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617 result(s) for "David Parkin"
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Current Approaches to the Management of Patients with Endometrial Cancer
The incidence of endometrial cancer (EC) is rising and healthcare professionals need to be informed about the latest data on the constant developments in the field of its management. With particular interest in the classification and management of EC, we surveyed current literature, national and international data, and guidelines, as well as the latest studies to present the most recent data regarding the management of EC. It became evident that despite the consensus on low-risk EC, there are still controversies surrounding the management of high-risk EC, especially regarding the role of sentinel lymph node biopsy (SLNB). Our aim is to present the old and new perspectives in the management of EC, the different available surgical routes, the possible desire for fertility preservation, the role of adjuvant therapies and the focus on the advantages and the limitations of the implementation of SLNB in therapeutic strategies. It became evident throughout our search and based on literature data that minimally invasive surgery (MIS) leads to satisfying outcomes, thus becoming gradually the preferred route of surgery, while SLNB could provide essential information and guidance about the overall management needed in cases of both low-risk and high-risk EC.
Use of new imaging techniques to predict tumour response to therapy
Imaging of tumour response to therapy has steadily evolved over the past few years as a result of advances in existing imaging modalities and the introduction of new functional techniques. The use of imaging as an early surrogate biomarker of response is appealing, because it might allow for a window of opportunity during which treatment regimens can be tailored accordingly, depending on the expected response. The clinical effect of this would ultimately result in a reduction in morbidity and undue costs. The aim of this review is to describe the potential of various new imaging techniques as biomarkers of early tumour response. We have reviewed the literature and identified studies that have assessed these techniques, such as diffusion-weighted MRI, dynamic contrast-enhanced MRI, magnetic resonance spectroscopy, and 18-fluorodeoxyglucose-PET as early response indicators, and highlight the current clinical awareness of their use.
Experience-based health state valuation using the EQ VAS: a register-based study of the EQ-5D-3L among nine patient groups in Sweden
Background The EQ VAS component of the EQ-5D questionnaire has been used to assess patients’ valuation of their own health besides its use for self-reporting of overall health status. The objective of the present study was to identify patients’ valuation of EQ-5D-3L health states using the EQ VAS in different patient groups over time and in comparison to the general population. Methods Data were obtained from patients from nine National Quality Registers ( n  = 172,070 patients) at baseline and at 1-year follow-up and compared with data from the general population ( n  = 41,761 participants). The correlation between EQ VAS scores and EQ-5D-3L index based on the Swedish experience-based VAS value set was assessed. Ordinary least squares (OLS) regression models were used to determine the association between EQ-5D-3L dimensions and EQ VAS valuation. Results EQ VAS scores showed consistency with severity of health states both at baseline and at 1-year follow-up in the nine selected EQ-5D-3L health states. The regression models showed mostly consistent decrements by severity levels in each dimension at both time points and similar to the general population. The dimension mainly associated with inconsistency was the self-care severity level three. Problems in the anxiety/depression dimension had the largest impact on overall health status in most of the patient groups and the general population. Conclusion The study has demonstrated the important role EQ VAS can play in revealing patients’ valuation of their health and showed the variation in valuation of EQ-5D-3L dimensions and levels of severity across different patient groups.
Holistic Anthropology
Given the broad reach of anthropology as the science of humankind, there are times when the subject fragments into specialisms and times when there is rapprochement. Rather than just seeing them as reactions to each other, it is perhaps better to say that both tendencies co-exist and that it is very much a matter of perspective as to which is dominant at any moment. The perspective adopted by the contributors to this volume is that some anthropologists have, over the last decade or so, been paying considerable attention to developments in the study of social and biological evolution and of material culture, and that this has brought social, material cultural and biological anthropologists closer to each other and closer to allied disciplines such as archaeology and psychology. A more eclectic anthropology once characteristic of an earlier age is thus re-emerging. The new holism does not result from the merging of sharply distinguished disciplines but from among anthropologists themselves who see social organization as fundamentally a problem of human ecology, and, from that, of material and mental creativity, human biology, and the co-evolution of society and culture. It is part of a wider interest beyond anthropology in the origins and rationale of human activities, claims and beliefs, and draws on inferential or speculative reasoning as well as 'hard' evidence. The book argues that, while usefully borrowing from other subjects, all such reasoning must be grounded in prolonged, intensive and linguistically-informed fieldwork and comparison.
