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Blar i USN Open Archive på forfatter "Thiis-Evensen, Espen"

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    • Air and carbon dioxide volumes insufflated during colonoscopy 

      Bretthauer, Michael; Hoff, Geir; Thiis-Evensen, Espen; Huppertz-Hauss, Gert; Skovlund, Eva (Journal article; Peer reviewed, 2003)
      BACKGROUND: During colonoscopy, air or carbon dioxide is insufflated to secure adequate visualization of the colon, and endoscopy trainees are reminded to use as little gas as possible to avoid patient discomfort. However, ...
    • Impact of a colonoscopic screening examination for colorectal cancer on later utilization of distal GI endoscopies 

      Thiis-Evensen, Espen; Seip, Birgitte; Vatn, Morten H.; Hoff, Geir (Journal article; Peer reviewed, 2006)
      Background: Colonoscopic screening for colorectal cancer is being implemented in an increasing number of countries. This might lead to a demand for colonoscopies that could outstrip supply. Objective: We wanted to investigate ...
    • 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) 

      Hoff, Geir; Grotmol, Tom; Thiis-Evensen, Espen; Bretthauer, Michael; Gondal, Ghous G.; Vatn, Morten H. (Journal article; Peer reviewed, 2004)
      BACKGROUND: Screening for colorectal cancer (CRC) using guaiac based faecal occult blood tests (FOBT) has an estimated programme sensitivity of >60% but <30% for strictly asymptomatic CRC in a single screening round. In ...
    • Use of a disposable sheath system for flexible sigmoidoscopy in decentralized colorectal cancer screening 

      Bretthauer, Michael; Hoff, Geir; Thiis-Evensen, Espen; Grotmol, Tom; Larsen, Inger Kristin; Kjellevold, Øystein; Skovlund, Eva (Journal article; Peer reviewed, 2002)
      Background and Study Aims: To prevent transmission of infectious agents and to reduce instrument reprocessing time, the use of disposable sheath systems instead of conventionally reprocessed endoscopes has been promoted ...

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