Helle Klingenberg Iversen

Helle Klingenberg Iversen

Clinical Associate Professor

Member of:

  • Neurology


  1. 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 journalJournal articleResearchpeer-review

  2. Published

    Vorapaxar in the secondary prevention of atherothrombotic events

    Morrow, D. A., Braunwald, E., Bonaca, M. P., Ameriso, S. F., Dalby, A. J., Fish, M. P., Fox, K. A. A., Lipka, L. J., Liu, X., Nicolau, J. C., Ophuis, A. J. O., Paolasso, E., Scirica, B. M., Spinar, J., Theroux, P., Wiviott, S. D., Strony, J., Murphy, S. A., TRA 2P–TIMI 50 Steering Committee and Investigators, T. 2. 5. S. C. A. I. & Iversen, Helle Klingenberg, 12 Apr 2012, In: New England Journal of Medicine. 366, 15, p. 1404-13 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Venous plasma levels of endothelin-1 are not altered immediately after nitroglycerin infusion in healthy subjects

    Thomsen, L. L., Iversen, Helle Klingenberg, Emmeluth, C. & Bie, P., 1995, In: European Journal of Clinical Pharmacology. 48, 2, p. 139-42 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Variations in knowledge, awareness and treatment of hypertension and stroke risk by country income level

    O'Donnell, M., Hankey, G. J., Rangarajan, S., Chin, S. L., Rao-Melacini, P., Ferguson, J., Xavier, D., Lisheng, L., Zhang, H., Pais, P., Lopez-Jaramillo, P., Damasceno, A., Langhorne, P., Rosengren, A., Dans, A. L., Elsayed, A., Avezum, A., Mondo, C., Smyth, A., Judge, C. & 23 others, Diener, H. C., Ryglewicz, D., Czlonkowska, A., Pogosova, N., Weimar, C., Iqbal, R., Diaz, R., Yusoff, K., Yusufali, A., Oguz, A., Wang, X., Penaherrera, E., Lanas, F., Ogah, O. S., Ogunniyi, A., Iversen, Helle Klingenberg, Malaga, G., Rumboldt, Z., Oveisgharan, S., Alhussain, F., Daliwonga, M., Nilanont, Y. & Yusuf, S., 1 Feb 2021, In: Heart. 107, 4, p. 282-289 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Use of reperfusion therapy and time delay in patients with ischaemic stroke by immigration status: A register-based cohort study in Denmark

    Mkoma, George Frederick, Nørredam, Marie Louise, Iversen, Helle Klingenberg, Andersen, G. & Johnsen, S. P., 2022, In: European Journal of Neurology. 29, 7, p. 1952-1962 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Urinary Sodium and Potassium, and Risk of Ischemic and Hemorrhagic Stroke (INTERSTROKE): A Case–Control Study

    INTERSTROKE investigators, I. I., 20 Apr 2021, In: American Journal of Hypertension. 34, 4, p. 414-425 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. 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 journalJournal articleCommunication

  8. Published

    Trombolyse ved iskaemisk apopleksi

    Modrau, B., Vestergaard, K., Iversen, Helle Klingenberg, Homburg, A. F., Boysen, G. & Andersen, G., 1 Oct 2007, In: Ugeskrift for Laeger. 169, 40, p. 3383-5 3 p.

    Research output: Contribution to journalJournal articleCommunication

  9. Published

    Triptaner i migraenebehandlingen. En oversigt baseret pa tre Cochrane-reviews

    Tfelt-Hansen, P. & Iversen, Helle Klingenberg, 8 May 2006, In: Ugeskrift for Laeger. 168, 19, p. 1850-3 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. 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 journalJournal articleResearchpeer-review

  11. Published

    Treatment diary for botulinum toxin spasticity treatment: a pilot study

    Biering-Sørensen, B., Iversen, Helle Klingenberg, Frederiksen, I. M. S., Vilhelmsen, J. R. & Biering-Sørensen, Fin, 2017, In: International Journal of Rehabilitation Research. 40, 2, p. 175-184

    Research output: Contribution to journalLetterResearchpeer-review

  12. Published

    Transcranial Doppler and cardiovascular responses during cardiovascular autonomic tests in migraineurs during and outside attacks

    Thomsen, L. L., Iversen, Helle Klingenberg, Boesen, F. & Olesen, Jes, Oct 1995, In: Brain. 118 ( Pt 5), p. 1319-27 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    To nye metoder til etablering af sammenhængende patientforløb: Relationel koordinering samt InterProfessionel Læring og Samarbejde

