Jens Kjeldsen

Physician, Ph.D.

  • Campusvej 55

    5230 Odense M

    Denmark

20002020
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Research Output 2000 2020

High sensitivity of quick view capsule endoscopy for detection of small bowel Crohn's disease

Halling, M. L., Nathan, T., Kjeldsen, J. & Jensen, M. D., May 2014, In : Journal of Gastroenterology and Hepatology. 29, 5, p. 992-996

Research output: Contribution to journalJournal articleResearchpeer-review

Capsule Endoscopy
Crohn Disease
Ileum
Reading
146 Downloads (Pure)

Home parenteral nutrition increases fat free mass in patients with incurable gastrointestinal cancer. Results of a randomized controlled trial

Obling, S. R., Wilson, B. V., Pfeiffer, P. & Kjeldsen, J., Feb 2019, In : Clinical Nutrition. 38, 1, p. 182-190

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Gastrointestinal Neoplasms
Randomized Controlled Trials
Fats
Quality of Life
Dietetics
20 Downloads (Pure)

Home parenteral support in patients with incurable cancer. Patient characteristics of importance for catheter related complications and overall survival

Obling, S. R., Wilson, B. V. & Kjeldsen, J., 1. Dec 2018, In : Clinical Nutrition ESPEN. 28, p. 88-95

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Catheters
Neoplasms
Gastrointestinal Neoplasms
Regression Analysis
Intestinal Neoplasms

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

Ileoscopy reduces the need for small bowel imaging in suspected Crohn's disease

Jensen, M. D., Nathan, T., Rafaelsen, S. R. & Kjeldsen, J., 2012, In : Danish Medical Journal. 59, 9, p. A4491

Research output: Contribution to journalJournal articleResearchpeer-review

Capsule Endoscopy
Crohn Disease
Guidelines
135 Downloads (Pure)

Impact of red and processed meat and fibre intake on treatment outcomes among patients with chronic inflammatory diseases: protocol for a prospective cohort study of prognostic factors and personalised medicine

Christensen, R., Heitmann, B. L., Andersen, K. W., Nielsen, O. H., Sørensen, S. B., Jawhara, M., Bygum, A., Hvid, L., Grauslund, J., Wied, J., Glerup, H., Fredberg, U., Villadsen, J. A., Kjær, S. G., Fallingborg, J., Moghadd, S. A. G. R., Knudsen, T., Brodersen, J., Frøjk, J., Dahlerup, J. F. & 21 others, Bojesen, A. B., Sorensen, G. L., Thiel, S., Færgeman, N. J., Brandslund, I., Bennike, T. B., Stensballe, A., Schmidt, E. B., Franke, A., Ellinghaus, D., Rosenstiel, P., Raes, J., Boye, M., Werner, L., Nielsen, C. L., Munk, H. L., Nexøe, A. B., Ellingsen, T., Holmskov, U., Kjeldsen, J. & Andersen, V., Feb 2018, In : B M J Open. 8, 2, 17 p., e018166.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Precision Medicine
Cohort Studies
Prospective Studies
Tumor Necrosis Factor-alpha
Hidradenitis Suppurativa

Implications of Infliximab Treatment Failure and Influence of Personalized Treatment on Patient-reported Health-related Quality of Life and Productivity Outcomes in Crohn's Disease

Steenholdt, C., Brynskov, J., Thomsen, O. Ø., Munck, L. K., Christensen, L. A., Pedersen, G., Kjeldsen, J. & Ainsworth, M. A., Nov 2015, In : Journal of Crohn's and Colitis. 9, 11, p. 1032-1042

Research output: Contribution to journalJournal articleResearchpeer-review

Treatment Failure
Crohn Disease
Quality of Life
Efficiency
Inflammatory Bowel Diseases

Incidental findings at MRI-enterography in patients with suspected or known Crohn's disease

Jensen, M. D., Nathan, T., Kjeldsen, J. & Rafaelsen, S. R., 7. Jan 2010, In : World Journal of Gastroenterology. 16, 1, p. 76-82 6 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Crohn Disease
Inflammatory Bowel Diseases
Small Intestine
Referral and Consultation

Incidental findings at MRI og the small intestine in patients with suspected and known Crohn's disease

Dam Jensen, M., Rafaelsen, S. R., Kjeldsen, J. & Nathan, T., 2009.

