Claus Ziegler Simonsen

  1. 2019
  2. Published

    Association of General Anesthesia vs Procedural Sedation With Functional Outcome Among Patients With Acute Ischemic Stroke Undergoing Thrombectomy : A Systematic Review and Meta-analysis. / Schönenberger, Silvia; Hendén, Pia Löwhagen; Simonsen, Claus Z; Uhlmann, Lorenz; Klose, Christina; Pfaff, Johannes A R; Yoo, Albert J; Sørensen, Leif H; Ringleb, Peter A; Wick, Wolfgang; Kieser, Meinhard; Möhlenbruch, Markus A; Rasmussen, Mads; Rentzos, Alexandros; Bösel, Julian.

    In: JAMA: The Journal of the American Medical Association, Vol. 322, No. 13, 01.10.2019, p. 1283-1293.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  3. E-pub ahead of print

    Physiologic predictors of collateral circulation and infarct growth during anesthesia - Detailed analyses of the GOLIATH trial. / Raychev, Radoslav; Liebeskind, David S; Yoo, Albert J; Rasmussen, Mads; Arnaudov, Dimiter; Brown, Scott; Saver, Jeffrey; Simonsen, Claus Z.

    In: Journal of Cerebral Blood Flow and Metabolism, 01.08.2019.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  4. Published

    Ischemic lesions in all territories as a marker of malignant hypercoagulability. / Simonsen, Claus Z.; Roth, Eske; Leslie-Mazwi, Thabele M.

    In: Clinical Case Reports, Vol. 7, No. 7, 07.2019, p. 1312-1315.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  5. E-pub ahead of print

    Anesthesia practice for endovascular therapy of acute ischemic stroke in Europe. / Rasmussen, Line K; Simonsen, Claus Z; Rasmussen, Mads.

    In: Current Opinion in Anaesthesiology, 30.04.2019.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  6. E-pub ahead of print

    Functional Outcome of Intravenous Thrombolysis in Patients With Lacunar Infarcts in the WAKE-UP Trial. / WAKE-UP investigators.

    In: JAMA Neurology, 25.03.2019.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  7. Published

    Endovascular therapy after acute ischaemic stroke-Experiences and needs of relatives. / Sørensen, Kristina Eiskjaer; Dreyer, Pia; Rasmussen, Mads; Simonsen, Claus Ziegler; Andersen, Grethe.

    In: Journal of Clinical Nursing, Vol. 28, No. 5-6, 03.2019, p. 792-800.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  8. E-pub ahead of print

    Safety and quality of endovascular therapy under general anesthesia and conscious sedation are comparable : Results from the GOLIATH trial. / Sørensen, Leif H.; Speiser, Lasse; Karabegovic, Sanja; Yoo, Albert J.; Rasmussen, Mads; Sørensen, Kristina E.; Simonsen, Claus Z.

    In: Journal of NeuroInterventional Surgery, 01.01.2019.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  9. Published

    A randomized controlled trial to test efficacy and safety of thrombectomy in stroke with extended lesion and extended time window. / Bendszus, Martin; Bonekamp, Susanne; Berge, Eivind; Boutitie, Florent; Brouwer, Patrick; Gizewski, Elke; Krajina, Antonin; Pierot, Laurent; Randall, Gary; Simonsen, Claus Ziegler; Zeleňák, Kamil; Fiehler, Jens; Thomalla, Götz.

    In: International Journal of Stroke, Vol. 14, No. 1, 01.2019, p. 87-93.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  10. Published

    Penumbral imaging and functional outcome in patients with anterior circulation ischaemic stroke treated with endovascular thrombectomy versus medical therapy: a meta-analysis of individual patient-level data. / Andersen, Grethe (Member of author collaboration); Damgaard, Dorthe (Member of author collaboration); Weitzel, Paul von (Member of author collaboration); Simonsen, Claus Ziegler (Member of author collaboration); Hjort, Niels (Member of author collaboration); Harbo, Thomas (Member of author collaboration); HERMES collaborators.

    In: Lancet Neurology, Vol. 18, No. 1, 01.2019, p. 46-55.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  11. Published

    Acute endovascular reperfusion treatment in patients with ischaemic stroke and large-vessel occlusion (Denmark 2011–2017). / Truelsen, Thomas; Hansen, Klaus; Andersen, Grethe; Sørensen, Leif; Madsen, Charlotte; Diaz, Anabel; Stavngaard, Trine; Hundborg, Heidi H; Højgaard, Joan; Hjort, Niels; Iversen, Helle K; Johnsen, Søren P; Simonsen, Claus Z.

