20 research outputs found
Improving Care for the Frail in Nova Scotia: An Implementation Evaluation of a Frailty Portal in Primary Care Practice
Abstract
Background: Understanding and addressing the needs of frail patients has been identified as an important strategy by
the Nova Scotia Health Authority (NSHA). Primary care (PC) providers are in a key position to aid in the identification
of, and response to frailty as part of routine care. Unlike singular chronic conditions such as diabetes and hypertension
which garner a disease-based approach and identification as part of standard practice, frailty is only just emerging as a
concept for PC. The web-based Frailty Portal was developed to aid in the identification of, assessment and care planning
for frail patients in PC practice. In this study we assess the implementation feasibility and impact of the Frailty Portal
by: (1) identifying factors influencing the Frailty Portal’s use in community PC practice, and (2) examination of the
immediate impact of the ‘Frailty Portal’ on frail patients, their caregivers and PC providers.
Methods: A convergent mixed method approach was implemented among PC providers in community-based practice in
the NSHA, Central Zone. Quantitative and qualitative data were collected concurrently over a 9-month period. A sample
of patients who underwent assessment and/or their caregiver were approached for survey participation.
Results: Fourteen community PC providers (10 family physicians, 4 nurse practitioners) completed 48 patient assessments
and completed or begun 41 care plans; semi-structured interviews were conducted among 9 providers. Nine patients
and 5 caregivers participated in the survey. PC providers viewed frailty as an important concept but implementation
challenges were met, primarily with respect to the time required for use and lack of fit with traditional practice routines.
Additional barriers included tool usability and accessibility, training and care planning steps, and privacy. Impacts of the
tools use with respect to confidence and knowledge showed early promise.
Conclusion: This feasibility study highlights the need for added health system supports, resources and financial incentives
for successful implementation of the Frailty Portal in community PC practice. We suggest future implementation
integrate the Frailty Portal to practice electronic medical records (EMRs) and target providers with largely geriatric
practice populations and those practicing within interdisciplinary, collaborative primary healthcare (PHC) teams
Bringing Value-Based Perspectives to Care: Including Patient and Family Members in Decision-Making Processes
Background: Recent evidence shows that patient engagement is an important strategy in achieving a high performing
healthcare system. While there is considerable evidence of implementation initiatives in direct care context, there
is limited investigation of implementation initiatives in decision-making context as it relates to program planning,
service delivery and developing policies. Research has also shown a gap in consistent application of system-level
strategies that can effectively translate organizational policies around patient and family engagement into practice.
Methods: The broad objective of this initiative was to develop a system-level implementation strategy to include
patient and family advisors (PFAs) at decision-making points in primary healthcare (PHC) based on wellestablished evidence and literature. In this opportunity sponsored by the Canadian Foundation for Healthcare
Improvement (CFHI) a co-design methodology, also well-established was applied in identifying and developing
a suitable implementation strategy to engage PFAs as members of quality teams in PHC. Diabetes management
centres (DMCs) was selected as the pilot site to develop the strategy. Key steps in the process included review of
evidence, review of the current state in PHC through engagement of key stakeholders and a co-design approach.
Results: The project team included a diverse representation of members from the PHC system including patient
advisors, DMC team members, system leads, providers, Public Engagement team members and CFHI improvement
coaches. Key outcomes of this 18-month long initiative included development of a working definition of patient
and family engagement, development of a Patient and Family Engagement Resource Guide and evaluation of the
resource guide.
Conclusion: This novel initiative provided us an opportunity to develop a supportive system-wide implementation
plan and a strategy to include PFAs in decision-making processes in PHC. The well-established co-design
methodology further allowed us to include value-based (customer driven quality and experience of care) perspectives
of several important stakeholders including patient advisors. The next step will be to implement the strategy within
DMCs, spread the strategy PHC, both locally and provincially with a focus on sustainabilit
Validation of human telomere length multi-ancestry meta-analysis association signals identifies POP5 and KBTBD6 as human telomere length regulation genes
Genome-wide association studies (GWAS) have become well-powered to detect loci associated with telomere length. However, no prior work has validated genes nominated by GWAS to examine their role in telomere length regulation. We conducted a multi-ancestry meta-analysis of 211,369 individuals and identified five novel association signals. Enrichment analyses of chromatin state and cell-type heritability suggested that blood/immune cells are the most relevant cell type to examine telomere length association signals. We validated specific GWAS associations by overexpressing KBTBD6 or POP5 and demonstrated that both lengthened telomeres. CRISPR/Cas9 deletion of the predicted causal regions in K562 blood cells reduced expression of these genes, demonstrating that these loci are related to transcriptional regulation of KBTBD6 and POP5. Our results demonstrate the utility of telomere length GWAS in the identification of telomere length regulation mechanisms and validate KBTBD6 and POP5 as genes affecting telomere length regulation
Validation of Human Telomere Length Multi-Ancestry Meta-Analysis Association Signals Identifies POP5 and KBTBD6 as Human Telomere Length Regulation Genes
