Helle Klingenberg Iversen

Helle Klingenberg Iversen

Clinical Associate Professor

Member of:

  • Neurology


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  1. Published

    Clinical characteristics of migraine and episodic tension-type headache in relation to old and new diagnostic criteria

    Iversen, Helle Klingenberg, Langemark, M., Andersson, P. G., Hansen, P. E. & Olesen, Jes, Jul 1990, In: Headache Online. 30, 8, p. 514-9 6 p.

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

  2. Published

    Headache induced by a nitric oxide donor (nitroglycerin) responds to sumatriptan. A human model for development of migraine drugs

    Iversen, Helle Klingenberg & Olesen, Jes, Oct 1996, In: Cephalalgia : an international journal of headache. 16, 6, p. 412-8 7 p.

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

  3. Published

    N-acetylcysteine enhances nitroglycerin-induced headache and cranial arterial responses

    Iversen, Helle Klingenberg, Aug 1992, In: Clinical Pharmacology and Therapeutics. 52, 2, p. 125-33 9 p.

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

  4. Published

    Søvnrelaterede sygdomme ved apopleksi

    Iversen, Helle Klingenberg & Jennum, Poul, 2013, Søvn. Jennum, P. (ed.). Kbh.: Munksgaard , p. 175-180 5 p.

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

  5. Published

    Arterial diameter during central volume depletion in humans

    Iversen, Helle Klingenberg, Madsen, P., Matzen, S. & Secher, Niels H., 1995, In: European Journal of Applied Physiology and Occupational Physiology. 72, 1-2, p. 165-9 5 p.

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

  6. Published

    Lack of tolerance of headache and radial artery diameter during a 7 hour intravenous infusion of nitroglycerin

    Iversen, Helle Klingenberg, Nielsen, T. H., Tfelt-Hansen, P. & Olesen, Jes, 1993, In: European Journal of Clinical Pharmacology. 44, 1, p. 47-50 4 p.

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

  7. Published

    Intracranial hemodynamics during intravenous infusion of glyceryl trinitrate

    Iversen, Helle Klingenberg, Holm, S., Friberg, L. & Tfelt-Hansen, P., Jun 2008, In: Journal of Headache and Pain. 9, 3, p. 177-80 4 p.

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

  8. Published

    Intravenous nitroglycerin as an experimental model of vascular headache. Basic characteristics

    Iversen, Helle Klingenberg, Olesen, Jes & Tfelt-Hansen, P., Jul 1989, In: Pain. 38, 1, p. 17-24 8 p.

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

  9. Published

    Arterial responses during migraine headache

    Iversen, Helle Klingenberg, Nielsen, T. H., Olesen, Jes & Tfelt-Hansen, P., 6 Oct 1990, In: Lancet. 336, 8719, p. 837-9 3 p.

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

  10. Published

    Experimental headache in humans

    Iversen, Helle Klingenberg, 1995, In: Cephalalgia : an international journal of headache. 15, 4, p. 281-7 7 p.

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

  11. Published

    Human migraine models

    Iversen, Helle Klingenberg, Sep 2001, In: Cephalalgia : an international journal of headache. 21, 7, p. 781-5 5 p.

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

  12. Published

    Nitroglycerin-induced headache is not dependent on histamine release: support for a direct nociceptive action of nitric oxide

    Iversen, Helle Klingenberg & Olesen, Jes, Dec 1994, In: Cephalalgia : an international journal of headache. 14, 6, p. 437-42 6 p.

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

  13. Published

    Dose-dependent headache response and dilatation of limb and extracranial arteries after three doses of 5-isosorbide-mononitrate

    Iversen, Helle Klingenberg, Nielsen, T. H., Garre, K., Tfelt-Hansen, P. & Olesen, Jes, 1992, In: European Journal of Clinical Pharmacology. 42, 1, p. 31-5 5 p.

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

  14. Published

    Cortical hemodynamic response during cognitive Stroop test in acute stroke patients assessed by fNIRS

    Heiberg, A. V., Simonsen, S. A., Schytz, Henrik Winther & Iversen, Helle Klingenberg, 2023, In: NeuroRehabilitation. 52, 2, p. 199-217 19 p.