    In: European Journal of Neurology, Vol. 26, No. 8, 2019, p. 1044-1050.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  12. 2018
  13. Published

    Transit time homogenization in ischemic stroke - A novel biomarker of penumbral microvascular failure? / Engedal, Thorbjørn S; Hjort, Niels; Hougaard, Kristina D; Simonsen, Claus Z; Andersen, Grethe; Mikkelsen, Irene Klærke; Boldsen, Jens K; Eskildsen, Simon F; Hansen, Mikkel B; Angleys, Hugo; Jespersen, Sune N; Pedraza, Salvador; Cho, Tae-Hee; Serena, Joaquín; Siemonsen, Susanne; Thomalla, Götz; Nighoghossian, Norbert; Fiehler, Jens; Mouridsen, Kim; Østergaard, Leif.

    In: Journal of Cerebral Blood Flow and Metabolism, 01.11.2018, p. 271678X17721666.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  14. Published

    Imaging features and safety and efficacy of endovascular stroke treatment: a meta-analysis of individual patient-level data. / Andersen, Grethe (Member of author collaboration); Weitzel, Paul von (Member of author collaboration); Damgaard, Dorthe (Member of author collaboration); Simonsen, Claus Ziegler (Member of author collaboration); Hjort, Niels (Member of author collaboration); Harbo, Thomas (Member of author collaboration); HERMES collaborators.

    In: Lancet Neurology, Vol. 17, No. 10, 10.2018, p. 895-904.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  15. Published

    Additional Factors Regarding Clinical Outcomes of General Anesthesia and Conscious Sedation for Acute Ischemic Stroke-Reply. / Simonsen, Claus Z; Yoo, Albert J; Rasmussen, Mads.

    In: JAMA Neurology, Vol. 75, No. 9, 01.09.2018, p. 1152-1153.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperComment/debateResearch

  16. Published

    Cerebral vaskulitis hos en patient med neuroborreliose. / Nahimi, Adjmal; Simonsen, Claus Ziegler; Jeppesen, Lise Leth; Speiser, Lasse.

    In: Ugeskrift for Laeger, Vol. 180, V02180124 , 27.08.2018.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  17. Published

    MRI-Guided Thrombolysis for Stroke with Unknown Time of Onset. / Simonsen, Claus Ziegler; Andersen, Grethe; Modrau, Boris; WAKE-UP investigators.

    In: The New England Journal of Medicine, Vol. 379, No. 7, 16.08.2018, p. 611-622.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  18. Published

    Effects of centralizing acute stroke services: A prospective cohort study. / Hastrup, Sidsel; Johnsen, Søren Paaske; Terkelsen, Thorkild; Hundborg, Heidi Holmager; von Weitzel-Mudersbach, Paul; Simonsen, Claus Ziegler; Hjort, Niels; Møller, Anette Torvin; Harbo, Thomas; Poulsen, Marika S; Ruiz de Morales Ayudarte, Noella; Damgaard, Dorte Winther; Andersen, Grethe.

    In: Neurology, Vol. 91, No. 3, 17.07.2018, p. e235-e248.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  19. Published

    The influence of blood pressure management on neurological outcome in endovascular therapy for acute ischaemic stroke. / Rasmussen, M.; Espelund, U. S.; Juul, N.; Yoo, A. J.; Sørensen, L. H.; Sørensen, K. E.; Johnsen, S. P.; Andersen, G.; Simonsen, C. Z.

    In: British Journal of Anaesthesia, Vol. 120, No. 6, 01.06.2018, p. 1287-1294.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  20. Published

    Magnetic Resonance Imaging Selection for Endovascular Stroke Therapy - Workflow in the GOLIATH Trial. / Simonsen, Claus Ziegler; Yoo, Albert J; Rasmussen, Mads; Sørensen, Kristina E; Leslie-Mazwi, Thabele; Andersen, Grethe; Sørensen, Leif H.

    In: Stroke, Vol. 49, No. 6, 06.2018, p. 1402-1406.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  21. Published

    Anaesthesia for Endovascular Treatment of Acute Ischemic Stroke: Still Controversial? / Rasmussen, Line Kirkegaard; Simonsen, Claus Ziegler; Hendén, Pia Löwhagen; Bösel, Julian; Rasmussen, Mads.

