Geir Hoff

Summary

Country: Norway

Publications

  1. ncbi request reprint Colorectal cancer screening in an expanding panorama of screening programmes
    Geir Hoff
    Cancer Registry of Norway, 5313 Majorstuen, 0304 Oslo, Norway
    Best Pract Res Clin Anaesthesiol 24:521-7. 2010
  2. ncbi request reprint [Explosive environment]
    Geir Hoff
    Seksjon for mage og tarmsykdommer, Sykehuset Telemark, 3710 Skien
    Tidsskr Nor Laegeforen 127:1791. 2007
  3. doi request reprint Incontinence after colonoscopy--an unrecognized and preventable problem. A cross-sectional study from the Gastronet quality assurance program
    G Hoff
    Department of Medicine, Telemark Hospital, 3710 Skien, Norway
    Endoscopy 44:349-53. 2012
  4. pmc Gastronet survey on the use of one- or two-person technique for colonoscopy insertion
    Geir Hoff
    Dept of Medicine, Telemark Hospital, 3710 Skien, Norway
    BMC Gastroenterol 11:73. 2011
  5. ncbi request reprint Do undesirable effects of screening affect all-cause mortality in flexible sigmoidoscopy programmes? Experience from the Telemark Polyp Study 1983-1996
    G Hoff
    Department of Medicine, Telemark Central Hospital, Skien, Norway
    Eur J Cancer Prev 10:131-7. 2001
  6. doi request reprint Quality assurance as an integrated part of the electronic medical record - a prototype applied for colonoscopy
    Geir Hoff
    Cancer Registry of Norway, Oslo, Norway
    Scand J Gastroenterol 44:1259-65. 2009
  7. doi request reprint Colonoscope with a sub-distal hyper-flaccid segment for improved insertion at colonoscopy: a randomized study
    Geir Hoff
    Department of Medicine, Telemark Hospital, Skien, Norway
    Scand J Gastroenterol 46:104-8. 2011
  8. ncbi request reprint The Norwegian Gastronet project: Continuous quality improvement of colonoscopy in 14 Norwegian centres
    Geir Hoff
    Department of Medicine, Telemark Hospital Skien, Norway
    Scand J Gastroenterol 41:481-7. 2006
  9. pmc Appointments timed in proximity to annual milestones and compliance with screening: randomised controlled trial
    Geir Hoff
    Cancer Registry of Norway, Oslo, Norway
    BMJ 337:a2794. 2008
  10. doi request reprint Colorectal cancer screening in an expanding panorama of screening programmes
    Geir Hoff
    Cancer Registry of Norway, 5313 Majorstuen, 0304 Oslo, Norway
    Best Pract Res Clin Gastroenterol 24:521-7. 2010

Detail Information

Publications50

  1. ncbi request reprint Colorectal cancer screening in an expanding panorama of screening programmes
    Geir Hoff
    Cancer Registry of Norway, 5313 Majorstuen, 0304 Oslo, Norway
    Best Pract Res Clin Anaesthesiol 24:521-7. 2010
    ..Established and imminent screening programmes should be considered as natural platforms for randomised trial with commitment and responsibility to continuously improve the quality and effectiveness of the screening service provided...
  2. ncbi request reprint [Explosive environment]
    Geir Hoff
    Seksjon for mage og tarmsykdommer, Sykehuset Telemark, 3710 Skien
    Tidsskr Nor Laegeforen 127:1791. 2007
  3. doi request reprint Incontinence after colonoscopy--an unrecognized and preventable problem. A cross-sectional study from the Gastronet quality assurance program
    G Hoff
    Department of Medicine, Telemark Hospital, 3710 Skien, Norway
    Endoscopy 44:349-53. 2012
    ..The aim of the present study was to assess the risk of postcolonoscopy incontinence, and to investigate whether insufflation of CO₂ instead of air may reduce this risk, since it is easily absorbed through the bowel mucosa...
  4. pmc Gastronet survey on the use of one- or two-person technique for colonoscopy insertion
    Geir Hoff
    Dept of Medicine, Telemark Hospital, 3710 Skien, Norway
    BMC Gastroenterol 11:73. 2011
    ..Using the Norwegian national endoscopy quality assurance (QA) programme, Gastronet, we wanted to explore the extent of two-person technique practice and look into possible differences in performance and QA output measures...
