Publications by authors named "Hastings S"

Background: Existing risk scores assessing geriatric vulnerability in the emergency department (ED) have shown limited predictive power, especially in diverse populations. We investigated the relationship of a quick and easy-to-administer geriatric vulnerability scoring system with functional decline and mortality in older patients admitted to multiple hospitals through the ED in the United States (US) and Brazil (BR).

Method: Federated, international, multicenter observational study of hospitalized ED patients aged ≥ 65 from US and BR.

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Importance: Older adults often require specialized health care expertise, but the effects of geriatrics-focused models of primary care have not been fully evaluated.

Objective: To compare the effects of geriatrics-focused primary care vs traditional primary care for older patients in the Veterans Affairs (VA) health care system.

Design, Setting, And Participants: In this cohort study, geriatrics-focused primary care and traditional primary care patient dyads matched on variables associated with geriatrics-focused primary care entry and outcomes were enrolled from VA medical centers with operational geriatrics-focused primary care clinics serving 500 or more patients annually in fiscal year 2016.

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Purpose: AIM-Back is an embedded pragmatic clinical trial (ePCT) with cluster randomization designed to increase access and compare the effectiveness of two different non-pharmacological care pathways for low back pain (LBP) delivered within the Veteran Administration Health Care System (VAHCS). This manuscript describes baseline characteristics of AIM-Back participants as well as the representativeness of those referred to the AIM-Back program by sex, age, race, and ethnicity, relative to Veterans with low back pain at participating clinics.

Participants: To be eligible for AIM-Back, Veterans were referred to the randomized pathway at their clinic by trained primary care providers (Referral cohort).

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Background: Almost 40% of persons living with dementia make an emergency department (ED) visit each year. One of the most impactful and costly elements of their ED care is the decision to discharge or admit them to the hospital-the "disposition" decision. When more than one reasonable option exists regarding a health care decision, such as the decision to admit or not, it often requires a complex conversation between patients, care partners, and ED providers, ideally involving shared decision-making.

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Background: Stopping or reducing risky or unneeded medications ("deprescribing") could improve older adults' health. Electronic health data can support observational and intervention studies of deprescribing, but there are no standardized measures for key variables, and healthcare systems have differing data types and availability. We developed definitions for chronic medication use and discontinuation based on electronic health data and applied them in a case study of benzodiazepines and Z-drugs in five diverse US healthcare systems.

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Objective: This manuscript describes the uptake of the AIM-Back Pain Navigator Pathway (PNP) designed to encourage use of non-pharmacologic care options within the Veterans Health Administration (VHA).

Design: This manuscript describes the implementation of a telehealth intervention from one arm of a multisite, embedded, cluster-randomized pragmatic trial comparing the effectiveness of two novel clinical care pathways that provide access to non-pharmacologic care for Veterans with low back pain (LBP).

Setting: Ten VHA clinics.

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Disparities in cancer diagnosis, treatment, and outcomes based on self-identified race and ethnicity (SIRE) are well documented, yet these variables have historically been excluded from clinical research. Without SIRE, genetic ancestry can be inferred using single-nucleotide polymorphisms (SNPs) detected from tumor DNA using comprehensive genomic profiling (CGP). However, factors inherent to CGP of tumor DNA increase the difficulty of identifying ancestry-informative SNPs, and current workflows for inferring genetic ancestry from CGP need improvements in key areas of the ancestry inference process.

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Objectives: Adults with dementia are frequently prescribed antipsychotic medications despite concerns that risks outweigh benefits. Understanding conditions where antipsychotics are initially prescribed, such as hospitalization, may offer insights into reducing inappropriate use.

Design, Setting, Participants: Retrospective cohort study of community-dwelling veterans with dementia aged ≥68 with VA hospitalizations in 2014, using Veterans Health Administration (VA) and Medicare data.

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Background: Lung cancer screening (LCS) can reduce lung cancer mortality but has potential harms for patients. A shared decision-making (SDM) conversation about LCS is required by the Centers for Medicare & Medicaid Services (CMS) for LCS reimbursement. To overcome barriers to SDM in primary care, this protocol describes a telehealth decision coaching and navigation intervention for LCS in primary care clinics delivered by patient navigators.

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We present an enhancer AAV toolbox for accessing and perturbing striatal cell types and circuits. Best-in-class vectors were curated for accessing major striatal neuron populations including medium spiny neurons (MSNs), direct and indirect pathway MSNs, as well as Sst-Chodl, Pvalb-Pthlh, and cholinergic interneurons. Specificity was evaluated by multiple modes of molecular validation, three different routes of virus delivery, and with diverse transgene cargos.

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Background: Emergency department (ED) visits at end-of-life may cause financial strain and serve as a marker of inadequate access to community services and health care. We sought to examine end-of-life ED use, total healthcare spending, and out-of-pocket spending in a nationally representative sample.

Methods: Using Medicare Current Beneficiary Survey data, we conducted a pooled cross-sectional analysis of Medicare beneficiaries aged 65+ years with a date of death between July 1, 2015 and December 31, 2021.

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Article Synopsis
  • This study investigates the relationship between stopping benzodiazepines or z-drugs and the risk of falls in older adults, focusing on patients from an academic health system between 2017 and 2020.
  • The research finds that there was no significant reduction in fall risk for those who discontinued these medications, but results varied based on how discontinuation was defined.
  • The authors suggest that future studies should explore different definitions of medication discontinuation and consider other health outcomes to gain a clearer understanding of the impacts.
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Introduction: Older adults are at high risk of adverse health outcomes in the post-emergency department (ED) discharge period. Prior work has shown that discharged older adults have variable understanding of their discharge instructions which may contribute to these outcomes. To identify discharge comprehension gaps amenable to future interventions, we utilize meta-analysis to determine patient comprehension across five domains of discharge instructions: diagnosis, medications, self-care, routine follow-up, and return precautions.

