Jens Kjeldsen

Physician, Ph.D.

  • Campusvej 55

    5230 Odense M

    Denmark

20002020
If you made any changes in Pure these will be visible here soon.

Research Output 2000 2020

Book chapter

Fordøjelseskanalens sygdomme

Schaffalitzky, O. B., Bytzer, P., Havelund, T., Kjeldsen, A. D., Kjeldsen, J. & Rumessen, J., 2019, Medicinsk Kompendium. de Muckadell, O. B. S., Hastrup Svendsen, J. & Vilstrup, H. (eds.). 19. ed. Munksgaard , Vol. 1. p. 939-1087

Research output: Chapter in Book/Report/Conference proceedingBook chapterEducation

Kroniske inflammatoriske tarmlidelser

Kjeldsen, J., Dahlerup, J. F., Christensen, L. A. & Agnholt, J. S., 2010, Immuninflammatoriske sygdomme - baggrund og biologiske lægemidler. FADL's Forlag, p. 163-172 10 p.

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

Midler mod fordøjelseskanalens sygdomme

Kjeldsen, J., 2019, Basal og klinisk farmakologi. Brøsen, K., Dalhoff, K. & Simonsen, U. (eds.). 6. ed. FADL's Forlag, p. 295-316

Research output: Chapter in Book/Report/Conference proceedingBook chapterEducationpeer-review

Comment/debate

Letter: vedolizumab drug levels in cord and maternal blood in women with inflammatory bowel disease

Julsgaard, M., Kjeldsen, J., Brock, B. & Baumgart, D. C., Aug 2018, In : Alimentary Pharmacology and Therapeutics. 48, 3, p. 386-388

Research output: Contribution to journalComment/debateResearch

Letter: number of treatments with anti-TNF-α and reoperations in inflammatory bowel disease

Nørgård, B. M., Nielsen, J., Kjeldsen, J. & Qvist, N., 2013, In : Alimentary Pharmacology and Therapeutics. 37, 10, p. 1028-1029

Research output: Contribution to journalComment/debateResearchpeer-review

Vedolizumab Concentrations in the Breast Milk of Nursing Mothers With Inflammatory Bowel Disease

Julsgaard, M., Kjeldsen, J., Bibby, B. M., Brock, B. & Baumgart, D. C., Feb 2018, In : Gastroenterology. 154, 3, p. 752-754.e1

Research output: Contribution to journalComment/debateResearchpeer-review

Compendium/lecture notes

Medicinsk Kompendium: Indexredaktør

Kjeldsen, J., 2015

Research output: Book/anthology/thesis/reportCompendium/lecture notesEducation

Conference abstract for conference

Better Diagnostic Accuracy with Capsule Endoscopy Compared to MRI- and CT-enterography in Patients with Suspected or Newly Diagnosed Crohn's Disease

Dam Jensen, M., Nathan, T., Rafaelsen, S. R. & Kjeldsen, J., 2010. 1 p.

Research output: Contribution to conference without publisher/journalConference abstract for conferenceResearch

Ileocolonic Involvement and Diagnosis is Related to Fragments of the Extracellular Matrix Measured in Serum of Patients with Crohn's Disease

Mortensen, J. H., Jensen, M. D., Kjeldsen, J., Krag, A., Karsdal, M. A. & Jensen, A-C. B., 2016.

Research output: Contribution to conference without publisher/journalConference abstract for conferenceResearchpeer-review

Open Access

Increased extracellular matrix proteins turn-over in patients with Crohn's disease

Godskesen, L. E., Jensen, M. D., Klinge, L., Mortensen, JH., Karsdal, M. A., Jensen, A-C. B., Krag, A. & Kjeldsen, J., 2014.

Research output: Contribution to conference without publisher/journalConference abstract for conferenceResearch

Is nutritional status evaluated prior to and during treatment in patients receiving supplementary PPN

Bilenko, A., Kjeldsen, J., Due, K. & Teisner, A., 17. Sep 2016.

