Peter Bytzer

Peter Bytzer

Deputy head of department, Professor, emeritus, Professor Emeritus

Member of:

  • Internal Medicine: Gastroenterology and Hepatology


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  1. 5-Aminosalicylic acid in the treatment of Crohn's disease. A 16-week double-blind, placebo-controlled, multicentre study with Pentasa

    Rasmussen, S. N., Lauritsen, K., Tage-Jensen, U., Nielsen, Ole Haagen, Bytzer, Peter, Jacobsen, O., Ladefoged, K., Vilien, M., Binder, V. & Rask-Madsen, J., 1987, In: Scandinavian Journal of Gastroenterology. 22, 7, p. 877-83 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  2. Published

    A Doppler waveform index to characterize hepatic vein velocity pattern and evaluate hepatic fibrosis

    Pedersen, J. F., Madsen, L. G., Larsen, V. A., Hamberg, O., Horn, T., Federspiel, B., Bytzer, Peter, Pedersen, J. F., Madsen, L. G., Larsen, V. A., Hamberg, O., Horn, T., Federspiel, B. & Bytzer, P., 2008, In: Journal of Clinical Ultrasound. 36, 4, p. 208-11 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. Published

    A population-based survey to assess troublesome symptoms in gastroesophageal reflux disease

    Reimer, C. & Bytzer, Peter, 2009, In: Scandinavian Journal of Gastroenterology. 44, 4, p. 394-400 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    A positive diagnostic strategy is safe and saves endoscopies in patients with irritable bowel syndrome: A five-year follow-up of a randomized controlled trial

    Engsbro, A. L., Begtrup, Luise Mølenberg, Haastrup, P., Storsveen, M. M., Bytzer, Peter, Kjeldsen, J., Schaffalitzky De Muckadell, O. & Jarbøl, D. E., 2021, In: Neurogastroenterology and Motility. 33, 3, e14004.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    An altered composition of the microbiome in microscopic colitis is driven towards the composition in healthy controls by treatment with budesonide

    Rindom Krogsgaard, L., Munck, Lars Kristian, Bytzer, Peter & Wildt, S., Apr 2019, In: Scandinavian Journal of Gastroenterology. 54, 4, p. 446-452 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    Antibiotics: a risk factor for irritable bowel syndrome in a population-based cohort

    Krogsgaard, L. R., Engsbro, A. L. & Bytzer, Peter, 2018, In: Scandinavian Journal of Gastroenterology. 53, 9, p. 1027-1030

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. Published

    Appropriateness of colonoscopy in Europe (EPAGE II). Screening for colorectal cancer

    Arditi, C., Peytremann-Bridevaux, I., Burnand, B., Eckardt, V. F., Bytzer, Peter, Agréus, L., Dubois, R. W., Vader, J., Froehlich, F., Pittet, V., Schusselé Filliettaz, S., Juillerat, P., Gonvers, J. & EPAGE II Study Group, E. I. S. G., 2009, In: Endoscopy. 41, 3, p. 200-8 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    Burden of upper gastrointestinal symptoms in patients receiving low-dose acetylsalicylic acid for cardiovascular risk management: a prospective observational study

    Bytzer, Peter, Pratt, S., Elkin, E., Næsdal, J. & Sörstadius, E., Feb 2013, In: American Journal of Cardiovascular Drugs. 13, 1, p. 27-35 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  9. Published

    Characteristics of acute pain attacks in patients with irritable bowel syndrome meeting Rome III criteria

    Hellström, P. M., Saito, Y. A., Bytzer, Peter, Tack, J., Mueller-Lissner, S. & Chang, L., 1 Jul 2011, In: American Journal of Gastroenterology. 106, 7, p. 1299-1307 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. Published

    Characteristics of the bacterial microbiome in association with common intestinal parasites in irritable bowel syndrome

    Krogsgaard, L. R., Andersen, L. O. B., Johannesen, T. B., Engsbro, A. L., Stensvold, C. R., Nielsen, H. V. & Bytzer, Peter, 2018, In: Clinical and Translational Gastroenterology. 9, 11 p., 161.

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. Published

    Clinical trial design in adult reflux disease: a methodological workshop

    Dent, J., Kahrilas, P. J., Vakil, N., Zanten, S. V. V., Bytzer, Peter, Delaney, B., Haruma, K., Hatlebakk, J., McColl, E., Moayyedi, P., Stanghellini, V., Tack, J. & Vaezi, M., 2008, In: Alimentary Pharmacology and Therapeutics. 28, 1, p. 107-126 19 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  12. Published

    Compliance with Guidelines on Thromboprophylaxis for Acutely Admitted Medical Patients

    Freund, N., Sabroe, J. E., Bytzer, Peter & Madsen, S. M., 2018, In: Advances in Therapy. 35, 11, p. 1873-1883 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Published

    Danish national guideline: Diagnosis and treatment of Irritable Bowel Syndrome

    Krarup, A. L., Engsbro, A. L. Ø., Fassov, J., Fynne, L., Christensen, A. B. & Bytzer, Peter, 2017, In: Danish Medical Journal. 64, 6, C5382.

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. Published

    Deprescribing proton pump inhibitors: why, when and how

    Bytzer, Peter, 2018, In: Medical Journal of Australia. 209, 10, p. 436-438

    Research output: Contribution to journal › Editorial › Research › peer-review

  15. Published

    Der er utilstrækkelig evidens for effekten af low-FODMAP-diæt ved colon irritabile

    Krogsgaard, L. R., Lyngesen, M. & Bytzer, Peter, 27 Apr 2015, In: Ugeskrift for Laeger. 177, p. 1503-7 5 p., V12140741 .

