• E-mailFrank.Pfeffer@uib.no
  • Phone+47 55 97 29 16
  • Visitor Address
    Haukeland Universitetssykehus Laboratoriebygget, 7. etg. Heis øst
    5009 Bergen
  • Postal Address
    Postboks 7804
    5020 Bergen
Academic article
  • Show author(s) (2023). Translation and validation of the Norwegian version of the postoperative quality of recovery score QoR-15. Acta Anaesthesiologica Scandinavica.
  • Show author(s) (2022). Long-Term Outcome in a Phase II Study of Regional Hyperthermia Added to Preoperative Radiochemotherapy in Locally Advanced and Recurrent Rectal Adenocarcinomas. Cancers. 1-15.
  • Show author(s) (2021). Colorectal cancer incidence, mortality, and stage distribution in European countries in the colorectal cancer screening era: an international population-based study. The Lancet Oncology. 1002-1013.
  • Show author(s) (2020). Robotic low anterior resection: how to maximise success in difficult surgery. Techniques in Coloproctology. 747-755.
  • Show author(s) (2020). Evaluation of the stage classification of anal cancer by the TNM 8th version versus the TNM 7th version. Acta Oncologica. 1016-1023.
  • Show author(s) (2019). Transanal total mesorectal excision for rectal cancer has been suspended in Norway. British Journal of Surgery. 121-130.
  • Show author(s) (2019). Low rate of local recurrence detection by rectoscopy in follow-up of rectal cancer. Colorectal Disease. 254-260.
  • Show author(s) (2019). Endorectal ultrasound and magnetic resonance imaging for staging of early rectal cancers: how well does it work in practice? Acta Oncologica. S49-S54.
  • Show author(s) (2018). Risk factors for complications following introduction of radical surgery for colon cancer; a consecutive patient series. Scandinavian Journal of Surgery.
  • Show author(s) (2018). Rate of anastomotic leakage after rectal anastomosis depends on the definition: Pelvic abscesses are significant. Scandinavian Journal of Surgery. 1-9.
  • Show author(s) (2018). Randomized controlled trial of extended perioperative counseling in enhanced recovery after colorectal surgery. Diseases of the Colon & Rectum. 724-732.
  • Show author(s) (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. 151-160.
  • Show author(s) (2018). Interobserver Analysis of CEUS-Derived Perfusion in Fibrotic and Inflammatory Crohn's Disease. Ultraschall in der Medizin. 76-84.
  • Show author(s) (2017). Enhanced Recovery After Colorectal Surgery (ERAS) in Elderly Patients Is Feasible and Achieves Similar Results as in Younger Patients. Gerontology and geriatric medicine. 8 pages.
  • Show author(s) (2016). Pre- and postoperative stoma education and guidance within an enhanced recovery after surgery (ERAS) programme reduces length of hospital stay in colorectal surgery. International Journal of Surgery (IJS). 121-126.
  • Show author(s) (2016). Nationwide implementation of laparoscopic surgery for colon cancer: short-term outcomes and long-term survival in a population-based cohort. Surgical Endoscopy. 12 pages.
  • Show author(s) (2016). Multimodal therapy is feasible in elderly anal cancer patients. Acta Oncologica. 81-87.
  • Show author(s) (2016). Compliance with ERAS criteria and pre- and postoperative counselling affect length of hospital stay in colorectal surgery: results of a randomized controlled trial. Colorectal Disease. 603-611.
  • Show author(s) (2016). Bowel function and quality of life after superior mesenteric nerve plexus transection in right colectomy with D3 extended mesenterectomy. Techniques in Coloproctology. 1-9.
  • Show author(s) (2015). Validity of Norwegian Rectal Cancer Registry data at a major university hospital 1997-2005. Acta Oncologica. 1723-1728.
  • Show author(s) (2015). Strain Elastography Evaluation of Rectal Tumors: Inter- and Intraobserver Reproducibility. Ultraschall in der Medizin. 611-617.
  • Show author(s) (2015). Nationwide improvement of rectal cancer treatment outcomes in Norway, 1993-2010. Acta Oncologica. 1714-1722.
  • Show author(s) (2015). Endorectal ultrasonography, strain elastography and MRI differentiation of rectal adenomas and adenocarcinomas. Colorectal Disease. 124-131.
  • Show author(s) (2015). Combined endorectal ultrasonography and strain elastography for the staging of early rectal cancer. Colorectal Disease. 50-56.
  • Show author(s) (2013). Quantitative contrast-enhanced ultrasound comparison between inflammatory and fibrotic lesions in patients with Crohn's Disease. Ultrasound in Medicine and Biology. 1197-1206.
  • Show author(s) (2019). Norwegian moratorium on transanal total mesorectal excision. British Journal of Surgery. 1120-1121.
  • Show author(s) (2015). Twenty-five years with adjuvant chemotherapy for colon cancer--a continuous evolving concept. Acta Oncologica. 1-4.
Short communication
  • Show author(s) (2016). Surveying complaints after colorectal surgery. Tidsskrift for Den norske legeforening.
Letter to the editor
  • Show author(s) (2019). Author response to: Comments on: Norwegian moratorium on transanal total mesorectal excision. British Journal of Surgery. 1855.
Doctoral dissertation
  • Show author(s) (2017). Enhanced recovery after colorectal surgery – a randomized study of optimized perioperative treatment with an emphasis on patient counselling.
Academic chapter/article/Conference paper
  • Show author(s) (2017). Kapitell Transanale endoskopische Resektion. 322 pages.
  • Show author(s) (2013). Perfusion differences and interobserver variation measured with CEUS in patients with Crohn’s disease with fibrosis and inflammation. 5 pages.
  • Show author(s) (2013). Does GEWF solution improve lymph node harvest in colorectal cancer specimens with and without neoadjuvant therapy? Virchows Archiv. 210-211.
  • Show author(s) (2022). Cancer patients ≥80 years of age admitted for surgical treatment – Baseline characteristics from the elderly somatic cancer patient study (ELDSOCA).
  • Show author(s) (2019). Helse og livskvalitet hos kognitivt intakte elektive kreftpasienter over 80 år .
Academic literature review
  • Show author(s) (2021). Characteristics of Early-Onset vs Late-Onset Colorectal Cancer: A Review. JAMA Surgery. 865-874.
  • Show author(s) (2019). EFSUMB recommendations for gastrointestinal ultrasound part 3: Endorectal, endoanal and perineal ultrasound. Ultrasound International Open. E34-E51.

More information in national current research information system (CRIStin)