Helle Klingenberg Iversen

Helle Klingenberg Iversen

Clinical Associate Professor

Member of:

  • Neurology


  1. 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 journalJournal articleResearchpeer-review

  2. Published

    Renal Impairment and Risk of Acute Stroke: The INTERSTROKE Study

    Smyth, A., Judge, C., Wang, X., Pare, G., Rangarajan, S., Canavan, M., Chin, S. L., Al-Hussain, F., Yusufali, A. M., Elsayed, A., Damasceno, A., Avezum, A., Czlonkowska, A., Rosengren, A., Dans, A. L., Oguz, A., Mondo, C., Weimar, C., Ryglewicz, D., Xavier, D. & 13 others, Lanas, F., Malaga, G., Hankey, G. J., Iversen, Helle Klingenberg, Zhang, H., Yusoff, K., Pogosova, N., Lopez-Jamarillo, P., Langhorne, P., Diaz, R., Oveisgharan, S., Yusuf, S. & O'Donnell, M., 1 Jun 2021, In: Neuroepidemiology. 55, 3, p. 206-215 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Registration of acute stroke: validity in the Danish Stroke Registry and the Danish National Registry of Patients

    Wildenschild, C., Mehnert, F., Thomsen, R. W., Iversen, Helle Klingenberg, Vestergaard, K., Ingeman, A. & Johnsen, S. P., 2014, In: Clinical Epidemiology. 6, p. 27-36 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Registration of acute stroke: validity in the Danish Stroke Registry and the Danish National Registry of Patients

    Wildenschild, C., Mehnert, F., Thomsen, R. W., Iversen, Helle Klingenberg, Vestergaard, K., Ingeman, A. & Johnsen, S. P., 2013, In: Clinical Epidemiology. 6, p. 27-36 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Reducing delay to endovascular reperfusion after relocating a thrombolysis unit

    Laugesen, N. G., Hansen, Klaus, Højgaard, J., Iversen, Helle Klingenberg & Truelsen, Thomas Clement, 2022, In: Frontiers in Neurology. 13, 8 p., 989607.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Reduced arterial diameter during static exercise in humans

    Olesen, H. L., Mitchell, J. H., Friedman, D. B., Iversen, Helle Klingenberg & Secher, Niels H., Apr 1995, In: Acta Physiologica Scandinavica. 153, 4, p. 335-41 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    RAAS and stress markers in acute ischemic stroke: preliminary findings

    Back, C., Thiesen, K. L., Olsen, K. S., Edvinsson, L., Jensen, L. T., Larsen, V. A. & Iversen, Helle Klingenberg, Feb 2015, In: Acta Neurologica Scandinavica. 131, 2, p. 132-139 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. 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 journalJournal articleResearchpeer-review

  9. Published

    Quantification of Tau-A in serum after brain injury: a comparison of two analytical platforms, ELISA and electrochemiluminescence immunoassay

    Tzara, O., Amalie Simonsen, S., West, A. S., Asser Karsdal, M., Iversen, Helle Klingenberg & Henriksen, K., 2022, In: Brain Injury. 36, 6, p. 792-799 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Processes of care and associated factors in patients with stroke by immigration status

    Mkoma, George Frederick, Johnsen, S. P., Agyemang, C., Hedegaard, J. N., Iversen, Helle Klingenberg, Andersen, G. & Nørredam, Marie Louise, 2022, In: Medical Care. 3, 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Prevalence of lower urinary tract symptoms (LUTS) in stroke patients: a cross-sectional, clinical survey

    Tibaek, S., Gard, G., Klarskov, P., Iversen, Helle Klingenberg, Dehlendorff, C. & Jensen, Rigmor Højland, 1 Jan 2008, In: Neurourology and Urodynamics. 27, 8, p. 763-71 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Prevalence of lower urinary tract symptoms (LUTS) in stroke patients: a cross-sectional, clinical survey

    Tibaek, S., Gard, G., Klarskov, P., Iversen, Helle Klingenberg, Dehlendorff, Christian & Jensen, Rigmor Højland, 2008, In: Neurourology and Urodynamics. 27, 8, p. 763-71 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Presentation of a new instrument: the diagnostic headache diary

