117 research outputs found

    La mortalidad por cáncer en las comarcas de cataluña (1983–1989)

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    ResumenObjectivosComparar la mortalidad intercomarcal de Cataluña para algunos de los tumores malignos más frecuentes.MetodologíaSe han analizado los datos globales y de cinco localizaciones tumorales específicas relativos a la mortalidad por cáncer de un período de siete años (1983-1989). Se han obtenido las tasas brutas de mortalidad y las específicas para cada localización analizada. La comparación intercomarcal se ha realizado ajustando las tasas por edad mediante el método directo, tomando como referencia la población de Cataluña de 1986. Se han calculado las razones comparativas de mortalidad (RCM) de cada comarca respecto a Cataluña.ResultadosLa mortalidad global por cáncer es más alta en la comarca del Barcelonés para los hombres y en la de Osona para las mujeres. La RCM de los hombres del Barcelonés es la más alta para el cáncer de tráquea, bronquios y pulmón; la de la comarca del Solsonés es la más alta para el cáncer de estómago, y la de la Cerdanya es la más alta para el cáncer de colon y recto. Entre las mujeres, la RCM más alta para el cáncer de tráquea, bronquios y pulmón la presenta la comarca del Montsiá, para el cáncer de mama la del Baix Empordá y para el cáncer de estómago la del Alt Urgell.ConclusionesEl análisis comparativo de la mortalidad por cáncer, por comarcas y por sexos, permite observar importantes diferencias en la manifestación del fenómeno, lo cual puede orientar de manera más específica las políticas de control del cáncer y de investigación a desarrollar en cada territorio.SummaryObjectivesTo compare mortality among counties (comarques) in Catalonia, Spain for the most frequent malignant tumors.MethodsOverall mortality data and for five specific tumor sites were analyzed for a five-year period (1983-1989). Crude and site-specific mortality rates were computed. The comparison between counties was adjusted for the 1986 population of Catalonia using the direct method. Comparative mortality ratios (CMR) were obtained for each county with respect to Catalonia.ResultsOverall cancer mortality was higher in the Barcelonés for men and in Osona form women. The CMR for men in the Barcelonés was the highest for cancer of the trachea, bronchi and lungs; the CMR in Solsonés was the highest for stomach cancer, while in Cerdanya it was the highest for colorectal cancer. Among women, the highest CMR for cancer of the trachea, bronchi and lungs was in Montsiá, whereas for breast cancer it was Baix Empordá, and Alt Urgell for stomach cancer.ConclusionsComparative analyses of cancer mortality by county in Catalonia and sex underscores differences in its distribution, allowing the orientation of cancer control policies and research to be developed in each geographical area

    Sexual Function in Women with Breast Cancer : An Evidence Map of Observational Studies

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    Breast cancer (BC) is the leading cause of cancer in women, and has implications for sexual function (SF). In this study, we used an evidence map to identify, describe, and organise the current available evidence regarding SF in women with BC. We searched the MEDLINE, PsycINFO, and CINAHL databases for observational studies assessing SF in women with BC published in English, Spanish, Portuguese, and French between 2000 and 2021 (sample ≥ 50 women). Of the 64 included studies (13,257 women with BC), 58 were published since 2010. Women who were married, partnered, or in relationships represented 74.1% of the entire sample. Only a single study was conducted on women representing a sexual minority. We identified 22 assessment instruments and 40 sexual dysfunction (SdF) domains. The number of publications on SF in women with BC has increased in the last 10 years, but still remains low. Some groups of women are underrepresented, and some SdF domains are underdiagnosed, with the assessment instrument used affecting which domains are studied. Women with BC need to be better screened, as their quality of life (QoL) is affected by Sd

    Assessing the methodological strengths and limitations of the Spanish Society of Medical Oncology (SEOM) guidelines : a critical appraisal using AGREE II and AGREE-REX tool

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    Altres ajuts: acords transformatius de la UABThe Spanish Society of Medical Oncology (SEOM) has provided open-access guidelines for cancer since 2014. However, no independent assessment of their quality has been conducted to date. This study aimed to critically evaluate the quality of SEOM guidelines on cancer treatment. Appraisal of Guidelines for Research and Evaluation II (AGREE II) and AGREE-REX tool was used to evaluate the qualities of the guidelines. We assessed 33 guidelines, with 84.8% rated as "high quality". The highest median standardized scores (96.3) were observed in the domain "clarity of presentation", whereas "applicability" was distinctively low (31.4), with only one guideline scoring above 60%. SEOM guidelines did not include the views and preferences of the target population, nor did specify updating methods. Although developed with acceptable methodological rigor, SEOM guidelines could be improved in the future, particularly in terms of clinical applicability and patient perspectives

