• Automated spectrophotometric bicarbonate analysis in duodenal juice compared to the back titration method 

      Erchinger, Friedemann Georg; Engjom, Trond; Gudbrandsen, Oddrun Anita; Tjora, Erling; Gilja, Odd Helge; Dimcevski, Georg Gjorgji (Peer reviewed; Journal article, 2016-02-03)
      Objectives We have recently evaluated a short endoscopic secretin test for exocrine pancreatic function. Bicarbonate concentration in duodenal juice is an important parameter in this test. Measurement of bicarbonate by ...
    • Diagnostic accuracy of a short endoscopic secretin test in patients with cystic fibrosis 

      Engjom, Trond; Erchinger, Friedemann Georg; Lærum, Birger Norderud; Tjora, Erling; Aksnes, Lage; Gilja, Odd Helge; Dimcevski, Georg Gjorgji (Peer reviewed; Journal article, 2015-02-16)
      Objective: Short endoscopic secretin tests for exocrine pancreatic function are not properly evaluated in cystic fibrosis (CF). Methods: Patients with CF and healthy controls (HCs) underwent endoscopic collection of duodenal ...
    • Diagnostic accuracy of transabdominal ultrasound in chronic pancreatitis 

      Engjom, Trond; Sangnes, Dag André; Havre, Roald Flesland; Erchinger, Friedemann Georg; Pham, Khanh Do-Cong; Haldorsen, Ingfrid S.; Gilja, Odd Helge; Dimcevski, Georg Gjorgji (Peer reviewed; Journal article, 2017-04)
      The performance of transabdominal ultrasound (US) in chronic pancreatitis (CP) following the advances in US technology made during recent decades has not been explored. Our aim in this prospective study was to evaluate the ...
    • Fecal fat analyses in chronic pancreatitis importance of fat ingestion before stool collection 

      Erchinger, Friedemann Georg; Engjom, Trond; Jurmy, Palwasha; Tjora, Erling; Gilja, Odd Helge; Dimcevski, Georg Gjorgji (Peer reviewed; Journal article, 2017-01-17)
      Objective: Quantitative determination of fecal fat still is the gold standard for measuring malabsorption. We evaluated the importance of standardized food intake before and under the collection of feces. Material and ...
    • KRAS mutation analysis by droplet digital PCR of duodenal juice from patients with MODY8 and other pancreatic diseases 

      Choi, Man Hung; Tjora, Erling; Forthun, Rakel Brendsdal; Engjom, Trond; Ræder, Helge; Hovland, Randi; Molven, Anders (Journal article; Peer reviewed, 2021)
      Background Maturity-onset diabetes of the young type 8 (MODY8 or CEL-MODY) is an inherited pancreatic disease characterized by chronic inflammation of the pancreas and diabetes. It is not known whether MODY8 patients ...
    • Pancreatic exocrine insufficiency in diabetes is associated with autonomic dysfunction 

      Sangnes, Dag André; Bergmann, Elisabeth Sandvik; Moss, Rose Marie; Engjom, Trond; Søfteland, Eirik Wigtil (Journal article; Peer reviewed, 2021)
      Objectives: Pancreatic exocrine insufficiency (PEI) is prevalent in diabetes. Pathophysiological theories imply autoimmune destruction, lack of trophic effects of insulin or impaired neuronal stimulation, but the relationship ...
    • Secretin-stimulated ultrasound estimation of pancreatic secretion in cystic fibrosis validated by magnetic resonance imaging 

      Engjom, Trond; Tjora, Erling; Wathle, Gaute Kjellevold; Erchinger, Friedemann Georg; Lærum, Birger Norderud; Gilja, Odd Helge; Haldorsen, Ingfrid S.; Dimcevski, Georg Gjorgji (Peer reviewed; Journal article, 2018-04)
      Objectives: Secretin-stimulated magnetic resonance imaging (s-MRI) is the best validated radiological modality assessing pancreatic secretion. The purpose of this study was to compare volume output measures from ...
    • Ultrasound echo-intensity predicts severe Pancreatic affection in cystic fibrosis patients 

      Engjom, Trond; Erchinger, Friedemann Georg; Lærum, Birger Norderud; Tjora, Erling; Gilja, Odd Helge; Dimcevski, Georg Gjorgji (Peer reviewed; Journal article, 2015-03-24)
      Background: Pancreatic destruction affects the majority of patients with cystic fibrosis. We aimed to relate ultrasound findings to exocrine pancreatic function and cystic fibrosis genotype. Methods: Patients with cystic ...