    Russell, M. B., Rasmussen, B. K., Brennum, J., Iversen, Helle Klingenberg, Jensen, Rigmor Højland & Olesen, Jes, Dec 1992, In: Cephalalgia : an international journal of headache. 12, 6, p. 369-74 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Prednisolone reduces nitric oxide-induced migraine

    Tfelt-Hansen, P., Daugaard, D., Lassen, L. H., Iversen, Helle Klingenberg & Olesen, Jes, Oct 2009, In: European journal of neurology : the official journal of the European Federation of Neurological Societies. 16, 10, p. 1106-11 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Preclinical validation of electrochemotherapy as an effective treatment for brain tumors

    Agerholm-Larsen, B., Iversen, Helle Klingenberg, Ibsen, Per Holger, Moller, J. M., Mahmood, F., Jensen, K. S., Gehl, Julie & Møller, J. M., 1 Jun 2011, In: Cancer Research. 71, 11, p. 3753-62 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Practice patterns and outcomes after stroke across countries at different economic levels (INTERSTROKE): an international observational study

    Langhorne, P., O'Donnell, M. J., Chin, S. L., Zhang, H., Xavier, D., Avezum, A., Mathur, N., Turner, M., MacLeod, M. J., Lopez-Jaramillo, P., Damasceno, A., Hankey, G. J., Dans, A. L., Elsayed, A., Mondo, C., Wasay, M., Czlonkowska, A., Weimar, C., Yusufali, A. H., Hussain, F. A. & 22 others, Lisheng, L., Diener, H., Ryglewicz, D., Pogosova, N., Iqbal, R., Diaz, R., Yusoff, K., Oguz, A., Wang, X., Penaherrera, E., Lanas, F., Ogah, O. S., Ogunniyi, A., Iversen, Helle Klingenberg, Malaga, G., Rumboldt, Z., Magazi, D., Nilanont, Y., Rosengren, A., Oveisgharan, S., Yusuf, S. & INTERSTROKE collaborators, I. C., 2018, In: Lancet Oncology. 391, 10134, p. 2019-2027 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Polysomnographic indicators of mortality in stroke patients

    Ponsaing, L. B., Iversen, Helle Klingenberg & Jennum, Poul, May 2017, In: Sleep and Breathing. 21, 2, p. 235-242 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Pleocytosis in cerebrospinal fluid attributed to ischemic stroke: A review of the literature

    Rundblad, L. I. S., Iversen, Helle Klingenberg & West, A. S., 2023, In: Journal of the Neurological Sciences. 449, 9 p., 120664.

    Research output: Contribution to journalReviewResearchpeer-review

  19. Published

    Phosphodiesterase4D (PDE4D)--A risk factor for atrial fibrillation and stroke?

    Jørgensen, C., Yasmeen, S., Iversen, Helle Klingenberg & Kruuse, Christina Rostrup, 15 Dec 2015, In: Journal of the Neurological Sciences. 359, 1-2, p. 266-74 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. 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 journalJournal articleResearchpeer-review

  21. Published

    Pharyngeal Electrical Stimulation for Treatment of Dysphagia in Subacute Stroke: A Randomized Controlled Trial

    Bath, P. M. W., Scutt, P., Love, J., Clavé, P., Cohen, D., Dziewas, R., Iversen, Helle Klingenberg, Ledl, C., Ragab, S., Soda, H., Warusevitane, A., Woisard, V., Hamdy, S. & Swallowing Treatment Using Pharyngeal Electrical Stimulation (STEPS) Trial Investigators, S. T. U. P. E. S. (. T. I., Jun 2016, In: Stroke. 47, 6, p. 1562-1570 + tillæg 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    Patients' perceptions of the benefits and problems of using the ActiGait implanted drop-foot stimulator

    Burridge, J. H., Haugland, M., Larsen, B., Svaneborg, N., Iversen, Helle Klingenberg, Christensen, P. B., Pickering, R. M. & Sinkjaer, T., Nov 2008, In: Journal of Rehabilitation Medicine. 40, 10, p. 873-5 3 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Patient-tailored transcranial direct current stimulation to improve stroke rehabilitation: study protocol of a randomized sham-controlled trial

