16 results on '"Halldorsdottir H"'
Search Results
2. Heparin-binding protein (HBP/CAP37) – a link to endothelin-1 in endotoxemia-induced pulmonary oedema?
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PERSSON, B. P., HALLDORSDOTTIR, H., LINDBOM, L., ROSSI, P., HERWALD, H., WEITZBERG, E., and OLDNER, A.
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- 2014
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3. Heparin-binding protein as a biomarker of post-injury sepsis in trauma patients
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Halldorsdottir, H. D., primary, Eriksson, J., additional, Persson, B. P., additional, Herwald, H., additional, Lindbom, L., additional, Weitzberg, E., additional, and Oldner, A., additional
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- 2018
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4. Early postpartum mitral valve thrombosis requiring extra corporeal membrane oxygenation before successful valve replacement
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Halldorsdottir, H., primary, Nordström, J., additional, Brattström, O., additional, Sennström, M.M., additional, Sartipy, U., additional, and Mattsson, E., additional
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- 2016
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5. A prospective study on the incidence of rheumatoid arthritis among people with persistent increase of rheumatoid factor
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Halldorsdottir, H D, primary
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- 2000
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6. Heparin-binding protein ( HBP/ CAP37) - a link to endothelin-1 in endotoxemia-induced pulmonary oedema?
- Author
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PERSSON, B. P., HALLDORSDOTTIR, H., LINDBOM, L., ROSSI, P., HERWALD, H., WEITZBERG, E., and OLDNER, A.
- Subjects
- *
EDEMA , *SEPSIS , *CARRIER proteins , *HEPARIN , *NEUTROPHILS , *BIOMARKERS , *ENDOTOXEMIA , *PATIENTS - Abstract
Background Vascular leakage and oedema formation are key components in sepsis. In septic patients, plasma levels of the vasoconstrictive and pro-inflammatory peptide endothelin-1 ( ET-1) correlate with mortality. During sepsis, neutrophils release heparin-binding protein ( HBP) known to increase vascular permeability and to be a promising biomarker of human sepsis. As disruption of ET-signalling in endotoxemia attenuates formation of oedema, we hypothesized that this effect could be related to decreased levels of HBP. To investigate this, we studied the effects of ET-receptor antagonism on plasma HBP and oedema formation in a porcine model of sepsis. In addition, to further characterize a potential endothelin/ HBP interaction, we investigated the effects of graded ET-receptor agonist infusions. Methods Sixteen anesthetized pigs were subjected to 5 h of endotoxemia and were randomized to receive either the ET-receptor antagonist tezosentan or vehicle after 2 h. Haemodynamics, gas-exchange and lung water were monitored. In separate experiments, plasma HBP was measured in eight non-endotoxemic animals exposed to graded infusion of ET-1 or sarafotoxin 6 c. Results Endotoxemia increased plasma ET-1, plasma HBP, and extravascular lung water. Tezosentan-treatment markedly attenuated plasma HBP and extravascular lung water, and these parameters correlated significantly. Tezosentan decreased pulmonary vascular resistance and increased respiratory compliance. In non-endotoxemic pigs graded ET-1 and sarafotoxin 6 c infusions caused a dose-dependent increase in plasma HBP. Conclusions ET-receptor antagonism reduces porcine endotoxin-induced pulmonary oedema and plasma levels of the oedema-promoting protein HBP. Moreover, direct ET-receptor stimulation distinctively increases plasma HBP. Together, these results suggest a novel mechanism by which ET-1 contributes to formation of oedema during experimental sepsis. [ABSTRACT FROM AUTHOR]
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- 2014
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7. Effects of inhaled histamine, methacholine and capsaicin on sputum levels of alpha 2-macroglobulin
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Halldorsdottir, H., primary, Greiff, L., additional, Wollmer, P., additional, Andersson, M., additional, Svensson, C., additional, Alkner, U., additional, and Persson, C. G., additional
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- 1997
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8. [Intracranial pressure targeted treatment in acute bacterial meningitis increased survival]
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Glimåker, M., Johansson, B., Halldorsdottir, H., Wanecek, M., Adrian Elmi-Terander, and Bellander, Bm
