43 research outputs found
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Multimethod Evaluation of the VA’s Peer-to-Peer Toolkit for Patient-Centered Medical Home Implementation
BACKGROUND: Effective implementation of the patient-centered medical home (PCMH) in primary care
practices requires training and other resources, such as
online toolkits, to share strategies and materials. The
Veterans Health Administration (VA) developed an online
Toolkit of user-sourced tools to support teams
implementing its Patient Aligned Care Team (PACT)
medical home model.
OBJECTIVE: To present findings from an evaluation of
the PACT Toolkit, including use, variation across facilities,
effect of social marketing, and factors influencing
use.
INNOVATION: The Toolkit is an online repository of
ready-to-use tools created by VA clinic staff that
physicians, nurses, and other team members may
share, download, and adopt in order to more effectively
implement PCMH principles and improve local performance
on VA metrics.
DESIGN: Multimethod evaluation using: (1) website
usage analytics, (2) an online survey of the PACT
community of practice’s use of the Toolkit, and (3) key
informant interviews.
PARTICIPANTS: Survey respondents were PACT team
members and coaches (n=544) at 136 VA facilities.
Interview respondents were Toolkit users and nonusers
(n=32).
MEASURES: For survey data, multivariable logistic
models were used to predict Toolkit awareness and
use. Interviews and open-text survey comments were
coded using a “common themes” framework. The
Consolidated Framework for Implementation Research
(CFIR) guided data collection and analyses.
KEY RESULTS: The Toolkit was used by 6,745 staff in
the first 19 months of availability. Among members of
the target audience, 80% had heard of the Toolkit, and
of those, 70% had visited the website. Tools had been
implemented at 65% of facilities. Qualitative findings
revealed a range of user perspectives from enthusiastic
support to lack of sufficient time to browse the Toolkit.
CONCLUSIONS: An online Toolkit to support PCMH
implementation was used at VA facilities nationwide. Other complex health care organizations may benefit
from adopting similar online peer-to-peer resource
libraries.Keywords: evaluation, implementation research, primary care redesign, patient-centered care, quality improvemen
A multi-institutional retrospective pooled outcome analysis of molecularly annotated pediatric supratentorial ZFTA-fused ependymoma
BACKGROUND
ZFTA-RELA (formerly known as c11orf-RELA) fused supratentorial ependymoma (ZFTAfus ST-EPN) has been recognized as a novel entity in the 2016 WHO classification of CNS tumors and further defined in the recent 2021 edition. ZFTAfus ST-EPN was reported to portend poorer prognosis when compared to its counterpart, YAP1 ST-EPN in some previously published series. The aim of this study was to determine the treatment outcome of molecularly confirmed and conventionally treated ZFTAfus ST-EPN patients treated in multiple institutions.
METHODS
We conducted a retrospective analysis of all pediatric patients with molecularly confirmed ZFTAfus ST-EPN patients treated in multiple institutions in 5 different countries (Australia, Canada, Germany, Switzerland, and Czechia). Survival outcomes were analyzed and correlated with clinical characteristics and treatment approaches.
RESULTS
A total of 108 patients were collated from multiple institutions in 5 different countries across three continents. We found across the entire cohort that the 5- and 10-year PFS were 65% and 63%, respectively. The 5- and 10-year OS of this cohort of patients were 87% and 73%. The rates of gross total resection (GTR) were high with 84 out of 108 (77.8%) patients achieving GTR. The vast majority of patients also received post-operative radiotherapy, 98 out of 108 (90.7%). Chemotherapy did not appear to provide any survival benefit in our patient cohort.