Research output: Contribution to conference without publisher/journalPosterResearch

Incomplete remission with short-term prednisolone treatment in collagenous colitis: A randomized study

Munck, L. K., Kjeldsen, J., Philipsen, E. & Fischer Hansen, B., 2003, In : Scandinavian Journal of Gastroenterology. 38(6), p. 606-10

Research output: Contribution to journalJournal articleResearch

Increased expression of T-cell KV1.3 and KCa3.1 channels in the inflamed intestinal wall from patients with active ulcerative colitis

Hansen, L. K., Larsen, D., Sadda, V., Nielsen, G., Klinge, L., Schaffalitzky de Muckadell, O. B., Knudsen, T., Kjeldsen, J. & Köhler, R., 22. Oct 2011. 1 p.

Research output: Contribution to conference without publisher/journalPosterResearch

Ulcerative Colitis
Colitis
Mucous Membrane
Intestinal Mucosa
Cell Movement

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

Ulcerative Colitis
Inflammatory Bowel Diseases
Crohn Disease
Psoriatic Arthritis
Psoriasis

Individualised therapy is more cost-effective than dose intensification in patients with Crohn's disease who lose response to anti-TNF treatment: a randomised, controlled trial

Steenholdt, C., Brynskov, J., Thomsen, O. Ø., 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., 2014, In : Gut. 63, 6, p. 919-927

Research output: Contribution to journalJournal articleResearchpeer-review

Crohn Disease
Randomized Controlled Trials
Single-Blind Method
Health Care Sector
Multicenter Studies

Individualized Therapy Is a Long-Term Cost-Effective Method Compared to Dose Intensification in Crohn’s Disease Patients Failing Infliximab

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., 2015, In : Digestive Diseases and Sciences. 60, 9, p. 2762-2770

Research output: Contribution to journalJournal articleResearchpeer-review

Crohn Disease
Treatment Failure
Registries
Clinical Trials

Initial Disease Course and Treatment in an Inflammatory Bowel Disease Inception Cohort in Europe: The ECCO-EpiCom Cohort

Burisch, J. M., Pedersen, E. N. G., Cukovic-Cavka, S., Turk, N., Kaimakliotis, I., Duricova, D., Shonová, O., Vind, I., Avnstrøm, S., Thorsgaard, N., Krabbe, S., Andersen, V., Dahlerup Jens, F., Kjeldsen, J., Salupere, R., Olsen, J., Nielsen, K. R., Manninen, P., Collin, P., Katsanos, K. H. & 29 others, Tsianos, E. V., Ladefoged, K. D., Lakatos, L., Bailey, Y., O'Morain, C., Schwartz, D., Odes, S., Martinato, M., Lombardini, S., Jonaitis, L., Kupcinskas, L., Turcan, S., Barros, L., Magro, F., Lazar, D., Goldis, A., Nikulina, I., Belousova, E., Fernandez, A., Hernandez, V., Almer, S., Zhulina, Y., Halfvarson, J., Tsai, H-H., Sebastian, S., Lakatos, P. L., Langholz, E., Munkholm, P. & EpiCom Group, 1. Jan 2014, In : Inflammatory Bowel Diseases. 20, 1, p. 36-46

Research output: Contribution to journalJournal articleResearchpeer-review

Inflammatory Bowel Diseases
Population

Inter-abserver Agreement for Detection of Small Bowel Crohn's Disease with Capsule Endoscopy.

Dam Jensen, M., Nathan, T. & Kjeldsen, J., 1. May 2010.

Research output: Contribution to conference without publisher/journalPosterResearch

Inter-observer agreement for detection of small bowel Crohn's disease with capsule endoscopy

Jensen, M. D., Nathan, T. & Kjeldsen, J., 2010, In : Scandinavian Journal of Gastroenterology. 45, 7-8, p. 878-84 7 p.