  5. ncbi request reprint Do undesirable effects of screening affect all-cause mortality in flexible sigmoidoscopy programmes? Experience from the Telemark Polyp Study 1983-1996
    G Hoff
    Department of Medicine, Telemark Central Hospital, Skien, Norway
    Eur J Cancer Prev 10:131-7. 2001
    ..07). The observations suggest that flexible sigmoidoscopy screening may face an educational challenge to avoid unfavourable changes in the lifestyle of screenees, an effect that may more than outweigh the beneficial effect of screening...
  6. doi request reprint Quality assurance as an integrated part of the electronic medical record - a prototype applied for colonoscopy
    Geir Hoff
    Cancer Registry of Norway, Oslo, Norway
    Scand J Gastroenterol 44:1259-65. 2009
    ..Electronic medical records (EMRs) have not developed much beyond the days of typewritten journals when it comes to facilitating extraction of data for quality assurance (QA) and improvement of health-care performance...
  7. doi request reprint Colonoscope with a sub-distal hyper-flaccid segment for improved insertion at colonoscopy: a randomized study
    Geir Hoff
    Department of Medicine, Telemark Hospital, Skien, Norway
    Scand J Gastroenterol 46:104-8. 2011
    ..It is hypothesized that colonoscopes with a very flaccid segment immediately proximal to the distal bending tip might reduce this problem...
  8. ncbi request reprint The Norwegian Gastronet project: Continuous quality improvement of colonoscopy in 14 Norwegian centres
    Geir Hoff
    Department of Medicine, Telemark Hospital Skien, Norway
    Scand J Gastroenterol 41:481-7. 2006
    ..In this situation, it is particularly important to evaluate the quality of the service given. In this article we present our first year of experience with a quality network of endoscopy centres in Norway (Gastronet)...
  9. pmc Appointments timed in proximity to annual milestones and compliance with screening: randomised controlled trial
    Geir Hoff
    Cancer Registry of Norway, Oslo, Norway
    BMJ 337:a2794. 2008
    ..To investigate whether appointments for screening timed in proximity to annual milestones (birthdays, Christmas and New Year) may be used as a strategy to improve attendance for screening for colorectal cancer...
  10. doi request reprint Colorectal cancer screening in an expanding panorama of screening programmes
    Geir Hoff
    Cancer Registry of Norway, 5313 Majorstuen, 0304 Oslo, Norway
    Best Pract Res Clin Gastroenterol 24:521-7. 2010
    ..Established and imminent screening programmes should be considered as natural platforms for randomised trial with commitment and responsibility to continuously improve the quality and effectiveness of the screening service provided...
  11. ncbi request reprint Improvement in caecal intubation rate and pain reduction by using 3-dimensional magnetic imaging for unsedated colonoscopy: a randomized trial of patients referred for colonoscopy
    Geir Hoff
    Department of Medicine, Telemark Hospital, Skien, Norway
    Scand J Gastroenterol 42:885-9. 2007
    ..The aim of the present study was to evaluate the effect of MEI on caecal intubation and patient pain during unsedated colonoscopy performed by experienced and inexperienced colonoscopists...
  12. doi request reprint Contrasting US and European approaches to colorectal cancer screening: which is best?
    Geir Hoff
    Department of Medicine, Telemark Hospital, NO 3710 Skien, Norway
    Gut 59:407-14. 2010
    ....
  13. ncbi request reprint Evaluation of a novel colonoscope designed for easier passage through flexures: a randomized study
    G Hoff
    Department of Medicine, Telemark Hospital, Skien, Norway
    Endoscopy 37:1123-6. 2005
    ..In this study we investigated whether this function could be included in a standard colonoscope without jeopardizing general performance, particularly passage through the sigmoid colon...
  14. ncbi request reprint Public Awareness and Lobbying: Group 3 Report. ESGE/UEGF Colorectal Cancer--Public Awareness Campaign. The Public/Professional Interface Workshop: Oslo, Norway, June 20 - 22, 2003
    G Hoff
    The Cancer Registry of Norway, Montebello 0310, Oslo, Norway
    Endoscopy 36:359-61. 2004
  15. ncbi request reprint Short stricture of the rectum regressing on discontinuation of hormone replacement therapy: endoscopic appearance, multiple biopsies and clinical improvement insufficient for diagnosis
    Geir Hoff
    Telemark Hospital, Skien, Norway
    Scand J Gastroenterol 40:365-7. 2005
    ..Re-introduction of HRT again caused subileus. At surgery, there was no suspicion of malignant disease. Histological examination of the resection specimen did, however, show metastasis from the ovarian cancer...
