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Sökning: WFRF:(Karlsson Per) > (2020-2024)

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1.
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2.
  • Killander, Fredrika, et al. (författare)
  • Kommentar angående tidigare artikel
  • 2020
  • Ingår i: Onkologi i Sverige : den oberoende tidningen för svensk cancervård. - 1653-1582. ; 20:6, s. 14-15
  • Tidskriftsartikel (populärvet., debatt m.m.)
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3.
  • Killander, Fredrika, et al. (författare)
  • No Increased Cardiac Mortality or Morbidity of Radiation Therapy in Breast Cancer Patients After Breast-Conserving Surgery : 20-Year Follow-up of the Randomized SweBCGRT Trial
  • 2020
  • Ingår i: International Journal of Radiation Oncology, Biology, Physics. - : Elsevier BV. - 0360-3016 .- 1879-355X. ; 107:4, s. 701-709
  • Tidskriftsartikel (refereegranskat)abstract
    • PurposeRadiation therapy (RT) after breast-conserving surgery reduces locoregional recurrences and improves survival but may cause late side effects. The main purpose of this paper was to investigate long-term side effects after whole breast RT in a randomized clinical trial initiated in 1991 and to report dose-volume data based on individual 3-dimensional treatment plans for organs at risk.Methods and MaterialsThe trial included 1187 patients with T1-2 N0 breast cancer randomized to postoperative tangential whole breast RT or no further treatment. The prescription dose to the clinical target volume was 48 to 54 Gy. We present 20-year follow-up on survival, cause of death, morbidity, and later malignancies. For a cohort of patients (n = 157) with accessible computed tomography–based 3-dimensional treatment plans in Dicom-RT format, dose-volume descriptors for organs at risk were derived. In addition, these were compared with dose-volume data for a cohort of patients treated with contemporary RT techniques.ResultsThe cumulative incidence of cardiac mortality was 12.4% in the control group and 13.0% in the RT group (P = .8). There was an increase in stroke mortality: 3.4% in the control group versus 6.7% in the RT group (P = .018). Incidences of contralateral breast cancer and lung cancer were similar between groups. The median Dmean (range) heart dose for left-sided treatments was 3.0 Gy (1.1-8.1), and the corresponding value for patients treated in 2017 was 1.5 Gy (0.4-6.0).ConclusionsIn this trial, serious late side effects of whole breast RT were limited and less than previously reported in large meta-analyses. We observed no increase in cardiac mortality in irradiated patients. Doses to the heart were a median Dmean of 3.0 Gy for left-sided RT. The observed increase in stroke mortality may partly be secondary to cardiac side effects, complications to anticoagulant treatment, or to chance, rather than a direct side effect of tangential whole breast irradiation.
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4.
  • Akselsson, Cecilia, et al. (författare)
  • A Combined Measurement and Modelling Approach to Assess the Sustainability of Whole-Tree Harvesting—A Swedish Case Study
  • 2021
  • Ingår i: Sustainability. - : MDPI AG. - 2071-1050. ; 13:4
  • Tidskriftsartikel (refereegranskat)abstract
    • The demand of renewable energy has increased the interest in whole-tree harvesting. The sustainability of whole-tree harvesting after clear-cutting, from an acidification point of view, depends on two factors: the present acidification status and the further loss of buffering capacity at harvesting. The aims of this study were to investigate the relationship between these two factors at 26 sites along an acidification gradient in Sweden, to divide the sites into risk classes, and to examine the geographical distribution of them in order to provide policy-relevant insights. The present status was represented by the acid neutralizing capacity (ANC) in soil solution, and the loss of buffering capacity was represented by the estimated exceedance of critical biomass harvesting (CBH). The sites were divided into three risk classes combining ANC and exceedance of CBH. ANC and exceedance of CBH were negatively correlated, and most sites had either ANC < 0 and exceedance (high risk) or ANC > 0 and no exceedance (low risk). There was a geographical pattern, with the high risk class concentrated to southern Sweden, which was mainly explained by higher historical sulfur deposition and site productivity in the south. The risk classes can be used in the formulation of policies on whole-tree harvesting and wood ash recycling.
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5.
  • Alvez, Maria Bueno, et al. (författare)
  • Next generation pan-cancer blood proteome profiling using proximity extension assay
  • 2023
  • Ingår i: Nature Communications. - : Springer Nature. - 2041-1723. ; 14:1
  • Tidskriftsartikel (refereegranskat)abstract
    • A comprehensive characterization of blood proteome profiles in cancer patients can contribute to a better understanding of the disease etiology, resulting in earlier diagnosis, risk stratification and better monitoring of the different cancer subtypes. Here, we describe the use of next generation protein profiling to explore the proteome signature in blood across patients representing many of the major cancer types. Plasma profiles of 1463 proteins from more than 1400 cancer patients are measured in minute amounts of blood collected at the time of diagnosis and before treatment. An open access Disease Blood Atlas resource allows the exploration of the individual protein profiles in blood collected from the individual cancer patients. We also present studies in which classification models based on machine learning have been used for the identification of a set of proteins associated with each of the analyzed cancers. The implication for cancer precision medicine of next generation plasma profiling is discussed.
