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Träfflista för sökning "WFRF:(van de Velde C. J. H.) srt2:(2010-2014)"

Sökning: WFRF:(van de Velde C. J. H.) > (2010-2014)

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2.
  • Schmoll, H. J., et al. (författare)
  • ESMO Consensus Guidelines for management of patients with colon and rectal cancer. A personalized approach to clinical decision making
  • 2012
  • Ingår i: Annals of Oncology. - : Elsevier BV. - 0923-7534 .- 1569-8041. ; 23:10, s. 2479-2516
  • Tidskriftsartikel (refereegranskat)abstract
    • Colorectal cancer (CRC) is the most common tumour type in both sexes combined in Western countries. Although screening programmes including the implementation of faecal occult blood test and colonoscopy might be able to reduce mortality by removing precursor lesions and by making diagnosis at an earlier stage, the burden of disease and mortality is still high. Improvement of diagnostic and treatment options increased staging accuracy, functional outcome for early stages as well as survival. Although high quality surgery is still the mainstay of curative treatment, the management of CRC must be a multi-modal approach performed by an experienced multi-disciplinary expert team. Optimal choice of the individual treatment modality according to disease localization and extent, tumour biology and patient factors is able to maintain quality of life, enables long-term survival and even cure in selected patients by a combination of chemotherapy and surgery. Treatment decisions must be based on the available evidence, which has been the basis for this consensus conference-based guideline delivering a clear proposal for diagnostic and treatment measures in each stage of rectal and colon cancer and the individual clinical situations. This ESMO guideline is recommended to be used as the basis for treatment and management decisions.
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3.
  • de Kruijf, E M, et al. (författare)
  • The prognostic role of TGF-β signaling pathway in breast cancer patients
  • 2013
  • Ingår i: Annals of Oncology. - : Elsevier BV. - 0923-7534 .- 1569-8041. ; 24:2, s. 384-390
  • Tidskriftsartikel (refereegranskat)abstract
    • BackgroundThe transforming growth factor-β (TGF-β) pathway has dual effects on tumor growth. Seemingly, discordant results have been published on the relation between TGF-β signaling markers and prognosis in breast cancer. Improved prognostic information for breast cancer patients might be obtained by assessing interactions among TGF-β signaling biomarkers.Patients and methodsThe expression of nuclear Smad4, nuclear phosphorylated-Smad2 (p-Smad2), and the membranous expression of TGF-β receptors I and II (TβRI and TβRII) was determined on a tissue microarray of 574 breast carcinomas. Tumors were stratified according to the Smad4 expression in combination with p-Smad2 expression or Smad4 in combination with the expression of both TGF-β receptors.ResultsTumors with high expression of TβRII, TβRI and TβRII, and p-Smad2 (P = 0.018, 0.005, and 0.022, respectively), and low expression of Smad4 (P = 0.005) had an unfavorable prognosis concerning progression-free survival. Low Smad4 expression combined with high p-Smad2 expression or low expression of Smad4 combined with high expression of both TGF-β receptors displayed an increased hazard ratio of 3.04 [95% confidence interval (CI) 1.390-6.658] and 2.20 (95% CI 1.464-3.307), respectively, for disease relapse.ConclusionsCombining TGF-β biomarkers provides prognostic information for patients with stage I-III breast cancer. This can identify patients at increased risk for disease recurrence that might therefore be candidates for additional treatment.
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5.