  16. pmc Risk of colorectal cancer seven years after flexible sigmoidoscopy screening: randomised controlled trial
    Geir Hoff
    Norwegian Colorectal Cancer Prevention NORCCAP Centre, Cancer Registry of Norway, Montebello, NO 0310 Oslo, Norway
    BMJ 338:b1846. 2009
    ..To determine the risk of colorectal cancer after screening with flexible sigmoidoscopy...
  17. ncbi request reprint CRC screening: review of the evidence and suggestions on when and how to move on from randomized trials to screening programmes
    G Hoff
    Cancer Registry of Norway, Montebello, Oslo
    Scand J Gastroenterol 39:99-103. 2004
  18. pmc Testing for faecal calprotectin (PhiCal) in the Norwegian Colorectal Cancer Prevention trial on flexible sigmoidoscopy screening: comparison with an immunochemical test for occult blood (FlexSure OBT)
    G Hoff
    The Cancer Registry of Norway, Montebello, N 0310 Oslo, Norway
    Gut 53:1329-33. 2004
    ..In search for improved non-invasive tests for screening, we compared a test for faecal calprotectin (PhiCal) with a human haemoglobin immunochemical FOBT (FlexSure OBT)...
  19. ncbi request reprint Risk stratification to predict pain during unsedated colonoscopy: results of a multicenter cohort study
    Oyvind Holme
    Department of Medicine, Sorlandet Hospital Kristiansand, Kristiansand, Norway
    Endoscopy 45:691-6. 2013
    ..The aim of this study was to develop a risk stratification model of pre-examination risk factors to enable targeted sedation during colonoscopy...
  20. ncbi request reprint Impact of colorectal cancer screening on future lifestyle choices: a three-year randomized controlled trial
    Inger K Larsen
    The Cancer Registry of Norway, Institute of Population Based Cancer Research, Montebello, Norway
    Clin Gastroenterol Hepatol 5:477-83. 2007
    ..The aim of the present randomized controlled trial was to evaluate lifestyle changes in a group of individuals offered flexible sigmoidoscopy screening compared with a control group and also in relation to screening outcome...
  21. doi request reprint Sustaining the vitality of colonoscopy quality improvement programmes over time. Experience from the Norwegian Gastronet programme
    Birgitte Seip
    Department of Medicine, Telemark Hospital, Skien, Norway
    Scand J Gastroenterol 45:362-9. 2010
    ..The primary aim of this study was to identify factors associated with endoscopist compliance with the Norwegian QA programme for colonoscopies (Gastronet)...
  22. pmc Lifestyle as a predictor for colonic neoplasia in asymptomatic individuals
    Inger K Larsen
    The Cancer Registry of Norway, Institute of Population Based Cancer Research, Montebello, N 0310, Norway
    BMC Gastroenterol 6:5. 2006
    ..Aiming to see if the questionnaire was a useful tool in picking up high-risk individuals...
  23. ncbi request reprint [Systematic quality control programme for colonoscopy in an endoscopy centre in Norway]
    Michael Bretthauer
    Seksjon for mage og tarmsykdommer, Medisinsk klinikk, Sykehuset Telemark, 3710 Skien
    Tidsskr Nor Laegeforen 124:1402-5. 2004
    ..The quality of the procedure varies between centres and endoscopists. The aim of the present study was to describe a quality control programme for colonoscopy performance in a secondary care centre...
  24. ncbi request reprint Sensitivity of pain rating scales in an endoscopy trial
    Eva Skovlund
    Section of Medical Statistics, University of Oslo, Oslo, Norway
    Clin J Pain 21:292-6. 2005
    ..Both are considered reliable and valid, but previous studies regarding sensitivity of rating scales have lead to different conclusions, and there is no firm agreement as to the best scale to choose...
  25. pmc "Drop in" gastroscopy outpatient clinic--experience after 9 months
    Gert Huppertz-Hauss
    Department of Gastroenterology, Medical Clinic, Telemark Hospital, 3710 Skien, Norway
    BMC Gastroenterol 12:12. 2012
    ..Logistics handling referrals for gastroscopy may be more time consuming than the examination itself. For the patient, "drop in" gastroscopy may reduce uncertainty, inadequate therapy and time off work...