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

  15. Published

    Specialized Outpatient Clinic vs Stroke Unit for TIA and Minor Stroke A Cohort Study

    Hastrup, S., Johnsen, S. P., Jensen, M., von Weitzel-Mudersbach, P., Simonsen, C. Z., Hjort, N., Moller, A. T., Harbo, T., Poulsen, M. S., Iversen, Helle Klingenberg, Damgaard, D. & Andersen, G., 2021, In: Neurology. 96, 8, p. E1096-E1109 14 p.

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

  16. Published

    Rivaroxaban for Stroke Prevention after Embolic Stroke of Undetermined Source

    NAVIGATE ESUS Investigators, Amarenco, P., Ameriso, S. F., Arauzo, A., Andersen, G., Christensen, H., Christensen, T., Damgaard, D., Iversen, H., Hansen, C. K., Kruuse, C., Martinussen, M., Modrau, B., Murtuzova, A., Ovesen, C., Papina, M., Svaneborg, N., Von Weitzel-Mudersbach, P., Xiong, W., Zhang, C. & 1 others, Zweifler, R., 2018, In: The New England Journal of Medicine. 378, 23, p. 2191-2201

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

  17. Published

    Hemiplegic migraine aura begins with cerebral hypoperfusion: imaging in the acute phase

    Hansen, J. M., Schytz, Henrik Winther, Larsen, V. A., Iversen, Helle Klingenberg & dlt446, dlt446, Sep 2011, In: Headache Online. 51, 8, p. 1289-96 8 p.

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

  18. Published

    Retinal angiographic blood flowmetry is reduced in the ocular ischaemic syndrome

    Hansen, G. L., Kofoed, P. K., Munch, I. C., Sillesen, Henrik, Jensen, L. P., Iversen, Helle Klingenberg & Larsen, Michael, Oct 2013, In: Danish Medical Bulletin (Online). 60, 10, p. 1-5 5 p., A4716.

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

  19. Published

    Thrombolysis with alteplase 3 to 4.5 hours after acute ischemic stroke

    Hacke, W., Kaste, M., Bluhmki, E., Brozman, M., Dávalos, A., Guidetti, D., Larrue, V., Lees, K. R., Medeghri, Z., Machnig, T., Schneider, D., von Kummer, R., Wahlgren, N., Toni, D., ECASS Investigators, E. I. & Iversen, Helle Klingenberg, 25 Sep 2008, In: New England Journal of Medicine. 359, 13, p. 1317-29 13 p.

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

  20. Published

    Trends in incidence of oral anticoagulant-related intracerebral hemorrhage and sales of oral anticoagulants in Capital Region of Denmark 2010–2017

    Grundtvig, J., Ovesen, C., Havsteen, I., Christensen, T., Gaist, D., Iversen, Helle Klingenberg, Kruuse, Christina Rostrup, Lilja-Cyron, Alexander, Ægidius, K., Rosenbaum, S., Meden, Per, Marstrand, Jacob Rørbech, Christensen, Louisa Marguerite, Steiner, Thorsten & Christensen, Hanne Krarup, 2021, In: European Stroke Journal. 6, 2, p. 143-150 8 p.

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

  21. Published

    Sex-Differences in Oral Anticoagulant-Related Intracerebral Hemorrhage

    Grundtvig, J., Ovesen, C., Steiner, Thorsten, Carcel, C., Gaist, D., Christensen, Louisa Marguerite, Marstrand, Jacob Rørbech, Meden, Per, Rosenbaum, S., Iversen, Helle Klingenberg, Kruuse, Christina Rostrup, Christensen, T., Ægidius, K., Havsteen, I. & Christensen, Hanne Krarup, 2022, In: Frontiers in Neurology. 13, 832903.

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

  22. Published

    Melatonin profile in healthy, elderly subjects - A systematic literature review

    Godfrey, S., Iversen, Helle Klingenberg & West, A. S., 2022, In: Chronobiology International. 39, 4, p. 476-492 17 p.