  • van Gijn, W., et al. (författare)
  • The EURECCA project : Data items scored by European colorectal cancer audit registries
  • 2012
  • Ingår i: European Journal of Surgical Oncology. - : Elsevier BV. - 0748-7983 .- 1532-2157. ; 38:6, s. 467-471
  • Tidskriftsartikel (refereegranskat)abstract
    • Aims: The EURECCA (European Registration of Cancer Care) consortium is currently formed by nine independently founded national colorectal audit registrations, of which most already run for many years. The cumulative experience of EURECCA's participants could be used to identify a 'core dataset' that covers all important aspects needed for high quality auditing and at the same time lacking needless data items that only consumes administrative effort. The aim of this study is to compare the data items used by the nine registries participating in EURECCA to identify a core dataset and explore options for future research. Methods: All colorectal outcome registrations participating in the EURECCA project were asked to supply a list with all the data items they score. Items were scored 'present' if they appeared literally in a registration or in case they could he calculated using other items in the same registration. The definition of a 'shared data item' was that at least eight of the nine participating registries scored the item. Results: The number of registered data items varied between 254 (Belgium) and 83 (Norway). Among the 45 variables were patient data, data about preoperative staging, surgical treatment, pre- or postoperative radio- and/or chemotherapy, and follow-up. Items about tumour recurrence or quality of life were scored too little to become shared data items. Conclusions: A total of 45 items were collected by 8 or more of the participating registries and subsequently met the criteria for a shared data item.
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6.
  • Dikken, J. L., et al. (författare)
  • Differences in outcomes of oesophageal and gastric cancer surgery across Europe
  • 2013
  • Ingår i: British Journal of Surgery. - : Oxford University Press (OUP). - 1365-2168 .- 0007-1323. ; 100:1, s. 83-94
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: In several European countries, centralization of oesophagogastric cancer surgery has been realized and clinical audits initiated. The present study was designed to evaluate differences in resection rates, outcomes and annual hospital volumes between these countries, and to analyse the relationship between hospital volume and outcomes. Methods: National data were obtained from cancer registries or clinical audits in the Netherlands, Sweden, Denmark and England. Differences in outcomes were analysed between countries and between hospital volume categories, adjusting for available case-mix factors. Results: Between 2004 and 2009, 10 854 oesophagectomies and 9010 gastrectomies were registered. Resection rates in England were 18.2 and 21.6 per cent for oesophageal and gastric cancer respectively, compared with 28.529.9 and 41.441.9 per cent in the Netherlands and Denmark (P < 0.001). The adjusted 30-day mortality rate after oesophagectomy was lowest in Sweden (1.9 per cent). After gastrectomy, the adjusted 30-day mortality rate was significantly higher in the Netherlands (6.9 per cent) than in Sweden (3.5 per cent; P = 0.017) and Denmark (4.3 per cent; P = 0.029). Increasing hospital volume was associated with a lower 30-day mortality rate after oesophagectomy (odds ratio 0.55 (95 per cent confidence interval 0.42 to 0.72) for at least 41 versus 110 procedures per year) and gastrectomy (odds ratio 0.64 (0.41 to 0.99) for at least 21 versus 110 procedures per year). Conclusion: Hospitals performing larger numbers of oesophagogastric cancer resections had a lower 30-day mortality rate. Differences in outcomes between several European countries could not be explained by differences in hospital volumes. To understand these differences in outcomes and resection rates, with reliable case-mix adjustments, a uniform European upper gastrointestinal cancer audit with recording of standardized data is warranted. Copyright (c) 2012 British Journal of Surgery Society Ltd. Published by John Wiley & Sons, Ltd.
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7.
  • van de Velde, C. J. H., et al. (författare)
  • Experts reviews of the multidisciplinary consensus conference colon and rectal cancer 2012 : Science, opinions and experiences from the experts of surgery
  • 2014
  • Ingår i: European Journal of Surgical Oncology. - : Elsevier BV. - 0748-7983 .- 1532-2157. ; 40:4, s. 454-468
  • Tidskriftsartikel (refereegranskat)abstract
    • The first multidisciplinary consensus conference on colon and rectal cancer was held in December 2012, achieving a majority of consensus for diagnostic and treatment decisions using the Delphi Method. This article will give a critical appraisal of the topics discussed during the meeting and in the consensus document by well-known leaders in surgery that were involved in this multidisciplinary consensus process. Scientific evidence, experience and opinions are collected to support multidisciplinary teams (MDT) with arguments for medical decision-making in diagnosis, staging and treatment strategies for patients with colon or rectal cancer. Surgery is the cornerstone curative treatment for colon and rectal cancer. Standardizing treatment is an effective instrument to improve outcome of multidisciplinary cancer care for patients with colon and rectal cancer. In this article, a review of the following focuses; Perioperative care, age and colorectal surgery, obstructive colorectal cancer, stenting, surgical anatomical considerations, total mesorectal excision (TME) surgery and training, surgical considerations for locally advanced rectal cancer (LARC) and local recurrent rectal cancer (LRRC), surgery in stage IV colorectal cancer, definitions of quality of surgery, transanal endoscopic microsurgery (TEM), laparoscopic colon and rectal surgery, preoperative radiotherapy and chemoradiotherapy, and how about functional outcome after surgery?