    In: Current anesthesiology reports, 26.04.2018.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  22. Published

    Effect of General Anesthesia and Conscious Sedation During Endovascular Therapy on Infarct Growth and Clinical Outcomes in Acute Ischemic Stroke: A Randomized Clinical Trial. / Simonsen, Claus Ziegler; Yoo, Albert J; Sørensen, Leif Hougaard; Juul, Niels; Johnsen, Søren Paaske; Andersen, Grethe; Rasmussen, Mads.

    In: JAMA Neurology, Vol. 75, No. 4, 04.2018, p. 470-477.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  23. Published

    Future trials on endovascular stroke treatment: the not-so-easy-to-pluck fruits. / Goyal, Mayank; Simonsen, Claus Ziegler; Fisher, Marc.

    In: Neuroradiology, Vol. 60, No. 2, 02.2018, p. 123-126.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperEditorialResearch

  24. Published

    Clinical characteristics of unknown symptom onset stroke patients with and without diffusion-weighted imaging and fluid-attenuated inversion recovery mismatch. / Thomalla, Götz; Boutitie, Florent; Fiebach, Jochen B.; Simonsen, Claus Ziegler; Pedraza, Salvador; Lemmens, Robin; Nighoghossian, Norbert; Roy, Pascal; Muir, Keith W; Ebinger, Martin; Ford, Ian; Cheng, Bastian; Galinovic, Ivana; Cho, Tae-Hee; Puig, Josep; Thijs, Vincent; Endres, Matthias; Fiehler, Jens; Gerloff, Christian.

    In: International Journal of Stroke, Vol. 13, No. 1, 01.2018, p. 66-73.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  25. Published

    Effect of general anaesthesia on functional outcome in patients with anterior circulation ischaemic stroke having endovascular thrombectomy versus standard care: a meta-analysis of individual patient data. / Andersen, Grethe (Member of author collaboration); Damgaard, Dorte Winther (Member of author collaboration); Weitzel, Paul von (Member of author collaboration); Simonsen, Claus Ziegler (Member of author collaboration); Hjort, Niels (Member of author collaboration); Harbo, Thomas (Member of author collaboration); HERMES collaborators.

    In: Lancet Neurology, Vol. 17, No. 1, 01.2018, p. 47-53.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  26. Published

    Letter by Rasmussen et al Regarding Article, "Anesthesia-Related Outcomes for Endovascular Stroke Revascularization: A Systematic Review and Meta-Analysis". / Rasmussen, Mads; Simonsen, Claus Z; Sharma, Deepak.

    In: Stroke, Vol. 49, No. 1, 01.2018, p. e20.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperLetterResearchpeer-review

  27. 2017
  28. Published

    Anaesthesia practices for endovascular therapy of acute ischaemic stroke : a Nordic survey. / Rasmussen, Mads; Simonsen, C Z; Sørensen, L H; Dyrskog, S; Rusy, D A; Sharma, D.; Juul, N.

    In: Acta Anaesthesiologica Scandinavica, Vol. 61, No. 8, 09.2017, p. 885-894.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  29. Published

    Effect of informed consent on patient characteristics in a stroke thrombolysis trial. / Thomalla, Götz; Boutitie, Florent; Fiebach, Jochen B; Simonsen, Claus Z; Nighoghossian, Norbert; Pedraza, Salvador; Lemmens, Robin; Roy, Pascal; Muir, Keith W; Heesen, Christoph; Ebinger, Martin; Ford, Ian; Cheng, Bastian; Cho, Tae-Hee; Puig, Josep; Thijs, Vincent; Endres, Matthias; Fiehler, Jens; Gerloff, Christian.

    In: Neurology, Vol. 89, No. 13, 09.2017, p. 1400-1407.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  30. Published

    Diffusion and Perfusion MR Imaging in Acute Stroke: Clinical Utility and Potential Limitations for Treatment Selection. / Bateman, Mathew; Slater, Lee-Anne; Leslie-Mazwi, Thabele M; Simonsen, Claus Ziegler; Stuckey, Stephen; Chandra, Ronil V.

    In: Topics in Magnetic Resonance Imaging, Vol. 26, No. 2, 04.2017, p. 77-82.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  31. Published

    Stroke With Unknown Time of Symptom Onset: Baseline Clinical and Magnetic Resonance Imaging Data of the First Thousand Patients in WAKE-UP. / Thomalla, Götz; Boutitie, Florent; Fiebach, Jochen B; Simonsen, Claus Ziegler; Nighoghossian, Norbert; Pedraza, Salvador; Lemmens, Robin; Roy, Pascal; Muir, Keith W; Ebinger, Martin; Ford, Ian; Cheng, Bastian; Galinovic, Ivana; Cho, Tae-Hee; Puig, Josep; Thijs, Vincent; Endres, Matthias; Fiehler, Jens; Gerloff, Christian.

