection by rectoscopy in follow-up of rectal cancer
Tronstad, Per Kristian; Simpson, Lise Valen Hume; Olsen, Bjørn Christian Elias Grova; Pfeffer, Frank; Karliczek, Anne (Peer reviewed; Journal article, 2020)Aim: The main aim of this study was to examine the effectiveness of rectoscopy for detecting local recurrence of rectal cancer in patients following low anterior resection. Method: This was a retrospective study of 201 ... -
Randomized Controlled Trial of Extended Perioperative Counseling in Enhanced Recovery After Colorectal Surgery
Forsmo, Håvard Mjørud; Erichsen, Christian; Rasdal, Anne; Tvinnereim, Jon Meyer; Körner, Hartwig; Pfeffer, Frank (Peer reviewed; Journal article, 2018-06)BACKGROUND: Enhanced recovery after surgery programs reduce the length of hospital stay in patients who undergo elective colorectal resection, but the reasons for this reduction are not well understood. OBJECTIVE: The aim ... -
Short and equal vascular stump length after standardized laparoscopic and open surgery with central lymphadenectomy for right-sided colon cancer
Lygre, Kristin Bentung; Eide, Geir Egil; Liedenbaum, Marjolein H.; Augland, Idun Magdalene; Haldorsen, Ingfrid S.; Pfeffer, Frank (Journal article; Peer reviewed, 2024)