Extracellular Vesicles: An Emerging Clinical Opportunity in Musculoskeletal Disease.

Extracellular vesicles (EVs) are important mediators of cell-to-cell communication in the extracellular space. These membranous nanoparticles carry various molecules, often referred to as "cargo," which are delivered to nearby target cells. In the past decade, developments in nanotechnology have allowed for various new laboratory techniques for the increased utilization of EVs in cellular and animal studies.

Association Between Urinary Biomarkers and CKD in Extremely Low Gestational Age Neonates.

Rationale & Objective: Children born before 28 weeks' gestation are at increased risk of chronic kidney disease (CKD). Urine biomarkers may shed light on mechanistic pathways and improve the ability to forecast CKD. We evaluated whether urinary biomarkers in neonates of low gestational age (GA) are associated with a reduced estimated glomerular filtration rate (eGFR) over time.

Developing a Late-Career Roadmap to Continued Career Engagement.

Professional development needs span the entirety of a radiologist's career. Great strides have been made in the creation of an infrastructure for early career development. Work is ongoing to develop such resources for mid-career radiologists, given the recent recognition of the needs of this group.

Allograft or Synthetic Mesh Extensor Mechanism Reconstruction After TKA Carries a High Risk of Infection, Revision, and Extensor Lag.

Background: Extensor mechanism disruption is a devastating complication after TKA. Extensor mechanism reconstruction can be performed using an allograft or synthetic mesh. Recent studies have disagreed about the durability of these reconstructions.

The role of upadacitinib for the treatment of axial spondyloarthritis.

Janus kinase inhibitors were recently approved for treatment of axial spondyloarthritis following clinical trials demonstrating benefit for symptom control. Upadacitinib treatment resulted in Assessment of SpondyloArthritis International Society 40 response improvement (defined as at least 40% improvement and an absolute improvement in global assessment of disease activity, patient assessment of back pain and other indices) in 45-52% of trial participants with axial spondyloarthritis. We review the data for efficacy and safety of upadacitinib in this patient population.

Risk of Mortality Related to Recurrent Limb Events After Endovascular Revascularization of the Superficial Femoral Artery for Peripheral Artery Disease: The Boston Femoral Artery Endovascular Revascularization Outcomes (Boston FAROUT) Study.

Endovascular revascularization of the superficial femoral artery (SFA) may lead to recurrent ischemic syndromes, revascularization, or amputation. The impact of these events on mortality is unknown. We followed all patients having SFA endovascular revascularization for claudication or chronic limb-threatening ischemia in 2 cardiovascular (CV) divisions in Boston, Massachusetts.

Development and validation of a novel score to predict brain death after out-of-hospital cardiac arrest.

Background And Objectives: Brain death (BD) occurs in 9-24% of successfully resuscitated out-of-hospital cardiac arrests (OHCA). To predict BD after OHCA, we developed a novel brain death risk (BDR) score.

Methods: We identified independent predictors of BD after OHCA in a retrospective, single academic center cohort between 2011 and 2021.

Pilot Study on Percutaneous Delivery of Recombinant Human Bone Morphongenetic Protein-2 Augments Fusion in a Nicotine-impaired Rabbit Fusion Model.

Study Design: A nicotine-impaired spinal fusion rabbit model.

Objective: To examine whether controlled delivery of morselized absorbable collagen sponge recombinant human bone morphogenetic protein-2 (rhBMP2) in a delayed manner postsurgery would allow for improved bone healing.

Summary Of Background Data: The current delivery method of rhBMP-2 during surgery causes a burst of rhBMP-2, which is not sustained.

Health and Healthcare Access for Essential, Nonessential, and Nonworkers During the COVID-19 Pandemic.

Objective: The aim of the study is to describe sociodemographic characteristics, healthcare access, and health status of low-income essential, nonessential, and nonworkers during the COVID-19 pandemic.

Methods: Using survey data (2020-2021) from Wisconsin Medicaid enrollees ( N = 2528), we compared sociodemographics, healthcare access, and health status between essential, nonessential, and nonworkers.

Results: Essential workers had less consistent health insurance coverage and more problems paying medical bills than nonessential and nonworkers.

High Incidence of Acute Kidney Injury Following Antibiotic-Loaded Spacer Insertion for Periprosthetic Joint Infection: An Updated Review of the Literature.

Background: The use of antibiotic-impregnated cement during 2-stage revision arthroplasty for periprosthetic joint infection poses a risk of renal complications following spacer insertion. This systematic review aimed to investigate the rate of acute kidney injury (AKI) following antibiotic-loaded spacer insertion and to identify risk factors associated with this complication.

Methods: A systematic review was performed using PubMed, Cochrane Central, and Scopus databases.

Association Between Hematoma Expansion Severity and Outcome and Its Interaction With Baseline Intracerebral Hemorrhage Volume.

Background And Objectives: Hematoma expansion (HE) is a major determinant of neurologic deterioration and poor outcome in intracerebral hemorrhage (ICH) and represents an appealing therapeutic target. We analyzed the prognostic effect of different degrees of HE.

Methods: This was a retrospective analysis of patients with ICH admitted at 8 academic institutions in Italy, Germany, Canada, China, and the United States.

Race-Based Differences in ST-Segment-Elevation Myocardial Infarction Process Metrics and Mortality From 2015 Through 2021: An Analysis of 178 062 Patients From the American Heart Association Get With The Guidelines-Coronary Artery Disease Registry.

Background: Systems of care have been developed across the United States to standardize care processes and improve outcomes in patients with ST-segment-elevation myocardial infarction (STEMI). The effect of contemporary STEMI systems of care on racial and ethnic disparities in achievement of time-to-treatment goals and mortality in STEMI is uncertain.

Methods: We analyzed 178 062 patients with STEMI (52 293 women and 125 769 men) enrolled in the American Heart Association Get With The Guidelines-Coronary Artery Disease registry between January 1, 2015, and December 31, 2021.

Strokes in Patients With Injection Drug Use and Tricuspid Valve Endocarditis - A Case Series.

In this study, we describe patients from a tertiary care safety-net hospital endocarditis registry with tricuspid valve infective endocarditis (TVIE), and concomitant acute or subacute ischemic stroke predominantly associated with injection drug use (IDU). We retrospectively obtained data pertinent to neurologic examinations, history of injection drug use (IDU), blood cultures, transthoracic/transesophageal echocardiography (TTE/TEE), neuroimaging, and Modified Rankin Scale (mRS) scores at discharge. Only those patients with bacteremia, tricuspid valve vegetations, and neuroimaging consistent with acute to subacute ischemic infarction and microhemorrhages in two cases were included in this series.