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

  23. Published

    Edoxaban versus warfarin in patients with atrial fibrillation

    Giugliano, R. P., Ruff, C. T., Braunwald, E., Murphy, S. A., Wiviott, S. D., Halperin, J. L., Waldo, A. L., Ezekowitz, M. D., Weitz, J. I., Špinar, J., Ruzyllo, W., Ruda, M., Koretsune, Y., Betcher, J., Shi, M., Grip, L. T., Patel, S. P., Patel, I., Hanyok, J. J., Mercuri, M. & 3 others, Antman, E. M., ENGAGE AF-TIMI 48 Investigators, E. A. 4. I. & Iversen, Helle Klingenberg, 28 Nov 2013, In: New England Journal of Medicine. 369, 22, p. 2093-104 12 p.

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

  24. Published

    Migraine pain associated with middle cerebral artery dilatation: reversal by sumatriptan

    Friberg, L., Olesen, Jes, Iversen, Helle Klingenberg & Sperling, B., 6 Jul 1991, In: Lancet. 338, 8758, p. 13-7 5 p.

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

  25. Published

    Interictal "patchy" regional cerebral blood flow patterns in migraine patients. A single photon emission computerized tomographic study

    Friberg, L., Olesen, Jes, Iversen, Helle Klingenberg, Nicolic, I., Sperling, B., Lassen, N. A., Olsen, T. S. & Tfelt-Hansen, P., Sep 1994, In: European journal of neurology : the official journal of the European Federation of Neurological Societies. 1, 1, p. 35-43 9 p.

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

  26. Published

    Safety and efficacy of intravenous thrombolysis in stroke patients on prior antiplatelet therapy in the WAKE-UP trial

    Frey, B. M., Boutitie, F., Cheng, B., Cho, T-H., Ebinger, M., Endres, M., Fiebach, J. B., Fiehler, J., Ford, I., Galinovic, I., Königsberg, A., Puig, J., Roy, P., Wouters, A., Magnus, T., Thijs, V., Lemmens, R., Muir, K. W., Nighoghossian, N., Pedraza, S. & 12 others, Simonsen, C. Z., Gerloff, C., Thomalla, G., WAKE-UP Investigators, W. I., Thomalla, G., Gerloff, C., Golsari, A., Iversen, Helle Klingenberg, Truelsen, Thomas Clement, Gorriz, D., Oberndorfer, S. & Prohaska, E., 2020, In: Neurological research and practice. 2, 9 p., 40.

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

  27. Published

    Supported Conversation for hospital staff: A questionnaire study of self-evaluated outcome

    Forchhammer, H. B., Løvholt, A. P., Mathiesen, L. L., Iversen, Helle Klingenberg, Larsen, L. S. L., Norup, A. & Jensen, Lise Randrup, 12 May 2016.

    Research output: Contribution to conference › Poster › Research › peer-review

  28. Published

    Undervisning af personale styrker inddragelse af afasiramte patienter

    Forchhammer, B., Jensen, Lise Randrup, Iversen, Helle Klingenberg, Mathiesen, L. L., Løvholt, A. P. & Sørensen, I. R., 2013, In: Apopleksi : medlemsblad. 1, p. 12-14 3 p.

    Research output: Contribution to journal › Journal article › Communication

  29. Published

    Stroke admissions and revascularization treatments in Denmark during COVID-19

    Drenck, N., Grundtvig, J., Christensen, T., Iversen, Helle Klingenberg, Kruuse, Christina Rostrup, Truelsen, Thomas Clement, Wienecke, Troels & Christensen, Hanne Krarup, 2022, In: Acta Neurologica Scandinavica. 145, 2, p. 160-170

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

  30. Published

    An end-to-end deep learning approach to MI-EEG signal classification for BCIs

    Dose, H., Møller, J. S., Iversen, Helle Klingenberg & Puthusserypady, S., 2018, In: Expert Systems with Applications. 114, p. 532-542 11 p.

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

  31. Published

    A Deep Learning MI - EEG Classification Model for BCIs

    Dose, H., Moller, J. S., Puthusserypady, S. & Iversen, Helle Klingenberg, 2018, 2018 26th European Signal Processing Conference (EUSIPCO). IEEE, p. 1676-1679 4 p.