    Systematic mapping review of interventions to prevent blood loss, infection and relapse in orthognathic surgery

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    This systematic mapping review aims to identify, describe, and organize the currently available evidence in systematic reviews (SR) and primary studies regarding orthognathic surgery (OS) co-interventions and surgical modalities, focusing on the outcomes blood loss, infection and relapse. A comprehensive search strategy was performed to identify all SRs, randomized controlled trials and observational studies that evaluate surgical modalities and perioperative co-interventions in OS that evaluate the outcomes blood loss, infection and relapse, regardless of language or publication date. Searches were conducted in MEDLINE, EMBASE, Epistemonikos, Lilacs, Web of Science, and CENTRAL. In addition, grey literature was screened. 27 SRs and 150 primary studies fulfilled the inclusion criteria, 91 from SRs, and 59 from our search strategy. Overall, the quality of the SRs was graded as ?Critically low,? and only two SRs were rated as ?High? quality. 11 PICO questions were extracted from SRs and 31 from primary studies, which focused on osteosynthesis methods, surgical cutting devices, use of antibiotics, and induced hypotension. In addition, evidence bubble maps for each outcome were created to analyze in a visual manner the existing evidence. Future primary and secondary high-quality research should be addressed focused on the eight knowledge gaps identified in this mapping review. We concluded that the evidence mapping approach is a practical methodology for organizing the current evidence and identifying knowledge gaps in OS, helping to reduce research waste and canalize future efforts in developing studies for unsolved questions

    Description of the Protocols for Randomized Controlled Trials on Cancer Drugs Conducted in Spain (1999-2003)

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    To describe the characteristics of randomized controlled clinical trials (RCT) on cancer drugs conducted in Spain between 1999 and 2003 based on their protocols. We conducted an observational retrospective cohort study to identify the protocols of RCTs on cancer drugs authorized by the Agencia Española del Medicamento y Productos Sanitarios (AEMPS) (Spanish Agency for Medicines and Medical Devices) during 1999-2003. A descriptive analysis was completed and the association between variables based on the study setting and sponsorship were assessed. We identified a total of 303 protocols, which included 176,835 potentially eligible patients. Three-quarter of the studies were internationally-based, 61.7% were phase III, and 76.2% were sponsored by pharmaceutical companies. The most frequently assessed outcomes were response rate (24.7%), overall survival (20.7%), and progression-free survival (14.5%). Of all protocols, 10.6% intended to include more than 1000 patients (mean: 2442, SD: 2724). Compared with their national counterparts, internationally-based studies were significantly larger (p<0.001) and were more likely to implement centralized randomization (p<0.001), blinding of the intervention (p<0.001), and survival as primary outcome (p<0.001). Additionally, most internationally-based studies were sponsored by pharmaceutical companies (p<0.01). In a high percentage of protocols, the available information was not explicit enough to assess the validity of each trial. Compared to other European countries, the proportion of Spanish cancer drugs protocols registered at (7%) was lower. RCTs on cancer drugs conducted in Spain between 1999 and 2003 were more likely to be promoted by pharmaceutical companies rather than by non-profit national groups. The former were more often part of international studies, which generally had better methodological quality than national ones. There are some worldwide on-going initiatives that aim to increase the transparency and quality of future research

    Risk-of-bias assessment of the randomized clinical trials and systematic reviews on surgical treatments for breast cancer-related lymphedema : A mapping review

