445 research outputs found
Long-Term Ranibizumab Treatment in Neovascular Age-Related Macular Degeneration: A Belgian Subanalysis from the Global Real-World LUMINOUS TM Study
To evaluate long-term, real-world treatment patterns and outcomes of ranibizumab 0.5 mg for neovascular age-related macular degeneration (nAMD) in a Belgian cohort.; This Belgian (BE) cohort of the 5-year global observational LUMINOUS study included 229 patients with nAMD. Outcomes included visual acuity (VA), central retinal thickness (CRT) and safety.; The mean age was 79.5±7.7 years. The majority of patients (67.7%) were female and all patients were Caucasian. Most patients previously received ranibizumab with only 17.5% of patients being treatment-naïve. The injection frequency declined over time irrespective of prior treatment status (p<0.0001), with treatment-naïve eyes receiving a mean of 4.2±2.9 yearly injections and prior-ranibizumab eyes 3.6±2.7. Regression analysis confirmed first-year VA increases for treatment-naïve eyes (p=0.002) followed by a slight decrease of -1.8 letters per year. For prior-ranibizumab eyes, the visual changes over 1 year were statistically non-significant (p=0.90) but declined slightly after year one (p<0.0001). Anatomically, the CRT of treatment-naïve eyes decreased over time from baseline (p<0.0001), whereas the CRT of prior-ranibizumab eyes remained stable (p=0.43). No new safety findings were identified.; LUMINOUS-BE reconfirms the well-characterized benefit-risk profile of ranibizumab for nAMD treatment. The observed low injection frequency reflects a need for more rigorous treatment in real-world settings.; NCT01318941
Magnetic dot arrays modeling via the system of the radial basis function networks
Two dimensional square lattice general model of the magnetic dot array is
introduced. In this model the intradot self-energy is predicted via the neural
network and interdot magnetostatic coupling is approximated by the collection
of several dipolar terms. The model has been applied to disk-shaped cluster
involving 193 ultrathin dots and 772 interaction centers. In this case among
the intradot magnetic structures retrieved by neural networks the important
role play single-vortex magnetization modes. Several aspects of the model have
been understood numerically by means of the simulated annealing method.Comment: 16 pages, 8 figure
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Real-World Evidence from the Integrative Medicine Primary Care Trial (IMPACT): Assessing Patient-Reported Outcomes at Baseline and 12-Month Follow-Up
Purpose. The University of Arizona Integrative Health Center (UAIHC) was an innovative membership-supported integrative medicine (IM) adult primary care clinic in Phoenix, Arizona. UAIHC delivered healthcare using an integrative medicine model that combined conventional and complementary medical treatments, including nutrition, mind-body medicine, acupuncture, manual medicine, health coaching, educational classes, and groups. Results from pre-post evaluation of patient-reported outcomes on several standardized measures are presented here. Methods. UAIHC patients completed surveys at baseline and after 12 months of continuous integrative primary care. Patients reported on perceived changes in health outcomes as measured by Short-Form Health Survey (SF-12 general, mental, and physical health), Perceived Stress Scale (PSS4), Work Productivity and Activity Impairment Questionnaire (WPAI), World Health Organization Well-Being Index (WHO-5), Pain Visual Analog Scale (VAS), Fatigue Severity Scale (VAS; FSS), Generalized Anxiety Disorder Scale (GAD2), Patient Health Questionnaire for depression (PHQ2), Pittsburgh Sleep Quality Index (PSQI) global rating of sleep quality, and the Behavioral Risk Factor Surveillance System (BRFSS; nutrition, exercise, and physical activity). Overall differences between time points were assessed for statistical significance. Patient demographics are also described. Results. 177 patients completed baseline and follow-up outcome measures. Patients were predominantly white, female, college-educated, and employed. Baseline to one-year follow-up results indicate statistically significant improvements (p < .05) on all but perceived stress (PSS-4) and work absenteeism (WPAI). Clinical impact and/or practical effects are reported as percent change or standardized effect sizes whenever possible. Other demographic and descriptive information is summarized. Conclusions. Following one year of IM primary care at UAIHC, patient-reported outcomes indicated positive impacts in several areas of patients' lives: mental, physical, and overall health; work productivity; sleep quality; pain; fatigue; overall well-being; and physical activity.Adolph Coors Family Foundation; Andrew Weil Center for Integrative Medicine, University of ArizonaOpen access journalThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]
Implementation of discharge management for geriatric patients at risk of readmission or institutionalization
Objective. To evaluate whether implementation of discharge management by trained social workers or nurses reduces hospital readmissions and institutionalizations of geriatric patients in a real-world setting. Design. Quasi-experimental design. Setting. Six general hospitals in Belgium. Participants. A representative sample of 824 patients, 355 of whom were assigned to the experimental group receiving comprehensive discharge management and 469 to the control group receiving usual care. Inclusion criteria were patients admitted to a geriatric, rehabilitation, or internal medicine ward, not residing in a nursing home, and showing risk of readmission or institutionalization on admission in the hospital. Intervention. In-hospital discharge planning according to a case management protocol allowing for adjustment to participating hospitals' case mix and patients' and families' specific needs. Main outcome measures. Hospital readmission within 15 and 90 days post discharge; institutionalization at discharge and within 15 and 90 days post discharge. Results. Discharge management resulted in fewer institutionalizations (n = 53; 14.9%) compared with usual care (n = 130; 23.7%) (adjusted odds ratio = 0.47; CI 95% = 0.31-0.70). Readmission rates between the intervention and usual care group were not significantly different. Conclusions. This implementation project showed that a discharge planning intervention can reduce institutionalization rates of elderly patients in real-life setting