    Jørgensen, P. E., Holtzmann, J. S., Lundbak, T. & Iversen, Helle Klingenberg, 2013, In: Bibliotek for Laeger. 205, 3, p. 266-279 14 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Timing and topography of cerebral blood flow, aura, and headache during migraine attacks

    Olesen, Jes, Friberg, L., Olsen, T. S., Iversen, Helle Klingenberg, Lassen, N. A., Andersen, A. R. & Karle, A., Dec 1990, In: Annals of Neurology. 28, 6, p. 791-8 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Time to treatment with intravenous alteplase and outcome in stroke: an updated pooled analysis of ECASS, ATLANTIS, NINDS, and EPITHET trials

    Lees, K. R., Bluhmki, E., von Kummer, R., Brott, T. G., Toni, D., Grotta, J. C., Albers, G. W., Kaste, M., Marler, J. R., Hamilton, S. A., Tilley, B. C., Davis, S. M., Donnan, G. A., Hacke, W., Allen, K., Mau, J., Meier, D., del Zoppo, G., De Silva, D. A., Butcher, K. S. & 7 others, Parsons, M. W., Barber, P. A., Levi, C., Bladin, C., Byrnes, G., ECASS, ATLANTIS, NINDS and EPITHET rt-PA Study Group, E. A. N. A. E. R. S. G. & Iversen, Helle Klingenberg, 15 May 2010, In: Lancet. 375, 9727, p. 1695-703 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. 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 journalJournal articleResearchpeer-review

  17. Published

    Thrombolysis outcomes in acute ischemic stroke patients with prior stroke and diabetes mellitus

    Mishra, N. K., Ahmed, N., Davalos, A., Iversen, Helle Klingenberg, Melo, T., Soinne, L., Wahlgren, N., Lees, K. R. & SITS and VISTA collaborators, S. A. V. C., 22 Nov 2011, In: Neurology. 77, 21, p. 1866-72 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Thrombolysis in acute ischemic stroke is associated with lower long-term hospital bed day use: A nationwide propensity score-matched follow-up study

    Terkelsen, T., Schmitz, M. L., Simonsen, C. Z., Hundborg, H. H., Christensen, Hanne Krarup, Gyllenborg, J., Sandal, B. F., Iversen, Helle Klingenberg, Madsen, C., Rasmussen, M., Vestergaard, K., Andersen, G. & Johnsen, S. P., 2016, In: International Journal of Stroke. 11, 8, p. 910-916 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    The prophylactic effect of valproate on glyceryltrinitrate induced migraine

    Tvedskov, J. F., Thomsen, L. L., Iversen, Helle Klingenberg, Gibson, A., Wiliams, P. & Olesen, Jes, 1 Jul 2004, In: Cephalalgia. 24, 7, p. 576-85 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    The feasibility of cross-sector videoconferences in discharge planning among stroke patients: a mixed-methods study scrutinising patient and staff perspectives

    Rosenkranz, S. H., Falster, A. A., Carstensen, T. S., Mathiesen, L. L., Iversen, Helle Klingenberg & Kimby, C. K., 2018, In: International Journal of Telemedicine and Clinical Practices. 3, 1, 44.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. Published

    The effect of propranolol on glyceryltrinitrate-induced headache and arterial response

    Tvedskov, J., Thomsen, L. L., Thomsen, L. L., Iversen, Helle Klingenberg, Williams, P., Gibson, A., Jenkins, K., Peck, R. & Olesen, Jes, 1 Dec 2004, In: Cephalalgia. 24, 12, p. 1076-87 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    The effect of pelvic floor muscle training on sexual function in men with lower urinary tract symptoms after stroke

    Tibaek, S., Gard, G., Dehlendorff, C., Iversen, Helle Klingenberg, Erdal, J., Biering-Sørensen, Fin, Dorey, G. & Jensen, R., 2015, In: Topics in Stroke Rehabilitation. 22, 3, p. 185-93 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    The effect of nitric oxide synthase inhibition on histamine induced headache and arterial dilatation in migraineurs

    Lassen, L. H., Christiansen, I., Iversen, Helle Klingenberg, Jansen-Olesen, I. & Olesen, Jes, Nov 2003, In: Cephalalgia : an international journal of headache. 23, 9, p. 877-86 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    The angiotensin-receptor blocker candesartan for treatment of acute stroke (SCAST): a randomised, placebo-controlled, double-blind trial

    Sandset, E. C., Bath, P. M. W., Boysen, G., Jatuzis, D., Kõrv, J., Lüders, S., Murray, G. D., Richter, P. S., Roine, R. O., Terént, A., Thijs, V., Berge, E., SCAST Study Group, S. S. G. & Iversen, Helle Klingenberg, 26 Feb 2011, In: Lancet. 377, 9767, p. 741-50 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    The Effects of Naturalistic Light on Diurnal Plasma Melatonin and Serum Cortisol Levels in Stroke Patients during Admission for Rehabilitation: A Randomized Controlled Trial