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    Altres ajuts: acords transformatius de la UABBreast cancer treatment is the principal cause of lymphedema in the upper extremities. Breast cancer-related lymphedema (BCRL) treatments were previously based on conservative therapy; surgical treatments are alternative options that could be highly beneficial, especially for patients who are not responsive to conservative therapy. The main aim of this study was to describe and critically assess the risk of bias of randomized clinical trials (RCTs) and systematic reviews (SRs) on surgical treatment for BCRL. We conducted an evidence mapping review according to the methodology proposed by Global Evidence Mapping (GEM). An update was done for our previous systematic search in MEDLINE, EMBASE, CENTRAL (Cochrane), and Epistemonikos from the year 2000 onward. We assessed the risk of bias for the RCTs and SRs using the RoB-2 and ROBIS tools, respectively. Two surgical RCTs and eight SRs were found among the 47 surgical studies that met the eligibility criteria. The overall risk-of-bias assessments of these studies were rated as some concerns (six outcomes) and high risk (three outcomes) for the measured outcomes among the RCTs and as a high risk of bias (five studies) and low risk (three studies) for the included SRs. The overall evidence in the literature on surgical treatment for BCRL is low, as there are few published RCTs and SRs, and the risk-of-bias assessment for the majority was rated as high risk of bias or with some concerns. High-quality studies are needed to improve evidence-based decision-making by surgeons and patients

    Evidence mapping based on systematic reviews of therapeutic interventions for soft tissue sarcomas

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    Soft tissue sarcomas are a heterogeneous group of rare tumours of mesenchymal origin. Evidence mapping is one of the most didactic and friendly approaches to organise and summarise the range of research activity in broad topic fields. The objective of this evidence mapping is to identify, describe and organise the current available evidence about therapeutic interventions on soft tissues sarcomas. We followed the methodology of global evidence mapping. We performed a search of the PubMed, EMBASE, The Cochrane Library and Epistemonikos to identify systematic reviews (SRs) with or without meta-analyses published between 1990 and March 2016. Two independent literature reviewers assessed eligibility and extracted data. Methodological quality of the included systematic reviews was assessed using AMSTAR. We organised the results according to identified PICO questions and used tables and a bubble plot to display the results. The map is based on 24 SRs that met eligibility criteria and included 66 individual studies. Three-quarters were either observational or uncontrolled clinical trials. The quality of the included SRs was in general moderate or high. We identified 64 PICO questions from them. The corresponding results mostly favoured the intervention arm. This evidence mapping was built on the basis of SRs, which mostly included non-experimental studies and were qualified by the AMSTAR tool as of moderate quality. The evidence mapping created from PICO questions is a useful approach to describe complex and huge clinical topics through graphical media and orientate further research to fulfil the existing gaps. However, it is important to delimitate the steps of the evidence mapping in a pre-established protocol

    Prevalence study of intermittent hormonal therapy of Prostate Cancer patients in Spain

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    Background: Although intermittent androgen deprivation therapy was introduced many years ago to improve patients' quality of life with the same carcinologic efficiency as continuous hormonal therapy, recent data suggest that intermittency could be underutilised. This study aims to estimate the prevalence of prostate cancer patients receiving intermittent androgen deprivation therapy in Spain. Methods: A retrospective, longitudinal study was conducted using electronic drug dispensation data from four Spanish autonomous communities, which encompass 17.23 million inhabitants (36.22% of the total population in Spain). We estimated intermittent androgen therapy use (%IAD) and the prevalence of patients under intermittent androgen therapy in reference to the total number of PC patients using hormonal therapy (P IAD) and stratified by region. Other outcome variables included the pharmaceutical forms dispensed and the total direct annual expenditure on androgen deprivation therapy-associated medications. Results: A total of 863,005 dispensations corresponding to a total of 65,752 men were identified, treated with either luteinizing hormone-releasing hormone (LHRH) analogues (353,162) administered alone or in combination with anti-androgens (509,843). Overall, the mean (±SD) age of the patients was 76.9 (±10.4) years. Results revealed that the mean annual P IAD along the study was 6.6% in the total population studied, and the overall %IAD during the five-year study period was 5.6%. The mean cost of hormonal therapy per year was 25 million euros for LHRH analogues and 6.3 million euros for anti-androgens. Conclusions: Few prostate cancer patients in Spain use the intermittent androgen deprivation therapy suggesting underutilization of a perfectly valid option for a significant proportion of patients, missing the opportunity to improve their quality of life and to reduce costs for the National Health Service with comparable overall survival rates than continuous therapy.</p

    Comparative analysis of systemic oncological treatments and best supportive care for advanced gastresophageal cancer : A comprehensive scoping review and evidence map

