Critical care medicine
Audio Summaries

Rethinking Muscle Wasting in Critical Illness: A Systematic Review and Meta-Analysis of Myofiber Size and Protein Turnover

Aug 7, 2026

The authors aimed to investigate the biological mechanisms underlying skeletal muscle dysfunction in critically ill adults by conducting a systematic review and meta-analysis of myofiber size and protein turnover. They found that myofiber cross-sectional area was significantly reduced in critically ill patients compared to controls, while protein synthesis rates did not differ significantly; however, markers of protein degradation were notably elevated. These findings suggest that muscle wasting in critical illness is driven by complex biological changes, including myofiber atrophy and increased protein degradation.

Telemedicine Critical Care Billing For Hospitalized Medicare Fee-For-Service Beneficiaries, 2018-2024

Aug 7, 2026

The authors aimed to characterize telemedicine critical care (TCC) billing practices among hospitalized Medicare Fee-For-Service beneficiaries before, during, and after the COVID-19 pandemic. They found that TCC billing increased from 0.002% pre-pandemic to 0.01% during and after the pandemic, with notable disparities in utilization based on hospital type and patient characteristics. The study highlights the need for further research to understand the clinical and economic implications of this billing trend.

Geographic Access to Care and Mortality in Cardiogenic Shock: A Nationwide Cohort Analysis

Aug 7, 2026

The authors aimed to determine the impact of regional disparities in hospital arrival times on mortality rates among patients with cardiogenic shock (CS). Their nationwide cohort study revealed that longer hospital arrival times were significantly associated with increased in-hospital and long-term mortality, highlighting the need for improved access to care through coordinated regional efforts.

Targeted Temperature Management at 35°C vs. 37°C for Heatstroke in ICU: A Pilot Randomized Controlled Trial

Aug 6, 2026

The authors aimed to evaluate the feasibility of a trial comparing targeted temperature management (TTM) at 35°C versus 37°C in intubated heatstroke patients, while also gathering preliminary data on safety and clinical outcomes. The pilot study found that while TTM at 35°C was operationally feasible, it was associated with significantly higher rates of severe gastrointestinal injury and arrhythmias, without demonstrating benefits in survival or functional outcomes. Consequently, the authors suggest that this hypothermia strategy should not be routinely implemented in ICU management of heatstroke.

Acute Kidney Injury Induces Neurological Impairment Through Early Blood-Brain Barrier Disruption and Endothelial Transcytosis in Mice

Aug 6, 2026

This study investigates the mechanisms underlying neurological impairment associated with acute kidney injury (AKI) by examining blood-brain barrier (BBB) disruption in a mouse model. The authors found that AKI leads to significant neurological deficits and increased BBB permeability, evidenced by cerebral extravasation of Evans blue and enhanced transcytosis of extracellular vesicles in cerebral endothelial cells. These findings suggest that early BBB disruption may play a critical role in the cognitive complications observed in AKI.

Association Between In-Hospital Mortality and ICU Patient Volume at the Facility-Level Stratified by Severity

Aug 5, 2026

The authors aimed to investigate the relationship between ICU patient volume and in-hospital mortality, specifically stratified by the severity of illness as measured by Sequential Organ Failure Assessment (SOFA) scores. Their findings indicate that while total ICU volume did not significantly impact mortality, higher volumes of patients with SOFA scores above 5 were associated with reduced in-hospital mortality, with this inverse relationship becoming more pronounced at higher severity levels.

Prognostic Accuracy of the Phoenix Sepsis Criteria for Mortality in Children With Suspected Infection: A Systematic Review and Meta-Analysis

Aug 5, 2026

The authors aimed to evaluate the prognostic accuracy of the Phoenix Sepsis Criteria (PSC) for predicting in-hospital mortality in children with suspected infections and to compare its performance with the International Pediatric Sepsis Consensus Conference (IPSCC) criteria. Their systematic review and meta-analysis found that the PSC demonstrated better sensitivity and specificity than the IPSCC, although its performance varied by clinical setting, highlighting the need for further validation and context-specific clinical decision support tools.

Renal Resistive Index Responsiveness to a Mean Arterial Pressure Test As a Guide for Mean Arterial Pressure Target in the Early Phase of Septic Shock: A Physiological Study

Aug 3, 2026

This study aimed to determine whether changes in renal resistive index (RRI) during a mean arterial pressure (MAP) test could guide the selection of MAP targets to improve renal function in patients experiencing early septic shock. The findings revealed that while RRI responders did not show improved renal outcomes with higher MAP targets, RRI nonresponders experienced increased urine output at elevated MAP levels, suggesting that RRI may help identify patients who could benefit from higher MAP interventions.

H3.1 Nucleosomes to Predict Renal Replacement Therapy and Mortality in Sepsis-A Secondary Analysis of the SISPCT Randomized Control Trial

Aug 3, 2026

The authors aimed to determine whether plasma H3.1 nucleosome levels could serve as predictive biomarkers for the need for renal replacement therapy (RRT) and 28-day mortality in patients with sepsis and septic shock. Their analysis revealed that elevated admission H3.1 levels were significantly associated with increased mortality and a higher likelihood of requiring RRT, suggesting that H3.1 nucleosomes may be valuable indicators of patient outcomes in sepsis.

Critical Care Aggression and Violence Events (CAVE) Against Nurses in the ICU: Epidemiology and Risk Factors for Recurrence

Jul 24, 2026

The authors aimed to quantify and characterize incidents of aggression and violence against nurses in the ICU, identify associated clinical characteristics, and explore predictors of recurrent incidents. Their retrospective study found that 14% of shifts reported such incidents, predominantly involving patients, with recurrent violence linked to longer ICU stays and specific types of initial aggression. While staff harm was infrequent, patient complications were common, highlighting the need for targeted interventions in managing aggression and violence in critical care settings.