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  • 1. Forsell, Å.
    et al.
    Larsson, Christer
    Rönnberg, Jerker
    Linköping University, Faculty of Arts and Sciences. Linköping University, Department of Behavioural Sciences, The Swedish Institute for Disability Research.
    Fodstad, H.
    CT assessment of subarachnoid hemorrhage. A comparison between different CT methods of grading subarachnoid hemorrhage.1995In: British Journal of Neurosurgery, ISSN 0268-8697, E-ISSN 1360-046X, Vol. 9, p. 21-27Article in journal (Refereed)
  • 2.
    Hillman, Jan
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Neurosurgery. Östergötlands Läns Landsting, Reconstruction Centre, Department of Neurosurgery UHL.
    Sturnegk, Patrik
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Neurosurgery. Östergötlands Läns Landsting, Reconstruction Centre, Department of Neurosurgery UHL.
    Yonas, H
    Heron, J
    Sandborg, Michael
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Radiation Physics. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Radiation Physics.
    Gunnarsson, Thorsteinn
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Neurosurgery. Östergötlands Läns Landsting, Reconstruction Centre, Department of Neurosurgery UHL.
    Mellergård, Per Erik
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Neurosurgery. Östergötlands Läns Landsting, Reconstruction Centre, Department of Neurosurgery UHL.
    Bedside monitoring of CBF with xenon-CT and a mobile scanner: A novel method in neurointensive care2005In: British Journal of Neurosurgery, ISSN 0268-8697, E-ISSN 1360-046X, Vol. 19, no 5, p. 395-401Article in journal (Refereed)
    Abstract [en]

    Combining previously independently established techniques our objective was to develop and evaluate a method for bedside qualitative assessment of cerebral blood flow in neurointensive care (NICU) patients. The CT-protocol was optimized using phantoms and comparing a mobile CT-scanner (Tomoscan-M, Philips) with two stationary CT scanners. Thirty-two per cent xenon was delivered with standard equipment (Enhancer 3000). Mean cortical flow in volunteers was 48 ml/min/100 g, with the mean vascular territorial flow varying between 45 and 66 ml/min/100 g. The potential clinical usefulness was illustrated in three patients with vasospasm following subarachnoid haemorrhage. Our conclusion is that quantitative bedside measurements of CBF can be repeatedly performed in an easy and safe way in a standard NICU-setting, using xenon-inhalation and a mobile CT-scanner. The method is useful for the decision-making, and is a good example of how the quality of multi-modality monitoring in the NICU can be developed and further diversified. © The Neurosurgical Foundation.

  • 3. Larsson, Christer
    et al.
    Rönnberg, Jerker
    Linköping University, Faculty of Arts and Sciences. Linköping University, Department of Behavioural Sciences, The Swedish Institute for Disability Research.
    Forsell, Å.
    Nilsson, LG
    Lindberg, M
    Ängquist, K-A.
    Verbal memory function after subarachnoid haemorrhage as determined by the localisation of the aneurysm.1989In: British Journal of Neurosurgery, ISSN 0268-8697, E-ISSN 1360-046X, Vol. 3, p. 549-560Article in journal (Refereed)
  • 4.
    Mellergard, Pekka
    et al.
    Östergötlands Läns Landsting, Reconstruction Centre, Department of Neurosurgery UHL.
    Sjögren, Florence
    Linköping University, Department of Clinical and Experimental Medicine, Dermatology and Venerology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Dermatology and Venerology in Östergötland.
    Hillman, Jan
    Linköping University, Department of Clinical and Experimental Medicine, Neurosurgery. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Reconstruction Centre, Department of Neurosurgery UHL.
    Release of VEGF and FGF in the extracellular space following severe subarachnoidal haemorrhage or traumatic head injury in humans2010In: British Journal of Neurosurgery, ISSN 0268-8697, E-ISSN 1360-046X, Vol. 24, no 3, p. 261-267Article in journal (Refereed)
    Abstract [en]

    Microdialysate fluid from 145 severely injured NSICU-patients, 88 with subarachnoidal haemorrage (SAH), and 57 with traumatic brain injury (TBI), was collected by microdialysis during the first 7 days following impact, and levels of the neurotrophins fibroblast growth factor-2 (FGF2) and vascular endothelial growth factor (VEGF) were analysed. The study illustrates both similarities and differences in the reaction patterns of the 2 inflammatory proteins. The highest concentrations of both FGF2 and VEGF were measured on Day 2 (mean (+/- SE) values being 47.1 +/- 15.33 and 116.9 +/- 41.85 pg/ml, respectively, in the pooled patient material). The VEGF concentration was significantly higher in TBI-patients, while the FGF2 showed a tendency to be higher in SAH-patients. This is the first report presenting in some detail the human cerebral response of FGF2 and VEGF following SAH and TBI. Apart from increasing the understanding of the post-impact inflammatory response of the human brain, the study identifies potential threshold values for these chemokines that may serve as monitoring indicators in the NSICU.