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  • van der Velde, Y., et al. (författare)
  • Improving catchment discharge predictions by inferring flow route contributions from a nested-scale monitoring and model setup
  • 2011
  • Ingår i: Hydrology and Earth System Sciences. - : Copernicus GmbH. - 1027-5606 .- 1607-7938. ; 15, s. 913-930
  • Tidskriftsartikel (refereegranskat)abstract
    • Identifying effective measures to reduce nutrient loads of headwaters in lowland catchments requires a thorough understanding of flow routes of water and nutrients. In this paper we assess the value of nested-scale discharge and groundwater level measurements for the estimation of flow route volumes and for predictions of catchment discharge. In order to relate field-site measurements to the catchment-scale an upscaling approach is introduced that assumes that scale differences in flow route fluxes originate from differences in the relationship between groundwater storage and the spatial structure of the groundwater table. This relationship is characterized by the Groundwater Depth Distribution (GDD) curve that relates spatial variation in groundwater depths to the average groundwater depth. The GDD-curve was measured for a single field site (0.009 km(2)) and simple process descriptions were applied to relate groundwater levels to flow route discharges. This parsimonious model could accurately describe observed storage, tube drain discharge, overland flow and groundwater flow simultaneously with Nash-Sutcliff coefficients exceeding 0.8. A probabilistic Monte Carlo approach was applied to upscale field-site measurements to catchment scales by inferring scale-specific GDD-curves from the hydrographs of two nested catchments (0.4 and 6.5 km(2)). The estimated contribution of tube drain effluent (a dominant source for nitrates) decreased with increasing scale from 76-79% at the field-site to 34-61% and 25-50% for both catchment scales. These results were validated by demonstrating that a model conditioned on nested-scale measurements improves simulations of nitrate loads and predictions of extreme discharges during validation periods compared to a model that was conditioned on catchment discharge only.
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10.
  • Van den Broek, C. B. M., et al. (författare)
  • Differences in pre-operative treatment for rectal cancer between Norway, Sweden, Denmark, Belgium and the Netherlands
  • 2014
  • Ingår i: European Journal of Surgical Oncology. - : Elsevier BV. - 0748-7983 .- 1532-2157. ; 40:12, s. 1789-1796
  • Tidskriftsartikel (refereegranskat)abstract
    • Several studies have shown remarkable differences in colorectal cancer survival across Europe. Most of these studies lacked information about stage and treatment. In this study we compared short-term survival as well as differences in tumour stage and treatment strategies between five European countries: Norway, Sweden, Denmark, Belgium, and the Netherlands. For this retrospective cohort study all patients aged 18 years or older and operated on adenocarcinoma of the rectum without distant metastases and diagnosed in 2008 and 2009 were selected in national audit registries from Norway, Sweden, Denmark, Belgium, and the Netherlands. Differences in pre-operative treatment between the countries were compared using univariable and multivariable logistic regression. One year relative survival and one year relative excess risk of death (RER) were compared between the five countries. Large variation in the use of preoperative radiotherapy and chemoradiation was found between the countries. Even though, there was little variation in relative survival between the countries, except Sweden, which had a significant better one year RER of death among the elderly patients after adjustment. The differences in survival are expected to be caused by differences in pen-operative care, selection of patients, and especially management of elderly patients. The effects of preoperative treatment are expected to be seen on long term follow-up.
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