9. The effect of heparins on plasma concentration of heparin-binding protein: a pilot study.
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Halldorsdottir H, Lindbom L, Ebberyd A, Oldner A, and Weitzberg E
- Abstract
Background: Neutrophil-derived heparin-binding protein (HBP) plays a role in the pathophysiology of impaired endothelial dysfunction during inflammation. HBP has been suggested as a predictor of organ dysfunction and disease progression in sepsis. We investigated the effects of heparins on plasma concentrations of HBP in patients undergoing surgery., Methods: We studied three groups of patients receiving heparins during or after surgery. The vascular surgery group received 3000-7500 U, whereas the cardiac surgery group received 27 500-40 000 U. After major general surgery, the third group received 5000 U of low-molecular-weight heparin (LMWH) subcutaneously. Serial plasma HBP concentrations were measured after these treatments with two different methods: Axis-Shield ELISA and Joinstar FIC-Q100. In addition, plasma myeloperoxidase and syndecan-1 were measured in the cardiac surgery group., Results: During vascular surgery, heparin induced a six-fold increase in HBP within 2 min, from 3.6 (2.4-5.4) to 21.4 (9.0-35.4) ng ml
-1 ( P <0.001). During cardiac surgery, the higher dose of heparin elevated HBP concentrations from 5.3 (2.7-6.1) to 48.7 (38.4-70.1) ng ml-1 ( P <0.0001) within 3 min. Patients receiving LMWH showed an increase from a baseline of 5.7 (3.7-12.1) ng ml-1 to a peak HBP concentration of 14.8 (9.5-18.1) ng ml-1 ( P <0.0001) after 3 h. Plasma concentrations of myeloperoxidase, but not syndecan-1, also responded with a rapid increase after heparin. There was a strong correlation between the two methods for HBP analysis ( r =0.94)., Conclusions: Plasma concentrations of HBP increased rapidly and dose-dependently after heparin administration. Subcutaneous administration of LMWH increases plasma HBP, but to a lesser degree., Clinical Trial Registration: ClinicalTrials.gov identifier: NCT04146493., (© 2023 The Authors.)- Published
- 2024
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10. Improving outpatient care for heart failure through digital innovation: a feasibility study.
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Arnar DO, Oddsson SJ, Gunnarsdottir T, Gudlaugsdottir GJ, Gudmundsson EF, Ketilsdóttir A, Halldorsdottir H, Hrafnkelsdottir TJ, Hallsson H, Amundadottir ML, and Thorgeirsson T
- Abstract
Background: Heart failure (HF) affects over 26 million people worldwide. Multidisciplinary management strategies that include symptom monitoring and patient self-care support reduce HF hospitalization and mortality rates. Ideally, HF follow-up and self-care support includes lifestyle-change recommendations and remote monitoring of weight and HF symptoms. Providing these via a digital solution may be ideal for improving HF disease outcomes and reducing the burden on providers and healthcare systems. This study's main objective was to assess the feasibility of a digital solution including remote monitoring, lifestyle-change, and self-care support for HF outpatients in Iceland., Methods: Twenty HF patients (mean age 57.5 years, 80% males) participated in an 8-week study. They were provided with a digital solution (SK-141), including lifestyle-change and disease self-care support, a remote symptom monitoring system, and a secure messaging platform between healthcare providers and patients. This feasibility study aimed to assess patient acceptability of this new intervention, retention rate, and to evaluate trends in clinical outcomes. To assess the acceptability of SK-141, participants completed a questionnaire about their experience after the 8-week study. Participants performed daily assigned activities (missions), including self-reporting symptoms. Clinical outcomes were assessed with the Hospital Anxiety and Depression Scale and the Kansas City Cardiomyopathy Questionnaire at the study's beginning and end with an online survey., Results: Of the 24 patients invited, 20 were elected to participate. The retention rate of participants throughout the 8-week period was high (80%). At the end of the 8 weeks, thirteen participants completed a questionnaire about their experience and acceptability of the SK-141. They rated their experience positively including on questions whether they would recommend the solution to others (6.8 on a scale of 1-7), whether the solution had improved their life and well-being (5.7 on a scale of 1-7), and whether it was user friendly (5.5 on a scale of 1-7). Many of the clinical parameters studied exhibited a promising trend towards improvement over the 8-week period., Conclusion: The digital solution, SK-141, was very acceptable to patients and also showed promising clinical results in this small feasibility study. These results encourage us to conduct a longer, more extensive, adequately powered, randomized-controlled study to assess whether this digital solution can improve the quality of life and clinical outcomes among HF patients., (© 2022. The Author(s).)
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- 2022
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11. [Cerebral venous thrombosis after dural punture - three cases].
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Palmgren J, Halldorsdottir H, and Hein A
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- Blood Patch, Epidural methods, Female, Headache etiology, Humans, Pregnancy, Anesthesia, Epidural, Post-Dural Puncture Headache diagnosis, Post-Dural Puncture Headache etiology, Post-Dural Puncture Headache therapy, Venous Thrombosis diagnostic imaging, Venous Thrombosis drug therapy, Venous Thrombosis etiology
- Abstract
Cerebral venous thrombosis (CVT) is a rare form of cerebrovascular disease. There seems to be a relationship between intracranial hypotension due to dural puncture and CVT but causality is uncertain. Headache is common in the obstetric population, frequently preceded by epidural anesthesia. Furthermore, the risk of thromboembolic complication is increased in the postpartum period. Therefore, the symtoms of postdural puncture headache (PDPH) and CVT constitute a diagnostic challenge. Headache not responding to epidural blood patch or reappearing after epidural blood patch as well as headache changing in character indicates further investigation with adequate neuroimaging of the brain. We describe three cases of CVT following dural puncture and intracranial hypotension with the aim to raise awareness of this clinical condition.
