532 research outputs found
Systematic review of the efficacy of antiemetics in the treatment of nausea in patients with far advanced cancer
Objectives: To systematically review studies of antiemetics used in the treatment of nausea in patients with far-advanced cancer. Data sources: Randomized controlled trials (RCT) and uncontrolled studies identified by electronic and hand searching. Review methods: Identified studies were appraised for quality and effect size. Results: Of 21 studies included, 2 were systematic reviews, 7 were RCT and 12 were uncontrolled studies or case series. Differences in interventions and outcomes amongst the RCT precluded any quantitative data synthesis and all seven studies were prone to bias. Whereas uncontrolled studies indicated a high response rate to standard regimens (75-93% for both nausea and vomiting), RCT showed much lower response rates to these agents (23-36% for nausea, 18-52% for vomiting). The two methods of antiemetic choice (choice based either on the inferred mechanism or empirical) were equally effective. There is reasonably strong evidence for the use of metoclopramide in cancer-associated dyspepsia and steroids in malignant bowel obstruction. There was conflicting evidence about the efficacy of serotonin antagonists compared with standard treatments (e.g. metoclopramide, dopamine antagonists and dexamethasone). There was little or no evidence of the efficacy of some commonly used and seemingly effective drugs such as haloperidol, cyclizine, and methotrimeprazine. Conclusion: Evidence supporting the existing consensus-based guidelines for management of nausea and vomiting in advanced cancer is sparse. Current approaches to treatment based on the neuropharmacology of the emetic pathway may be inappropriate in this setting. Well-designed studies of the impact of "standard" management and novel agents on nausea and vomiting in palliative populations are needed
Mapping IMS Learning Design and Moodle. A first understanding
Please, cite this publication as follows: Burgos, D., Tattersall, C., Dougiamas, M., Vogten, H., & Koper, E. J. R. (2006). Mapping IMS Learning Design and Moodle. A first understanding. Proceedings of Simposo Internacional de Informática Educativa (SIIE06), León, Spain: IEEE Technical Committee on Learning Technology. Retrieved September 12th, 2006, from http://dspace.learningnetworks.orgThe specification IMS Learning Design (IMS LD) and Moodle look
for a common understanding focused on the integration of both e-learning
approches. The final goal is that Moodle will be able to play an IMS LD
package and any IMS LD tool will be able to import a Moodle course and use it
as a base, or even to import a Unit of Learning made in IMS LD to be used and
played in the Moodle Course Management System. The Unit of Learning in
IMS LD (UoL) and the course in Moodle become the perfect marriage where to
find several elements that should match one to each other. This paper show how
to make this understanding between notations, mapping related elements in both
to get a list of pairs easy to translate from one to each other, and to define also a
list of requirements for this protocol.UNFOLD Project and ProLearn Projec
Parallel multicentre randomised trial of a clinical trial question prompt list in patients considering participation in phase 3 cancer treatment trials
Accepted 9 February 2017Objective: To evaluate the effect of a clinical trial question prompt list in patients considering enrolment in cancer treatment trials. Setting: Tertiary cancer referral hospitals in three state capital cities in Australia. Participants: 88 patients with cancer attending three cancer centres in Australia, who were considering enrolment in phase 3 treatment trials, were invited to enrol in an unblinded randomised trial of provision of a clinical trial question prompt list (QPL) before consenting to enrol in the treatment trial. Interventions: We developed and pilot tested a targeted QPL for patients with cancer considering clinical trial participation (the clinical trial QPL). Consenting patients were randomised to receive the clinical trial QPL or not before further discussion with their oncologist and/or trial nurse about the treatment trial. Primary and secondary outcomes: Questionnaires were completed at baseline and within 3â €..weeks of deciding on treatment trial participation. Main outcome measure: scores on the Quality of Informed Consent questionnaire (QuIC). Results: 88 patients of 130 sought for the study were enrolled (43 males), and 45 received the clinical trial QPL. 49% of trials were chemotherapy interventions for patients with advanced disease, 35% and 16% were surgical adjuvant and radiation adjuvant trials respectively. 70 patients completed all relevant questionnaires. 28 of 43 patients in the control arm compared with 39 of 45 patients receiving the clinical trial QPL completed the QuIC (p=0.0124). There were no significant differences in the QuIC scores between the randomised groups (QuIC part A p=0.08 and QuIC part B p=0.92). There were no differences in patient satisfaction with decisions or in anxiety levels between the randomised groups. Conclusions: Use of a question prompt list did not significantly change the QuIC scores in this randomised trial. ANZCTR 12606000214538 prospectively registered 31/5/2006. Trial registration number: Results, ACTRN12606000214538.Martin H N Tattersall, Michael Jefford, Andrew Martin, Ian Olver, John F Thompson, Richard F Brown, Phyllis N Buto