An economic analysis of human milk supplementation for very low birth weight babies in the USA
Background An exclusive human milk diet (EHMD) using human milk based products (pre-term formula and fortifiers) has been shown to lead to significant clinical benefits for very low birth weight (VLBW) babies (below 1250 g). This is expensive relative to diets that include cow’s milk based products, but preliminary economic analyses have shown that the costs are more than offset by a reduction in the cost of neonatal care. However, these economic analyses have not completely assessed the economic implications of EHMD feeding, as they have not considered the range of outcomes affected by it. Methods We conducted an economic analysis of EHMD compared to usual practice of care amongst VLBW babies in the US, which is to include cow's milk based products when required. Costs were evaluated from the perspective of the health care payer, with societal costs considered in sensitivity analyses. Results An EHMD substantially reduces mortality and improves other health outcomes, as well as generating substantial cost savings of $16,309 per infant by reducing adverse clinical events. Cost savings increase to $117,239 per infant when wider societal costs are included. Conclusions An EHMD is dominant in cost-effectiveness terms, that is it is both cost-saving and clinically beneficial, for VLBW babies in a US-based setting.
An exploration of differences between Japan and two European countries in the self-reporting and valuation of pain and discomfort on the EQ-5D
Purpose To investigate the systematic differences in the self-reporting and valuation of overall health and, in particular, pain/discomfort between three countries (England/ UK, Japan, and Spain) on the EQ-5D. Methods Existing datasets were used to explore differences in responses on the EQ-5D descriptive system between Japan (3L and 5L), the UK (3L), England (5L), and Spain (5L), particularly on the dimension of pain/discomfort. The role of different EQ dimensions in determining self-reported overall health scores for the EuroQol visual analog scale (EQ-VAS) was investigated using ordinary least squares regression. Time trade-off (TTO) results from Japanese and UK respondents for the EQ-5D-3L as well as Japanese and English respondents for the EQ-5D-5L were compared using t tests. Results For the EQ-5D-3L, a higher percentage of respondents in Japan than in the UK reported 'no pain/discomfort' (81.6 vs 67.0%, respectively); for the EQ-5D-5L, the proportions were 79.2% in Spain, 73.2% in Japan, and 63-64% in England, after adjusting for age differences in samples. The 'pain/discomfort' dimension had the largest impact on respondents' self-reported EQ-VAS only for EQ-5D-3L in Japan. Using the EQ-5D-3L, Japanese respondents were considerably less willing to trade off time to avoid pain/discomfort than the UK respondents; for example, moving from health state, 11121 (some problems with pain/discomfort) to 11131 (extreme pain/discomfort) represented a decrement of 0.65 on the observed TTO value in the UK compared with 0.15 in Japan. Using the EQ-5D-5L, Japanese respondents were also less willing to trade off time to avoid pain/discomfort than respondents in England; however, the difference in values was much smaller than that observed using EQ-5D-3L data. Conclusions This study provides evidence of between-country differences in the self-reporting and valuation of health, including pain/discomfort, when using EQ-5D in general population samples. The results suggest a need for caution when comparing or aggregating EQ-5D self-reported data in multi-country studies.
The Effect of Perceived Risks on the Demand for Vaccination: Results from a Discrete Choice Experiment
The demand for vaccination against infectious diseases involves a choice between vaccinating and not vaccinating, in which there is a trade-off between the benefits and costs of each option. The aim of this paper is to investigate these trade-offs and to estimate how the perceived prevalence and severity of both the disease against which the vaccine is given and any vaccine associated adverse events (VAAE) might affect demand. A discrete choice experiment (DCE) was used to elicit stated preferences from a representative sample of 369 U.K. mothers of children below 5 years of age, for three hypothetical vaccines. Cost was included as an attribute, which enabled estimation of the willingness to pay for different vaccines having differing levels of the probability of occurrence and severity of both the infection and VAAE. The results suggest that the severity of the health effects associated with both the diseases and VAAEs exert an important influence on the demand for vaccination, whereas the probability of these events occurring was not a significant predictor. This has important implications for public health policy, which has tended to focus on the probability of these health effects as the main influence on decision making. Our results also suggest that anticipated regrets about the consequences of making the wrong decision also exert an influence on demand.