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6.
  • Braun, Sabine, et al. (författare)
  • Nitrogen deposition in forests: Statistical modeling of total deposition from throughfall loads
  • 2022
  • Ingår i: Frontiers in Forests and Global Change. - : IVL Svenska Miljöinstitutet. - 2624-893X. ; 5
  • Tidskriftsartikel (refereegranskat)abstract
    • Introduction: Nitrogen (N) gradient studies in some cases use N deposition inthroughfall as measure of N deposition to forests.For evaluating critical loadsof N, however, information on total N deposition is required, i.e., the sum ofestimates of dry, wet and occult deposition.Methods: The present paper collects a number of studies in Europe wherethroughfall and total N deposition were compared in different forest types.From this dataset a function was derived which allows to estimate total Ndeposition from throughfall N deposition.Results: At low throughfall N deposition values, the proportion of canopyuptake is high and thus the underestimation of total deposition by throughfallN needs to be corrected.At throughfall N deposition values > 20 kg Nha?1 yr?1 canopy uptake is getting less important.Conclusion: This work shows that throughfall clearly underestimates totaldeposition of nitrogen. With the present data set covering large parts of Europe it is possible to derive a critical load estimate from gradient studiesusing throughfall data.
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7.
  • Chamalidou, Chaido, 1972, et al. (författare)
  • Survival patterns of invasive lobular and invasive ductal breast cancer in a large population-based cohort with two decades of follow up
  • 2021
  • Ingår i: Breast. - : Churchill Livingstone. - 0960-9776 .- 1532-3080. ; 59, s. 294-300
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Invasive lobular carcinoma (ILC) comprises 8-15 % of all invasive breast cancers and large population-based studies with >10 years of follow-up are rare. Whether ILC has a long-time prognosis different from that of invasive ductal carcinoma, (IDC) remains controversial. Purpose: To investigate the excess mortality rate ratio (EMRR) of patients with ILC and IDC and to correlate survival with clinical parameters in a large population-based cohort. Material and methods: From 1989 through 2006, we identified 17,481 patients diagnosed with IDC (n = 14,583) or ILC (n = 2898), younger than 76 years from two Swedish Regional Cancer Registries. Relative survival (RS) during 20 years of follow up was analysed. Results: ILC was significantly associated with older age, larger tumours, ER positivity and well differentiated tumours. We noticed an improved survival for patients with ILC during the first five years, excess mortality rate ratio (EMRR) 0.64 (CI 95 % 0.53-0.77). This was shifted to a significant decreased survival 10-15 years after diagnosis (EMRR 1.49, CI 95 % 1.16-1.93). After 20 years the relative survival rates were similar, 0.72 for ILC and 0.73 for IDC. Conclusions: During the first five years after surgery, the EMRR was lower for patients with ILC as compared to patients with IDC, but during the years 10-15 after surgery, we observed an increased EMRR for patients with ILC as compared to IDC. These EMRR between ILC and IDC were statistically significant but the absolute difference in excess mortality between the two groups was small. (c) 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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8.
  • Fransson, Per, et al. (författare)
  • Ultra-hypofractionated versus conventionally fractionated radiotherapy for prostate cancer (HYPO-RT-PC) : patient-reported quality-of-life outcomes of a randomised, controlled, non-inferiority, phase 3 trial
  • 2021
  • Ingår i: The Lancet Oncology. - : Elsevier. - 1470-2045 .- 1474-5488. ; 22:2, s. 235-245
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: The HYPO-RT-PC trial compared conventionally fractionated radiotherapy with ultra-hypofractionated radiotherapy in patients with localised prostate cancer. Ultra-hypofractionation was non-inferior to conventional fractionation regarding 5-year failure-free survival and toxicity. We aimed to assess whether patient-reported quality of life (QOL) differs between conventional fractionation and ultra-hypofractionation up to 6 years after treatment in the HYPO-RT-PC trial.METHODS: HYPO-RT-PC is a multicentre, open-label, randomised, controlled, non-inferiority, phase 3 trial done in 12 centres (seven university hospitals and five county hospitals) in Sweden and Denmark. Inclusion criteria were histologically verified intermediate-to-high-risk prostate cancer (defined as T1c-T3a with one or two of the following risk factors: stage T3a; Gleason score ≥7; and prostate-specific antigen 10-20 ng/mL with no evidence of lymph node involvement or distant metastases), age up to 75 years, and WHO performance status 0-2. Participants were randomly assigned (1:1) to conventional fractionation (78·0 Gy in 39 fractions, 5 days per week for 8 weeks) or ultra-hypofractionation (42·7 Gy in seven fractions, 3 days per week for 2·5 weeks) via a minimisation algorithm with stratification by trial centre, T-stage, Gleason score, and prostate-specific antigen. QOL was measured using the validated