Cancer patient preferences for communication of prognosis in the metastatic setting
PURPOSE: To identify preferences for and predictors of prognostic information among patients with incurable metastatic cancer. PATIENTS AND METHODS: One hundred twenty-six metastatic cancer patients seeing 30 oncologists at 12 outpatient clinics in New South Wales, Australia, participated in the study. Patients were diagnosed with incurable metastatic disease within 6 weeks to 6 months of recruitment. Patients completed a survey eliciting their preferences for prognostic information, including type, quantity, mode, and timing of presentation; anxiety and depression levels; and information and involvement preferences. RESULTS: More than 95% of patients wanted information about side effects, symptoms, and treatment options. The majority wanted to know longest survival time with treatment (85%), 5-year survival rates (80%), and average survival (81%). Words and numbers were preferred over pie charts or graphs. Fifty-nine percent (59%) wanted to discuss expected survival when first diagnosed with metastatic disease. Thirty-eight percent and 44% wanted to negotiate when expected survival and dying, respectively, were discussed. Patients with higher depression scores were more likely to want to know shortest time to live without treatment (P = .047) and average survival (P = .049). Lower depression levels were significantly associated with never wanting to discuss expected survival (P = .03). Patients with an expected survival of years were more likely to want to discuss life expectancy when first diagnosed with metastases (P = .02). CONCLUSION: Most metastatic cancer patients want detailed prognostic information but prefer to negotiate the extent, format, and timing of the information they receive from their oncologists.<br /
Renal Association Clinical Practice Guideline on Haemodialysis
© The Author(s) 2019. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.This guideline is written primarily for doctors and nurses working in dialysis units and related areas of medicine in the UK, and is an update of a previous version written in 2009. It aims to provide guidance on how to look after patients and how to run dialysis units, and provides standards which units should in general aim to achieve. We would not advise patients to interpret the guideline as a rulebook, but perhaps to answer the question: "what does good quality haemodialysis look like?"The guideline is split into sections: each begins with a few statements which are graded by strength (1 is a firm recommendation, 2 is more like a sensible suggestion), and the type of research available to back up the statement, ranging from A (good quality trials so we are pretty sure this is right) to D (more like the opinion of experts than known for sure). After the statements there is a short summary explaining why we think this, often including a discussion of some of the most helpful research. There is then a list of the most important medical articles so that you can read further if you want to - most of this is freely available online, at least in summary form.A few notes on the individual sections: 1. This section is about how much dialysis a patient should have. The effectiveness of dialysis varies between patients because of differences in body size and age etc., so different people need different amounts, and this section gives guidance on what defines "enough" dialysis and how to make sure each person is getting that. Quite a bit of this section is very technical, for example, the term "eKt/V" is often used: this is a calculation based on blood tests before and after dialysis, which measures the effectiveness of a single dialysis session in a particular patient. 2. This section deals with "non-standard" dialysis, which basically means anything other than 3 times per week. For example, a few people need 4 or more sessions per week to keep healthy, and some people are fine with only 2 sessions per week - this is usually people who are older, or those who have only just started dialysis. Special considerations for children and pregnant patients are also covered here. 3. This section deals with membranes (the type of "filter" used in the dialysis machine) and "HDF" (haemodiafiltration) which is a more complex kind of dialysis which some doctors think is better. Studies are still being done, but at the moment we think it's as good as but not better than regular dialysis. 4. This section deals with fluid removal during dialysis sessions: how to remove enough fluid without causing cramps and low blood pressure. Amongst other recommendations we advise close collaboration with patients over this. 5. This section deals with dialysate, which is the fluid used to "pull" toxins out of the blood (it is sometimes called the "bath"). The level of things like potassium in the dialysate is important, otherwise too much or too little may be removed. There is a section on dialysate buffer (bicarbonate) and also a section on phosphate, which occasionally needs to be added into the dialysate. 