9,914 research outputs found
The Impact of Native Language Status on the Frequency of Heart Failure Readmissions
Introduction. Heart failure readmissions are costly and lead to poor health outcomes. The efficacy of discharge instructions or other outpatient interventions may be affected by patient’s primary language status. The aim of this study is to look at the impact of primary language status on the frequency of heart failure admissions.
Methods. This study was a retrospective chart review of EMRs, on Epic software, at Jefferson academic medical center and community affiliate in Philadelphia, PA between March 2017 and October 2018. Patients were included if they had a principal diagnosis of HF or a diagnosis associated with “acute” heart failure within the first five problems on their discharge problem list. More detailed chart review was performed on ambiguous cases. A patient encounter was classified as ‘readmission’ for any in-hospital stay within 30-days, whether the patient was placed into ‘observation’ or ‘inpatient’ status.
Results. There were 2350 acute HF encounters; consisting of 1524 unique patients. Of those 1524, 1425 listed English as their primary language while 99 listed a different primary language. Of the 2350 encounters, 2209 of those were from English-speakers; 469 were thirty-day readmissions (0.212 readmission rate). The non-primary English speakers made up 141 of the total 2350 encounters; 29 were thirty-day readmissions (0.206 readmission rate).
Conclusions. Our data, in contrast to other studies, suggests language barriers may not significantly influence HF readmission rates. Results may be regionally specific. Future studies are needed to further delineate the impact of primary language status on frequency of health care admissions
Entertainment — The painful process of rethinking consent
The principal focus of this article will be upon an area of activity that has over the past decade seen a significant amount of growth in popularity, namely, the infliction of pain and/or injury for the purposes of entertainment, as pioneered by the US TV series and spin-off films Jackass and widely copied in the UK by, for example, Dirty Sanchez and the double act ‘The Pain Men’ on Channel 4’s programme, Balls of Steel. Until recently, and despite its popularity, this type of entertainment has attracted minimal comment from academics or practitioners on the legality of such conduct. However, a campaign begun by Mediawatch in 2010 has brought to prominence some interesting and potentially difficult questions about the ability of a person to consent to injuries caused in the name of entertainment.
As the parameters of legally valid consent are both unstable and contested, it is unclear whether the types of conduct under discussion here are capable of being consented to and whether the associated reasons for inflicting the pain and sometimes injury provide any justification for what might otherwise be criminal behaviour. In analysing the application of the criminal law to instances of what is referred to here as ‘painful entertainment’ this article challenges traditional approaches to the categorisation of consensual activities and proposes a rethinking of how the law of offences against the person could be applied to novel situations
Cost-effectiveness of granulocyte colony-stimulating factor prophylaxis for febrile neutropenia in patients with non-Hodgkin's lymphoma in the United Kingdom (UK)
Introduction: We report a cost-effectiveness evaluation of granulocyte colony-stimulating factors (G-CSFs) for prevention of febrile neutropenia (FN) following chemotherapy for non-Hodgkin’s lymphoma (NHL) in the United Kingdom (UK).
Methods: A mathematical model was constructed simulating the experience of patients with NHL undergoing chemotherapy. Three strategies were modelled: primary prophylaxis (G-CSFs administered in all cycles); secondary prophylaxis (G-CSFs administered in all cycles following an FN event), and no G-CSF prophylaxis. Three G-CSFs were considered: filgrastim; lenograstim and pegfilgrastim. Costs were taken from UK databases and utility values from published sources with the base case analysis using list prices for G-CSFs and a willingness to pay (WTP) threshold of £20,000 per QALY gained. A systematic review provided data on G-CSF efficacy. Probabilistic sensitivity analyses examined the effects of uncertainty in model parameters.
Results: In the base-case analysis the most cost-effective strategy was primary prophylaxis with pegfilgrastim for a patient with baseline FN risk greater than 22%, secondary prophylaxis with pegfilgrastim for baseline FN risk 8-22%, and no G-CSFs for baseline FN risk less than 8%. Using a WTP threshold of £30,000, primary prophylaxis with pegfilgrastim was cost-effective for baseline FN risks greater than 16%. In all analyses, pegfilgrastim dominated filgrastim and lenograstim. Sensitivity analyses demonstrated that higher WTP threshold, younger age, or reduced G-CSF prices result in G-CSF prophylaxis being cost-effective at lower baseline FN risk levels.