Surgical Outcomes and Morbidity After Radical Surgery for Ovarian Cancer in Aberdeen Royal Infirmary, the Northeast of Scotland Gynaecologic Oncology Centre
Ovarian cancer (OC) has a high mortality rate and usually presents late in advanced stage, which poses challenges to management. Better understanding of the disease biology and application of radical surgery (RS) to achieve no visible residual tumor, alongside with chemotherapy, may lead to longer survival amongst these patients. Our purpose was to examine the demographic characteristics, surgical morbidity and outcomes of patients undergoing RS for OC. A retrospective cohort study of women undertaking surgery for OC between February 2014 and September 2016 in Aberdeen Royal Infirmary. A total of 121 women had surgery for OC of whom 78 (64.5%) were stage II and above. Of these, 40 (51.3%) women had primary and 38 (48.7%) had interval debulking surgery with 42 (53.8%) having radical surgery. The most common procedures that were performed as part of RS included rectosigmoid resection (n=20, 47.6%), small bowel resection (n=10, 23.8%), splenectomy (n=9, 21.4%). Morbidity outcomes included blood loss >1.5 lt. (n=14, 33.3%), hospitalization >7days (n=31, 73.8%), sepsis (n=8, 19%). There was no short-term mortality. Debulking outcomes were: no macroscopic residual disease (n=36, 85.7%), ≤10 mm disease (n=2, 4.8%), and ≥10 mm disease (n=3, 7.1%). Our findings support the practise where RS for OC can be offered to selected patients, with good surgery outcomes and low morbidity rates.
Estimating health system opportunity costs: the role of non-linearities and inefficiency
Background Empirical estimates of health system opportunity costs have been suggested as a basis for the cost-effectiveness threshold to use in Health Technology Assessment. Econometric methods have been used to estimate these in several countries based on data on spending and mortality. This study examines empirical evidence on four issues: non-linearity of the relationship between spending and mortality; the inclusion of outcomes other than mortality; variation in the efficiency with which expenditures generate health outcomes; and the relationship among efficiency, mortality rates and outcome elasticities. Methods Quantile Regression is used to examine non-linearities in the relationship between mortality and health expenditures along the mortality distribution. Data Envelopment Analysis extends the approach, using multiple measures of health outcomes to measure efficiency. These are applied to health expenditure data from 151 geographical units (Primary Care Trusts) of the National Health Service in England, across eight different clinical areas (Programme Budget Categories), for 3 fiscal years from 2010/11 to 2012/13. Results The results suggest differences in efficiency levels across geographical units and clinical areas as to how health resources generate outcomes, which indicates the capacity to adjust to a decrease in health expenditure without affecting health outcomes. Moreover, efficient units have lower absolute levels of mortality elasticity to health expenditure than inefficient ones. Conclusions The policy of adopting thresholds based on estimates of a single system-wide cost-effectiveness threshold assumes a relationship between expenditure and health outcomes that generates an opportunity cost estimate which applies to the whole system. Our evidence of variations in that relationship and therefore in opportunity costs suggests that adopting a single threshold may exacerbate the efficiency and equity concerns that such thresholds are designed to counter. In most health care systems, many decisions about provision are not made centrally. Our analytical approach to understanding variability in opportunity cost can help policy makers target efficiency improvements and set realistic targets for local and clinical area health improvements from increased expenditure.
Longitudinal study of patients’ health-related quality of life using EQ-5D-3L in 11 Swedish National Quality Registers
ObjectiveTo compare problems reported in the five EQ-5D-3L dimensions and EQ VAS scores at baseline and at 1-year follow-up among different patient groups and specific diagnoses in 11 National Quality Registers (NQRs) and to compare these with the general population.DesignLongitudinal, descriptive study.Participants2 66 241 patients from 11 NQRs and 49 169 participants from the general population were included in the study.Primary and secondary outcome measuresProportions of problems reported in the five EQ-5D-3L dimensions, EQ VAS scores of participants’ own health and proportions of participants and mean/median EQ VAS score in the Paretian Classification of Health Change (PCHC) categories.ResultsIn most of the included registers, and the general population, problems with pain/discomfort were the most frequently reported at baseline and at 1-year follow-up. Mean EQ VAS score (SD) ranged from 45.2 (22.4) among disc hernia patients to 88.1 (15.3) in wrist and hand fracture patients at baseline. They ranged from 48.9 (20.9) in pulmonary fibrosis patients to 83.3 (17.4) in wrist and hand fracture patients at follow-up. The improved category of PCHC, improvement in at least one dimension without deterioration in any other, accounted for the highest proportion in several diagnoses, corresponding with highest improvement in mean EQ VAS score.ConclusionsThe study documented self-reported health of several different patient groups using the EQ-5D-3L in comparing with the general population. This demonstrated the important role of patient-reported outcomes in routine clinical care, to assess and follow-up health status and progress within different groups of patients. The EQ-5D-3L descriptive system and EQ VAS have an important role in providing a ‘common denominator’, allowing comparisons across NQRs and specific diagnoses.Trial registration numberClinicalTrials.gov (NCT04359628).