    West, A. S., Sennels, H. P., Simonsen, S. A., Schønsted, M., Zielinski, A. H., Hansen, N. C., Jennum, Poul, Sander, B., Wolfram, F. & Iversen, Helle Klingenberg, 2019, In: International Journal of Medical Sciences. 16, 1, p. 125-134 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  26. Published

    The Danish Prostatic Symptom Score (DAN-PSS-1) questionnaire is reliable in stroke patients

    Tibaek, S., Jensen, Rigmor Højland, Klarskov, P., Iversen, Helle Klingenberg & Gard, G., 2006, In: Neurourology and Urodynamics. 25, 4, p. 319-23 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  27. Published

    Telmisartan to prevent recurrent stroke and cardiovascular events

    Yusuf, S., Diener, H-C., Sacco, R. L., 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., PRoFESS Study Group, P. S. G. & Iversen, Helle Klingenberg, 18 Sep 2008, In: New England Journal of Medicine. 359, 12, p. 1225-37 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. 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 proceedingBook chapterResearchpeer-review

  29. 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 conferencePosterResearchpeer-review

  30. Published

    Sumatriptan (Imigran) til patienter med hemiplegisk migraene?

    Thomsen, L. L., Iversen, Helle Klingenberg & Olesen, Jes, 10 Aug 1992, In: Ugeskrift for Laeger. 154, 33, p. 2271

    Research output: Contribution to journalJournal articleCommunication

  31. Published

    Sudden Bilateral Deafness in a Patient with Transient Ischemic Attack: A Case Report

    Pihl, C., Back, C., Iversen, Helle Klingenberg & Amin, Faisal Mohammad, 2021, In: Case Reports in Neurology. 13, 1, p. 119-122 4 p.

    Research output: Contribution to journalLetterResearchpeer-review

  32. 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 journalJournal articleResearchpeer-review

  33. Published

    Strengthening the role and functions of nursing staff in inpatient stroke rehabilitation: developing a complex intervention using the Behaviour Change Wheel

    Loft, M. I., Martinsen, B., Esbensen, Bente Appel, Mathiesen, L. L., Iversen, Helle Klingenberg & Poulsen, I., 2017, In: International Journal of Qualitative Studies on Health and Well-Being. 12, 1, 15 p., 1392218.

    Research output: Contribution to journalJournal articleResearchpeer-review

  34. Published

    Strengthening nursing role and functions in stroke rehabilitation 24/7: A mixed-methods study assessing the feasibility and acceptability of an educational intervention programme

    Loft, M. I., Poulsen, I., Martinsen, B., Mathiesen, L. L., Iversen, Helle Klingenberg & Esbensen, Bente Appel, 2019, In: Nursing Open. 6, 1, p. 162-174

    Research output: Contribution to journalJournal articleResearchpeer-review

  35. Published

    Statin treatment before stroke reduces pro-inflammatory cytokine levels after stroke

    Schultz, N. E. Ø., Hasseldam, Henrik, Rasmussen, Rune Skovgaard, Vindegaard, N., McWilliam, O., Iversen, Helle Klingenberg & Johansen, F. F., 2019, In: Neurological Research. 41, 4, p. 289-297 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  36. Published

    Spontaneous low-frequency oscillations in cerebral vessels: applications in carotid artery disease and ischemic stroke

    Schytz, Henrik Winther, Hansson, A., Phillip, D., Selb, J., Boas, D. A., Iversen, Helle Klingenberg & dlt446, dlt446, 2010, In: Journal of Stroke & Cerebrovascular Diseases. 19, 6, p. 465-474

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. Published

    Spontaneous Low Frequency Oscillations in Acute Ischemic Stroke – A Near Infrared Spectroscopy (NIRS) Study

    Phillip, D., Schytz, H. W., Iversen, Helle Klingenberg, Selb, J., Boas, D. A. & dlt446, dlt446, 2014, In: Journal of Neurology & Neurophysiology. 5, 6, p. 1-5 5 p., 1000241.