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- 2022
12. Blue Rubber Bleb Nevus Syndrome in the Obstetric Patient: A Case Report of Anesthetic Implications and Management.
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Hult M, Halldorsdottir H, Vladic Stjernholm Y, Hein A, and Jörnvall H
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- Female, Humans, Pregnancy, Anesthetics, Gastrointestinal Neoplasms complications, Gastrointestinal Neoplasms surgery, Nevus, Blue, Skin Neoplasms
- Abstract
Blue rubber bleb nevus syndrome (BRBNS) is a rare systemic syndrome characterized by venous malformations usually found in the skin and visceral organs. To date, 11 case reports describing BRBNS during pregnancy have been published. To our knowledge, this is the first report describing intracranial, airway, epidural, and birth canal involvement of venous malformations in the same parturient. Key lessons learned include clinical presentation, workup, team management, and care of obstetric patients with this disorder., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2021 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the International Anesthesia Research Society.)
- Published
- 2021
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13. Impact of technology-based patient education on modifiable cardiovascular risk factors of people with coronary heart disease: A systematic review.
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Halldorsdottir H, Thoroddsen A, and Ingadottir B
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- Coronary Disease prevention & control, Humans, Risk Factors, Technology, Cardiovascular Diseases prevention & control, Heart Disease Risk Factors, Patient Education as Topic
- Abstract
Objective: To collect evidence on what types of technology and content are most effective in helping people with coronary heart disease (CHD) to change their modifiable cardiovascular risk factors., Methods: A literature search was performed to find relevant studies published between 1 January 2008 and 31 December 2018 in PubMed, CINAHL, PROQUEST and Scopus databases. Selected outcomes were risk factors (exercise, diet, blood pressure, blood sugar, cholesterol, body mass index, tobacco use). The quality of the studies was evaluated according to Joanna Briggs Institute Reviewers Manual Checklists for risk for bias, TIDieR for quality of interventions, and PRISMA statement for presenting results., Results: Eighteen quantitative (17 RCT´s and one quasi-experimental) studies were included. Patient education delivered through telephone, text messaging, webpages, and smartphone applications resulted in significant changes in some risk factors of people with CHD. Sufficient descriptions of the content and intervention methods were lacking., Conclusion: Patient education delivered with technology can help people with CHD to modify their risk factors. There is a need for better descriptions of the content and delivery of educational interventions in studies., Practice Implications: Patient education needs to be delivered with technological solutions that best support the multidimensional needs of CHD patients., (Copyright © 2020 Elsevier B.V. All rights reserved.)
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- 2020
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14. [Intracranial pressure targeted treatment in acute bacterial meningitis increased survival].
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Glimåker M, Johansson B, Halldorsdottir H, Wanecek M, Elmi-Terander A, and Bellander BM
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- Acute Disease, Adolescent, Adult, Aged, Cerebral Ventricles, Female, Glasgow Coma Scale, Humans, Intracranial Hypertension drug therapy, Intracranial Hypertension microbiology, Intracranial Hypertension mortality, Male, Meningitis, Bacterial drug therapy, Meningitis, Bacterial mortality, Middle Aged, Neisseria meningitidis isolation & purification, Prospective Studies, Streptococcus pneumoniae isolation & purification, Survival Rate, Treatment Outcome, Drainage, Intracranial Hypertension therapy, Intracranial Pressure, Meningitis, Bacterial therapy
- Abstract
To evaluate the efficacy of intracranial pressure (ICP)-targeted treatment, compared to standard intensive care, in adults with community acquired acute bacterial meningitis (ABM) and severely impaired consciousness, a prospectively designed intervention-control comparison study was performed. Included were patients with confirmed ABM and severely impaired mental status on admission. Fifty-two patients, given ICP-targeted treatment at a neuro-intensive care unit, and 53 control cases, treated with conventional intensive care, were included. All patients received intensive care with me-chanical ventilation, sedation, antibiotics and corticosteroids according to current guidelines. ICP-targeted treatment was performed in the intervention group, aiming at ICP 50 mmHg. The mortality was significantly lower in the intervention group compared to controls, 5/52 (10%) versus 16/53 (30%). Furthermore, only 17 patients (32%) in the control group fully recovered, compared to 28 (54%) in the intervention group. Early neuro-intensive care using ICP-targeted therapy reduces mortality and improves the overall outcome in adult patients with ABM and severely impaired mental status on admission.