    In: Stroke, Vol. 48, No. 3, 03.2017, p. 770-773.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  32. Published

    Ischemic stroke subtype is associated with outcome in thrombolyzed patients. / Schmitz, Marie Louise; Simonsen, Claus Ziegler; Svendsen, M L; Larsson, Heidi Jeanet; Hjørringgaard Madsen, Mette; Mikkelsen, I K; Fisher, M; Johnsen, Søren Paaske; Andersen, Grethe.

    In: Acta Neurologica Scandinavica. Supplementum, Vol. 135, No. 2, 02.2017, p. 176-182.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  33. Published

    Predictors of Infarct Growth in Patients with Large Vessel Occlusion Treated with Endovascular Therapy. / Simonsen, Claus Ziegler; Mikkelsen, Irene Klærke; Karabegovic, Sanja; Kristensen, Pia Kjær; Yoo, Albert J; Andersen, Grethe.

    In: Frontiers in Neurology, Vol. 8, 2017, p. 574.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  34. 2016
  35. Published

    Anesthetic strategy during endovascular therapy: General anesthesia or conscious sedation? (GOLIATH - General or Local Anesthesia in Intra Arterial Therapy) A single-center randomized trial. / Simonsen, Claus Z; Sørensen, Leif H; Juul, Niels; Johnsen, Søren P; Yoo, Albert J; Andersen, Grethe; Rasmussen, Mads.

    In: International Journal of Stroke, Vol. 11, No. 9, 12.2016, p. 1045-1052.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  36. Published

    Early neurological deterioration after thrombolysis: Clinical and imaging predictors. / Simonsen, Claus Z; Schmitz, Marie Louise; Hjørringgaard Madsen, Mette; Mikkelsen, Irene K; Chandra, Ronil V; Leslie-Mazwi, Thabele M; Andersen, Grethe.

    In: International Journal of Stroke, Vol. 11, No. 7, 10.2016, p. 776-782.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  37. Published

    Letter by Hastrup et al Regarding Article, "Clinical Scales Do Not Reliably Identify Acute Ischemic Stroke Patients With Large-Artery Occlusion". / Hastrup, Sidsel; Andersen, Grethe; Simonsen, Claus Z.

    In: Stroke, Vol. 47, No. 9, 09.2016, p. E229.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperComment/debateResearch

  38. Published

    Bypassing primary stroke centre reduces delay and improves outcomes for patients with large vessel occlusion. / Mohamad, Niwar Faisal; Hastrup, Sidsel; Rasmussen, Mads; Andersen, Mikkel Strømgaard; Johnsen, Søren Paaske; Andersen, Grethe; Simonsen, Claus Ziegler.

    In: European Stroke Journal, Vol. 1, No. 2, 01.06.2016, p. 85-92.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  39. Published

    ADAPT FAST Study: third-generation stroke thrombectomy devices place renewed focus on the elusive relationship between revascularization and good outcomes. / Mehta, Brijesh P; Leslie-Mazwi, Thabele M; Simonsen, Claus Z; Rabinov, James D; Hirsch, Joshua A; Gupta, Rishi; Yoo, Albert J.

    In: Journal of NeuroInterventional Surgery, Vol. 8, No. e1, 06.2016, p. e21-e23.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperComment/debateResearch

  40. Published

    The Evolution of Mechanical Thrombectomy for Acute Stroke. / Akbik, Feras; Hirsch, Joshua A; Cougo-Pinto, Pedro Telles; Chandra, Ronil V; Simonsen, Claus Z; Leslie-Mazwi, Thabele.

    In: Current treatment options in cardiovascular medicine, Vol. 18, No. 5, 2016, p. 32.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperComment/debateResearch

  41. 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, Thorkild; Schmitz, Marie Louise; Simonsen, Claus Ziegler; Hundborg, Heidi Holmager; Christensen, Hanne; Gyllenborg, Jesper; Sandal, Birgitte Forsum; Iversen, Helle Klingenberg; Madsen, Charlotte; Rasmussen, Mary-Jette; Vestergård, Karsten; Andersen, Grethe; Johnsen, Søren Paaske.

    In: International Journal of Stroke, Vol. 11, No. 8, 2016, p. 910-916.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  42. 2015
  43. Published

    Sensitivity of diffusion-and perfusion-weighted imaging for diagnosing acute ischemic stroke is 97.5%. / Simonsen, Claus Z.; Madsen, Mette H.; Schmitz, Marie L.; Mikkelsen, Irene K.; Fisher, Marc; Andersen, Grethe.

