• 30-day mortality in patients treated for brain metastases: extracranial causes dominate 

      Nieder, Carsten; Stanisavljevic, Luka; Aanes, Siv Gyda; Mannsåker, Bård; Haukland, Ellinor Christin (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-12)
      Background: Established prognostic models, such as the diagnosis-specific graded prognostic assessment, were not designed to specifically address very short survival. Therefore, a brain metastases-specific 30-day mortality model may be relevant. We hypothesized that in-depth evaluation of a carefully defined cohort with short survival, arbitrarily defined as a maximum of 3 months, may provide ...
    • Adverse events in deceased hospitalised cancer patients as a measure of quality and safety in end-of-life cancer care 

      Haukland, Ellinor Christin; von Plessen, Christian; Nieder, Carsten; Vonen, Barthold (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-01)
      <i>Background</i> - Anticancer treatment exposes patients to negative consequences such as increased toxicity and decreased quality of life, and there are clear guidelines recommending limiting use of aggressive anticancer treatments for patients near end of life. The aim of this study is to investigate the association between anticancer treatment given during the last 30 days of life and adverse ...
    • Adverse events in hospitalised cancer patients: a comparison to a general hospital population 

      Haukland, Ellinor Christin; von Plessen, Christian; Nieder, Carsten; Vonen, Barthold (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-04-05)
      <p><i>Background</i>: Patients with cancer are often treated by many healthcare providers, receive complex and potentially toxic treatments that can increase the risk for iatrogenic harm. The aim of this study is to investigate whether hospitalised cancer patients are at higher risk of adverse events (AEs) compared to a general hospital population.</p> <p><i>Material and methods</i>: A total of ...
    • Altered fractionation short-course radiotherapy for stage II-III rectal cancer: A retrospective study 

      Geinitz, Hans; Nieder, Carsten; Kocik, Lukas; Track, Christine; Feichtinger, Johann; Weingartner, Theresa; Spiegl, Kurt J.; Füreder-Kitzmüller, Barbara; Kaufmann, Johanna; Seewald, Dietmar H.; Függer, Reinhold; Shamiyeh, Andreas; Petzer, Andreas L.; Kiesl, David; Hammer, Josef (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-14)
      <i>Purpose</i>: To report the long-term outcomes of neoadjuvant altered fractionation short-course radiotherapy in 271 consecutive patients with stage II-III rectal cancer.<p> <p><i>Patients and Methods</i>: This was a retrospective single institution study with median follow-up of 101 months (8.4 years). Patients who were alive at the time of analysis in 2018 were contacted to obtain functional ...
    • Anaemia and thrombocytopenia in patients with prostate cancer and bone metastases 

      Haukland, E; Nieder, Carsten; Pawinski, Adam; Dalhaug, Astrid (Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
    • Assessment of extracranial metastatic disease in patients with brain metastases: How much effort is needed in the context of evolving survival prediction models? 

      Nieder, Carsten; Mehta, Minesh P.; Guckenberger, Matthias; Gaspar, Laurie E.; Rusthoven, Chad G.; Sahgal, Arjun; Grosu, Anca L.; De Ruysscher, Dirk (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-04)
      Survival prediction models may serve as decision-support tools for clinicians who have to assign the right treatment to each patient, in a manner whereby harmful over- or undertreatment is avoided as much as possible. Current models differ regarding their components, the overall number of components and the weighting of individual components. Some of the components are easy to assess, such as age ...
    • Brain Metastases Research 1990-2010: Pattern of Citation and Systematic Review of Highly Cited Articles 

      Nieder, Carsten; Grosu, Anca L.; Mehta, Minesh P. (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      High and continuously increasing research activity related to different aspects of prevention, prediction, diagnosis and treatment of brain metastases has been performed between 1990 and 2010. One of the major databases contains 2695 scientific articles that were published during this time period. Different measures of impact, visibility, and quality of published research are available, each with ...
    • Brain Metastases: Is There Still a Role for Whole-Brain Radiation Therapy? 

      Nieder, Carsten; Andratschke, Nicolaus H.; Grosu, Anca L. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-27)
      Whole-brain radiation therapy (WBRT) has commonly been prescribed to palliate symptoms from brain metastases, to reduce the risk of local relapse after surgical resection, and to improve distant brain control after resection or radiosurgery. While targeting micrometastases throughout the brain can be considered advantageous, the simultaneous exposure of healthy brain tissue might cause adverse events. ...
    • Can current prognostic scores reliably guide treatment decisions in patients with brain metastases from malignant melanoma? 

      Nieder, Carsten; Marienhagen, Kirsten; Geinitz, Hans; Grosu, Anca L. (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      We evaluated the performance of the new 4-tiered melanoma-specific graded prognostic assessment (GPA) score and the previously published general GPA score in patients with brain metastases from malignant melanoma managed with different approaches including best supportive care. Materials and Methods: Retrospective analysis of 51 patients. Compared with the original analysis of the melanoma-specific ...
    • The challenge of durable brain control in patients with brain-only metastases from breast cancer 

      Nieder, Carsten; Oehlke, Oliver; Hintz, Mandy; Grosu, Anca L. (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-10-07)
      The vast majority of patients with brain metastases from breast cancer have extracranial metastases, e.g., in the liver, lungs or bones, with serious impact on prognosis. Limited research has been performed on patients with brain-only disease. We analyzed patterns of treatment, brain control and survival in uni- and multivariate analyses. All 25 patients with brain-only disease were treated with ...
    • Combined radio- and chemotherapy for non-small cell lung cancer: systematic review of landmark studies based on acquired citations 