Research output: Contribution to journalJournal articleResearchpeer-review

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

In vivo and In situ Measurement and Modeling of Intra-Body Effective Complex Permittivity

S. Nadimi, E., Blanes-Vidal, V., Harslund, J. L. F., Ramezani, M. H., Kjeldsen, J., Johansen, P. M., Thiel, D. & Tarokh, V., 2015, In : Healthcare Technology Letters. 2, 6, p. 135-140

Research output: Contribution to journalJournal articleResearchpeer-review

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

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

Kronisk inflammatoriske tarmlidelser

Kjeldsen, J. & Lauritsen, K., 2002, In : Maanedsskrift for Praktisk Laegegerning. årgang 80, p. 1043-1057

Research output: Contribution to journalJournal articleResearch

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

183 Downloads (Pure)
Open Access
File
Irritable Bowel Syndrome
Probiotics
Primary Health Care
Placebos
Quality of Life

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.

Research output: Contribution to conference without publisher/journalPosterResearch

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

Månedens billede: Burried Bumper Syndrom

Dall, M. & Kjeldsen, J., 2006, In : Ugeskrift for læger. 168, p. 1662

Research output: Contribution to journalLetterResearch

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

Medicinsk Kompendium: Indexredaktør

Kjeldsen, J., 2015

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

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

Natural disease course of Crohn's disease during the first 5 years after diagnosis in a European population-based inception cohort: an Epi-IBD study

Burisch, J., Kiudelis, G., Kupcinskas, L., Kievit, H. A. L., Andersen, K. W., Andersen, V., Salupere, R., Pedersen, N., Kjeldsen, J., D'Incà, R., Valpiani, D., Schwartz, D., Odes, S., Olsen, J., Nielsen, K. R., Vegh, Z., Lakatos, P. L., Toca, A., Turcan, S., Katsanos, K. H. & 27 others, Christodoulou, D. K., Fumery, M., Gower-Rousseau, C., Zammit, S. C., Ellul, P., Eriksson, C., Halfvarson, J., Magro, F. J., Duricova, D., Bortlik, M., Fernandez, A., Hernández, V., Myers, S., Sebastian, S., Oksanen, P., Collin, P., Goldis, A., Misra, R., Arebi, N., Kaimakliotis, I. P., Nikuina, I., Belousova, E., Brinar, M., Cukovic-Cavka, S., Langholz, E., Munkholm, P. & Epi-IBD group, 1. Mar 2019, In : Gut. 68, 3, p. 423-433

Research output: Contribution to journalJournal articleResearchpeer-review

Crohn Disease
Population
Immunologic Factors
Eastern Europe
Mesalamine
31 Downloads (Pure)

Natural Disease Course of Ulcerative Colitis During the First Five Years of Follow-up in a European Population-based Inception Cohort-An Epi-IBD Study

Epi-IBD group, 1. Feb 2019, In : Journal of Crohn's and Colitis. 13, 2, p. 198–208

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Ulcerative Colitis
Population
Immunologic Factors
Colitis
Cohort Studies

Nye behandlinger af kronisk inflammatorisk tarmsygdom: anti TNF-antistoffer og probiotika

Kjeldsen, J., Brynskov, J. & Madsen, J. R., 2001, In : Ugeskrift for læger. 163, p. 1707

Research output: Contribution to journalJournal articleResearch

Occurrence of anaemia in the first year of inflammatory bowel disease in a European population-based inception cohort: An ECCO-EpiCom study

Burisch, J., Vegh, Z., Katsanos, K. H., Christodoulou, D. K., Lazar, D., Goldis, A., O'Morain, C., Fernandez, A., Pereira, S., Myers, S., Sebastian, S., Pedersen, N., Olsen, J., Nielsen, K. R., Schwartz, D., Odes, S., Almer, S., Halfvarson, J., Turk, N., Cukovic-Cavka, S. & 31 others, Nikulina, I., Belousova, E., Duricova, D., Bortlik, M., Shonová, O., Salupere, R., Barros, L., Magro, F., Jonaitis, L., Kupcinskas, L., Turcan, S., Kaimakliotis, I., Ladefoged, K., Kudsk, K., Andersen, V., Vind, I., Thorsgaard, N., Oksanen, P., Collin, P., Dal Piaz, G., Santini, A., Niewiadomski, O., Bell, S., Moum, B., Arebi, N., Kjeldsen, J., Carlsen, K., Langholz, E., Lakatos, P. L., Gerdes, L. U. & EpiCom Group, 2017, In : Journal of Crohn's and Colitis. 11, 10, p. 1213–1222