    In: Stroke, Vol. 46, No. 1, 01.2015, p. 98-101.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  44. Published

    Endovascular Treatment of Basilar Artery Thrombosis Secondary to Bilateral Vertebral Artery Dissection with Symptom Onset Following Cervical Spine Manipulation Therapy. / Mikkelsen, Ronni; Dalby, Rikke Beese; Hjort, Niels; Simonsen, Claus Ziegler; Karabegovic, Sanja.

    In: American Journal of Case Reports, Vol. 16, 2015, p. 868-71.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  45. Published

    Intra-arterial therapy for acute ischemic stroke: a golden age. / Cougo-Pinto, Pedro Telles; Chandra, Ronil V; Simonsen, Claus Z; Hirsch, Joshua A; Leslie-Mazwi, Thabele.

    In: Current Treatment Options in Neurology, Vol. 17, No. 7, 360, 2015.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperReviewResearchpeer-review

  46. Published

    Treatment with Intravenous Thrombolysis in Acute Ischemic Stroke is Associated with Reduced Bed Day Use: A Nationwide Propensity Score Matched Follow-Up Study. / Terkelsen, Thorkild; Schmitz, Marie Louise; Simonsen, Claus Ziegler; Hundborg, Heidi Holmager; Christensen, Hanne; Ellemann, Karsten; Geisler, Karin; Iversen, Helle Klingenberg; Madsen, Charlotte; Rasmussen, Mary-Jette; Vestergård, Karsten; Andersen, Grethe; Johnsen, Søren Paaske.

    In: Stroke, 2015.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperConference abstract in journalResearchpeer-review

  47. 2014
  48. Published

    A multicenter, randomized, double-blind, placebo-controlled trial to test efficacy and safety of magnetic resonance imaging-based thrombolysis in wake-up stroke (WAKE-UP). / Thomalla, Götz; Fiebach, Jochen B; Østergaard, Leif; Pedraza, Salvador; Thijs, Vincent; Nighoghossian, Norbert; Roy, Pascal; Muir, Keith W; Ebinger, Martin; Cheng, Bastian; Galinovic, Ivana; Cho, Tae-Hee; Puig, Josep; Boutitie, Florent; Simonsen, Claus Z; Endres, Matthias; Fiehler, Jens; Gerloff, Christian; WAKE-UP investigators.

    In: International Journal of Stroke, Vol. 9, No. 6, 08.2014, p. 829-36.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  49. Published
  50. Published

    Letter by simonsen et Al regarding article, "balloon guide catheter improves revascularization and clinical outcomes with the solitaire device: analysis of the north american solitaire acute stroke registry". / Simonsen, Claus Z; Sørensen, Leif H; Andersen, Grethe.

    In: Stroke; a journal of cerebral circulation, Vol. 45, No. 5, 05.2014, p. e85.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperComment/debateResearch

  51. Published

    Dabigatran-related Intracerebral Hemorrhage Resulting in Hematoma Expansion. / Simonsen, Claus Z; Steiner, Thorsten; Tietze, Anna; Damgaard, Dorte Winther.

    In: Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association, Vol. 23, No. 2, 02.2014, p. e133-4.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  52. Published

    Remote Ischemic Perconditioning as an Adjunct Therapy to Thrombolysis in Patients With Acute Ischemic Stroke : A Randomized Trial. / Hougaard, Kristina Dupont; Hjort, Niels; Zeidler, Dora; Sørensen, Leif; Nørgaard, Anne; Hansen, Troels Martin; Weitzel, Paul von; Simonsen, Claus Z; Damgaard, Dorte Winther; Gottrup, Hanne; Svendsen, Kristina; Rasmussen, Peter Vestergaard; Ribe, Lars R; Mikkelsen, Irene K; Nagenthiraja, Kartheeban; Cho, Tae-Hee; Redington, Andrew N; Bøtker, Hans Erik; Østergaard, Leif; Mouridsen, Kim; Andersen, Grethe.

    In: Stroke; a journal of cerebral circulation, Vol. 45, No. 1, 03.01.2014, p. 159-67.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  53. Published

    Acute Ischemic Stroke and Long-Term Outcome After Thrombolysis: Nationwide Propensity Score-Matched Follow-Up Study. / Schmitz, Marie Louise; Simonsen, Claus Z; Hundborg, Heidi; Christensen, Hanne; Ellemann, Karsten; Geisler, Karin; Iversen, Helle; Madsen, Charlotte; Rasmussen, Mary-Jette; Vestergaard, Karsten; Andersen, Grethe; Johnsen, Soeren P.