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

  32. Published

    Effects of aspirin plus extended-release dipyridamole versus clopidogrel and telmisartan on disability and cognitive function after recurrent stroke in patients with ischaemic stroke in the Prevention Regimen for Effectively Avoiding Second Strokes (PRoFESS) trial: a double-blind, active and placebo-controlled study

    Diener, H-C., Sacco, R. L., Yusuf, S., Cotton, D., Ounpuu, S., Lawton, W. A., Palesch, Y., Martin, R. H., Albers, G. W., Bath, P., Bornstein, N., Chan, B. P. L., Chen, S-T., Cunha, L., Dahlöf, B., De Keyser, J., Donnan, G. A., Estol, C., Gorelick, P., Gu, V. & 16 others, Hermansson, K., Hilbrich, L., Kaste, M., Lu, C., Machnig, T., Pais, P., Roberts, R., Skvortsova, V., Teal, P., Toni, D., VanderMaelen, C., Voigt, T., Weber, M., Yoon, B., Prevention Regimen for Effectively Avoiding Second Strokes (PRoFESS) study group, P. R. F. E. A. S. S. (. S. G. & Iversen, Helle Klingenberg, Oct 2008, In: Lancet Neurology. 7, 10, p. 875-84 10 p.

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

  33. Published

    A Systematic Review of the Circadian Rhythm of Bone Markers in Blood

    Diemar, S. S., Dahl, S. S., West, A. S., Simonsen, S. A., Iversen, Helle Klingenberg & Jørgensen, Niklas Rye, 2023, In: Calcified Tissue International. 112, 2, p. 126–147 22 p.

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

  34. Published

    Multiple Soluble Components of the Glycocalyx Are Increased in Patient Plasma After Ischemic Stroke

    Dellavalle, B., Hasseldam, Henrik, Johansen, F. F., Iversen, Helle Klingenberg, Rungby, Jørgen & Hempel, C., 2019, In: Stroke. 50, 10, p. 2948-2951 4 p.

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

  35. Published

    Delayed migraine-like headache in healthy volunteers after a combination of acetazolamide and glyceryl trinitrate

    Daugaard, D., Thomsen, L. L., Iversen, Helle Klingenberg, Olesen, Jes & Thomsen, L. L., 2009, In: Cephalalgia. 29, 12, p. 1294-1300 6 p.

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

  36. Published

    No effect of pure oxygen inhalation on headache induced by glyceryl trinitrate

    Daugaard, D., Tfelt-Hansen, P., Thomsen, L. L., Iversen, Helle Klingenberg & Olesen, Jes, 2010, In: Journal of Headache and Pain. 11, 2, p. 93-95 3 p.

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

  37. Published

    FBCSP and Adaptive Boosting for Multiclass Motor Imagery BCI Data Classification: A Machine Learning Approach

    Das, R., Lopez, P. S., Ahmed Khan, M., Iversen, Helle Klingenberg & Puthusserypady, S., 2020, 2020 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2020. IEEE, p. 1275-1279 5 p. 9283098

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

  38. Published

    Autonomic dysfunction after mild acute ischemic stroke and six months after: a prospective observational cohort study

    Damkjær, M., Simonsen, S. A., Heiberg, A. V., Mehlsen, J., West, A. S., Jennum, Poul & Iversen, Helle Klingenberg, Dec 2023, In: BMC Neurology. 23, 1, 26.

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

  39. Published

    Role of Proxy Respondents in International Stroke Research: Experience of the INTERSTROKE Study

    Costello, M. M., Judge, C., Reddin, C., Rangarajan, S., Langhorne, P., Zhang, H., Iversen, Helle Klingenberg, Xavier, D., Smyth, A., Canavan, M. D., Yusuf, S. & O'Donnell, M. J., 2022, In: Neuroepidemiology. 56, 5, p. 355-364 10 p.

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

  40. Published

    An adaptive CSP filter to investigate user independence in a 3-class MI-BCI paradigm

    Costa, A. P., Møller, J. S., Iversen, Helle Klingenberg & Puthusserypady, S., 2018, In: Computers in Biology and Medicine. 103, p. 24-33 10 p.

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

  41. Published

    Adaptive CSP for user independence in MI-BCI paradigm for upper LIMB stroke rehabilitation

    Costa, A. P., Moller, J. S., Iversen, Helle Klingenberg & Puthusserypady, S., 2019, 2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings. IEEE, p. 420-423 4 p. 8646403. (2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings).