    Kolmos, M., Madsen, M. J., Liu, M. L., Karabanov, Anke Ninija, Johansen, K. L., Thielscher, A., Gandrup, K., Lundell, H., Fuglsang, S., Thade, E., Christensen, H., Iversen, Helle Klingenberg, Siebner, Hartwig Roman & Kruuse, Christina Rostrup, 2023, In: Trials. 24, 16 p., 216.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    Patent Foramen Ovale Closure or Antiplatelet Therapy for Cryptogenic Stroke

    Søndergaard, Lars, Kasner, S. E., Rhodes, J. F., Andersen, G., Iversen, Helle Klingenberg, Nielsen-Kudsk, J. E., Settergren, M., Sjöstrand, C., Roine, R. O., Hildick-Smith, D., Spence, J. D., Thomassen, L. & Gore REDUCE Clinical Study Investigators, G. R. C. S. I., 2017, In: New England Journal of Medicine. 377, 11, p. 1033-1042

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    Patent Foramen Ovale Closure Decreases the Incidence but Not the Size of New Brain Infarction on Magnetic Resonance Imaging: An Analysis of the REDUCE Trial

    Messé, S. R., Erus, G., Bilello, M., Davatzikos, C., Andersen, G., Iversen, Helle Klingenberg, Roine, R. O., Sjöstrand, C., Rhodes, J. F., Søndergaard, Lars & Kasner, S. E., 2021, In: Stroke. 52, 11, p. 3419-3426

    Research output: Contribution to journalJournal articleResearchpeer-review

  26. Published

    P2Y12 Receptor Antagonist, Clopidogrel, Does Not Contribute to Risk of Osteoporotic Fractures in Stroke Patients

    Jørgensen, Niklas Rye, Schwarz, Peter, Iversen, Helle Klingenberg & Vestergaard, P., 2017, In: Frontiers in Pharmacology. 8, 8 p., 821.

    Research output: Contribution to journalJournal articleResearchpeer-review

  27. Published

    Nyt redskab til kommunikation med afasiramte

    Mathiesen, L. L., Forchhammer, B., Iversen, Helle Klingenberg & Jensen, Lise Randrup, 2014, In: Sygeplejersken. 11, p. 66-69 4 p.

    Research output: Contribution to journalJournal articleCommunication

  28. Published

    Nursing staffs self-perceived outcome from a rehabilitation 24/7 educational programme: a mixed-methods study in stroke care

    Loft, M. I., Esbensen, Bente Appel, Kirk, K., Pedersen, L., Martinsen, B., Iversen, Helle Klingenberg, Mathiesen, L. L. & Poulsen, I., 2018, In: BMC Nursing. 17, 13 p., 17.

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. Published

    Nurses' and nurse assistants' beliefs, attitudes and actions related to role and function in an inpatient stroke rehabilitation unit-A qualitative study

    Loft, M. I., Poulsen, I., Esbensen, Bente Appel, Iversen, Helle Klingenberg, Mathiesen, L. L. & Martinsen, B., Dec 2017, In: Journal of Clinical Nursing. 26, 23-24, p. 4905-4914 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  30. Published

    No increase of calcitonin gene-related peptide in jugular blood during migraine

    Tvedskov, J., Lipka, K., dlt446, dlt446, Iversen, Helle Klingenberg, Schifter, S. & Olesen, Jes, 1 Oct 2005, In: Annals of Neurology. 58, 4, p. 561-8 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  31. 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 journalJournal articleResearchpeer-review

  32. 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 journalJournal articleResearchpeer-review

  33. Published

    Nitroglycerin provocation in normal subjects is not a useful human migraine model?