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- 2014
15. Neuro-intensive treatment targeting intracranial hypertension improves outcome in severe bacterial meningitis: an intervention-control study.
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Glimåker M, Johansson B, Halldorsdottir H, Wanecek M, Elmi-Terander A, Ghatan PH, Lindquist L, and Bellander BM
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- Adolescent, Adult, Aged, Case-Control Studies, Community-Acquired Infections complications, Community-Acquired Infections mortality, Female, Follow-Up Studies, Glasgow Outcome Scale, Humans, Intensive Care Units, Intracranial Hypertension etiology, Intracranial Hypertension mortality, Intracranial Pressure, Male, Meningitis, Bacterial complications, Meningitis, Bacterial mortality, Middle Aged, Prognosis, Prospective Studies, Respiration, Artificial, Retrospective Studies, Survival Rate, Young Adult, Cerebrospinal Fluid, Community-Acquired Infections therapy, Drainage methods, Intracranial Hypertension therapy, Meningitis, Bacterial therapy
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Objective: To evaluate the efficacy of early intracranial pressure (ICP)-targeted treatment, compared to standard intensive care, in adults with community acquired acute bacterial meningitis (ABM) and severely impaired consciousness., Design: A prospectively designed intervention-control comparison study of adult cases from September 2004 to January 2012., Patients: Included patients were confirmed ABM-cases, aged 16-75 years, with severely impaired mental status on admission. Fifty-two patients, given ICP-targeted treatment at the neuro-intensive care unit, and 53 control cases, treated with conventional intensive care, were included. All the patients received intensive care with mechanical ventilation, sedation, antibiotics and corticosteroids according to current guidelines. Additional ICP-treatment in the intervention group included cerebrospinal fluid drainage using external ventricular catheters (n = 48), osmotherapy (n = 21), hyperventilation (n = 13), external cooling (n = 9), gram-doses of methylprednisolone (n = 3) and deep barbiturate sedation (n = 2) aiming at ICP <20 mmHg and a cerebral perfusion pressure of >50 mmHg., Measurements: The primary endpoint was mortality at two months and secondary endpoint was Glasgow outcome score and hearing ability at follow-up at 2-6 months., Outcomes: The mortality was significantly lower in the intervention group compared to controls, 5/52 (10%) versus 16/53 (30%; relative risk reduction 68%; p<0.05). Furthermore, only 17 patients (32%) in the control group fully recovered compared to 28 (54%) in the intervention group (relative risk reduction 40%; p<0.05)., Conclusions: Early neuro-intensive care using ICP-targeted therapy, mainly cerebrospinal fluid drainage, reduces mortality and improves the overall outcome in adult patients with ABM and severely impaired mental status on admission.
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- 2014
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16. [Diabetes type 1 in young adults: The relationship between psycho-social variables, glycemic control, depression and anxiety].
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Steinsdottir FK, Halldorsdottir H, Gudmundsdottir A, Arnardottir S, Smari J, and Arnarson EO
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- Adaptation, Psychological, Adult, Anxiety epidemiology, Depression epidemiology, Diabetes Mellitus, Type 1 blood, Diabetes Mellitus, Type 1 epidemiology, Emotions, Health Knowledge, Attitudes, Practice, Humans, Iceland epidemiology, Quality of Life, Surveys and Questionnaires, Young Adult, Anxiety etiology, Blood Glucose metabolism, Depression etiology, Diabetes Mellitus, Type 1 psychology, Glycated Hemoglobin metabolism, Social Support
- Abstract
Objective: The aim of the present study was to investigate whether psycho-social variables, for example social support and task- and emotion-oriented coping would predict psychological and physical well being among young adults with diabetes., Material and Methods: Participants were 56 individuals in their twenties suffering from type 1 diabetes. Response rate was 78%. The participants came from the whole of Iceland, 64.3% from the Greater Reykjavík area and 33.9% from rural areas. One participant did not indicate his place of residence. Self-assessment scales were used to assess depression, anxiety, task-, avoidance- and emotion-oriented coping, social support and problems relating to diabetes. Additional information was obtained from patients' records concerning the results of blood glucose measurements (HbA1c)., Results: Good social support was related to less anxiety and depression and to less self-reported problems related to having diabetes. Emotion-oriented coping was related to not feeling well and task- oriented coping to feeling better. No relationship was found between psychosocial variables and blood glucose measurements and a limited relationship between self-reported problems related to having diabetes and these measurements., Conclusions: Social support and coping are strongly related to measurements of depression, anxiety and problems related to having diabetes in the present age group. The results indicate that it is very important to teach and strengthen usage, as possible, of task-oriented coping instead of emotion-oriented coping. The results also indicate that social support is highly important for young adults with diabetes type 1. It is clear that friends and family have to be more involved in the treatment and also more educated about the disease and the importance of giving the right kind of support.
- Published
- 2008
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