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    Altres ajuts: acords transformatius de la UABTo identify, describe, and organize the available evidence regarding systemic oncological treatments compared to best supportive care (BSC) for advanced gastresophageal cancer. We conducted a thorough search across MEDLINE (PubMed), EMbase (Ovid), The Cochrane Library, Epistemonikos, PROSPERO, and Clinicaltrials.gov. Our inclusion criteria encompassed systematic reviews, randomized controlled trials, quasi-experimental and observational studies involving patients with advanced esophageal or gastric cancer receiving chemotherapy, immunotherapy or biological/targeted therapy compared to BSC. The outcomes included survival, quality of life, functional status, toxicity, and quality of end-of-life care. We included and mapped 72 studies, comprising SRs, experimental and observational designs, 12 on esophageal cancer, 51 on gastric cancer, and 10 both locations. Most compared schemes including chemotherapy (47 studies), but did not report therapeutic lines. Moreover, BSC as a control arm was poorly defined, including integral support and placebo. Data favor the use of systemic oncological treatments in survival outcomes and BSC in toxicity. Data for outcomes including quality of life, functional status, and quality of end-of-life care were limited. We found sundry evidence gaps specifically in assessing new treatments such as immunotherapy and important outcomes such as functional status, symptoms control, hospital admissions, and the quality of end-life care for all the treatments. There are important evidence gaps regarding new for patients with advanced gastresophageal cancer and the effect of systemic oncological treatments on important patient-centered outcomes beyond survival. Future research should clearly describe the population included, specifying previous treatments and considering therapeutic, and consider all patient-centered outcomes. Otherwise, it will be complex to apply research results into practice

    Systemic Oncological Treatments versus Supportive Care for Patients with Advanced Hepatobiliary Cancers : An Overview of Systematic Reviews

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    Altres ajuts: This study is funded through a grant from Instituto de Salud Carlos III (PI18/00034), co-financed by funds from the European Regional Development Fund.Hepatobiliary cancers (that include hepatocellular carcinoma, intrahepatic or extrahepatic cholangiocarcinoma and gallbladder cancer) are usually treated with systemic oncological treatments (i.e., chemotherapy, immunotherapy and biological or targeted therapies) mainly due to their improvement in survival. However, the trade-off between these therapies and usual practice supportive care is not clear, and other outcomes beyond survival should be considered in advanced stages, such as quality of life or symptom control. The present study is part of a wider project aiming to conduct broad evidence syntheses assessing the effects of systemic oncological treatments versus usual practice supportive care for patients with advanced non-intestinal digestive cancers. We performed an overview of systematic reviews assessing the effects of systemic oncological treatments versus usual practice supportive care for patients with primary advanced hepatobiliary cancer. We found evidence that for these patients (specifically for advanced hepatocellular carcinoma), systemic oncological treatments tend to improve survival at the expense of greater toxicity. Much of systematic reviews included was of low quality and highly overlapped. Nevertheless, the evidence we found failed to report other important outcomes that could be critical for decision making, including quality of life or symptom control. Future research assessing these patient-important outcomes is needed. Background: The trade-off between systemic oncological treatments (SOTs) and UPSC in patients with primary advanced hepatobiliary cancers (HBCs) is not clear in terms of patient-centred outcomes beyond survival. This overview aims to assess the effectiveness of SOTs (chemotherapy, immunotherapy and targeted/biological therapies) versus UPSC in advanced HBCs. Methods: We searched for systematic reviews (SRs) in PubMed, EMBASE, the Cochrane Library, Epistemonikos and PROSPERO. Two authors assessed eligibility independently and performed data extraction. We estimated the quality of SRs and the overlap of primary studies, performed de novo meta-analyses and assessed the certainty of evidence for each outcome. Results: We included 18 SRs, most of which were of low quality and highly overlapped. For advanced hepatocellular carcinoma, SOTs showed better overall survival (HR = 0.62, 95% CI 0.55-0.77, high certainty for first-line therapy; HR = 0.85, 95% CI 0.79-0.92, moderate certainty for second-line therapy) with higher toxicity (RR = 1.18, 95% CI 0.87-1.60, very low certainty for first-line therapy; RR = 1.58, 95% CI 1.28-1.96, low certainty for second-line therapy). Survival was also better for SOTs in advanced gallbladder cancer. No outcomes beyond survival and toxicity could be meta-analysed. Conclusion: SOTs in advanced HBCs tend to improve survival at the expense of greater toxicity. Future research should inform other patient-important outcomes to guide clinical decision making
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