CONCLUSION
This is the largest study to date of contemporaneously treated molecularly confirmed ZFTAfus ST-EPN patients which identified markedly improved survival outcomes compared to previously published series. This study also re-emphasizes the importance of maximal surgical resection in achieving optimal outcomes in pediatric patients with supratentorial ependymoma
A two-stage search of visual working memory:investigating speed in the change-detection paradigm
A popular procedure for investigating working memory processes has been the visual change-detection procedure. Models of performance in that procedure, however, tend to be based on performance accuracy and to treat working memory search as a one-step process, in which memory representations are compared to a test probe to determine if a match is present. To gain a clearer understanding of how search of these representations operate in the change-detection task, we examined reaction time in two experiments, with a single-item probe either located centrally or at the location of an array item. Contrary to current models of visual working memory capacity, our data point to a two-stage search process: a fast first step to check for the novelty of the probe and, in the absence of such novelty, a second, slower step to search exhaustively for a match between the test probe and a memory representation. In addition to these results, we found that participants tended not to use location information provided by the probe that theoretically could have abbreviated the search process. We suggest some basic revisions of current models of processing in this type of visual working memory task
The IPBES Conceptual Framework - connecting nature and people
The first public product of the Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES) is its Conceptual Framework. This conceptual and analytical tool, presented here in detail, will underpin all IPBES functions and provide structure and comparability to the syntheses that IPBES will produce at different spatial scales, on different themes, and in different regions. Salient innovative aspects of the IPBES Conceptual Framework are its transparent and participatory construction process and its explicit consideration of diverse scientific disciplines, stakeholders, and knowledge systems, including indigenous and local knowledge. Because the focus on co-construction of integrative knowledge is shared by an increasing number of initiatives worldwide, this framework should be useful beyond IPBES, for the wider research and knowledge-policy communities working on the links between nature and people, such as natural, social and engineering scientists, policy-makers at different levels, and decision-makers in different sectors of society
2017 Research & Innovation Day Program
A one day showcase of applied research, social innovation, scholarship projects and activities.https://first.fanshawec.ca/cri_cripublications/1004/thumbnail.jp
Brainstem blood brain barrier disruption using focused ultrasound: A demonstration of feasibility and enhanced doxorubicin delivery
Magnetic Resonance Image-guided Focused Ultrasound (MRgFUS) has been used to achieve transient blood brain barrier (BBB) opening without tissue injury. Delivery of a targeted ultrasonic wave causes an interaction between administered microbubbles and the capillary bed resulting in enhanced vessel permeability. The use of MRgFUS in the brainstem has not previously been shown but could provide value in the treatment of tumours such as Diffuse Intrinsic Pontine Glioma (DIPG) where the intact BBB has contributed to the limited success of chemotherapy. Our primary objective was to determine whether the use of MRgFUS in this eloquent brain region could be performed without histological injury and functional deficits. Our secondary objective was to select an effective chemotherapeutic against patient derived DIPG cell lines and demonstrate enhanced brainstem delivery when combined with MRgFUS in vivo.
Female Sprague Dawley rats were randomised to one of four groups: 1) Microbubble administration but no MRgFUS treatment; 2) MRgFUS only; 3) MRgFUS + microbubbles; and 4) MRgFUS + microbubbles + cisplatin. Physiological assessment was performed by monitoring of heart and respiratory rates. Motor function and co-ordination were evaluated by Rotarod and grip strength testing. Histological analysis for haemorrhage (H & E), neuronal nuclei (NeuN) and apoptosis (cleaved Caspase-3) was also performed. A drug screen of eight chemotherapy agents was conducted in three patient-derived DIPG cell lines (SU-DIPG IV, SU-DIPG XIII and SU-DIPG XVII). Doxorubicin was identified as an effective agent. NOD/SCID/GAMMA (NSG) mice were subsequently administered with 5 mg/kg of intravenous doxorubicin at the time of one of the following: 1) Microbubbles but no MRgFUS; 2) MRgFUS only; 3) MRgFUS + microbubbles and 4) no intervention. Brain specimens were extracted at 2 h and doxorubicin quantification was conducted using liquid chromatography mass spectrometry (LC/MS).
BBB opening was confirmed by contrast enhancement on T1-weighted MR imaging and positive Evans blue staining of the brainstem. Normal cardiorespiratory parameters were preserved. Grip strength and Rotarod testing demonstrating no decline in performance across all groups. Histological analysis showed no evidence of haemorrhage, neuronal loss or increased apoptosis.
Doxorubicin demonstrated cytotoxicity against all three cell lines and is known to have poor BBB permeability. Quantities measured in the brainstem of NSG mice were highest in the group receiving MRgFUS and microbubbles (431.5 ng/g). This was significantly higher than in mice who received no intervention (7.6 ng/g).
Our data demonstrates both the preservation of histological and functional integrity of the brainstem following MRgFUS for BBB opening and the ability to significantly enhance drug delivery to the region, giving promise to the treatment of brainstem-specific conditions
Country-Level Aid Coordination at the United Nations: Taking the Resident Coordinator System Forward
Internet-Based Resources for Disease Self-Care among Middle-Aged and Older Women with Chronic Conditions
Objective: This two-part study analyzed data collected from middle-aged (age 44-64) and older women (age 65+) with one or more chronic conditions who completed the National Council on Aging Chronic Care Survey. Materials and Methods: Part One analyzed data from 418 women to describe sociodemographics, disease types, and healthcare utilization associated with Internet use among middle-aged and older women with 1 or more chronic diseases. Part Two analyzed data from the 251 Internet-using women to identify the online self-care resources they are using (format, host organization) and for what purposes. Results: Approximately 31% of participants were age 65 years or older, 30% reported having three or more chronic condition types, and 65% reported using the Internet. A significantly larger proportion of older women reported multiple chronic conditions, and a significantly fewer number of older women reported using the Internet. A significantly smaller proportion of Internet users were non-Hispanic white, more educated, and employed. A significantly larger proportion of non-Internet users reported needing help learning what to do to manage their health conditions and needing help learning how to care for their health conditions. Among only Internet-using women, 18.7% participated in online discussions/chatrooms/listserv and 45.2% read about the experiences of others with chronic diseases. Interest in websites and online courses varied. Conclusion: Understanding Internet use among women with chronic conditions can inform targeted efforts to increase Internet availability, educate potential users about the benefits of online resources, and effectively tailor Internet-based materials to self-care needs