6. This section is about anticoagulation (blood thinning) which is needed to stop the circuit from clotting, but sometimes causes side effects. 7. This section is about certain safety aspects of dialysis, not seeking to replace well-established local protocols, but focussing on just a few where we thought some national-level guidance would be useful. 8. This section draws together a few aspects of dialysis which don't easily fit elsewhere, and which impact on how dialysis feels to patients, rather than the medical outcome, though of course these are linked. This is where home haemodialysis and exercise are covered. There is an appendix at the end which covers a few aspects in more detail, especially the mathematical ideas. Several aspects of dialysis are not included in this guideline since they are covered elsewhere, often because they are aspects which affect non-dialysis patients too. This includes: anaemia, calcium and bone health, high blood pressure, nutrition, infection control, vascular access, transplant planning, and when dialysis should be started.Peer reviewe
The Diboson Excess: Experimental Situation and Classification of Explanations; A Les Houches Pre-Proceeding
We examine the `diboson' excess at TeV seen by the LHC experiments
in various channels. We provide a comparison of the excess significances as a
function of the mass of the tentative resonance and give the signal cross
sections needed to explain the excesses. We also present a survey of available
theoretical explanations of the resonance, classified in three main approaches.
Beyond that, we discuss methods to verify the anomaly, determining the major
properties of the various surpluses and exploring how different models can be
discriminated. Finally, we give a tabular summary of the numerous explanations,
presenting their main phenomenological features.Comment: 37 pages, 9 Figures, 1 Tabl
Recommended from our members
Development of a benchmarking toolkit for adolescent and young adult rheumatology services (BeTAR)
Background:
Young people (YP; 12–24 years old) with rheumatic diseases face many challenges associated with chronic illness in addition to the physiological and psychosocial changes of adolescence. Timely access to developmentally appropriate multidisciplinary care is key to successfully managing rheumatic diseases, but gaps in the care of this vulnerable age group still exist. This study aimed to develop a benchmarking toolkit to enable comparative evaluation of YP rheumatology services in order to promote best practice and reduce variations in service delivery.
Methods:
A staged and consultative method was used across a broad group of stakeholders in the UK (YP, parents/other carers, and healthcare professionals, HCPs) to develop this toolkit, with reference to pre-existing standards of YP-friendly healthcare. Eighty-seven YP (median age 19 years, range 12–24 years) and 26 rheumatology HCPs with 1–34 years of experience caring for YP have participated.
Results:
Thirty quality criteria were identified, which were grouped into four main domains: assessment and treatment, information and involvement, accessibility and environment, and continuity of care. Two toolkit versions, one to be completed by HCPs and one to be completed by patients, were developed. These were further refined by relevant groups and face validity was confirmed.
Conclusions:
A toolkit has been developed to systematically evaluate and benchmark YP rheumatology services, which is key in setting standards of care, identifying targets for improvement and facilitating research. Engagement from YP, clinical teams, and commissioners with this tool should facilitate investigation of variability in levels of care and drive quality improvement
How low can SUSY go? Matching, monojets and compressed spectra
If supersymmetry (SUSY) has a compressed spectrum then the current mass
limits from the LHC can be drastically reduced. We consider a possible 'worst
case' scenario where the gluino and/or squarks are degenerate with the lightest
SUSY particle (LSP). The most sensitive searches for these compressed spectra
are via the final state LSPs recoiling against initial state radiation (ISR).
Therefore it is vital that the ISR is understood and possible uncertainties in
the predictions are evaluated. We use both MLM (with Pythia 6) and CKKW- L
(with Pythia 8) matching and vary matching scales and parton shower properties
to accurately determine the theoretical uncertainties in the kinematic
distributions. All current LHC SUSY and monojet analyses are employed and we
find the most constraining limits come from the CMS Razor and CMS monojet
searches. For a scenario of squarks degenerate with the LSP and decoupled
gluinos we find GeV. For gluinos degenerate with the LSP
and decoupled squarks, GeV. For equal mass squarks and
gluinos degenerate with the LSP, GeV.Comment: References added, version submitted to ep
- …