    Tvedskov, Jesper Filtenborg, Iversen, Helle Klingenberg, Olesen, Jes & Tfelt-Hansen, P., Aug 2010, In: Cephalalgia : an international journal of headache. 30, 8, p. 928-32 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  34. 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 journalJournal articleResearchpeer-review

  35. Published

    Nitric oxide supersensitivity: a possible molecular mechanism of migraine pain

    Olesen, Jes, Iversen, Helle Klingenberg & Thomsen, L. L., Aug 1993, In: NeuroReport. 4, 8, p. 1027-30 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  36. Published

    Nitric oxide is a key molecule in migraine and other vascular headaches

    Olesen, Jes, Thomsen, L. L. & Iversen, Helle Klingenberg, May 1994, In: Trends in Pharmacological Sciences. 15, 5, p. 149-53 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. Published

    Neuroregeneration and Vascular Protection by Citalopram in Acute Ischemic Stroke (TALOS): A Randomized Controlled Study

    Kraglund, K. L., Mortensen, J. K., Damsbo, A. G., Modrau, B., Simonsen, S. A., Iversen, Helle Klingenberg, Madsen, M., Grove, E. L., Johnsen, S. P. & Andersen, G., 2018, In: Stroke. 49, 11, p. 2568-2576

    Research output: Contribution to journalJournal articleResearchpeer-review

  38. 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 journalJournal articleResearchpeer-review

  39. Published

    Multiple brain metastases - current management and perspectives for treatment with electrochemotherapy

    Linnert, M., Iversen, Helle Klingenberg & Gehl, Julie, Dec 2012, In: Radiology and Oncology. 46, 4, p. 271-8 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  40. 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 journalJournal articleResearchpeer-review

  41. Published

    Motor Imagery based Brain Computer Interface Paradigm for Upper Limb Stroke Rehabilitation

    Petersen, J., Iversen, Helle Klingenberg & Puthusserypady, S., 2018, 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2018. IEEE, p. 1960-1963 4 p. 8512615. (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS, Vol. 2018-July).

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  42. Published

    Mortality and use of psychotropic medication in patients with stroke: a population-wide, register-based study

    Jennum, Poul, Baandrup, Lone, Iversen, Helle Klingenberg, Ibsen, R. & Kjellberg, J., 8 Mar 2016, In: B M J Open. 6, 3, 7 p., e010662.

    Research output: Contribution to journalJournal articleResearchpeer-review

  43. 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 journalJournal articleResearchpeer-review

  44. 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 journalReviewResearchpeer-review

  45. Published

    Medical dispatchers recognise substantial amount of acute stroke during emergency calls

    Viereck, S., Møller, T. P., Iversen, Helle Klingenberg, Christensen, H. & Lippert, F., 7 Jul 2016, In: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. 24, 7 p., 89.

    Research output: Contribution to journalJournal articleResearchpeer-review

  46. Published

    Lower Urinary Tract Symptoms, Erectile Dysfunction, and Quality of Life in Poststroke Men: A Controlled Cross-Sectional Study

    Tibaek, S., Gard, G., Dehlendorff, C., Iversen, Helle Klingenberg, Biering-Sørensen, Fin & Jensen, Rigmor Højland, 2017, In: American Journal of Men's Health. 11, 3, p. 748-756

    Research output: Contribution to journalJournal articleResearchpeer-review

  47. Published

    Low frequency oscillations in cephalic vessels assessed by near infrared spectroscopy

    Phillip, D., Schytz, Henrik Winther, Selb, J., Payne, S., Iversen, Helle Klingenberg, Skovgaard, Lene Theil, Boas, D. A. & dlt446, dlt446, Nov 2012, In: European Journal of Clinical Investigation. 42, 11, p. 1180-8 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  48. Published

    Long-term immune cell profiling in stroke patients with or without infections

    Sørensen, N. V., Hasseldam, Henrik, Johansen, F. F., Kristiansen, Uffe, Overgaard, K., Iversen, Helle Klingenberg & Rasmussen, Rune Skovgaard, 2024, In: International Journal of Neuroscience. 134, 2, p. 197-205

    Research output: Contribution to journalJournal articleResearchpeer-review

  49. Published

    Lemierre's syndrome with stroke and stenosis of the internal carotid artery suggesting focal vasculitis

    Rahimi, D., Langkilde, Annika Reynberg, Iversen, Helle Klingenberg & Truelsen, Thomas Clement, 2020, In: Journal of the Neurological Sciences. 409, 2 p., 116632.

    Research output: Contribution to journalLetterResearchpeer-review

  50. 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 journalJournal articleResearchpeer-review

ID: 47983134