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  • There is a lack of effective contextual measures to predict the adoption of evidence-based programs in clinical settings, which can hinder their implementation.
  • This study focused on Veterans Affairs hospitals and analyzed various organizational characteristics, such as resilience and readiness for change, to see how they influenced the adoption of a walking program called STRIDE.
  • The results showed that factors like hospital complexity, resource availability, and past implementation experience significantly affected adoption rates, with hospitals demonstrating stronger organizational support being more successful in adopting the program.
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  • The study investigates the differences in immune gene expression and survival outcomes between HER2-low and HER2-zero breast cancers, focusing on the tumor immune microenvironment (TME).
  • Comprehensive genomic analysis was conducted on samples from 129 patients with advanced HER2-negative breast cancer, assessing immune-related gene expressions and their correlation with patient survival rates.
  • Results indicate that while there were no significant differences in immune gene expression between HER2-low and HER2-zero cancers, patients with HER2-low tumors exhibited a higher rate of estrogen receptor positivity and significantly better overall survival.
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Background: Palliative care improves the quality of life for people with life-limiting conditions, which are common among older adults. Despite the Veterans Health Administration (VA) outpatient palliative care expansion, most research has focused on inpatient palliative care. This study aimed to compare veteran characteristics and hospice use for palliative care users across care settings (inpatient vs.

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Importance: Vascular complications after transfemoral transcatheter aortic valve implantation (TAVI) remain an important cause of procedure-related morbidity. Routine reversal of anticoagulation with protamine at the conclusion of transfemoral TAVI could reduce complications, but data remain scarce.

Objective: To evaluate the efficacy and safety of routine protamine administration after transfemoral TAVI.

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  • The study aimed to evaluate the impact of the iHI-FIVES caregiver training program on the number of days Veterans spend away from home and the well-being of their family caregivers.
  • Involvement included 898 Veterans from 8 medical centers, comparing data from before and after implementing the program through a randomized trial.
  • Results indicated a 42% reduction in Veteran days not at home after joining iHI-FIVES, but no significant changes were found in caregiver well-being over the same period.
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Background: Time in healthcare facilities is associated with worse patient quality of life (QoL); however, impact on family caregiver QoL is unknown. We evaluate care recipient days not at home-days in the emergency department (ED), inpatient (IP) care, and post-acute care (PAC)-to understand how care recipient days not at home correspond to family caregiver QoL.

Methods: Secondary data were linked to care recipient utilization data.

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Article Synopsis
  • The study aimed to evaluate the effectiveness of a team collaboration strategy called CONNECT in improving the implementation of a caregiver training program for veterans, known as iHI-FIVES.
  • It involved a stepped wedge cluster randomized trial across eight VA medical centers, comparing the outcomes of sites using CONNECT plus technical support (REP) against those using REP alone.
  • Findings showed high training fidelity (88%), but better reach (22% vs. 14%) and fidelity (95% vs. 80%) at non-CONNECT sites, indicating that CONNECT did not significantly enhance team functioning or program reach.
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Objective: To examine the relationship between site-level adaptation and early adoption of Caregivers Finding Important Resources, Support, and Training (FIRST) training during national implementation across diverse Veteran Health Administration (VA) medical centers.

Data Sources And Study Setting: We enrolled and evaluated 25 VA medical centers (VAMCs). Along with administrative data on site characteristics, we examined site-reported data on adaptations and intervention adoption, defined as ≥4 training classes delivered to ≥5 caregivers at 6 months from April through October 2022.

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Background: There is increasing recognition of the importance of maximizing program-setting fit in scaling and spreading effective programs. However, in the context of hospital-based mobility programs, there is limited information on how settings could consider local context and modify program characteristics or implementation activities to enhance fit. To fill this gap, we examined site-initiated adaptations to STRIDE, a hospital-based mobility program for older Veterans, at eight Veterans Affairs facilities across the United States.

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  • Nearly half of the 39 million people living with HIV are affected by HIV-associated neurocognitive disorder (HAND), which includes symptoms ranging from cognitive impairment to dementia, and currently has no established treatment.
  • The HIV protein TAT is believed to contribute to HAND by causing neurotoxicity and resulting in network hyperexcitability that correlates with cognitive decline.
  • The study demonstrates that the antiepileptic drug levetiracetam (LEV) can alleviate excitatory synaptic transmission issues and cognitive deficits in mice expressing the TAT protein, suggesting LEV might be a potential treatment for HAND.
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Introduction: Younger patients with non-small cell lung cancer (NSCLC) (<50 years) represent a significant patient population with distinct clinicopathological features and enriched targetable genomic alterations compared to older patients. However, previous studies of younger NSCLC suffer from inconsistent findings, few studies have incorporated sex into their analyses, and studies targeting age-related differences in the tumor immune microenvironment are lacking.

Methods: We performed a retrospective analysis of 8,230 patients with NSCLC, comparing genomic alterations and immunogenic markers of younger and older patients while also considering differences between male and female patients.

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Article Synopsis
  • The study addresses the challenges of implementing evidence-based healthcare programs in inpatient settings, focusing on the need for strategies to enhance quality improvement.
  • It evaluates CONNECT, an intervention based on complexity science, which aims to boost team readiness and improve the implementation of the 'Assisted Early Mobility for Hospitalized Older Veterans' program (STRIDE).
  • Results indicate that VAMCs utilizing CONNECT had significantly higher program reach while showing similar fidelity as those that did not use the intervention, along with improvements in team function.
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