Anesthesiology
Audio Summaries

Fragility Index of Randomized Clinical Trials in Perioperative Anesthesia: A Methodological Survey of Guideline-Supporting Evidence

The authors aimed to evaluate the Fragility Index (FI), Reverse Fragility Index (rFI), and Fragility Quotient (FQ) of randomized controlled trials (RCTs) cited in perioperative anesthesia guidelines, assessing how trial characteristics influence fragility. Their analysis of 161 superiority trials revealed that these trials generally had modest FI values, indicating that statistical significance often hinges on a limited number of outcome events. The study suggests that fragility metrics should be used alongside traditional measures of trial quality to better interpret the evidence supporting perioperative practices.

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

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

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.

Effect of Pre-operative Intravenous Crystalloid Bolus on Post-Induction Blood Pressure - a randomized blinded intervention trial

This study investigates whether administering a pre-operative intravenous crystalloid bolus can reduce the incidence of post-induction hypotension in high-risk patients undergoing major non-cardiac surgery. The randomized trial found no significant difference in the time-weighted average mean arterial pressure below 65 mmHg between patients receiving the crystalloid bolus and those receiving standard care, suggesting that pre-operative crystalloid administration does not effectively prevent post-induction hypotension.

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

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.

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

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.

A Retrospective Study on Time Impact of Major Trauma Patients Requiring Access to the Operating Room on the Anesthesia Department of a Pediatric Trauma Center

The authors aimed to analyze the characteristics and surgical access patterns of pediatric major trauma patients at The Hospital for Sick Children, focusing on the impact on the anesthesia department. They found that 19.6% of trauma patients required surgery, with varying access times to the operating room, and identified a correlation between the number of surgical procedures and length of hospital stay. The study highlights the significant resource demands of major trauma cases and suggests the need for further research to optimize intra-hospital flow and resource utilization.

Effects of Esketamine on Emergence Delirium in Children Undergoing Sevoflurane Anesthesia: A Systematic Review, Meta-Analysis, and Trial Sequential Analysis

This systematic review and meta-analysis aimed to evaluate the efficacy and safety of esketamine in preventing emergence delirium in children undergoing sevoflurane anesthesia. The findings indicate that esketamine significantly reduces the incidence of emergence delirium and postoperative pain, while also decreasing postoperative nausea and vomiting, although it is associated with a modest increase in extubation time. Overall, the evidence suggests that esketamine is a promising option for improving postoperative outcomes in pediatric patients.

[¹⁷⁷Lu]Lu-PSMA-617 in patients with PSMA-positive metastatic androgen pathway modulator-naive/sensitive prostate cancer (PSMAddition): a phase 3 randomised, controlled trial

The PSMAddition trial aimed to evaluate the efficacy and safety of combining [^177Lu]Lu-PSMA-617 with androgen deprivation therapy (ADT) and androgen receptor pathway inhibitors (ARPI) in patients with PSMA-positive metastatic androgen pathway modulator-naive/sensitive prostate cancer. The results indicated that this combination significantly improved radiographic progression-free survival compared to the control group, despite a higher incidence of adverse events, suggesting it may be a viable new treatment option for this patient population.

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

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.