Mikkel Andreassen

Mikkel Andreassen

Clinical Associate Professor

Member of:

  • Internal Medicine: Endocrinology


Publication year:
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1 - 46 out of 46Page size: 100
  1. 2024
  2. Published

    Appendiceal Neuroendocrine Neoplasms: an Update for 2023

    Holmager, P., Langer, Seppo W., Kjær, Andreas, Ringholm, Lene, Garbyal, Rajendra Singh, Hansen, C. P., Andreassen, Mikkel & Knigge, Ulrich, 2024, In: Current Oncology Reports. 26, 2, p. 114-120 7 p.

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

  3. Published

    Outlook for 615 Small Intestinal Neuroendocrine Tumor Patients: Recurrence Risk after Surgery and Disease-Specific Survival in Advanced Disease

    Slott, C., Langer, Seppo W., Møller, S., Krogh, Jesper, Klose, M., Hansen, C. P., Kjær, Andreas, Holmager, P., Garbyal, Rajendra Singh, Knigge, Ulrich & Andreassen, Mikkel, 2024, In: Cancers. 16, 1, 16 p., 204.

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

  4. Published

    Responses to Medical Treatment in 192 Patients with Pancreatic Neuroendocrine Neoplasms Referred to the Copenhagen Neuroendocrine Tumour Centre in 2000–2020

    Petersen, S. S., Møller, S., Slott, C., Krogh, Jesper, Hansen, C. P., Kjær, Andreas, Holmager, P., Oturai, P., Garbyal, Rajendra Singh, Langer, Seppo W., Knigge, Ulrich & Andreassen, Mikkel, 2024, In: Cancers. 16, 6, 16 p., 1190.

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

  5. 2023
  6. Published

    Imaging surveillance in multiple endocrine neoplasia type 1: Ten years of experience with somatostatin receptor positron emission tomography

    Said, M., Krogh, Jesper, Feldt-Rasmussen, Ulla, Rasmussen, Å. K., zwp671, zwp671, Rossing, Caroline Maria, Johannesen, Helle Hjorth, Oturai, P., Holmager, P., Kjær, Andreas, Klose, M., Langer, Seppo W., Knigge, Ulrich & Andreassen, Mikkel, 2023, In: Journal of Neuroendocrinology. 35, 8, e13322.

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

  7. Published

    Natural History of Non-Functioning Pituitary Adenomas: A Systematic Review and Meta-Analysis

    Rikvold, S. D., Pedersen, M. B., Andreassen, Mikkel & Krogh, Jesper, 2023, In: Hormone and Metabolic Research. 55, 7, p. 443-451 9 p.

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

  8. Published

    Prognostic value of contralateral suppression on kidney function after surgery in patients with primary aldosteronism

    Voss, N., Mørup, S., Clausen, C., Feltoft, C. L., Jepsen, Jan Viberg, Hornum, Mads, Andreassen, Mikkel & Krogh, Jesper, 2023, In: Clinical Endocrinology. 98, 3, p. 306-314

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

  9. Published

    Prospective Phase II Trial of [68Ga]Ga-NODAGA-E[c(RGDyK)]2 PET/CT Imaging of Integrin αvβ3 for Prognostication in Patients with Neuroendocrine Neoplasms

    Carlsen, E. A., Loft, M., Loft, A., Czyzewska, D., Andreassen, Mikkel, Langer, Seppo W., Knigge, Ulrich & Kjær, Andreas, 2023, In: The Journal of Nuclear Medicine. 64, 2, p. 252-259

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

  10. Published

    Recurrence-Free Survival and Disease-Specific Survival in Patients with Pancreatic Neuroendocrine Neoplasms: A Single-Center Retrospective Study of 413 Patients

    Møller, S., Langer, Seppo W., Slott, C., Krogh, Jesper, Hansen, C. P., Kjær, Andreas, Holmager, P., Klose, M., Garbyal, Rajendra Singh, Knigge, Ulrich & Andreassen, Mikkel, 2023, In: Cancers. 16, 1, 14 p., 100.