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

  42. Published

    A systematic comparison of motion artifact correction techniques for functional near-infrared spectroscopy

    Cooper, R. J., Selb, J., Gagnon, L., Phillip, D., Schytz, Henrik Winther, Iversen, Helle Klingenberg, dlt446, dlt446 & Boas, D. A., 2012, In: Frontiers in Neuroscience. 6, p. 147

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

  43. Published

    Nitric oxide-induced headache may arise from extracerebral arteries as judged from tolerance to isosorbide-5-mononitrate

    Christiansen, I., Iversen, Helle Klingenberg, Olesen, Jes & Tfelt-Hansen, P., Aug 2008, In: Journal of Headache and Pain. 9, 4, p. 215-20 6 p.

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

  44. Published

    Induction of nitrate tolerance is not a useful treatment in cluster headache

    Christiansen, I., Iversen, Helle Klingenberg & Olesen, Jes, Jun 2000, In: Cephalalgia : an international journal of headache. 20, 5, p. 445-54 10 p.

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

  45. Published

    Headache characteristics during the development of tolerance to nitrates: pathophysiological implications

    Christiansen, I., Iversen, Helle Klingenberg & Olesen, Jes, Jun 2000, In: Cephalalgia : an international journal of headache. 20, 5, p. 437-44 8 p.

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

  46. Published

    Apopleksi i 2013: i Danmark og internationalt

    Christensen, H. & Iversen, Helle Klingenberg, 2 Jun 2014, In: Ugeskrift for Laeger. 176, 11A, p. 1 1 p.

    Research output: Contribution to journal › Journal article › Communication

  47. Published

    Quantitative Signal Intensity in Fluid-Attenuated Inversion Recovery and Treatment Effect in the WAKE-UP Trial

    Cheng, B., Boutitie, F., Nickel, A., Wouters, A., Cho, T-H., Ebinger, M., Endres, M., Fiebach, J. B., Fiehler, J., Galinovic, I., Puig, J., Thijs, V., Lemmens, R., Muir, K. W., Nighoghossian, N., Pedraza, S., Simonsen, C. Z., Gerloff, C., Thomalla, G., WAKE-UP (Efficacy and Safety of MRI-Based Thrombolysis inWake-Up Stroke Trial) investigators and administrative staff are as follows: & 10 others, Thomalla, G., Gerloff, C., Golsari, A., Marstrand, Jacob Rørbech, Ægidius, K. L., Meden, Per, Iversen, Helle Klingenberg, Gorriz, D., Oberndorfer, S. & Prohaska, E., 2020, In: Stroke. 51, 1, p. 209-215

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

  48. Published

    Cardiovascular risk factor control and outcomes in peripheral artery disease patients in the Reduction of Atherothrombosis for Continued Health (REACH) Registry

    Cacoub, P. P., Abola, M. T. B., Baumgartner, I., Bhatt, D. L., Creager, M. A., Liau, C., Goto, S., Röther, J., Steg, P. G., Hirsch, A. T., Iversen, Helle Klingenberg & REACH Registry Investigators, R. R. I., 1 Jun 2009, In: Atherosclerosis. 204, 2, p. e86-92

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

  49. Published

    Workforce Attachment after Ischemic Stroke – The Importance of Time to Thrombolytic Therapy

    Butt, J. H., Kragholm, K., Kruuse, Christina Rostrup, Christensen, H., Iversen, Helle Klingenberg, Johnsen, S. P., Rørth, R., Vinding, N. E., Yafasova, A., Christiansen, C. B., Gislason, Gunnar Hilmar, Torp-Pedersen, Christian, Køber, Lars Valeur & Fosbøl, E. L., 2021, In: Journal of Stroke and Cerebrovascular Diseases. 30, 11, 106031.

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

  50. Published

    Phase II trial to evaluate the ActiGait implanted drop-foot stimulator in established hemiplegia

    Burridge, J. H., Haugland, M., Larsen, B., Pickering, R. M., Svaneborg, N., Iversen, Helle Klingenberg, Christensen, P. B., Haase, J., Brennum, J. & Sinkjaer, T., Apr 2007, In: Journal of Rehabilitation Medicine. Supplement. 39, 3, p. 212-8 7 p.

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

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