Comparing the efficacy and safety of faecal microbiota transplantation with bezlotoxumab in reducing the risk of recurrent Clostridium difficile infections:a systematic review and Bayesian network meta-analysis of randomised controlled trials
The risk of recurrent Clostridium difficile infections (RCDIs) is high when treated with standard antibiotics therapy (SAT) alone. It is suggested that the addition of faecal microbiota transplantation (FMT) or bezlotoxumab after SAT reduces the risk of RCDI. In the absence of head-to-head randomised controlled trials (RCTs), this review attempts to compare the efficacy and safety of bezlotoxumab with FMT in reducing the risk of RCDI in hospitalised patients.Open access journalThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]
Quantum Zeno and Anti-Zeno probes of noise correlations in photon polarisation
We experimentally demonstrate, for the first time, noise diagnostics by
repeated quantum measurements. Specifically, we establish the ability of a
single photon, subjected to random polarisation noise, to diagnose
non-Markovian temporal correlations of such a noise process. In the frequency
domain, these noise correlations correspond to colored noise spectra, as
opposed to the ones related to Markovian, white noise. Both the noise spectrum
and its corresponding temporal correlations are diagnosed by probing the photon
by means of frequent, (partially-)selective polarisation measurements. Our main
result is the experimental demonstration that noise with positive temporal
correlations corresponds to our single photon undergoing a dynamical regime
enabled by the quantum Zeno effect (QZE), while noise characterized by negative
(anti-) correlations corresponds to regimes associated with the anti-Zeno
effect (AZE). This demonstration opens the way to a new kind of noise
spectroscopy based on QZE and AZE in photon (or other single-particle) state
probing
A proposed expert system for nursing practice
The knowledge on which nursing practice is based comes largely from traditional sources, expert nurses passing on the wisdom of their experience to novices. Nursing research, although increasing, is usually parallel to nursing practice, and its findings, at best, are implemented only after long delays. Consequently, the most effective nursing responses to a particular client problem may be undiscovered or unknown. Nursing information systems reflect the nature and usage of nursing knowledge. They offer standard care plans, but the knowledge and decision structures for individualizing care remain exclusively in the mind of the nurse. Nurses may have great freedom to enter information into the information system, but the information is rarely retrievable in a form suitable for evaluation or research. Nursing practice, and the knowledge on which it is based, could be enhanced through the use of a novel expert system. This paper describes how such a system could be developed, with examples from the authors' prototype programs. Taxonomies of data, diagnoses, objectives, and interventions would make it possible to compare patients and to determine the relative effectiveness of nursing interventions. A built-in evaluation component would provide feedback and correction. Everyday nursing practice would become a field for research, and the knowledge gained from research would immediately be fed back into practice. In its development and in its implementation, this kind of system would help to build nursing science.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/45001/1/10916_2004_Article_BF00992522.pd
Modelling of blood pressure and total cardiovascular risk outcomes after second-line valsartan therapy: The BSCORE study
SummaryBackgroundEuropean guidelines recommend that antihypertensive management should be graded as a function of total cardiovascular risk.AimsTo examine the multilevel (patient- and physician-level) determinants of blood pressure and residual total cardiovascular risk outcomes associated with second-line valsartan therapy.MethodsThe BSCORE study was a prospective, multi-centre, pharmacoepidemiological study of the “real-world” effectiveness of second-line valsartan with or without hydrochlorothiazide.ResultsA total of 3497 patients were recruited by 354 physicians. Mean age was 63.8±12.0 years; 52.3% were male; 20.9% were smokers; 47.7% were dyslipidaemic; and 23.6% had diabetes. On average, reductions in blood pressure and increases in the proportions of patients with controlled blood pressure after 90 days were statistically significant (all P<0.001). Twenty-one percent of systolic blood pressure and 25.6% of diastolic blood pressure variability at follow-up was attributable to physician-level characteristics. Significant reductions in total cardiovascular risk were observed (P<0.001); with 12.5% of the variability in total cardiovascular risk change attributable to physician-level characteristics. Several independent determinants of blood pressure outcomes were identified, many of which are modifiable.ConclusionsSecond-line valsartan therapy improves blood pressure outcomes under variable real-world conditions, and is associated with a decrease in total cardiovascular risk. Optimizing antihypertensive effectiveness, including the reduction of residual cardiovascular risk, involves managing concomitant conditions and risk factors, improving adherence, and identifying physician-level factors amenable to intervention
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