    Research output: Contribution to journalJournal articleResearchpeer-review

  38. 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 journalJournal articleResearchpeer-review

  39. Published

    Small arteries can be accurately studied in vivo, using high frequency ultrasound

    Nielsen, T. H., Iversen, Helle Klingenberg, Tfelt-Hansen, P. & Olesen, Jes, 1993, In: Ultrasound in Medicine & Biology. 19, 9, p. 717-25 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  40. Published

    Sleep-disordered breathing and cerebral small vessel disease—acute and 6 months after ischemic stroke

    Simonsen, S. A., Andersen, A. V., West, A. S., Wolfram, F., Jennum, Poul & Iversen, Helle Klingenberg, 2022, In: Sleep and Breathing. 26, p. 1107–1113

    Research output: Contribution to journalJournal articleResearchpeer-review

  41. Published

    Sleep apnea diagnosis varies with the hypopnea criteria applied

    Ponsaing, L. B., Iversen, Helle Klingenberg & Jennum, Poul, Mar 2016, In: Sleep and Breathing. 20, 1, p. 219-26 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  42. Published

    SiPP (Stroke in Pregnancy and Postpartum): A prospective, observational, international, multicentre study on pathophysiological mechanisms, clinical profile, management and outcome of cerebrovascular diseases in pregnant and postpartum women

    Lorenzano, S., Kremer, C., Pavlovic, A., Jovanovic, D. R., Sandset, E. C., Christensen, H., Bushnell, C., Arsovska, A., Sprigg, N., Roffe, C., Ijäs, P., Gdovinova, Z., Alexandrov, A., Zedde, M., Tassi, R., Acciaresi, M., Lantz, M., Sunnerhagen, K., Zarkov, M., Rantanen, K. & 15 others, Perren, F., Iversen, Helle Klingenberg, Kruuse, Christina Rostrup, Slowik, A., Palazzo, P., Korv, J., Fromm, A., Lovrencic-Huzjan, A., Korompoki, E., Fonseca, A. C., Gall, S. L., Brunner, F., Caso, V., Sacco, S. & for the SiPP Trial Investigators and ESO-WISE Group, F. T. S. T. I. A. E. G., 2020, In: European Stroke Journal. 5, 2, p. 193-203 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  43. 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 journalJournal articleResearchpeer-review

  44. Published

    Self-Reported Physical Activity and Cardiovascular Disease Risk Factors in Patients with Lacunar Stroke

    Krawcyk, R. S., Vinther, A., Petersen, Nicolas Caesar, Faber, Jens, Rehman, S., Iversen, Helle Klingenberg, Christensen, T. & Kruuse, Christina Rostrup, 2019, In: Journal of Stroke & Cerebrovascular Diseases. 28, 8, p. 2168-2176 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  45. Published

    Screening with doppler ultrasound for carotid artery stenosis in patients with stroke or transient ischaemic attack

    Kristensen, T., Hovind, P., Iversen, Helle Klingenberg & Andersen, U. B., 2018, In: Clinical Physiology and Functional Imaging. 38, 4, p. 617-621 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  46. 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 journalJournal articleResearchpeer-review

  47. 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 journalJournal articleResearchpeer-review

  48. 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 journalJournal articleResearchpeer-review

  49. Published

    Risk factors for ischaemic and intracerebral haemorrhagic stroke in 22 countries (the INTERSTROKE study): a case-control study

    O'Donnell, M. J., Xavier, D., Liu, L., Zhang, H., Chin, S. L., Rao-Melacini, P., Rangarajan, S., Islam, S., Pais, P., McQueen, M. J., Mondo, C., Damasceno, A., Lopez-Jaramillo, P., Hankey, G. J., Dans, A. L., Yusoff, K., Truelsen, T., Diener, H-C., Sacco, R. L., Ryglewicz, D. & 6 others, Czlonkowska, A., Weimar, C., Wang, X., Yusuf, S., INTERSTROKE investigators, I. I. & Iversen, Helle Klingenberg, 10 Jul 2010, In: Lancet. 376, 9735, p. 112-23 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  50. Published

    Review on motor imagery based BCI systems for upper limb post-stroke neurorehabilitation: From designing to application

    Khan, M. A., Das, R., Iversen, Helle Klingenberg & Puthusserypady, S., 2020, In: Computers in Biology and Medicine. 123, 103843.

    Research output: Contribution to journalReviewResearchpeer-review

  51. 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

  52. 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

  53. 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

  54. 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

  55. 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

  56. 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

  57. 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

  58. 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

  59. 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

  60. 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

  61. 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

  62. 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

  63. 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

  64. 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

  65. 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

  66. 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

  67. 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

  68. 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

  69. 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

  70. 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

  71. 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

  72. 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

  73. 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

  74. 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

  75. 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

  76. 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

  77. 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

  78. 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

  79. 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

  80. 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

  81. 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

  82. 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

  83. 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

  84. 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

  85. 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

  86. 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

  87. 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

  88. 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

  89. 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

  90. 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

  91. 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

  92. 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

  93. 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

  94. 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

  95. 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

  96. 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

  97. 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

  98. 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

  99. 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

  100. 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

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