  • 5.
    Sturnegk, Patrik
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Neurosurgery. Östergötlands Läns Landsting, Reconstruction Centre, Department of Neurosurgery UHL.
    Mellergård, Pekka
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Neurosurgery. Östergötlands Läns Landsting, Reconstruction Centre, Department of Neurosurgery UHL.
    Yonas, H
    Theodorsson, Annette
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Division of clinical chemistry. Östergötlands Läns Landsting, Reconstruction Centre, Department of Neurosurgery UHL.
    Hillman, Jan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Neurosurgery. Östergötlands Läns Landsting, Reconstruction Centre, Department of Neurosurgery UHL.
    Potential use of quantitative bedside CBF monitoring (Xe-CT) for decision making in neurosurgical intensive care2007In: British Journal of Neurosurgery, ISSN 0268-8697, E-ISSN 1360-046X, Vol. 21, no 4, p. 332-339Article in journal (Refereed)
    Abstract [en]

    During a 3-year period, mobile xenon-computerized tomography (Xe-CT) for bedside quantitative assessment of cerebral blood flow was used as an integrated tool for decision making during the care of complicated patients in our neurosurgical intensive care units (NSICU), in an attempt to make a preliminary evaluation regarding the usefulness of this method in routine work in the neurosurgical intensive care. With approximately 200 studies involving 75 patients, we identified six different categories where the use of bedside Xe-CT significantly influenced (or, with more experience, could have influenced) the decision making, or facilitated the handling of patients. These categories included identification of problems not apparent from other types of monitoring, avoidance of adverse effects from treatment, titration of standard treatments, evaluation of the vascular resistance reserve, assessment of adequate perfusion pressure and better utilization of resources from access to the bedside cerebral blood flow (CBF) technology. We conclude that quantitative bedside measurements of CBF could be an important addition to the diagnostic and monitoring arsenal of NSICU-tools. © The Neurosurgical Foundation.

  • 6.
    Sundström, Nina
    et al.
    Umeå University, Sweden.
    Malm, Jan
    Umeå University, Sweden.
    Laurell, Katarina
    Umeå University, Sweden.
    Lundin, Fredrik
    Linköping University, Department of Clinical and Experimental Medicine, Division of Neuro and Inflammation Science. Region Östergötland, Local Health Care Services in Central Östergötland, Department of Neurology. Linköping University, Faculty of Medicine and Health Sciences.
    Kahlon, Babar
    Lund University Hospital, Sweden.
    Cesarini, Kristina G.
    Uppsala University, Sweden.
    Leijon, Göran
    Linköping University, Department of Clinical and Experimental Medicine, Neurology. Region Östergötland, Local Health Care Services in Central Östergötland, Department of Neurology. Linköping University, Faculty of Medicine and Health Sciences.
    Wikkelso, Carsten
    University of Gothenburg, Sweden.
    Incidence and outcome of surgery for adult hydrocephalus patients in Sweden2017In: British Journal of Neurosurgery, ISSN 0268-8697, E-ISSN 1360-046X, Vol. 31, no 1, p. 21-27Article in journal (Refereed)
    Abstract [en]

    Object: To present population-based and age related incidence of surgery and clinical outcome for adult patients operated for hydrocephalus, registered in the Swedish Hydrocephalus Quality Registry (SHQR). Methods: All patients registered in SHQR during 2004-2011 were included. Data on age, gender, type of hydrocephalus and type of surgery were extracted as well as three months outcome for patients with idiopathic normal pressure hydrocephalus (iNPH). Results: The material consisted of 2360 patients, 1229 men and 1131 women, age 63.8 +/- 14.4 years (mean standard deviation (SD)). The mean total incidence of surgery was 5.1 +/- 0.9 surgeries/100,000/year; 4.7 +/- 0.9 shunt surgeries and 0.4 +/- 0.1 endoscopic third ventriculostomies. For iNPH, secondary communicating hydrocephalus and obstructive hydrocephalus, the incidence of surgery was 2.2 +/- 0.8, 1.9 +/- 0.3 and 0.8 +/- 0.1/100,000/year, respectively. During 2004-2011, the incidence of surgery increased in total (p = .044), especially in age groups 70-79 years and amp;gt; 80 years (p = .012 and p = .031). After surgery, 253 of 652 iNPH patients (38.8%) improved at least one step on the modified Rankin scale (mRS). Number needed to treat was 3.0 for improving one patient from unfavourable (mRS 3-5) to favourable (mRS 0-2). The mean score of a modified iNPH scale increased from 54 +/- 23 preoperatively to 63 +/- 25 postoperatively (p amp;lt; .0001, n = 704), and 58% improved. No significant regional differences in incidence, surgical techniques or outcome were found. Conclusions: Incidence of hydrocephalus surgery increased significantly during 2004-2011, specifically in elderly patients. Surgical treatment of INPH markedly improved functional independence, but the improvement rate was low compared to recent single- and multicentre studies. Thus, the potential for surgical improvement is likely lower than generally reported when treating patients as part of everyday clinical care.

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