Browsing Bergen Open Research Archive by Author "Myklebust, Tor Åge"
Now showing items 1-18 of 18
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Accurate population-based model for individual prediction of colon cancer recurrence
Österman, Erik; Ekström, Joakim; Sjöblom, Tobias; Kørner, Hartwig; Myklebust, Tor Åge; Guren, Marianne; Glimelius, Bengt (Journal article; Peer reviewed, 2021)Background Prediction models are useful tools in the clinical management of colon cancer patients, particularly when estimating the recurrence rate and, thus, the need for adjuvant treatment. However, the most used models ... -
The association between preoperative MRI findings and clinical improvement in patients included in the NORDSTEN spinal stenosis trial
Aaen, Jørn Ståle; Banitalebi, Hasan; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Myklebust, Tor Åge; Anvar, Masoud D; Weber, Clemens; Solberg, Tore; Grundnes, Oliver; Brisby, Helena; Indrekvam, Kari; Hermansen, Erland (Journal article; Peer reviewed, 2022)Purpose To investigate potential associations between preoperative MRI findings and patient reported outcome measures (PROMs) after surgery for lumbar spinal stenosis (LSS). Methods The NORDSTEN trial included 437 ... -
Can We Optimize Antibiotic Use in Norwegian Neonates? A Prospective Comparison Between a University Hospital and a District Hospital
Thaulow, Christian Magnus; Berild, Dag; Blix, Hege Salvesen; Brigtsen, Anne Karin; Myklebust, Tor Åge; Eriksen, Beate Horsberg (Peer reviewed; Journal article, 2019)Background: Worldwide, a large proportion of neonates are prescribed antibiotics without having infections leading to increased antimicrobial resistance, disturbance of the evolving microbiota, and increasing the risk of ... -
Cancer in ANCA-Associated Glomerulonephritis: A Registry-Based Cohort Study
Sriskandarajah, Sanjeevan; Bostad, Leif; Myklebust, Tor Åge; Møller, Bjørn; Skrede, Steinar; Bjørneklett, Rune (Peer reviewed; Journal article, 2017-12-18)Background. Immunosuppressive therapy for antineutrophil cytoplasmic antibody-associated vasculitis has been associated with increased malignancy risk. Objectives. To quantify the cancer risk associated with contemporary ... -
Cardiovascular outcomes after curative prostate cancer treatment: A population-based cohort study
Kjellstadli, Camilla; Forster, Rachel Bedenis; Myklebust, Tor Åge; Bjørge, Tone; Bønaa, Kaare Harald; Helle, Svein Inge; Kvåle, Rune (Journal article; Peer reviewed, 2023-03-31)Objective: To investigate differences in cardiovascular disease (CVD) morbidity and mortality after radical prostatectomy or definitive radiotherapy with or without androgen deprivation therapy (ADT). Materials and ... -
Clinical and MRI findings in lumbar spinal stenosis: baseline data from the NORDSTEN study
Aaen, Jørn; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Myklebust, Tor Åge; Banitalebi, Hasan; Anvar, Masoud; Brox, Jens Ivar; Weber, Clemens; Solberg, Tore; Grundnes, Oliver; Brisby, Helena; Indrekvam, Kari; Hermansen, Erland (Journal article; Peer reviewed, 2021)Purpose: The aim was to describe magnetic resonance imaging findings in patients planned for lumbar spinal stenosis surgery. Further, to describe possible associations between MRI findings and patient characteristics with ... -
Clinical outcome after surgery for lumbarspinal stenosis in patients with insignificantlower extremity pain. A prospective cohortstudy from the Norwegian registry for spine surgery
