Publications by authors named "Stevenson L"

Background: Primary care providers (PCPs) may modify their antibiotic prescription practices if aware of their potentially damaging impact.

Methods: We conducted a cluster randomized controlled trial at 12 Veterans Affairs community-based outpatient clinics. PCPs at clinics randomized to the intervention group received quarterly antibiotic use reports with feedback about antibiotics prescribed for acute respiratory infections and adverse event letters alerting about infection or antibiotic-resistant gram-negative bacteria among their patients.

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The incidence of oesophageal adenocarcinoma (OAC) has risen six-fold in western countries over the last forty years but survival rates have only marginally improved. Hyperactivation of the PI3K-AKT-mTOR pathway is a common occurrence in OAC, driving cell survival, proliferation and resistance to chemotherapeutic agents. Inhibition of AKT has been explored as a treatment strategy with limited success and current inhibitors have failed to progress through clinical trials.

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  • Mercury is a toxic substance that accumulates in fish, particularly in its organic form, methylmercury (MeHg), which poses risks to human health through contaminated fish consumption.
  • Understanding how mercury accumulates in aquatic species requires analyzing several biokinetic parameters, including uptake rate, assimilation efficiency, and efflux rate, which were studied across 38 fish and 34 aquatic invertebrate species, yielding 502 total data points.
  • The study found that the form of mercury and various environmental factors like water type and organism weight significantly influenced these parameters, highlighting differences between fish and invertebrates, and challenging previous assumptions about the impact of environmental conditions on mercury accumulation in aquatic ecosystems.
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  • TTN encodes the protein titin and is commonly associated with rare variants in patients diagnosed with atrial fibrillation (AF) during genetic testing.
  • The study compared characteristics and outcomes of patients with AF having pathogenic TTN variants to those without such variants, revealing that TTN(+) patients experience more persistent AF and require more cardioversions.
  • Findings indicate that nearly 50% of TTN(+) AF patients develop serious heart issues, emphasizing the importance of specialized evaluation and management for these individuals.
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  • - The DEBIOC trial explored the safety and efficacy of neoadjuvant treatment using oxaliplatin and capecitabine (Xelox) with or without AZD8931 in patients with oesophageal adenocarcinoma, showing moderate safety but limited effectiveness.
  • - Researchers analyzed genetic data from 25 pre-treatment and 18 post-treatment biopsy samples to examine how these treatments influenced biological pathways related to cancer through advanced software tools.
  • - Their findings identified three molecular subgroups linked to immune response, with treatment affecting immune signaling and tumor-infiltrating lymphocytes, while the addition of AZD8931 promoted a less favorable immunosuppressive environment and common cancer resistance mechanisms.
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Between May 2022 and September 2023, the World Health Organization (WHO) Regional Office for Europe engaged in a collaborative effort with affected communities to address the outbreak of mpox in the region. This concerted endeavor led to the development of a risk communication campaign specifically tailored to address the perceptions and needs of the target audience, thereby contributing to the control and the long-term goal of mpox elimination. Various community engagement interventions were implemented, including the establishment of an informal civil society organizations' working group to provide feedback on the WHO mpox campaign, webinars targeting event organizers, and roundtable discussions with country-level responders.

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Background: Psychosocial evaluations to assess candidacy for advanced heart failure therapies are not standardized across institutions, potentially contributing to disparities in approval for advanced therapies. Remediation rates of psychosocial stressors among patients with advanced HF and reconsideration for advanced therapies have not been well-described.

Methods And Results: We performed a retrospective, single-center study of 647 adults evaluated for heart transplant and ventricular assist device implantation between 2014 and 2020, of whom 89 (14%) were denied for psychosocial stressors, including caregiver, substance use, housing, financial, or mental health concerns.

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Objective: Chondrolaryngoplasty, also known as thyroid cartilage reduction, alleviates gender dysphoria by reducing the thyroid cartilage to conform to a patient's gender identity. Reduction of the thyroid cartilage prominence ("Adam's apple") is often performed with a scalpel, but in cases of cartilage calcification, rongeurs or drills are utilized. This study aims to characterize the success rate with scalpel-only excision and relate this to patient age and operative time.

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  • * A study involving 1,366 participants found that while having a pathogenic variant in any CM or arrhythmia gene wasn't significantly linked to AF recurrence, variants in the ALVC gene group (especially LMNA) were associated with a higher risk.
  • * Overall, AF ablation appears beneficial for most patients with these variants, but those with ALVC variants may face a greater chance of experiencing recurrence of arrhythmias.
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Approximately half of the lubricants sold globally find their way into the environment. The need for Environmentally Acceptable Lubricants (EALs) is gaining increased recognition. A lubricant is composed of a base oil and multiple functional additives.

