Delayed or forgone medical care associated with increased resource utilization and health care expenditures among patients with peripheral artery disease in the United States.

Background: PAD affects >12 million Americans and poses significant financial burdens on patients, but the relationship between delayed/forgone (D/F) care and resource use in this population is unknown. We sought to assess the relationship between D/F care, resource use, and health care expenditures among patients with PAD.

Methods: Adults with PAD in the US were identified in the Medical Expenditure Panel Survey for years 2007-2017.

Racial, Socioeconomic, and Geographic Disparities in Preamputation Vascular Care for Patients With Chronic Limb-Threatening Ischemia.

Background: Black patients, those with low socioeconomic status (SES), and those living in rural areas have elevated rates of major lower extremity amputation, which may be related to a lack of subspecialty chronic limb-threatening ischemia care. We evaluated the association between race, rurality, SES, and preamputation vascular care.

Methods: Among patients aged 66 to 86 years with fee-for-service Medicare who underwent major lower extremity amputation for chronic limb-threatening ischemia from July 2010 to December 2019, we compared the proportion who received vascular care in the 12 months before amputation by race (Black versus White), rurality, and SES (dual eligibility for Medicaid versus no dual eligibility) using multivariable logistic regression adjusting for clinical and demographic covariates.

Deep transcranial magnetic stimulation for adolescents with treatment-resistant depression: Behavioral and neural correlates of clinical improvement.

Background: Affective bias toward negativity is associated with depression and may represent a promising treatment target. Stimulating the dorsolateral prefrontal cortex (dlPFC) with deep Transcranial Magnetic Stimulation (dTMS) could lead to shifts in affective bias. The current study examined behavioral and neural correlates of affective bias in the context of dTMS in adolescents with treatment-resistant depression (TRD).

Different Grey Matter Microstructural Patterns in Cognitively Healthy Versus Typical Ageing Healthy Versus Typical Brain Ageing.

Ageing is a complex phenomenon affecting a wide range of coexisting biological processes. The homogeneity of the studied population is an essential parameter for valid interpretations of outcomes. The presented study capitalises on the MRI data available in the Human Connectome Project-Aging (HCP-A) and, within individuals over 55 years of age who passed the HCP-A section criteria, compares a subgroup of 37 apparently neurocognitively healthy individuals selected based on stringent criteria with 37 age and sex-matched individuals still representative of typical ageing but who did not pass the stringent definition of neurocognitively healthy.

Contribution margins and utilization of transcatheter aortic valve replacement versus surgical aortic valve replacement in the Medicare population.

Background: Hospitals and health systems must balance the demand for transcatheter aortic valve replacement (TAVR) against financial sustainability. Patients may be eligible for both TAVR and surgical aortic valve replacement (SAVR), but financial realities for hospitals may affect differential access to those therapies. We sought to understand the landscape of costs and reimbursement for TAVR and SAVR in the US and to understand the association of procedural reimbursement with receipt of either.

Association of Homelessness and Unstable Housing With Cardiovascular Care Utilization Among Veterans.

Background: Veterans are disproportionately more likely to experience homelessness and unstable housing (HUH) compared with the general population. Cardiovascular disease is the leading cause of death among Veterans experiencing HUH. We aimed to understand whether HUH status among Veterans with preexisting cardiovascular disease was associated with disparities in cardiovascular care access and utilization.

Resting-state functional MRI of the nose as a novel investigational window into the nervous system.

Besides being responsible for olfaction and air intake, the nose contains abundant vasculature and autonomic nervous system innervations, and it is a cerebrospinal fluid clearance site. Therefore, the nose is an attractive target for functional MRI (fMRI). Yet, nose fMRI has not been possible so far due to signal losses originating from nasal air-tissue interfaces.

Projections of Extreme Temperature-Related Deaths in the US.

Importance: Extreme heat in the US is increasing due to climate change, while extreme cold is projected to decline. Understanding how extreme temperature along with demographic changes will affect population health is important for devising policies to mitigate the health outcome of climate change.

Objective: To assess the burden of extreme temperature-related deaths in the contiguous US currently (2008-2019) and estimate the burden in the mid-21st century (2036-2065).

Reducing thermal noise in high-resolution quantitative magnetic resonance imaging rotating frame relaxation mapping of the human brain at 3 T.

Quantitative maps of rotating frame relaxation (RFR) time constants are sensitive and useful magnetic resonance imaging tools with which to evaluate tissue integrity in vivo. However, to date, only moderate image resolutions of 1.6 x 1.

Racial, Ethnic, Socioeconomic, and Geographic Inequities in Access to Mechanical Circulatory Support.

Background: Hospital admissions for cardiogenic shock have increased in the United States. Temporary mechanical circulatory support (tMCS) can be used to acutely stabilize patients. We sought to evaluate the presence of racial, ethnic, and socioeconomic inequities in access to MCS in the United States among patients with cardiogenic shock.

Hypoxia within subcutaneously implanted macroencapsulation devices limits the viability and functionality of densely loaded islets.

Introduction: Subcutaneous macroencapsulation devices circumvent disadvantages of intraportal islet therapy. However, a curative dose of islets within reasonably sized devices requires dense cell packing. We measured internal PO2 of implanted devices, mathematically modeled oxygen availability within devices and tested the predictions with implanted devices containing densely packed human islets.

Racial and Ethnic Disparities in Implantable Cardioverter-Defibrillator Utilization: A Contemporary Review.

Purpose Of Review: Sudden cardiac arrest is associated with high morbidity and mortality. Despite having a disproportionate burden of sudden cardiac death (SCD), rates of primary and secondary prevention of SCD with implantable cardioverter-defibrillator (ICD) therapy are lower among eligible racially minoritized patients. This review highlights the racial and ethnic disparities in ICD utilization, associated barriers to ICD care, and proposed interventions to improve equitable ICD uptake.

Prediction of tuberculosis clusters in the riverine municipalities of the Brazilian Amazon with machine learning.

Objective: Tuberculosis (TB) is the second most deadly infectious disease globally, posing a significant burden in Brazil and its Amazonian region. This study focused on the "riverine municipalities" and hypothesizes the presence of TB clusters in the area. We also aimed to train a machine learning model to differentiate municipalities classified as hot spots vs.

Deep transcranial magnetic stimulation for adolescents with treatment-resistant depression: A preliminary dose-finding study exploring safety and clinical effectiveness.

Background: Transcranial magnetic stimulation (TMS) is an intervention for treatment-resistant depression (TRD) that modulates neural activity. Deep TMS (dTMS) can target not only cortical but also deeper limbic structures implicated in depression. Although TMS has demonstrated safety in adolescents, dTMS has yet to be applied to adolescent TRD.

Difference in the physical and mental health of informal caregivers pre- and post-COVID-19 National Emergency Declaration in the United States.

Background: The burden of informal caregiving represents a chronic stressor for the informal caregivers (ICs). The study investigates differences in the physical and mental health of ICs and that of non-informal caregivers before and during COVID-19.

Methods: We used data from the 2019/2020 Behavioral Risk Factor Surveillance System (BRFSS) to investigate differences in the rates of days of poor physical and mental health among ICs compared to non-informal caregivers before and after the COVID-19 National Emergency Declaration (NED).