Research output: Contribution to conference without publisher/journalConference abstract for conferenceResearch

Conference abstract in journal

Adalimumab and Infliximab levels in neonates correlate with duration of treatment in pregnancy (ERA study)

Julsgaard, M., Christensen, L. A., Gibson, P. R., Fallingborg, J., Gearry, R., Walsh, A., Kjeldsen, J., Connell, W., Sparrow, M. P., Radford-Smith, G., Andrews, J. M., Connor, S. J., Lawrence, I., Wildt, S., Moore, G. T., Svenningsen, L., Rosella, O., Grosen, A. & Bell, S. J., 2014, In : Journal of Gastroenterology and Hepatology. 29, S2, p. 117-118

Research output: Contribution to journalConference abstract in journalResearchpeer-review

Fecal calprotectin is equally sensitive in isolated colonic and small bowel Crohn’s disease

Jensen, M. D., Kjeldsen, J. & Nathan, T., 2011, In : Gastroenterology. 140, 5 Suppl. 1, p. S690

Research output: Contribution to journalConference abstract in journalResearch

Frequency and clinical impact of incidental findings at MRI of the small bowel in patients with suspected and known Crohn's disease

Dam Jensen, M., Kjeldsen, J., Nathan, T. & Rafaelsen, S. R., 2009, In : Journal of Crohn's and Colitis. p. 28-29

Research output: Contribution to journalConference abstract in journalResearch

Inter-observer Agreement for Detection of Small Bowel Crohn’s Disease with Capsule Endoscopy

Jensen, M. D., Nathan, T. & Kjeldsen, J., 2010, In : Gastroenterology.

Research output: Contribution to journalConference abstract in journalResearch

Low sensitivity of MR- and CT-enterography for detection of small bowel stenosis in patients with known Crohn’s disease

Jensen, M. D., Kjeldsen, J., Rafaelsen, S. R. & Nathan, T., 2011, In : Gastroenterology. 140, 5, Suppl 1, p. S759-760

Research output: Contribution to journalConference abstract in journalResearch

Matrix Metalloproteinase Degraded Biglycan (BGM) and Citrullinated and MMP-degraded Vimentin (VICM) differentiates Crohn’s disease from ulcerative colitis

Mortensen, J. H., Godskesen, L. E., Jensen, M. D., Klinge, L., Kjeldsen, J., Karsdal, M. A., Bay-Jensen, A-C. & Krag, A., 1. Feb 2015, In : Journal of Crohn's and Colitis. 9, suppl. 1., p. S118-S119 1 p.

Research output: Contribution to journalConference abstract in journalResearchpeer-review

Patients with suspected irritable bowel syndrome in primary care - Demographic and clinical characteristics

Begtrup, L. M., Engsbro, A. L. Ø., Kjeldsen, J., Kragstrup, J., Bytzer, P., Schaffalitzky de Muckadell, O. B. & Jarbøl, D. E., 2010, In : Scandinavian Journal of Gastroenterology. 45, supplement 247, p. 83-84 2 p.

Research output: Contribution to journalConference abstract in journalResearch

Post-operative use of anti-TNF alpha agents in patients with Crohn's disease and risk of re-operation: a nationwide cohort study

Kjeldsen, J., Nielsen, J., Larsen, M. D., Qvist, N. & Nørgård, B. M., 2015, In : Journal of Crohn's and Colitis. 9, S1, p. S16 1 p., OP026.

Research output: Contribution to journalConference abstract in journalResearchpeer-review

Open Access

Specific fragments of extracellular matrix proteins reflect disease activity in ulcerative colitis

Godskesen, L. E., Mortensen, J. H., Klinge, L., Jensen, M. D., Krag, A., Karsdal, M. A., Kjeldsen, J. & Jensen, A-C. B., May 2014, In : Gastroenterology. 146, 5 (Supplement 1), p. S-237 1 p., Sa1230.

Research output: Contribution to journalConference abstract in journalResearchpeer-review

Open Access

The yield of sigmoideoscopy and colonoscopy in patients refered with lower abdominal symptoms

Gildberg, R., Hansen, J. M. & Kjeldsen, J., 2008, In : Today in Medicine. Gastroenterology. 134, 1, p. 319 1 p.

Research output: Contribution to journalConference abstract in journalResearch

The yield of sigmoideoscopy and colonoscopy in patients referred with lower abdominal symptoms

Kjeldsen, J., Hansen, J. M. & Gildberg-Mortensen, R., 2008, In : Gastroenterology. 4, p. 319 1 p.