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    Dyspepsi. Udredning og behandling af voksne med symptomer fra øvre mave-tarm-kanal

    Bytzer, Peter, Zwisler, J. E., Kjeldsen, H. C., Hansen, J. M. & Jarbøl, D., 2009, Klinisk vejledning for almen praksis. Dansk Selskab for Almen Medicin, p. 1-46 46 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  17. Published

    Editorial: refractory GERD-good drug, wrong patients? Authors' reply

    Coyle, C. & Bytzer, Peter, 2017, In: Alimentary Pharmacology and Therapeutics. 46, 2, p. 204-205

    Research output: Contribution to journal › Editorial › Research

  18. Published

    Editorial: anti-secretory therapy prior to anti-reflux surgery. Does dose matter? Authors' reply

    Lødrup, A., Pottegård, A., Hallas, J. & Bytzer, Peter, Sep 2015, In: Alimentary Pharmacology and Therapeutics. 42, 5, p. 627-627 1 p.

    Research output: Contribution to journal › Editorial › Research › peer-review

  19. Published

    Effects of probiotic fermented milk on symptoms and intestinal flora in patients with irritable bowel syndrome: A randomized, placebo-controlled trial

    Søndergaard, B., Olsson, J., Ohlson, K., Svensson, U., Bytzer, Peter & Ekesbo, R., 1 Jun 2011, In: Scandinavian Journal of Gastroenterology. 46, 6, p. 663-672 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  20. Published

    Empirical Second-Line Therapy in 5000 Patients of the European Registry on Helicobacter pylori Management (Hp-EuReg)

    Nyssen, O. P., Vaira, D., Pérez Aísa, Á., Rodrigo, L., Castro-Fernandez, M., Jonaitis, L., Tepes, B., Vologzhanina, L., Caldas, M., Lanas, A., Lucendo, A. J., Bujanda, L., Ortuño, J., Barrio, J., Huguet, J. M., Voynovan, I., Lasala, J. P., Sarsenbaeva, A. S., Fernandez-Salazar, L., Molina-Infante, J. & 31 others, Jurecic, N. B., Areia, M., Gasbarrini, A., Kupčinskas, J., Bordin, D., Marcos-Pinto, R., Lerang, F., Leja, M., Buzas, G. M., Niv, Y., Rokkas, T., Phull, P., Smith, S., Shvets, O., Venerito, M., Milivojevic, V., Simsek, I., Lamy, V., Bytzer, Peter, Boyanova, L., Kunovský, L., Beglinger, C., Doulberis, M., Marlicz, W., Goldis, A., Tonkić, A., Capelle, L., Puig, I., Megraud, F., Morain, C. O. & European Registry on Helicobacter pylori Management Hp-EuReg Investigators, E. R. O. H. P. M. H. I., 2022, In: Clinical Gastroenterology and Hepatology. 20, 10, p. 2243-2257 15 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. Published

    Endoskopi af patienter i antitrombotisk og antikoagulerende behandling

    Kjeldsen, J., Pless, T., Meisner, S. & Bytzer, Peter, 2009, In: Ugeskrift for læger. 171, 17, p. 1384-6 2 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  22. Published

    Establishing a donor stool bank for faecal microbiota transplantation: methods and feasibility

    Rode, A. A., Bytzer, Peter, Pedersen, Ole Birger Vesterager & Engberg, J., 2019, In: European Journal of Clinical Microbiology and Infectious Diseases. 38, p. 1837-1847 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  23. Published

    European Registry on Helicobacter pylori management (Hp-EuReg): Patterns and trends in first-line empirical eradication prescription and outcomes of 5 years and 21 533 patients

    Nyssen, O. P., Bordin, D., Tepes, B., Pérez-Aisa, Á., Vaira, D., Caldas, M., Bujanda, L., Castro-Fernandez, M., Lerang, F., Leja, M., Rodrigo, L., Rokkas, T., Kupcinskas, L., Pérez-Lasala, J., Jonaitis, L., Shvets, O., Gasbarrini, A., Simsek, H., Axon, A. T. R., Buzás, G. & 27 others, Machado, J. C., Niv, Y., Boyanova, L., Goldis, A., Lamy, V., Tonkic, A., Przytulski, K., Beglinger, C., Venerito, M., Bytzer, Peter, Capelle, L., Milosavljević, T., Milivojevic, V., Veijola, L., Molina-Infante, J., Vologzhanina, L., Fadeenko, G., Ariño, I., Fiorini, G., Garre, A., Garrido, J., F Pérez, C., Puig, I., Heluwaert, F., Megraud, F., O'Morain, C. & Gisbert, J. P., 2021, In: Gut. 70, 1, p. 40-54 15 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    Expansion and persistence of antibiotic-specific resistance genes following antibiotic treatment

    Kang, K., Imamovic, L., Misiakou, M. A., Bornakke Sørensen, M., Heshiki, Y., Ni, Y., Zheng, T., Li, J., Ellabaan, M. M. H., Colomer-Lluch, M., Rode, A. A., Bytzer, Peter, Panagiotou, G. & Sommer, M. O. A., 2021, In: Gut Microbes. 13, 1, p. 1-19 19 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. Published

    Funktionel dyspepsi

    Bytzer, Peter, Nielsen, O. H., Kjeldsen, H. C., Petersen, H. & Johannessen, T., 2009, Lægehåndbogen - et opslagsværk til både sundhedsfaglige og borgere. Lægeforeningens Forlag

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

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