Hermansen, Erland; Myklebust, Tor Åge; Austevoll, Ivar Magne; Rekeland, Frode; Solberg, Tore; Storheim, Kjersti; Grundnes, Oliver; Aaen, Jørn Ståle; Brox, Jens Ivar; Hellum, Christian; Indrekvam, Kari (Peer reviewed; Journal article, 2019-01-22)Background: Spinal stenosis is a clinical diagnosis in which the main symptom is pain radiating to the lower extremities, or neurogenic claudication. Radiological spinal stenosis is commonly observed in the population and ... -
Comparable Increases in Dural Sac Area After Three Different Posterior Decompression Techniques for Lumbar Spinal Stenosis: Radiological Results From a Randomized Controlled Trial in the NORDSTEN Study
Hermansen, Erland; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Myklebust, Tor Åge; Aaen, Jørn Ståle; Banitalebi, Hasan; Anvar, Masoud; Rekeland, Frode; Brox, Jens Ivar; Franssen, Eric; Weber, Clemens; Solberg, Tore; Haug, Knut Jørgen; Grundnes, Oliver; Brisby, Helena; Indrekvam, Kari (Journal article; Peer reviewed, 2020)Purpose: To investigate changes in dural sac area after three different posterior decompression techniques in patients undergoing surgery for lumbar spinal stenosis. Decompression of the nerve roots is the main surgical ... -
Comparison of 3 Different Minimally Invasive Surgical Techniques for Lumbar Spinal Stenosis: A Randomized Clinical Trial
Hermansen, Erland; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Myklebust, Tor Åge; Aaen, Jørn Ståle; Banitalebi, Hasan; Anvar, Masoud D; Rekeland, Frode; Brox, Jens Ivar; Franssen, Eric; Weber, Clemens; Solberg, Tore; Furunes, Håvard; Grundnes, Oliver; Brisby, Helena; Indrekvam, Kari (Journal article; Peer reviewed, 2022)Importance: Operations for lumbar spinal stenosis is the most often performed surgical procedure in the adult lumbar spine. This study reports the clinical outcome of the 3 most commonly used minimally invasive posterior ... -
Hva betyr tidligere hjerte- og karsykdom eller kreft for risiko for død etter påvist SARS-CoV-2?
Kvåle, Rune; Bønaa, Kaare Harald; Forster, Rachel Bedenis; Gravningen, Kirsten Midttun; Juliusson, Pétur Benedikt; Myklebust, Tor Åge (Journal article; Peer reviewed, 2020)BAKGRUNN Hjerte- og karsykdommer og kreft har vært beskrevet som mulige risikofaktorer for død av covid-19. Hensikten med studien er å undersøke om tidligere påvist hjerte- og karsykdom eller kreft har påvirket risiko for ... -
Impact of prebiopsy MRI on prostate cancer staging: Results from the Norwegian Prostate Cancer Registry
Haug, Erik Skaaheim; Myklebust, Tor Åge; Juliebø-Jones, Patrick; Reisæter, Lars Anders Rokne; Aas, Kirsti; Berg, Arne Stenrud; Muller, Christoph Rainer; Hofmann, Bjørn Morten; Størkersen, Øystein; Nilsen, Kim L.; Johannessen, Tom Børge; Beisland, Christian (Journal article; Peer reviewed, 2023)Objectives The aim of this study is to evaluate the 2015 introduction of prebiopsy magnetic resonance imaging of the prostate (MRI-P) as the standard of care for diagnosing prostate cancer (PCa) by the Norwegian public ... -
Is the presence of foraminal stenosis associated with outcome in lumbar spinal stenosis patients treated with posterior microsurgical decompression
Aaen, Jørn Ståle; BANITALEBI, HASAN; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Myklebust, Tor Åge; Anvar, Masoud D; Weber, Clemens; Solberg, Tore; Grundnes, Oliver; Brisby, Helena; Indrekvam, Kari; Hermansen, Erland (Journal article; Peer reviewed, 2023)Background We aim to investigate associations between preoperative radiological findings of lumbar foraminal stenosis with clinical outcomes after posterior microsurgical decompression in patients with predominantly central ... -
Mortality and cause of death in multiple sclerosis in western Norway 1950-2021: A registry-based linkage study