    In: Stroke; a journal of cerebral circulation, Vol. 45, No. 10, 2014, p. 3070-3072.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  54. Published

    Clinical Outcome after Intra-Arterial Stroke Therapy in the Very Elderly: Why is it so Heterogeneous? / Chandra, Ronil V; Leslie-Mazwi, Thabele M; Mehta, Brijesh P; Yoo, Albert J; Simonsen, Claus Z.

    In: Frontiers in Neurology, Vol. 5, 2014, p. 60.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperReviewResearchpeer-review

  55. Published

    MRI before intraarterial therapy in ischemic stroke : feasibility, impact, and safety. / Simonsen, Claus Z; Sørensen, Leif H; Karabegovic, Sanja; Mikkelsen, Irene K; Schmitz, Marie L; Juul, Niels; Yoo, Albert J; Andersen, Grethe.

    In: Journal of Cerebral Blood Flow and Metabolism, Vol. 34, No. 6, 2014, p. 1076-1081.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  56. 2013
  57. Published

    Elderly patients and intra-arterial stroke therapy. / Leslie-Mazwi, Thabele M; Chandra, Ronil V; Simonsen, Claus Z; Yoo, Albert J.

    In: Expert Review of Cardiovascular Therapy, Vol. 11, No. 12, 12.2013, p. 1713-23.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  58. Published

    Svar: Ingen grund til bekymring. / Andersen, Grethe; Simonsen, Claus Ziegler; Sørensen, Leif Hougaard; Juul, Niels.

    In: Ugeskrift for Laeger, Vol. 175, No. 37, 09.09.2013, p. 2136-7.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperComment/debateResearch

  59. Published

    Refining angiographic biomarkers of revascularization: Improving outcome prediction after intra-arterial therapy. / Yoo, Albert J; Simonsen, Claus Z; Prabhakaran, Shyam; Chaudhry, Zeshan A; Issa, Mohammad A; Fugate, Jennifer E; Linfante, Italo; Liebeskind, David S; Khatri, Pooja; Jovin, Tudor G; Kallmes, David F; Dabus, Guilherme; Zaidat, Osama O; Cerebral Angiographic Revascularization Grading Collaborators.

    In: Stroke; a journal of cerebral circulation, Vol. 44, No. 9, 09.2013, p. 2509-12.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  60. Published

    Endovaskulær behandling af cerebral trombe ved samtidig behandling med dabigatran. / Schmitz, Marie Louise; Andersen, Grethe; Fink-Jensen, Vibeke; Simonsen, Claus Z; Damgaard, Dorte Winther.

    In: Ugeskrift for Laeger, Vol. 175, No. 23, 03.06.2013, p. 1650-1.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  61. Published

    The role of the cerebral capillaries in acute ischemic stroke: the extended penumbra model. / Østergaard, Leif; Jespersen, Sune Nørhøj; Mouridsen, Kim; Mikkelsen, Irene Klærke; Jónsdóttir, Kristjana Ýr; Tietze, Anna; Blicher, Jakob; Aamand, Rasmus; Hjort, Niels; Iversen, Nina Kerting; Cai, Changsi; Hougaard, Kristina Dupont; Simonsen, Claus Ziegler; Weitzel-Mudersbach, Paul von; Modrau, Boris; Nagenthiraja, Kartheeban; Ribe, Lars Riisgaard; Hansen, Mikkel Bo; Bekke, Susanne Lise; Dahlmann, Martin Gervais; Puig, Josep; Pedraza, Salvador; Serena, Joaquín; Cho, Tae-Hee; Siemonsen, Susanne; Thomalla, Götz; Fiehler, Jens; Nighoghossian, Norbert; Andersen, Grethe.

    In: Journal of Cerebral Blood Flow and Metabolism, Vol. 33, No. 5, 27.02.2013, p. 635.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  62. Published

    Hypertensive microbleed as a transient ischemic attack mimic. / Simonsen, Claus Z; Nielsen, Edith.

    In: Case Reports in Neurology, Vol. 5, No. 1, 01.2013, p. 31-3.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  63. Published

    Selection of patients for intra-arterial therapy. / Simonsen, Claus Z; Andersen, Grethe; González, R Gilberto; Yoo, Albert J.