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

  11. Published

    Treatment of inoperable large cell neuroendocrine lung cancer with single agent temozolomide

    Ørting, A. M., Clausen, M. M., Soldath, Patrick, Petersen, René Horsleben, Knigge, Ulrich, Andreassen, Mikkel, Kjær, Andreas & Langer, Seppo W., 2023, In: Acta Oncologica. 62, 12, p. 1952-1955 4 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  12. 2022
  13. Published

    DLL3 expression and clinico-pathological data in 247 patients with NEN

    Clausen, Malene Martini, Federspiel, B., Carstensen, F., Suppli, M. H., Kjær, Andreas, Andreassen, Mikkel, Garbyal, Rajendra Singh, Knigge, Ulrich & Langer, Seppo W., 2022, In: Journal of Neuroendocrinology. 34, S1, p. 104 1 p.

    Research output: Contribution to journal › Conference abstract in journal › Research

  14. Published

    Endocrine Function after Transsphenoidal Surgery in Patients with Non-Functioning Pituitary Adenomas: A Systematic Review and Meta-Analysis

    Pedersen, M. B., Dukanovic, S., Springborg, Jacob Bertram, Andreassen, Mikkel & Krogh, Jesper, 2022, In: Neuroendocrinology. 112, 9, p. 823-834

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

  15. Published

    Prognostic value of contralateral suppression for remission after surgery in patients with primary aldosteronism

    Mørup, S., Voss, N., Feltoft, C. L., Andreassen, Mikkel & Krogh, Jesper, 2022, In: Clinical Endocrinology. 96, 6, p. 793-802 10 p.

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

  16. Published

    Radiofrekvensablation af insulinomer i pancreas

    Jansen, C., Vilmann, Peter, Brink, L., Andreassen, Mikkel, Knigge, Ulrich, Hansen, C. P. & Kovacevic, B., 2022, In: Ugeskrift for Laeger. 184, 46, 7 p., V06220416.

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

  17. Published

    Surgery in Patients with Gastro-Entero-Pancreatic Neuroendocrine Carcinomas, Neuroendocrine Tumors G3 and High Grade Mixed Neuroendocrine-Non-Neuroendocrine Neoplasms

    Holmager, P., Langer, Seppo W., Kjær, Andreas, Ringholm, L., Garbyal, Rajendra Singh, Pommergaard, Hans-Christian L, Hansen, C. P., Federspiel, B., Andreassen, Mikkel & Knigge, Ulrich, 2022, In: Current Treatment Options in Oncology. 23, 6, p. 806-817 12 p.

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

  18. Published

    Variation in serum adrenal hormones in female 21-hydroxylase deficient patients

    Sørensen, D. S. D., Krogh, Jesper, Rasmussen, Å. K. & Andreassen, Mikkel, 2022, In: Endocrine Connections. 11, 7, e220143.

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

  19. 2021
  20. Published

    A short report of 50 patients with gastroenteropancreatic mixed neuroendocrine–non-neuroendocrine neoplasms (MiNEN)

    Laenkholm, I. T., Langer, Seppo W., Andreassen, Mikkel, Holmager, P., Kjær, Andreas, Klose, M., Federspiel, B. H., Hansen, C. P. & Knigge, Ulrich, 2021, In: Acta Oncologica. 60, 6, p. 808-812

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

  21. Published

    Incidence, clinical presentation and trends in indication for diagnostic work-up of small intestinal and pancreatic neuroendocrine tumors

    Stensbøl, A. B., Krogh, Jesper, Holmager, P., Klose, M., Oturai, P., Kjær, Andreas, Hansen, C. P., Federspiel, B., Langer, Seppo W., Knigge, Ulrich & Andreassen, Mikkel, 2021, In: Diagnostics. 11, 11, 2030.