Willumsen, Johannes Sverre; Grytten, Nina; Aarseth, Jan Harald; Myklebust, Tor Åge; Myhr, Kjell-Morten; Midgard, Rune (Journal article; Peer reviewed, 2022)Background Persons with multiple sclerosis (pwMS) have higher risk of mortality compared with the general population. Longitudinal studies are important for understanding the evolution of survival in pwMS. Objective ... -
A novel MRI index for paraspinal muscle fatty infiltration: reliability and relation to pain and disability in lumbar spinal stenosis: results from a multicentre study
Aaen, Jørn Ståle; Storheim, Kjersti; Negård, Anne; Myklebust, Tor Åge; Grotle, Margreth; Hellum, Christian; Espeland, Ansgar; Anvar, Masoud D; Indrekvam, Kari; Weber, Clemens; Brox, Jens Ivar; Brisby, Helena; Hermansen, Erland; Banitalebi, Hasan (Journal article; Peer reviewed, 2022)Background Fatty infiltration of the paraspinal muscles may play a role in pain and disability in lumbar spinal stenosis. We assessed the reliability and association with clinical symptoms of a method for assessing fatty ... -
Postoperative Dural Sac Cross-Sectional Area as an Association for Outcome After Surgery for Lumbar Spinal Stenosis: Clinical and Radiological Results From the NORDSTEN-Spinal Stenosis Trial
Hermansen, Erland; Myklebust, Tor Åge; Weber, Clemens; Brisby, Helena; Austevoll, Ivar Magne; Hellum, Christian; Storheim, Kjersti; Aaen, Jørn Ståle; Banitalebi, Hasan; Brox, Jens Ivar; Grundnes, Oliver; Rekeland, Frode Gurvin; Solberg, Tore; Franssen, Eric; Indrekvam, Kari (Journal article; Peer reviewed, 2023)Study Design: Prospective cohort study. Objective: The aim was to investigate the association between postoperative dural sac cross-sectional area (DSCA) after decompressive surgery for lumbar spinal stenosis and clinical ... -
Preoperative fatty infiltration of paraspinal muscles assessed by MRI is associated with less improvement of leg pain 2 years after surgery for lumbar spinal stenosis
Banitalebi, Hasan; Hermansen, Erland; Hellum, Christian; Espeland, Ansgar; Storheim, Kjersti; Myklebust, Tor Åge; Indrekvam, Kari; Brisby, Helena; Weber, Clemens; Anvar, Masoud; Aaen, Jørn Ståle; Negård, Anne (Journal article; Peer reviewed, 2024)Abstract Purpose Fatty infiltration (FI) of the paraspinal muscles may associate with pain and surgical complications in patients with lumbar spinal stenosis (LSS). We evaluated the prognostic influence of MRI-assessed ... -
Reliability of preoperative MRI findings in patients with lumbar spinal stenosis
Banitalebi, Hasan; Espeland, Ansgar; Anvar, Masoud D; Hermansen, Erland; Hellum, Christian; Brox, Jens Ivar; Myklebust, Tor Åge; Indrekvam, Kari; Brisby, Helena; Weber, Clemens; Aaen, Jørn Ståle; Austevoll, Ivar Magne; Grundnes, Oliver; Negård, Anne (Journal article; Peer reviewed, 2022)Background Magnetic Resonance Imaging (MRI) is an important tool in preoperative evaluation of patients with lumbar spinal stenosis (LSS). Reported reliability of various MRI findings in LSS varies from fair to excellent. ... -
Treatment and 30-day mortality after myocardial infarction in prostate cancer patients: A population-based study from Norway
Forster, Rachel Bedenis; Kjellstadli, Camilla; Myklebust, Tor Åge; Egeland, Grace M.; Sulo, Gerhard; Bjørge, Tone; Bønaa, Kaare Harald; Juliusson, Pétur Benedikt; Kvåle, Rune (Journal article; Peer reviewed, 2023)Introduction: There is limited knowledge about the use of invasive treatment and mortality after acute myocardial infarction (AMI) in prostate cancer (PCa) patients. We therefore wanted to compare rates of invasive treatment ...