  26. ncbi request reprint [Politics and science in colorectal cancer screening]
    Michael Bretthauer
    Kretfregisteret, Montebello, N 0310 Oslo, Norge
    Ugeskr Laeger 168:2563-5. 2006
  27. pmc Improved breast cancer survival following introduction of an organized mammography screening program among both screened and unscreened women: a population-based cohort study
    Mette Kalager
    The Cancer Registry of Norway, P, O, B 5313 Majorstuen, N 0304 Oslo, Norway
    Breast Cancer Res 11:R44. 2009
    ..In Norway, a national mammography screening program was introduced among women aged 50 to 69 years during 1995/6 to 2004. Also during this time, multidisciplinary breast cancer care units were implemented...
  28. ncbi request reprint Lifestyle characteristics among participants in a Norwegian colorectal cancer screening trial
    Inger K Larsen
    Cancer Registry of Norway, Institute of Population Based Cancer Research, Oslo, Norway
    Eur J Cancer Prev 15:10-9. 2006
    ....
  29. doi request reprint Magnetic endoscopic imaging versus standard colonoscopy in a routine colonoscopy setting: a randomized, controlled trial
    Oyvind Holme
    Department of Medicine, Sorlandet Hospital Kristiansand, Kristiansand, Norway
    Gastrointest Endosc 73:1215-22. 2011
    ..The recently introduced magnetic endoscopic imaging (MEI) system provides a continuous, real-time image of the endoscope during the entire procedure...
  30. doi request reprint Nitrous oxide for analgesia in colonoscopy without sedation
    Magnus Løberg
    The Cancer Registry of Norway, Oslo, Norway
    Gastrointest Endosc 74:1347-53. 2011
    ..In spite of promising results in previous studies, nitrous oxide is rarely used at endoscopy centers around the world...
  31. ncbi request reprint Patients' satisfaction: an important factor in quality control of gastroscopies
    Birgitte Seip
    Department of Medicine, Telemark Hospital, Skien, Norway
    Scand J Gastroenterol 43:1004-11. 2008
    ..The aims of the present study were to evaluate OGD-related discomfort assessed by the patient and to identify the possibilities for improvement...
  32. pmc Different standards for healthy screenees than patients in routine clinics?
    Geir Hoff
    Geir Hoff, Department of Research and Development, Telemark Hospital, 3710 Skien, Norway
    World J Gastroenterol 19:8527-30. 2013
    ..The situation is quite different for patient worried about symptom. Thus, the standards set for evidence-based practice may be higher for screening than for routine clinics - a mechanism which may benefit patients in the long run. ..
  33. pmc A tissue-based comparative effectiveness analysis of biomarkers for early detection of colorectal tumors
    Deeqa Ahmed
    1 Department of Cancer Prevention, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway 2 Centre for Cancer Biomedicine, University of Oslo, Oslo, Norway
    Clin Transl Gastroenterol 3:e27. 2012
    ..In this study, we compared the performance of this novel epi-panel with that of previously identified DNA methylation markers in the same clinical tissue sample sets...
  34. pmc Meat, vegetables and genetic polymorphisms and the risk of colorectal carcinomas and adenomas
    Camilla F Skjelbred
    Department of Laboratory Medicine, Section of Medical Genetics, Telemark Hospital, N 3710 Skien, Norway
    BMC Cancer 7:228. 2007
    ..In this study we aimed to evaluate the role of dietary factors in combination with genetic factors in the different stages of colorectal carcinogenesis in a Norwegian population...
  35. pmc Identification of an epigenetic biomarker panel with high sensitivity and specificity for colorectal cancer and adenomas
    Guro E Lind
    Department of Cancer Prevention, Institute for Cancer Research, Oslo University Hospital Radiumhospitalet, Oslo, Norway
    Mol Cancer 10:85. 2011
    ..This study investigates a panel of epigenetic markers for the detection of colorectal cancer and adenomas...
  36. doi request reprint C-reactive protein: a predictive factor and marker of inflammation in inflammatory bowel disease. Results from a prospective population-based study
    M Henriksen
    Department of Internal Medicine, Østfold Hospital Moss, 1535 Moss, Norway
    Gut 57:1518-23. 2008
    ....