Research output: Contribution to journalConference abstract in journalResearch

Use of anti-TNF-alpha agents in relation to first-time surgery for ulcerative colitis and Crohn's disease during childhood

Larsen, M. D., Kjeldsen, J., Qvist, N., Nørgård, B. M. & Nielsen, J., 2015, In : Journal of Crohn's and Colitis. 9, S1, p. S8-S9 OP014.

Research output: Contribution to journalConference abstract in journalResearchpeer-review

Open Access
Editorial

Editorial: anti-TNF therapy-a double-edged sword? Authors' reply

Korzenik, J., Larsen, M. D., Nielsen, J., Kjeldsen, J. & Nørgård, B. M., 1. Oct 2019, In : Alimentary Pharmacology and Therapeutics. 50, 7, p. 823-824

Research output: Contribution to journalEditorialResearchpeer-review

Open Access
Journal article

[Cyclosporine treatment of patients with active ulcerative colitis refractory to high-dose glucocorticoid].

Kjeldsen, J., Wilson, B. V. & Knudsen, T., 2001, In : Ugeskrift for Laeger.

Research output: Contribution to journalJournal articleResearchpeer-review

94 Treatment of Secondary Infliximab Failure in Crohn's Disease Based on Serum Levels of Infliximab and Antibodies Against Infliximab: The Danish Study of Optimizing Infliximab Therapy in Crohn's Disease (Do It Crohn) Randomized Clinical Trial

Steenholdt, C., Brynskov, J., Thomsen, O., Munck, L. K., Fallingborg, J., Christensen, L. A., Pedersen, G., Kjeldsen, J., Jacobsen, B. A., Oxholm, A. S., Kjellberg, J., Bendtzen, K. & Ainsworth, M. A., 2013, In : Gastroenterology. 144, 5, Supplement 1, p. S-22

Research output: Contribution to journalJournal articleResearchpeer-review

Adalimumab in the treatment of chronic pouchitis. A randomized double-blind, placebo-controlled trial

Kjær, M. D., Qvist, N., Nordgaard-Lassen, I., Christensen, L. A. & Kjeldsen, J., 10. Feb 2019, In : Scandinavian Journal of Gastroenterology. 54, 2, p. 188-193

Research output: Contribution to journalJournal articleResearchpeer-review

Pouchitis
Placebos
Adalimumab
Colonic Pouches

A Danish cross-sectional study: autoimmune and chronic inflammatory disorders associated with Crohn's disease

Halling, M., Kjeldsen, J., Knudsen, T., Nielsen, J. & Hansen, L. K., 2016, In : Journal of Crohn's and Colitis.

Research output: Contribution to journalJournal articleResearchpeer-review

A Danish cross-sectional study: autoimmune and chronic inflammatory disorders associated with ulcerative colitis.

Halling, M., Knudsen, T., Kjeldsen, J., Nielsen, J. & Hansen, L. K., 2016, In : Journal of Crohn's and Colitis.

Research output: Contribution to journalJournal articleResearchpeer-review

116 Downloads (Pure)

Allocation of patients with liver cirrhosis and organ failure to intensive care: Systematic review and a proposal for clinical practice

Prier Lindvig, K., Søgaard Teisner, A., Kjeldsen, J., Strøm, T., Toft, P., Furhmann, V. & Krag, A., 7. Aug 2015, In : World Journal of Gastroenterology. 21, 29, p. 8964-8973

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Liver Cirrhosis
Intensive Care Units
PubMed
MEDLINE
Patient Selection

Anti-TNF-alpha Therapy in Late Pregnancy and the Risk of Adverse Birth Outcomes in Women with Inflammatory Bowel Disease

Kammerlander, H., Nielsen, J., Kjeldsen, J., Knudsen, T., Friedman, S. & Norgard, B., 2017, In : Inflammatory Bowel Diseases.

