Minimally invasive treatment with radiofrequency ablation and kyphoplasty for avascular necrosis of the spine in sickle cell disease: illustrative case.

Background: Avascular necrosis (AVN) of the spine is a rare sequela of chronic sickle cell disease (SCD) in which the shape of the sickled red blood cells interfere with the normal vascular supply of vertebral bodies. In this report, the authors describe a case of progressive spinal AVN treated with radiofrequency ablation (RFA) and kyphoplasty for the patient's persistent lower back pain.

Observations: A 38-year-old male with long-standing spinal AVN due to SCD had been managed conservatively with hydroxyurea and oral opioid analgesics for several years until breakthrough episodes of low-back pain began to occur with an inability to perform activities of daily life.

Impact of nebulization versus metered-dose inhaler utilization on viral particle dispersion in patients with COVID-19.

Background: Conflicting guidance exists regarding the characterization of nebulization as an aerosol-generating procedure and subsequent risk of transmission of SARS-CoV-2 to healthcare workers.

Aim/objective: This study sought to address whether SARS-CoV-2 viral load distribution was impacted by bronchodilator delivery via nebulizer versus metered-dose inhaler (MDI).

Methods: Adults infected with COVID-19 were enrolled and received a single dose of albuterol sulfate nebulized solution (2.

HIV Screening in a Sample of US Emergency Departments, 2022-2023.

Despite serving populations emphasized in the Ending the HIV Epidemic Initiative, emergency departments (EDs) infrequently offer routine HIV screening. The objective of this study was to characterize US EDs by whether they screen for HIV and to explore factors associated with screening. We surveyed a random sample of US ED directors to obtain data on ED-level and patient-level characteristics, as well as information on directors' perceived barriers to implementing preventive health services.

Trait networks: Assessing marine community resilience and extinction recovery.

Extensive global habitat degradation and the climate crisis are tipping the biosphere toward a "sixth" mass extinction and marine communities will not be spared from this catastrophic loss of biodiversity. The resilience of marine communities following large-scale disturbances or extinction events is mediated by the life-history traits of species and their interplay within communities. The presence and abundance of traits in communities provide proxies of function, but whether the breakdown of their associations with species loss can delineate functional loss remains unclear.