    In: Lancet Neurology, Vol. 12, No. 3, 2013, p. 225.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperLetterResearch

  64. Published

    Stentriver increases recanalization rate but not good outcome after large vessel stroke. / Simonsen, Claus Ziegler; Sørensen, Leif Hougaard; Karabecovic, Sanja; Juul, Niels; Andersen, Grethe.

    2013. Abstract from International Stroke Conference, Honolulu, United States.

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

  65. 2012
  66. Published

    Antiplatelet therapy in ischemic stroke: does one size fit all? / Simonsen, Claus Z; Yoo, Albert J.

    In: Expert Review of Cardiovascular Therapy, Vol. 10, No. 12, 2012, p. 1455-7.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperEditorialResearchpeer-review

  67. Published

    Børn og Unge. / Østergaard, John Rosendahl; Simonsen, Claus Ziegler.

    Apopleksi - sygdom, behandling og organisation. Munksgaard , 2012. p. 151-159.

    Research output: Contribution to book/anthology/report/proceedingBook chapterResearchpeer-review

  68. Published

    Endovascular treatment of acute ischemic stroke: current indications. / Yoo, Albert J; Chaudhry, Zeshan A; Leslie-Mazwi, Thabele M; Chandra, Ronil V; Hirsch, Joshua A; González, Ramon Gilberto; Simonsen, Claus Z.

    In: Techniques in Vascular and Interventional Radiology, Vol. 15, No. 1, 2012, p. 33-40.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperReviewResearchpeer-review

  69. Published

    NIHSS as outcome measure in patients undergoing thrombectomy. / Simonsen, Claus Ziegler; Sørensen, Leif Hougaard; Karabecovic, Sanja; Juul, Niels; Weitzel, Paul von; Damgaard, Dorte Winther; Andersen, Grethe.

    2012. Poster session presented at International stroke conference, New Orleans, United States.

    Research output: Contribution to conferencePosterResearchpeer-review

  70. Published

    Superficiel siderose i centralnervesystemet behandlet med prednisolon. / Behrndtz, Anne; Andersen, Grethe; Simonsen, Claus Z.

    In: Ugeskrift for Laeger, Vol. 174, No. 38, 2012, p. 2237-8.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  71. 2011
  72. Published

    Endovaskulær behandling ved akut iskæmisk apopleksi. / Simonsen, Claus Z; Sørensen, Leif Hovgaard; Andersen, Grethe.

    In: Ugeskrift for Laeger, Vol. 173, No. 10, 2011, p. 729.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperLetterResearchpeer-review

  73. 2002
  74. Published

    Final infarct size after acute stroke : prediction with flow heterogeneity. / Simonsen, Claus Z; Røhl, Lisbeth; Vestergaard-Poulsen, Peter; Gyldensted, Carsten; Andersen, Grethe; Østergaard, Leif.

    In: Radiology, Vol. 225, No. 1, 2002, p. 269-75.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  75. Published

    Perfusion Imaging with Magnetic Resonance in Acute Ischemic Stroke. / Simonsen, Claus Ziegler.

    Faculty of Health Sciences. University of Aarhus, 2002. 38 p.

    Research output: Book/anthology/dissertation/reportPh.D. thesisResearch

  76. Published

    Time evolution of cerebral perfusion and apparent diffusion coefficient measured by magnetic resonance imaging in a porcine stroke model. / Røhl, Lisbeth; Sakoh, Masaharuh; Simonsen, Claus Ziegler; Vestergaard-Poulsen, Peter; Sangill, Ryan; Sørensen, Jens Christian H.; Bjarkam, Carsten; Gyldensted, Carsten; Østergaard, Leif.

    In: Journal of Magnetic Resonance Imaging, Vol. 15, No. 2, 2002, p. 123-9.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  77. 2001
  78. Published

    Correlation between diffusion- and perfusion-weighted MRI and neurological deficit measured by the Scandinavian Stroke Scale and Barthel Index in hyperacute subcortical stroke (< or = 6 hours). / Røhl, Lisbeth; Geday, Jacob; Østergaard, Leif; Simonsen, Claus Ziegler; Vestergaard-Poulsen, Peter; Andersen, Grethe; Le Bihan, D.; Gyldensted, C.

    In: Cerebrovascular Diseases, Vol. 12, No. 3, 2001, p. 203-213.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  79. Published

    MR-scanning ved akut apopleksi. / Simonsen, Claus Ziegler; Røhl, L; Østergaard, L; Vestergaard-Poulsen, P; Andersen, Grethe; Gyldensted, C.