Research output: Contribution to journalJournal articleResearchpeer-review

Anti-TNF Therapy in Pregnant Women With Inflammatory Bowel Disease: Effects of Therapeutic Strategies on Disease Behavior and Birth Outcomes

Julsgaard, M., Hvas, C. L., Gearry, R. B., Gibson, P. R., Fallingborg, J., Sparrow, M. P., Bibby, B. M., Connell, W. R., Brown, S. J., Kamm, M. A., Lawrance, I. C., Vestergaard, T., Svenningsen, L., Baekdal, M., Kammerlander, H., Walsh, A., Boysen, T., Bampton, P., Radford-Smith, G., Kjeldsen, J. & 10 others, Andrews, J. M., Subramaniam, K., Moore, G. T., Jensen, N. M., Connor, S. J., Wildt, S., Wilson, B., Ellard, K., Christensen, L. A. & Bell, S. J., 1. Jan 2020, In : Inflammatory Bowel Diseases. 26, 1, p. 93-102

Research output: Contribution to journalJournal articleResearchpeer-review

Therapeutic Uses
Inflammatory Bowel Diseases
Pregnant Women
Tumor Necrosis Factor-alpha
Counseling

Anti-TNF-α Use During the Third Trimester of Pregnancy in Women with Moderate-severe Inflammatory Bowel Disease and the Risk of Preterm Birth and Low Birth Weight

Kammerlander, H., Nielsen, J., Knudsen, T., Kjeldsen, J., Friedman, S. & Norgard, B. M., 2017, In : Inflammatory Bowel Diseases. 23, 11, p. 1916–1923

Research output: Contribution to journalJournal articleResearchpeer-review

Premature Birth
Third Pregnancy Trimester
Low Birth Weight Infant
Inflammatory Bowel Diseases
Tumor Necrosis Factor-alpha
Irritable Bowel Syndrome
Quality of Life
Primary Health Care
Guidelines
Sigmoidoscopy

A rare cause of severe hepatomegaly with an improving outcome

Godskesen, L. E., Abildgaard, N., Kjeldsen, J. & Krag, A., 3. Apr 2014, In : BMJ Case Reports. 2014, 3 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Hepatomegaly
Alkaline Phosphatase
Liver Diseases
Quality of Life
Liver

Billeddiagnostiske og endoskopiske metoder ved Crohns sygdom i tyndtarmen

Translated title of the contribution: Diagnostic imaging and endoscopic methods in Crohn's disease of the small intestineJensen, M. D., Kjeldsen, J., Nathan, T. & Rafaelsen, S. R., 17. Aug 2009, In : Ugeskrift for læger. 171, 34, p. 2383-8 5 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Biologic therapy in inflammatory bowel disease

Theede, K., Dahlerup, J. F., Fallingborg, J., Hvas, C. L., Kjeldsen, J., Munck, L. K. & Nordgaard-Lassen, I., 2013, In : Danish Medical Journal. 60, 6, B4652.

Research output: Contribution to journalJournal articleResearchpeer-review

Inflammatory Bowel Diseases
Immunosuppressive Agents
Ulcerative Colitis
Crohn Disease

Ciclosporinbehandling af patienter med aktiv colitis ulcerosa refraktære over for højdosis glukokortikoid

Kjeldsen, J., Wilson, B. V. & Knudsen, T., 2001, In : Ugeskrift for læger. 163, 1, p. 22-25 4 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Circulating microRNAs as biomarkers of adult Crohn's disease

Jensen, M. D., Andersen, R. F., Christensen, H., Nathan, T., Kjeldsen, J. & Madsen, J. S., Sep 2015, In : European journal of gastroenterology & hepatology. 27, 9, p. 1038-1044

Research output: Contribution to journalJournal articleResearchpeer-review

MicroRNAs
Crohn Disease
Down-Regulation
ROC Curve
Area Under Curve

Citrullinated and Matrix Metalloproteinase Degraded Vimentin (VICM) and Matrix Metalloproteinase Degraded Biglycan (BGM) Have High Diagnostic Accuracy to Differentiate Crohn's Disease From Ulcerative Colitis

Mortensen, J. H., Godskesen, L. E., Jensen, M. D., Klinge, L., Kjeldsen, J., Karsdal, M. A., Bay-Jensen, A-C. & Krag, A., Apr 2015, In : Gastroenterology. 148, 4, Supplement 1, p. 430-431 Su1185.