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

  22. Published

    Increase of Ki-67 index and influence on mortality in patients with neuroendocrine neoplasms

    Holmager, P., Langer, Seppo W., Federspiel, B., Willemoe, G. L., Garbyal, Rajendra Singh, Melchior, L., Klose, M., Kjær, Andreas, Hansen, C. P., Andreassen, Mikkel & Knigge, Ulrich, 2021, In: Journal of Neuroendocrinology. 33, 9, 8 p., e13018.

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

  23. Published

    Metabolic and hormonal side effects of mitotane treatment for adrenocortical carcinoma: A retrospective study in 50 Danish patients

    Vikner, M. E., Krogh, Jesper, Daugaard, G. & Andreassen, Mikkel, 2021, In: Clinical Endocrinology. 94, 2, p. 141-149

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

  24. Published

    Neuroendocrine neoplasms of the appendix: Characterization of 335 patients referred to the Copenhagen NET Center of Excellence

    Holmager, P., Willemoe, G. L., Nielsen, K., Grøndahl, V., Klose, M., Andreassen, Mikkel, Langer, Seppo W., Hansen, C. P., Kjær, Andreas, Federspiel, B. H. & Knigge, Ulrich, 2021, In: European Journal of Surgical Oncology. 47, 6, p. 1357-1363 7 p.

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

  25. Published

    Pituitary function after transsphenoidal surgery including measurement of basal morning cortisol as predictor of adrenal insufficiency

    Staby, I., Krogh, Jesper, Klose, M., Baekdal, J., Feldt-Rasmussen, Ulla, Poulsgaard, L., Springborg, Jacob Bertram & Andreassen, Mikkel, 2021, In: Endocrine Connections. 10, 7, p. 750-757 8 p.

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

  26. Published

    The effect of dopamine agonists on metabolic variables in adults with type 2 diabetes: A systematic review with meta analysis and trial sequential analysis of randomized clinical trials

    Andersen, I. B., Andreassen, Mikkel & Krogh, Jesper, 2021, In: Diabetes, Obesity and Metabolism. 23, 1, p. 58-67

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

  27. 2020
  28. Published

    Limited Diagnostic Utility of Chromogranin A Measurements in Workup of Neuroendocrine Tumors

    Baekdal, J., Krogh, J., Klose, M., Holmager, P., Langer, Seppo W., Oturai, P., Kjær, Andreas, Federspiel, B., Hilsted, L., Rehfeld, Jens Frederik, Knigge, U. & Andreassen, Mikkel, 2020, In: Diagnostics. 10, 11, 13 p., 881.

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

  29. Published

    Semen quality in hypogonadal acromegalic patients

    Andreassen, Mikkel, Juul, Anders, Feldt-Rasmussen, Ulla & Jørgensen, N., 2020, In: Pituitary. 23, p. 160-166

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

  30. 2019
  31. Published

    Surgical Management, Preoperative Tumor Localization, and Histopathology of 80 Patients Operated on for Insulinoma

    Andreassen, Mikkel, Ilett, E., Wiese, D., Slater, E. P., Klose, M., Hansen, C. P., Gercke, N., Langer, Seppo W., Kjaer, A., Maurer, E., Federspiel, B., Kann, P. H., Bartsch, D. K. & Knigge, Ulrich, Dec 2019, In: Journal of Clinical Endocrinology and Metabolism. 104, 12, p. 6129-6138

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

  32. Published

    Metabolic effects of dopamine agonists in patients with prolactinomas: a systematic review and meta-analysis

    Byberg, S., Futtrup, J., Andreassen, Mikkel & Krogh, J., Oct 2019, In: Endocrine Connections. 8, 10, p. 1395-1404

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

  33. Published

    Gastroenteropancreatic (GEP) Mixed Neuroendocrine-Non-Endocrine Neoplasms (MiNEN)

    Laenkholm, I. T., Langer, Seppo W., Andreassen, Mikkel, Holmager, P., Hansen, C. P., Kjær, Andreas, Federspiel, B. & Knigge, Ulrich, 2019, p. 244-244. 1 p.

    Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

  34. Published

    Surgical management, pre-operative tumor localization and histopathology of 80 patients operated for insulinoma.

    Andreassen, Mikkel, Ilett, E., Wiese, D., Slater, E., Klose, M., Hansen, C., Gercke, N., Langer, Seppo W., Kjær, Andreas, Maurer, E., Federspiel, B., Kann, P., Bartsch, D. & Knigge, Ulrich, 2019, In: Journal of Clinical Endocrinology and Metabolism. p. 6129–6138

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

  35. 2018
  36. Published

    Immunohistochemical Profiles in 81 Patients with Resected Insulinomas

    Andreassen, Mikkel, Ilett, E., Slater, E. P., Wiese, D., Hansen, C. P., Gehrke, N., Langer, Seppo W., Kjær, Andreas, Maurer, E., Federspiel, B., Bartsch, D. K. & Knigge, Ulrich, 2018, p. 136-136. 1 p.

    Research output: Contribution to conference › Conference abstract for conference › Research

  37. Published

    Pancreatic Islet Cell Tumors

    Knigge, Ulrich, Andreassen, Mikkel, Federspiel, B., Hansen, C. P., Kjær, Andreas & Langer, S. W., 2018, Encyclopedia of Endocrine Diseases. Huhtaniemi, I. & Martini, L. (eds.). 2. ed. Elsevier, p. 626-634

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

  38. Published

    Semen quality in patients with pituitary disease and adult-onset hypogonadotropic hypogonadism

    Andreassen, Mikkel, Juul, Anders, Feldt-Rasmussen, Ulla & Jørgensen, N., 2018, In: Endocrine Connections. 7, 4, p. 523-533 11 p.

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

  39. 2017
  40. Published

    Feasibility and Implication of Routine NGS Analysis in Neuroendocrine Carcinomas

    Knigge, Ulrich, Federspiel, B., Andreassen, Mikkel, Kjær, Andreas & Langer, Seppo W., 2017, In: Neuroendocrinology. 105, S1, p. 26-26 1 p.

    Research output: Contribution to journal › Conference abstract in journal › Research › peer-review

  41. 2015
  42. Published

    Treatment of subclinical hyperthyroidism: effect on left ventricular mass and function of the heart using magnetic resonance imaging technique

    Mark, P. D., Andreassen, Mikkel, Petersen, C. L., Kjær, Andreas & Faber, Jens, 2015, In: Endocrine Connections. 4, 1, p. 37-42 6 p.

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

  43. 2014
  44. Published

    Association between GH receptor polymorphism (exon 3 deletion), serum IGF1, semen quality, and reproductive hormone levels in 838 healthy young men

    Andreassen, Mikkel, Jensen, R. B., Jørgensen, N. & Juul, A., Apr 2014, In: European Journal of Endocrinology. Supplement. 170, 4, p. 555-63 9 p.

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

  45. 2013
  46. Published

    Growth hormone (GH) activity is associated with increased serum oestradiol and reduced Anti-Müllerian Hormone in healthy male volunteers treated with GH and a GH antagonist

    Andreassen, Mikkel, Frystyk, J., Faber, Jens, Kristensen, L. Ø. & Juul, Anders, 2013, In: Andrology. 1, 4, p. 595-601 7 p.

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

  47. 2011
  48. Published

    Cardiac function in growth hormone deficient patients before and after 1 year with replacement therapy: a magnetic resonance imaging study

    Andreassen, Mikkel, Faber, Jens, Kjær, A., Petersen, C. L., Kristensen, L. Ø. & Kjær, Andreas, 1 Mar 2011, In: Pituitary. 14, 1, p. 1-10 10 p.