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  • * The study, called PROACTIVE-HF, assessed the safety and effectiveness of this monitoring method in 456 patients with chronic heart failure across various centers in the US and Europe.
  • * Results showed a 6-month event rate of 0.15 hospitalizations or deaths per patient, far below the goal of 0.43, with a very high safety rate for the device.
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  • Diuresis is crucial for treating patients with acute decompensated heart failure (ADHF) to relieve fluid buildup, but there's no one-size-fits-all diuretic strategy that has proven to be the best.
  • Current research highlights the connection between urine sodium levels and patient outcomes, suggesting that monitoring urine chemistry could help tailor diuretic treatments.
  • The review aims to consolidate existing studies on diuretic management, identify what we still don't know, and outline ongoing clinical trials that explore urine sodium-guided diuresis in ADHF management.
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  • Immunogenicity guidance in the biopharmaceutical industry has evolved significantly over the past 20 years due to initial negative reactions with erythropoietin, leading to stringent practices for all biotherapeutic drugs.
  • A recent workshop by the European Bioanalysis Forum highlighted the need to reassess current immunogenicity testing methods, drawing from two decades of experience to suggest more relevant approaches.
  • The proposed new paradigm encourages a context-based assessment of immunogenicity risk, viewing it as a pharmacodynamic biomarker, which aims to streamline testing strategies and better allocate resources for patient benefit.
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Background: Left ventricular assist device (LVAD) use remains uncommon in advanced heart failure (HF) patients not dependent on inotropes.

Objectives: Before considering a randomized trial comparing a strategy of earlier use of LVAD to continued medical therapy, a better understanding is needed of the clinical trajectory of ambulatory patients with advanced systolic HF on optimal guideline-directed medical therapy (GDMT).

Methods: REVIVAL enrolled 400 patients with advanced ambulatory systolic HF, ≥1 HF mortality risk marker (≥2 HF hospitalizations past year; or HF hospitalization and high natriuretic peptide; or no HF hospitalizations but low peak oxygen consumption, 6-minute walk, serum sodium, HF survival score or Seattle HF model predicted survival), and no LVAD contraindication at 21 LVAD centers from July 2015 to June 2016.

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Classically, ATM is known for its role in sensing double-strand DNA breaks, and subsequently signaling for their repair. Non-canonical roles of ATM include transcriptional silencing, ferroptosis, autophagy and angiogenesis. Angiogenesis mediated by ATM signaling has been shown to be VEGF-independent via p38 signaling.

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The Diabetes Self-Management Education and Support (DSMES) program provides education and medical monitoring of diabetes to Veterans through the Virtual Medical Center (VMC). Qualitative interviews were conducted with 15 key stakeholders (4-DSMES VMC trainers, 5-clinical faculty, and 6-Veterans) from across Ohio urban and rural populations for up to 1h about their experiences using the program and suggestions for improvement. All the Veterans interviewed were able to access care within the DSMES VMC and reported a positive experience using the program, and improved diabetes self-management.

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Background: Trajectories of mortality after primary prevention implantable cardioverter-defibrillator (ICD) placement for older patients with heart failure during or soon after acute hospitalization have not been assessed.

Objective: The purpose of this study was to compare trajectories of mortality after primary prevention ICD placement during or soon after acute cardiac or non-cardiac hospitalization.

Methods: We identified older patients with heart failure undergoing primary prevention ICD placement using 20% Medicare data (2008-2018).

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Background: An angiotensin receptor-neprilysin inhibitor (ARNI) is the preferred renin-angiotensin system (RAS) inhibitor for heart failure with reduced ejection fraction (HFrEF). Among eligible patients, insurance status and prescriber concern regarding out-of-pocket costs may constrain early initiation of ARNI and other new therapies.

Objectives: In this study, the authors sought to evaluate the association of insurance and other social determinants of health with ARNI initiation at discharge from HFrEF hospitalization.

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Intimate partner violence (IPV) is a global public health issue that has grave physical and mental health consequences for millions of women. The judicial system plays a critical role in responding to IPV principally through the criminal justice system, family law, and/or child welfare jurisdictions. However, victims/survivors who interact with the legal system report negative experiences.

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