Research output: Contribution to journalJournal articleResearchpeer-review

Collagen Metabolites in the Peripheral and Splanchnic Circulation of Patients with Crohn Disease

Kjeldsen, J., Rasmussen, M., Schaffalitzky de Muckadell, O. B., Kronborg, O. & Junker, P., 2001, In : Scandinavian Journal of Gastroenterology. 36, p. 1193-97

Research output: Contribution to journalJournal articleResearchpeer-review

Concentrations of Adalimumab and Infliximab in Mothers and Newborns, and Effects on Infection

Julsgaard, M., Christensen, L. A., Gibson, P. R., Gearry, R. B., Fallingborg, J., Hvas, C. L., Bibby, B. M., Uldbjerg, N., Connell, W. R., Rosella, O., Grosen, A., Brown, S. J., Kjeldsen, J., Wildt, S., Svenningsen, L., Sparrow, M. P., Walsh, A., Connor, S. J., Radford-Smith, G., Lawrance, I. C. & 3 others, Andrews, J. M., Ellard, K. & Bell, S. J., 8. Apr 2016, In : Gastroenterology. 151, 1, p. 110-119

Research output: Contribution to journalJournal articleResearchpeer-review

Tumor Necrosis Factor-alpha
Mothers
Pharmaceutical Preparations
Confidence Intervals
Umbilical Cord

Costs and Resource Utilization for Diagnosis and Treatment During the Initial Year in a European Inflammatory Bowel Disease Inception Cohort: An ECCO-EpiCom Study

Burisch, J., Vardi, H., Pedersen, N., Brinar, M., Cukovic-Cavka, S., Kaimakliotis, I., Duricova, D., Bortlik, M., Shonová, O., Vind, I., Avnstrøm, S., Thorsgaard, N., Krabbe, S., Andersen, V., Dahlerup, J. F., Kjeldsen, J., Salupere, R., Olsen, J., Nielsen, K. R., Manninen, P. & 31 others, Collin, P., Katsanos, K. H., Tsianos, E. V., Ladefoged, K., Lakatos, L., Bailey, Y., OʼMorain, C., Schwartz, D., Lupinacci, G., De Padova, A., Jonaitis, L., Kupcinskas, L., Turcan, S., Barros, L., Magro, F., Lazar, D., Goldis, A., Nikulina, I., Belousova, E., Fernandez, A., Pineda, J. R., Almer, S., Halfvarson, J., Tsai, H-H., Sebastian, S., Friger, M., Greenberg, D., Lakatos, P. L., Langholz, E., Odes, S. & EpiCom Group, 1. Jan 2015, In : Inflammatory Bowel Diseases. 21, 1, p. 121-131

Research output: Contribution to journalJournal articleResearchpeer-review

Inflammatory Bowel Diseases
Eastern Europe
Ulcerative Colitis
Crohn Disease
Cost-Benefit Analysis

Diagnostic accuracies of MR enterography and CT enterography in symptomatic Crohn's disease

Jensen, M. D., Kjeldsen, J., Rafaelsen, S. R. & Nathan, T., 2011, In : Scandinavian Journal of Gastroenterology. 46, 12, p. 1449-1457 9 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Crohn Disease
Pathologic Constriction
Ileum
Preexisting Condition Coverage
Jejunum

Diagnostic accuracy of capsule endoscopy for small bowel Crohn's disease is superior to that of MR enterography or CT enterography

Jensen, M. D., Nathan, T., Rafaelsen, S. R. & Kjeldsen, J., Feb 2011, In : Clinical Gastroenterology and Hepatology. 9, 2, p. 124-9 6 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Capsule Endoscopy
Crohn Disease
6 Downloads (Pure)

Disease course of inflammatory bowel disease unclassified in a European population-based inception cohort: An Epi-IBD study

Epi-IBD group, Jun 2019, In : Journal of Gastroenterology and Hepatology. 34, 6, p. 996-1003

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Inflammatory Bowel Diseases
Population
Ulcerative Colitis
Crohn Disease
Mesalamine

Effects of topical ropivacaine on eicosanoides and neurotransmitters in the rectum of patients with distal ulcerative colitis

Hillingsøe, J., Kjeldsen, J., Schmidt, P. T., Rasmussen, T. N., Fischer-Hansen, B. & Holst, J. J., 2002, In : Scandinavian Journal of Gastroenterology. 37, p. 325-9

Research output: Contribution to journalJournal articleResearchpeer-review

152 Downloads (Pure)
Open Access
File
Psoriatic Arthritis
Randomized Controlled Trials
Placebos
Safety
Psoriasis