      Nieder, Carsten; Pawinski, Adam; Andratschke, H (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      The important role of combined chemoradiation for several groups of patients with nonsmall cell lung cancer (NSCLC) is reflected by the large number of scientific articles published during the last 30 years. Different measures of impact and clinical relevance of published research are available, each with its own pros and cons. For this review, article citation rate was chosen. Highly cited ...
    • Comorbidity, Use of Common Medications, and Risk of Early Death in Patients with Localized or Locally Advanced Prostate Cancer 

      Nieder, Carsten; Dalhaug, Astrid; Pawinski, Adam; Aandahl, Gro; Norum, Jan (Journal article; Tidsskriftartikkel; Peer reviewed, 2011-06-09)
      In this paper, we analyze predictive factors for early death from comorbidity (defined as death within 3 years from diagnosis and unrelated to prostate cancer) in patients with localized or locally advanced prostate cancer. Such information may guide individually tailored treatment or observation strategies, and help to avoid overtreatment. We retrospectively analyzed baseline parameters including ...
    • Confirmatory analysis of QUARTZ study results: Survival prolongation after whole-brain radiotherapy 

      Nieder, Carsten; Dalhaug, Astrid; Pawinski, Adam (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-02-03)
      <p>Background/Aim: The aim of this study was to analyze the survival of patients with brain metastases treated with best supportive care or additional whole-brain radiotherapy (WBRT), in order to confirm results from the prospective randomized QUARTZ study, which suggested prolonged survival after WBRT (5 fractions of 4 Gy) if favorable prognostic factors were present (age younger than 60 years, ...
    • Considerations regarding carotid artery dose in radiotherapy of the cervical spine 

      Nieder, Carsten; Grant, David McKenzie (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-08)
      Radiation to the carotid arteries, e.g. in the context of head and neck cancer treatment, is one of several risk factors for artery stenosis. In principle, this fact may also have implications for stereotactic cervical spine radiotherapy, because long-term survival can be achieved in patients with oligometastatic disease and favorable prognostic features. Here, we suggest that radiation dose ...
    • Contemporary radiooncological management of bone metastases from breast cancer: factors associated with prescription of different fractionation regimens (short or long course) in a rural part of North Norway with long travel distance 

      Nieder, Carsten; Dalhaug, Astrid; Haukland, Ellinor; Mannsåker, Bård; Pawinski, Adam (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-01-19)
      The aim of this study was to reduce barriers that prevent implementation of evidence-based recommendations about single-fraction palliative radiotherapy (PRT) and to demonstrate that single-fraction PRT yields similar outcomes as long-course treatment (≥10 fractions) in patients with bone metastases from breast cancer. This retrospective study (2007–2014) included 118 Norwegian female patients. All ...
    • Continous controversy about radiation oncologists' choice of treatment regimens for bone metatases: should we blame doctors, canser-related features, or design of previous clinical studies 

      Nieder, Carsten; Pawinski, Adam; Dalhaug, Astrid (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Recent studies from Italy, Japan and Norway have confirmed previous reports, which found that a large variety of palliative radiotherapy regimens are used for painful bone metastases. Routine use of single fraction treatment might or might not be the preferred institutional approach. It is not entirely clear why inter-physician and interinstitution differences continue to persist despite numerous ...
    • Contribution of adverse events to death of hospitalised patients 

      Haukland, Ellinor Christin; Mevik, Kjersti; von Plessen, Christian; Nieder, Carsten; Vonen, Barthold (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-13)
      <i>Background</i> - There is no standardised method to investigate death as a patient safety indicator and we need valid and reliable measurements to use adverse events contributing to death as a quality measure.<p> <p><i>Objective</i> - To investigate the contribution of severe adverse events to death in hospitalised patients and clarify methodological differences using the Global Trigger Tool ...
    • Contribution of Case Reports to Brain Metastases Research: Systematic Review and Analysis of Pattern of Citation 

      Nieder, Carsten; Pawinski, Adam; Dalhaug, Astrid (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Research activity related to different aspects of prevention, prediction, diagnosis and treatment of brain metastases has increased during recent years. One of the major databases (Scopus) contains 942 scientific articles that were published during the 5-year time period 2006–2010. Of these, 195 (21%) reported on single patient cases and 12 (1%) were reports of 2 cases. Little is known about their ...
    • Contribution of serum biomarkers to prognostic assessment in patients with oligometastatic prostate cancer 

      Nieder, Carsten; Dalhaug, Astrid; Pawinski, Adam (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04)
      <i>Background/Aim</i>: The aim of this study was to analyze the prognostic impact of biomarkers, such as serum lactate dehydrogenase (LDH), in patients with oligometastatic castration-resistant prostate cancer, arbitrarily defined as a maximum of five metastatic lesions.<p><p> <i>Patients and Methods</i>: This was a retrospective single-institution analysis. Overall 34 patients were included, ...
    • Correlation between article download and citation figures for highly accessed articles from five open access oncology journals 

      Nieder, Carsten; Dalhaug, Astrid; Aandahl, Gro (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Different approaches can be chosen to quantify the impact and merits of scientific oncology publications. These include source of publication (including journal reputation and impact factor), whether or not articles are cited by others, and access/download figures. When relying on citation counts, one needs to obtain access to citation databases and has to consider that results differ from one ...