Genome-wide association studies (GWAS) have become well-powered to detect loci associated with telomere length. However, no prior work has validated genes nominated by GWAS to examine their role in telomere length regulation. We conducted a multi-ancestry meta-analysis of 211,369 individuals and identified five novel association signals. Enrichment analyses of chromatin state and cell-type heritability suggested that blood/immune cells are the most relevant cell type to examine telomere length association signals. We validated specific GWAS associations by overexpressing KBTBD6 or POP5 and demonstrated that both lengthened telomeres. CRISPR/Cas9 deletion of the predicted causal regions in K562 blood cells reduced expression of these genes, demonstrating that these loci are related to transcriptional regulation of KBTBD6 and POP5. Our results demonstrate the utility of telomere length GWAS in the identification of telomere length regulation mechanisms and validate KBTBD6 and POP5 as genes affecting telomere length regulation
The genetic architecture of the human cerebral cortex
The cerebral cortex underlies our complex cognitive capabilities, yet little is known about the specific genetic loci that influence human cortical structure. To identify genetic variants that affect cortical structure, we conducted a genome-wide association meta-analysis of brain magnetic resonance imaging data from 51,665 individuals. We analyzed the surface area and average thickness of the whole cortex and 34 regions with known functional specializations. We identified 199 significant loci and found significant enrichment for loci influencing total surface area within regulatory elements that are active during prenatal cortical development, supporting the radial unit hypothesis. Loci that affect regional surface area cluster near genes in Wnt signaling pathways, which influence progenitor expansion and areal identity. Variation in cortical structure is genetically correlated with cognitive function, Parkinson's disease, insomnia, depression, neuroticism, and attention deficit hyperactivity disorder
31st Annual Meeting and Associated Programs of the Society for Immunotherapy of Cancer (SITC 2016) : part two
Background
The immunological escape of tumors represents one of the main ob- stacles to the treatment of malignancies. The blockade of PD-1 or CTLA-4 receptors represented a milestone in the history of immunotherapy. However, immune checkpoint inhibitors seem to be effective in specific cohorts of patients. It has been proposed that their efficacy relies on the presence of an immunological response. Thus, we hypothesized that disruption of the PD-L1/PD-1 axis would synergize with our oncolytic vaccine platform PeptiCRAd.
Methods
We used murine B16OVA in vivo tumor models and flow cytometry analysis to investigate the immunological background.
Results
First, we found that high-burden B16OVA tumors were refractory to combination immunotherapy. However, with a more aggressive schedule, tumors with a lower burden were more susceptible to the combination of PeptiCRAd and PD-L1 blockade. The therapy signifi- cantly increased the median survival of mice (Fig. 7). Interestingly, the reduced growth of contralaterally injected B16F10 cells sug- gested the presence of a long lasting immunological memory also against non-targeted antigens. Concerning the functional state of tumor infiltrating lymphocytes (TILs), we found that all the immune therapies would enhance the percentage of activated (PD-1pos TIM- 3neg) T lymphocytes and reduce the amount of exhausted (PD-1pos TIM-3pos) cells compared to placebo. As expected, we found that PeptiCRAd monotherapy could increase the number of antigen spe- cific CD8+ T cells compared to other treatments. However, only the combination with PD-L1 blockade could significantly increase the ra- tio between activated and exhausted pentamer positive cells (p= 0.0058), suggesting that by disrupting the PD-1/PD-L1 axis we could decrease the amount of dysfunctional antigen specific T cells. We ob- served that the anatomical location deeply influenced the state of CD4+ and CD8+ T lymphocytes. In fact, TIM-3 expression was in- creased by 2 fold on TILs compared to splenic and lymphoid T cells. In the CD8+ compartment, the expression of PD-1 on the surface seemed to be restricted to the tumor micro-environment, while CD4 + T cells had a high expression of PD-1 also in lymphoid organs. Interestingly, we found that the levels of PD-1 were significantly higher on CD8+ T cells than on CD4+ T cells into the tumor micro- environment (p < 0.0001).
Conclusions
In conclusion, we demonstrated that the efficacy of immune check- point inhibitors might be strongly enhanced by their combination with cancer vaccines. PeptiCRAd was able to increase the number of antigen-specific T cells and PD-L1 blockade prevented their exhaus- tion, resulting in long-lasting immunological memory and increased median survival
Bringing Value-Based Perspectives to Care: Including Patient and Family Members in Decision-Making Processes
n a gap in consistent application of system-level strategies that can effectively translate organizational policies around patient and family engagement into practice.
Methods
The broad objective of this initiative was to develop a system-level implementation strategy to include patient and family advisors (PFAs) at decision-making points in primary healthcare (PHC) based on wellestablished evidence and literature. In this opportunity sponsored by the Canadian Foundation for Healthcare Improvement (CFHI) a co-design methodology, also well-established was applied in identifying and developing a suitable implementation strategy to engage PFAs as members of quality teams in PHC. Diabetes management centres (DMCs) was selected as the pilot site to develop the strategy. Key steps in the process included review of evidence, review of the current state in PHC through engagement of key stakeholders and a co-design approach.
Results
The project team included a diverse representation of members from the PHC system including patient advisors, DMC team members, system leads, providers, Public Engagement team members and CFHI improvement coaches. Key outcomes of this 18-month long initiative included development of a working definition of patient and family engagement, development of a Patient and Family Engagement Resource Guide and evaluation of the resource guide.
Conclusion
This novel initiative provided us an opportunity to develop a supportive system-wide implementation plan and a strategy to include PFAs in decision-making processes in PHC. The well-established co-design methodology further allowed us to include value-based (customer driven quality and experience of care) perspectives of several important stakeholders including patient advisors. The next step will be to implement the strategy within DMCs, spread the strategy PHC, both locally and provincially with a focus on sustainability
Living Guideline for Pediatric Concussion Care
(formally Living Guideline for Diagnosing and Managing Pediatric Concussion