Conclusions: Pegfilgrastim was the most cost-effective G-CSF. The most cost-effective strategy (primary or secondary prophylaxis) was dependent on underlying FN risk level, patient age, and G-CSF price
Microcystic, Elongated, and Fragmented (MELF) Pattern Invasion in Ovarian Endometrioid Carcinoma: Immunohistochemical Profile and Prognostic Implications
BACKGROUND
•Microcystic, Elongated and Fragmented (MELF) is a well-recognized pattern of uterine endometrioid carcinoma (UEC) associated with lymphovascular space invasion and occult lymph node metastasis
•MELF in UEC may be seen with Lynch Syndrome
•MELF in UEC is hypothesized to be histologic evidence of an epithelial mesenchymal transition
•MELF pattern invasion in ovarian endometrioid carcinoma (OEC) was first described at USCAP 2015 •
Current study evaluates MELF in OEC for
•Prognostic implications
•Immunohistochemical (IHC) profile related to
•Lynch Syndrome
•Epithelial mesenchymal transition
DESIGN
•42 consecutive cases of OEC without concurrent UEC (1996-2014) evaluated by 2 pathologists
•MELF defined as at least three glands fulfilling histologic criteria
•32 cases had blocks available for staining
•MLH1, PMS2, MSH2 and MSH6 for mismatch repair (MMR) protein expression
•Graded as “retained” or “lost”
•β-catenin, e-cadherin, CK19 and cyclin D1 for evidence of epithelial mesenchymal transition
•Graded as “rare” (75% cells stain)
•Retrospective chart review of clinical and demographic features and overall survival
•Data analyzed using Fisher exact test analysis
•Survival analyzed using Kaplan-Meier metho
Factors Associated with Severe Late Toxicity After Concurrent Chemoradiation for Locally Advanced Head and Neck Cancer: An RTOG Analysis
Purpose
Concurrent chemoradiotherapy (CCRT) for squamous cell carcinoma of the head and neck (SCCHN) increases both local tumor control and toxicity. This study evaluates clinical factors that are associated with and might predict severe late toxicity after CCRT.
Methods
Patients were analyzed from a subset of three previously reported RTOG trials of concurrent chemoradiotherapy for locally advanced SCCHN (RTOG 91-11; 97-03; and 99-14). Severe late toxicity was defined in this secondary analysis as chronic Grade 3-4 pharyngeal/laryngeal toxicity (RTOG/EORTC late toxicity scoring system) and/or requirement for a feeding tube ≥2 years after registration and/or potential treatment-related death (e.g. pneumonia) within 3 years. Case-control analysis was performed, with a multivariable logistic regression model that included pre-treatment and treatment potential factors.
Results
A total of 230 patients were evaluable for this analysis, 99 cases (patients with severe late toxicities) and 131 controls; thus 43% of evaluable patients had a severe late toxicity. On multivariable analysis, significant variables correlated with the development of severe late toxicity were older age (odds ratio 1.05 per year; p = 0.001); advanced T-stage (odds ratio 3.07; p=0.0036); larynx/hypopharynx primary site (odds ratio 4.17; p=0.0041); and neck dissection after chemo-RT (odds ratio 2.39; p=0.018).
Conclusions
Severe late toxicity following CCRT is common. Older age, advanced T-stage, and larynx/ hypopharynx primary site were strong independent risk
American Society of Clinical Oncology. Machtay, M. et al: J. Clin. Oncol. 26 (21), 2008:3582-3589
Cost-effectiveness of granulocyte colony-stimulating factor prophylaxis for febrile neutropenia in breast cancer in the United Kingdom
Introduction: We report a cost-effectiveness evaluation of granulocyte colony–stimulating factors (G-CSFs) for the prevention of febrile neutropenia (FN) after chemotherapy in the United Kingdom (UK).
Methods: A mathematical model was constructed simulating the experience of women with breast cancer undergoing chemotherapy. Three strategies were modelled: primary prophylaxis (G-CSFs administered in all cycles), secondary prophylaxis (G-CSFs administered in all cycles after an FN event), and no G-CSF prophylaxis. Three G-CSFs were considered: filgrastim, lenograstim, and pegfilgrastim. Costs were taken from UK databases and utility values from published sources. A systematic review provided data on G-CSF efficacy. Probabilistic sensitivity analyses examined the effects of uncertainty in model parameters.
Results: In the UK, base-case analysis with a willingness-to-pay (WTP) threshold of £20,000 per quality-adjusted life-year gained and using list prices, the most cost-effective strategy was primary prophylaxis with pegfilgrastim for a patient with baseline FN risk greater than 38%, secondary prophylaxis with pegfilgrastim for baseline FN risk 11% to 37%, and no G-CSFs for baseline FN risk less than 11%. Using a WTP threshold of £30,000 and list prices, primary prophylaxis with pegfilgrastim was cost-effective for baseline FN risks greater than 29%. In all analyses, pegfilgrastim dominated filgrastim and lenograstim. Sensitivity analyses demonstrated that higher WTP threshold, younger age, earlier stage at diagnosis, or reduced G-CSF prices result in G-CSF prophylaxis being cost-effective at lower baseline FN risk levels.