Prostate Cancer Symptom Scale (PCSS) and European Organization for Research and Treatment of Cancer Quality-of-Life Questionnaire (EORTC QLQ-C30) at baseline, the end of radiotherapy, months 3, 6, 12, and 24 after radiotherapy, every other year thereafter up to 10 years, and at 15 years. The primary endpoint (failure-free survival) has been reported elsewhere. Here we report QOL, a secondary endpoint analysed in the per-protocol population, up to 6 years after radiotherapy. The HYPO-RT-PC trial is registered with the ISRCTN registry, ISRCTN45905321.FINDINGS: Between July 1, 2005, and Nov 4, 2015, 1200 patients were enrolled and 1180 were randomly assigned (conventional fractionation n=591, ultra-hypofractionation n=589); 1165 patients (conventional fractionation n=582, ultra-hypofractionation n=583) were included in this QOL analysis. 158 (71%) of 223 patients in the conventional fractionation group and 146 (66%) of 220 in the ultra-hypofractionation group completed questionnaires at 6 years. The median follow-up was 48 months (IQR 25-72). In seven of ten bowel symptoms or problems the proportion of patients with clinically relevant deteriorations at the end of radiotherapy was significantly higher in the ultra-hypofractionation group than in the conventional fractionation group (stool frequency [p<0·0001], rush to toilet [p=0·0013], flatulence [p=0·0013], bowel cramp [p<0·0001], mucus [p=0·0014], blood in stool [p<0·0001], and limitation in daily activity [p=0·0014]). There were no statistically significant differences in the proportions of patients with clinically relevant acute urinary symptoms or problems (total 14 items) and sexual functioning between the two treatment groups at end of radiotherapy. Thereafter, there were no clinically relevant differences in urinary, bowel, or sexual functioning between the groups. At the 6-year follow-up there was no difference in the incidence of clinically relevant deterioration between the groups for overall urinary bother (43 [33%] of 132 for conventional fractionation vs 33 [28%] of 120 for ultra-hypofractionation; mean difference 5·1% [95% CI -4·4 to 14·6]; p=0·38), overall bowel bother (43 [33%] of 129 vs 34 [28%] of 123; 5·7% [-3·8 to 15·2]; p=0·33), overall sexual bother (75 [60%] of 126 vs 59 [50%] of 117; 9·1% [-1·4 to 19·6]; p=0·15), or global health/QOL (56 [42%] of 134 vs 46 [37%] of 125; 5·0% [-5·0 to 15·0]; p=0·41).INTERPRETATION: Although acute toxicity was higher for ultra-hypofractionation than conventional fractionation, this long-term patient-reported QOL analysis shows that ultra-hypofractionation was as well tolerated as conventional fractionation up to 6 years after completion of treatment. These findings support the use of ultra-hypofractionation radiotherapy for intermediate-to-high-risk prostate cancer.
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9.
  • Glise Sandblad, Katarina, 1982, et al. (författare)
  • Prevalence of Cancer in Patients with Venous Thromboembolism: A Retrospective Nationwide Case-Control Study in Sweden.
  • 2023
  • Ingår i: Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis. - : SAGE Publications. - 1938-2723. ; 29
  • Tidskriftsartikel (refereegranskat)abstract
    • Cancer is a risk factor for venous thromboembolism (VTE). We aimed to define sex-specific risk of preceding cancer in patients with a first-time VTE by conducting a nationwide Swedish registry-based study including 298172 patients with VTE and 1185079 matched controls. This included 44685 patients with a diagnosis of cancer at/or within 1 year before a VTE diagnosis. Female patients with VTE had a higher multivariable adjusted odds ratios of preceding cancer than male patients with VTE (5.5 [99% confidence interval 5.4-5.7] vs 3.9 [3.8-4.0]). The highest risk of cancer in patients with VTE were found for pancreatic cancer (women: 19.6 [15.8-24.4]; men: 17.2 [13.7-21.6]) and brain cancer (women: 17.4 [12.9-23.4]; men: 17.5 [13.8-22.2]). Weak associations were seen between VTE and bladder/urothelial cancer (women: 1.31 [1.12-1.53]; men: 1.34 [1.23-1.47]), prostate cancer (men: 2.17 [2.07-2.27]), malignant melanoma (women: 2.51 [2.07-3.05]; men: 2.67 [2.23-3.18]), and kidney cancer (women: 3.20 [2.49-4.11]; men: 3.33 [2.79-4.07]). In conclusion, associations with VTE were weak for bladder/urothelial cancer and kidney cancer, and strong for pancreatic, brain, and biliary cancers.
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10.
  • Hellsten, Sofie, et al. (författare)
  • Hur påverkas mark-, grund- och ytvatten vid en skogsavverkning? - Fallstudie Storskogen i Västra Götaland
  • 2021
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • En av de högsta halterna av metylkvicksilver som uppmätts i skogsmiljö i Sverige noterades i det avrinnande vattnet från ett avverkat område i Sydvästra Sverige. Framför allt förekom mycket höga halter av metylkvick-silver vid låg vattenföring sommartid. Avverkningen påverkade även försurningsparametrar, nitrathalter och löst organiskt kol. Exempelvis ökade uttransporten av kväve kraftigt andra året efter avverkningen. Avverkningen ledde också till en nästan fördubblad förlust av baskatjoner (Ca2+, Mg2+, K+ och Na+) från avrinningsområdet.
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