    In: Ugeskrift for Laeger, Vol. 163, No. 17, 2001, p. 2368-72.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  80. Published

    MR-skanning ved akut apopleksi. / Simonsen, Claus Ziegler; Røhl, Lisbeth; Vestergaard-Poulsen, Peter; Andersen, Grethe; LeBihan, D.; Gyldensted, Carsten.

    In: Ugeskrift for Laeger, No. 163, 2001, p. 2368-2372.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  81. Published

    Viability thresholds of ischemic penumbra of hyperacute stroke defined by perfusion-weighted MRI and apparent diffusion coefficient. / Røhl, Lisbeth; Østergaard, Leif; Simonsen, Claus Ziegler; Vestergaard-Poulsen, Peter; Andersen, Grethe; Sakoh, M.; Le Bihan, D.; Gyldensted, Carsten.

    In: Stroke, Vol. 32, 2001, p. 1140-1146.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  82. 2000
  83. Published

    Comparison of gradient- and spin-echo imaging: CBF, CBV, and MTT measurements by bolus tracking. / Simonsen, Claus Ziegler; Østergaard, Leif; Smith, D F; Vestergaard-Poulsen, P; Gyldensted, C.

    In: Journal of Magnetic Resonance Imaging, Vol. 12, No. 3, 2000, p. 411-6.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  84. Published

    Orientated sectioning of irregular tissue blocks in relation to computerized scanning modalities : Results from the domestic pig brain. / Sørensen, Jens Christian Hedemann; Bjarkam, Carsten Reidies; Danielsen, Erik Hvid; Simonsen, Claus Ziegler; Geneser, F.A.

    In: J. Neurosci. Methods, Vol. 104, 2000, p. 93-98.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  85. Published

    Relationship between residual cerebral blood flow and oxygen metabolism as predictive of ischemic tissue viability: sequential multitracer positron emission tomography scanning of middle cerebral artery occlusion during the critical first 6 hours after stroke in pigs. / Sakoh, M; Østergaard, Leif; Røhl, L; Smith, D F; Simonsen, Claus Ziegler; Sørensen, Jens Christian H.; Vestergaard-Poulsen, Peter; Gyldensted, C; Sakaki, S; Gjedde, A.

    In: Journal of Neurosurgery, Vol. 93, No. 4, 2000, p. 647-57.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  86. Published

    The DaNeX Study of Embryonic Mesencephalic Dopaminergic Tissue Grafted to a Minipig model of Parkinson's disease : Preliminary Findings of Effect of MPTP-Poisoning on Striatal Dopaminergic Markers. / Danielsen, Erik Hvid; Cumming, Paul; Andersen, Flemming; Bender, Dirk; Brevig, T.; Falborg, Lise; Gee, A.; Gillings, N.M.; Hansen, S.B.; Hermansen, F.; Johansen, J.; Johansen, T.E.; Dahl-Jørgensen, A.; Jørgensen, H.A.; Meyer, M.; Munk, Ole Lajord; Pedersen, E.B.; Poulsen, P.H.; Rodell, A.B.; Sakoh, M.; Simonsen, Claus Ziegler; Smith, Donald F.; Sørensen, J.C.; Østergaard, Leif; Zimmer, J.; Gjedde, Albert; Møller, Arne.

    In: Cell Transplantation, Vol. 9, No. 2, 2000, p. 247-259.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  87. Published

    Viability Thresholds of the Penumbra of Acute Human Ischemic Stroke Defined from rCBF and rCBV. / Røhl, Lisbeth; Østergaard, Leif; Simonsen, Claus Ziegler; Vestergaard-Poulsen, Peter; Andersen, Grethe; Le Bihan, D.; Gyldensted, Carsten.

    In: Proc ISMRM, 2000, p. 452-452.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  88. 1999
  89. Published

    CBF and CBV measurements by USPIO bolus tracking: reproducibility and comparison with Gd-based values. / Simonsen, Claus Ziegler; Østergaard, Leif; Vestergaard-Poulsen, P; Røhl, L; Bjørnerud, A; Gyldensted, C.

    In: Journal of Magnetic Resonance Imaging, Vol. 9, No. 2, 1999, p. 342-7.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  90. Published

    NC100150-enhanced 3D-SPGR MR angiography of the common carotid artery in a pig vascular stenosis model : Quantification of stenosis and dose optimization. / Røhl, L; Østergaard, Leif; Simonsen, Claus Ziegler; Vestergaard-Poulsen, P; Sørensen, L; Bjørnerud, A; Saebø, K B; Gyldensted, C.

    In: Acta Radiologica, Vol. 40, No. 3, 1999, p. 282-90.

    Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review