Conclusion: Pegfilgrastim was the most cost-effective G-CSF. The most cost-effective strategy (primary or secondary prophylaxis) was dependent on the FN risk level for an individual patient, patient age and stage at diagnosis, and G-CSF price
A Systematic Review of Online Sex Addiction and Clinical Treatments Using CONSORT Evaluation
Researchers have suggested that the advances of the Internet over the past two decades have gradually eliminated traditional offline methods of obtaining sexual material. Additionally, research on cybersex and/or online sex addictions has increased alongside the development of online technology. The present study extended the findings from Griffiths’ (2012) systematic empirical review of online sex addiction by additionally investigating empirical studies that implemented and/or documented clinical treatments for online sex addiction in adults. A total of nine studies were identified and then each underwent a CONSORT evaluation. The main findings of the present review provide some evidence to suggest that some treatments (both psychological and/or pharmacological) provide positive outcomes among those experiencing difficulties with online sex addiction. Similar to Griffiths’ original review, this study recommends that further research is warranted to establish the efficacy of empirically driven treatments for online sex addiction
Osmoregulatory bicarbonate secretion exploits H(+)-sensitive haemoglobins to autoregulate intestinal O2 delivery in euryhaline teleosts
This is the final version of the article. Available from Springer Verlag via the DOI in this record.Marine teleost fish secrete bicarbonate (HCO3 (-)) into the intestine to aid osmoregulation and limit Ca(2+) uptake by carbonate precipitation. Intestinal HCO3 (-) secretion is associated with an equimolar transport of protons (H(+)) into the blood, both being proportional to environmental salinity. We hypothesized that the H(+)-sensitive haemoglobin (Hb) system of seawater teleosts could be exploited via the Bohr and/or Root effects (reduced Hb-O2 affinity and/or capacity with decreasing pH) to improve O2 delivery to intestinal cells during high metabolic demand associated with osmoregulation. To test this, we characterized H(+) equilibria and gas exchange properties of European flounder (Platichthys flesus) haemoglobin and constructed a model incorporating these values, intestinal blood flow rates and arterial-venous acidification at three different environmental salinities (33, 60 and 90). The model suggested red blood cell pH (pHi) during passage through intestinal capillaries could be reduced by 0.14-0.33 units (depending on external salinity) which is sufficient to activate the Bohr effect (Bohr coefficient of -0.63), and perhaps even the Root effect, and enhance tissue O2 delivery by up to 42 % without changing blood flow. In vivo measurements of intestinal venous blood pH were not possible in flounder but were in seawater-acclimated rainbow trout which confirmed a blood acidification of no less than 0.2 units (equivalent to -0.12 for pHi). When using trout-specific values for the model variables, predicted values were consistent with measured in vivo values, further supporting the model. Thus this system is an elegant example of autoregulation: as the need for costly osmoregulatory processes (including HCO3 (-) secretion) increases at higher environmental salinity, so does the enhancement of O2 delivery to the intestine via a localized acidosis and the Bohr (and possibly Root) effect.Underlying research materials, i.e. raw data, is accessible by contacting the corresponding author, Dr. Rod Wilson at [email protected]. This research was supported by BBSRC and NERC grants (BB/D005108/1 and NE/H010041/1) to RWW and an NSERC Discovery grant to CJB. We would like to thank Jan Shears for excellent technical support and fish husbandry
Cognitive architectures as Lakatosian research programmes: two case studies
Cognitive architectures - task-general theories of the structure and function of the complete cognitive system - are sometimes argued to be more akin to frameworks or belief systems than scientific theories. The argument stems from the apparent non-falsifiability of existing cognitive architectures. Newell was aware of this criticism and argued that architectures should be viewed not as theories subject to Popperian falsification, but rather as Lakatosian research programs based on cumulative growth. Newell's argument is undermined because he failed to demonstrate that the development of Soar, his own candidate architecture, adhered to Lakatosian principles. This paper presents detailed case studies of the development of two cognitive architectures, Soar and ACT-R, from a Lakatosian perspective. It is demonstrated that both are broadly Lakatosian, but that in both cases there have been theoretical progressions that, according to Lakatosian criteria, are pseudo-scientific. Thus, Newell's defense of Soar as a scientific rather than pseudo-scientific theory is not supported in practice. The ACT series of architectures has fewer pseudo-scientific progressions than Soar, but it too is vulnerable to accusations of pseudo-science. From this analysis, it is argued that successive versions of theories of the human cognitive architecture must explicitly address five questions to maintain scientific credibility
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