Research output: Contribution to journalJournal articleResearchpeer-review

Inflammatory Bowel Diseases
Population
Colonic Diseases

Patients Suspected of Irritable Bowel Syndrome-Cross-Sectional Study Exploring the Sensitivity of Rome III Criteria in Primary Care

Engsbro, A. L., Begtrup, L. M., Kjeldsen, J., Larsen, P. V., de Muckadell, O. S., Jarbøl, D. E. & Bytzer, P., Jun 2013, In : American Journal of Gastroenterology. 108, 6, p. 972-80

Research output: Contribution to journalJournal articleResearchpeer-review

Irritable Bowel Syndrome
Primary Health Care
Cross-Sectional Studies
General Practitioners
Guidelines
157 Downloads (Pure)

Patients with inflammatory bowel disease have increased risk of autoimmune and inflammatory diseases

Halling, M. L., Kjeldsen, J., Knudsen, T., Nielsen, J. & Hansen, L. K., 7. Sep 2017, In : World Journal of Gastroenterology. 23, 33, p. 6137-6146

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Inflammatory Bowel Diseases
Ulcerative Colitis
Crohn Disease
Scleritis
Polymyalgia Rheumatica

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

Pharmacological monitoring of azathioprine therapy

Reuther, L. O., Sonne, J., Larsen, N. E., Larsen, B., Christensen, S., Rasmussen, S. N., Tofteng, F., Haaber, A., Johansen, N., Kjeldsen, J. & Schmiegelow, K., 2003, In : Scandinavian Journal of Gastroenterology. 38(9), p. 972-7

Research output: Contribution to journalJournal articleResearch

109 Downloads (Pure)

Poor Outcomes of Complicated Pouch-Related Fistulas after Ileal Pouch-Anal Anastomosis Surgery

Kjaer, M. D., Kjeldsen, J. & Qvist, N., 2016, In : Scandinavian Journal of Surgery. 105, 3, p. 163–167

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
Colonic Pouches
Crohn Disease
Restorative Proctocolectomy
Ileostomy
Retrospective Studies

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

Postoperative Use of Anti-TNF-α Agents in Patients with Crohn's Disease and Risk of Reoperation-A Nationwide Cohort Study

Kjeldsen, J., Nielsen, J., Larsen, M. D., Qvist, N. & Nørgård, B. M., 8. Dec 2015, In : Inflammatory Bowel Diseases. 22, 3, p. 599–606

Research output: Contribution to journalJournal articleResearchpeer-review

Proxy
Reoperation
Crohn Disease
Cohort Studies
Confidence Intervals

Prediction of therapy in primary endoscopic retrograde cholangiopancreatography.

Nathan, T., Kjeldsen, J. & Muckadell, O. B. S. D., 2004, In : Endoskopie. 36(6), p. 527-534

Research output: Contribution to journalJournal articleResearch

Crohn Disease
Cohort Studies
Reoperation
Registries
Odds Ratio
Ulcerative Colitis
Cohort Studies
Tumor Necrosis Factor-alpha

Prevalence of chronic rhinosinusitis in a population of patients with gastroesophageal reflux disease

Bohnhorst, I., Jawad, S., Lange, B., Kjeldsen, J., Hansen, J. M. & Kjeldsen, A. D., 2015, In : American Journal of Rhinology & Allergy. 29, 3, p. 70-4 5 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Gastroesophageal Reflux
Population
Nose
Confidence Intervals
Quality of Life

Probiotika: skal vi ændre behandlingsstrategi for pouchitis?

Klinge, L. & Kjeldsen, J., 2006, In : Ugeskrift for læger. 168, p. 3516-3518

Research output: Contribution to journalReviewResearch

Scintigrapfic evaluation of pouch function in patients with ulcerative colitis

Kjær, M. D., Hvidsten, S., Simonsen, J. A., Kjeldsen, J. & Qvist, N., 14. Nov 2013. 1 p.

Research output: Contribution to conference without publisher/journalPosterResearch

Scintigraphic evaluation of pouch function in patients with ulcerative colitis

Kjær, M. D., Simonsen, J. A., Hvidsten, S., Kjeldsen, J. & Qvist, N., 4. Dec 2013.

Research output: Contribution to conference without publisher/journalPosterResearch