  37. ncbi request reprint Estimated prevalence of hereditary cancers and the need for surveillance in a Norwegian county, Telemark
    Astrid T Stormorken
    Section of Genetic Counselling, Department of Cancer Genetics, The Norwegian Radium Hospital, Oslo, Norway
    Scand J Gastroenterol 41:71-9. 2006
    ..The aim of the study was to estimate the prevalence of hereditary cancers and the need for surveillance in Telemark county, Norway...
  38. pmc Quality control in colorectal cancer screening: systematic microbiological investigation of endoscopes used in the NORCCAP (Norwegian Colorectal Cancer Prevention) trial
    Michael Bretthauer
    The Cancer Registry of Norway, 0310 Oslo, Norway
    BMC Gastroenterol 3:15. 2003
    ..Continuously, throughout a two-year screening period, series of microbiological samples were taken from cleaned ready-to-use endoscopes and cultured for bacterial growth...
  39. pmc The science and politics of colorectal cancer screening
    Geir Hoff
    Institute of Population Based Cancer Research, Oslo, Norway
    PLoS Med 3:e36; quiz e104. 2006
  40. ncbi request reprint Course of disease, drug treatment and health-related quality of life in patients with inflammatory bowel disease 5 years after initial diagnosis
    Tomm Bernklev
    Medical Department, Rikshospitalet University Hospital, Oslo, Norway
    Eur J Gastroenterol Hepatol 17:1037-45. 2005
    ..The aim was to investigate the influence of the course of disease, drug therapy, and relapse pattern on the patients' HRQOL...
  41. doi request reprint Clinical course during the first 10 years of ulcerative colitis: results from a population-based inception cohort (IBSEN Study)
    Inger Camilla Solberg
    Department of Gastroenterology, Ulleval University Hospital, Oslo, Norway
    Scand J Gastroenterol 44:431-40. 2009
    ..The aim of this study was to evaluate the course of UC in a population-based inception cohort during the first 10 years, and to identify prognostic risk factors based on information gathered at diagnosis...
  42. ncbi request reprint Re: Baseline findings of the Italian multicenter randomized controlled trial of "once-only sigmoidoscopy"--SCORE
    Geir Hoff
    J Natl Cancer Inst 95:1089-90; author reply 1090. 2003
  43. ncbi request reprint Screening for colorectal cancer
    Matti Hakama
    Finnish Cancer Registry Institute for Statistical and Epidemiological Cancer research, Helsinki, Finland
    Acta Oncol 44:425-39. 2005
    ..There is, however, only little evidence on the effectiveness of screening when run as a public health service and there is insufficient knowledge of harmful effects and costs, even in RCTs...
  44. ncbi request reprint [Colorectal cancer registry]
    Maria Gaard
    Avdeling for klinisk forskning, Kreftregisteret, 0310 Oslo
    Tidsskr Nor Laegeforen 127:2834-5. 2007
  45. ncbi request reprint [Politics and science in colorectal cancer screening]
    Michael Bretthauer
    Tidsskr Nor Laegeforen 126:1766-7. 2006
  46. ncbi request reprint [Prevention and early diagnosis of colorectal cancer]
    Michael Bretthauer
    Medisinsk avdeling, Seksjon for fordøyelsessykdommer, Rikshospitalet Radiumhospitalet, 0027 Oslo
    Tidsskr Nor Laegeforen 127:2688-91. 2007
    ..An increasing incidence is observed. CRC develops from benign adenomas in the colon over a long time. This paper reviews the evidence for drug prevention and screening for CRC...
  47. ncbi request reprint The use of CO2 in colonoscopy
    Michael Bretthauer
    Gastrointest Endosc 57:436-7; author reply 437-8. 2003
  48. ncbi request reprint [Quality improvement in Norwegian hospitals]
    Michael Bretthauer
    Tidsskr Nor Laegeforen 125:1150. 2005
  49. pmc Expression of NDRG2 is down-regulated in high-risk adenomas and colorectal carcinoma
    Anders Lorentzen
    Eucaryotic Cell Biology Research Group, Department of Science, Roskilde University, Roskilde, Denmark
    BMC Cancer 7:192. 2007
    ....
  50. ncbi request reprint [Do we really want to concentrate on research?]
    Geir Hoff
    Tidsskr Nor Laegeforen 126:1224. 2006