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

  49. 2010
  50. Published

    Cardiac effects of 3 months treatment of acromegaly evaluated by magnetic resonance imaging and B-type natriuretic peptides

    Andreassen, Mikkel, Faber, J., Kjær, Andreas, Petersen, C. L., Kristensen, L. Ø. & Faber, Jens, 1 Dec 2010, In: Pituitary. 13, 4, p. 329-36 8 p.

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

  51. Published

    The growth hormone/insulin-like growth factor-I system in chronic heart failure and its interaction with adiponectin

    Andreassen, Mikkel, 1 Nov 2010, In: European Journal of Heart Failure. 12, 11, p. 1154-5 2 p.

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

  52. Published

    Associations between plasma insulin-like growth factor-I and the markers of inflammation interleukin 6, C-reactive protein and YKL-40 in an elderly background population

    Andreassen, Mikkel, Raymond, I., Hildebrandt, P., Kistorp, C., Rathcke, C., drb459, drb459, Faber, Jens & Kristensen, L. O., 1 Jul 2010, In: Inflammation Research. 59, 7, p. 503-10 8 p.

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

  53. Published

    Interferon-beta treatment associated with a biochemical profile suggestive of acromegaly. A case report of a patient treated for multiple sclerosis

    Andreassen, Mikkel, Frystyk, J., Miller, K. K. & Kristensen, L. Ø., 2010, In: Scandinavian Journal of Clinical & Laboratory Investigation. 70, 7, p. 519-522 4 p.

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

  54. Published

    The Growth hormone system and cardiac function in patients with growth hormone disturbances and in the normal population

    Andreassen, Mikkel, 2010

    Research output: Book/Report › Ph.D. thesis › Research

  55. 2009
  56. Published

    Characteristics and reference ranges of Insulin-Like Growth Factor-I measured with a commercially available immunoassay in 724 healthy adult Caucasians

    Andreassen, Mikkel, Nielsen, K., Raymond, I., Kristensen, L. Ø., Faber, Jens, Andreassen, M., Nielsen, K. R., Raymond, I., Kristensen, L. Ø. & Faber, Jens, 2009, In: Scandinavian Journal of Clinical & Laboratory Investigation. 69, 8, p. 880-5 6 p.

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

  57. Published

    IGF1 as predictor of all cause mortality and cardiovascular disease in an elderly population

    Andreassen, Mikkel, Raymond, I., Kistorp, C., Hildebrandt, P., Faber, Jens, Kristensen, L. Ø., Andreassen, M., Raymond, I., Kistorp, C., Hildebrandt, P., Faber, Jens & Kristensen, L. Ø., 2009, In: European Journal of Endocrinology. 160, 1, p. 25-31 6 p.

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

  58. Published

    Plasma insulin-like growth factor I as predictor of progression and all cause mortality in chronic heart failure

    Andreassen, Mikkel, Kistorp, C., Raymond, I., Hildebrandt, P., Gustafsson, Finn, Kristensen, L. Ø., Faber, Jens, Andreassen, M., Kistorp, C., Raymond, I., Hildebrandt, P., Gustafsson, Finn, Kristensen, L. Ø. & Faber, Jens, 2009, In: Growth Hormone & IGF Research. 19, 6, p. 486-90 4 p.

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

  59. 2007
  60. Published

    Concentrations of the acute phase reactants high-sensitive C-reactive protein and YKL-40 and of interleukin-6 before and after treatment in patients with acromegaly and growth hormone deficiency

    Andreassen, Mikkel, drb459, drb459 & Kristensen, L. Ø., Dec 2007, In: Clinical Endocrinology. 67, 6, p. 909-16 8 p.

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

  61. Published

    N-terminal pro-B-type natriuretic peptide in patients with growth hormone disturbances

    Andreassen, Mikkel, Faber, Jens, drb459, drb459, Kistorp, Caroline Michaela Nervil & Kristensen, L. Ø., May 2007, In: Clinical Endocrinology. 66, 5, p. 619-25 7 p.

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

ID: 10930283