Defibrillating the Data

The St. Vincent's Emergency Research Group has curated a set of five external papers for consensus review, highlighting key literature relevant to emergency medicine practice. Of these, the TRACE-5 trial stands out as a 'game changer,' focusing on tenecteplase versus standard care for basilar artery occlusion within 24 hours. Basilar artery occlusion represents a severe posterior circulation stroke with high associated morbidity and mortality. The findings from this multicenter, prospective, randomized, open-label, blinded-endpoint trial suggest significant potential shifts in how we manage reperfusion therapy for these challenging strokes.

This new joint guideline from the Royal College of Emergency Medicine and the National Poisons Information Service provides a much-needed generalized framework for managing patients in the ED when poisoning is suspected but not yet confirmed. The core concept revolves around adopting a toxidromic approach, meaning management must be highly adaptable because the patient's clinical picture will likely change as more information becomes available regarding potential toxins. It stresses that initial assessment and identifying possible agents are paramount, with careful consideration of how different poisons behave over time—their toxicokinetics. Crucially, the authors emphasize repeatedly that this guidance is a general scaffold and absolutely does not supersede specific protocols found in TOXBASE or from local poison centers.

This paper addresses the optimal diagnostic pathway for testicular torsion (TT) in pediatric patients presenting with an acute scrotum within a tertiary emergency setting. The authors emphasize that while Doppler ultrasound exhibits excellent diagnostic accuracy when performed, relying solely on imaging is insufficient given the time-sensitive nature of this condition. They strongly advocate for adopting an integrated, probability-based approach to diagnosis. This means systematically using established clinical predictors, such as incorporating scores like TWIST, to guide whether and when ultrasound should be utilized. Crucially, the study concludes that these clinical assessments must direct decision-making without causing any delay in proceeding toward surgical exploration if suspicion remains high.

The SODa-BIC trial addressed a persistent question in critical care: whether administering sodium bicarbonate to critically ill patients with metabolic acidosis and concurrent vasopressor support actually improves kidney outcomes. This multi-center randomized controlled trial specifically enrolled adults meeting criteria for metabolic acidosis (pH < 7.30) while requiring pressors, which is the population where intervention decisions are most challenging. The primary endpoint was a reduction in major adverse kidney events over 30 days. While previous literature presented conflicting data regarding bicarbonate's role in this setting, these investigators provided a large-scale assessment of its utility in guiding therapy for acute kidney injury in the ICU.

This update synthesizes several key findings from the Critical Care Reviews 2026 meeting, paying particular attention to the ARISE Fluids trial and its implications for fluid management in septic shock. The discussion covers how this randomized controlled trial compared vasopressors directly against fluids in patients who had already received substantial initial fluid resuscitation, which is a critical nuance for current guidelines. Beyond sepsis, the review also addresses recent data regarding sodium bicarbonate use in both cardiac arrest and metabolic acidosis settings, while also correcting common misunderstandings about DKA resolution acid-base status. Overall, it provides a high-yield summary of evolving evidence across multiple areas of critical care practice.

This systematic review and meta-analysis synthesized evidence regarding interventions designed to curb unnecessary radiographic imaging in pediatric patients presenting with upper or lower extremity injuries in the emergency department. The authors found that implementing specific clinical decision rules showed promise for reducing radiation exposure, transition delays, and costs associated with over-imaging. Specifically, a decision rule tailored for ankle injuries demonstrated a statistically significant reduction in radiography (OR=0.11). Similarly, a guideline for wrist injuries was associated with reduced imaging rates (OR=0.06), although this analysis noted that some injuries were missed by the protocol. Overall, the review suggests that integrating evidence-based guidelines into practice is a viable strategy to optimize imaging utilization in this population.

This paper introduces the Pre-MIRACLE 2 score, a novel tool intended to stratify neurological risk for patients who have achieved return of spontaneous circulation following out-of-hospital cardiac arrest (OHCA), particularly useful when blood pH measurements are unavailable. The authors report that this scoring system demonstrated excellent performance in validation cohorts, achieving an area under the receiver operating characteristic curve (AUROC) of 0.85. Given its design, it is positioned as a pragmatic adjunct for decision-making regarding neurological prognosis in resource-limited pre-hospital settings. Overall, the findings suggest the score holds potential utility for guiding care pathways immediately following resuscitation outside the hospital.

This piece underscores the ED's crucial role as a primary point of contact for identifying adolescent substance use, which is particularly concerning given the rise in drug-related mortality from substances like fentanyl. While established universal screening tools such as CRAFFT and BSTAD exist, their consistent application within the fast-paced ED setting remains challenging due to workflow barriers. The authors argue that simply detecting use isn't enough; true improvement requires integrating detection with brief motivational interviewing techniques and establishing robust referral pathways. Therefore, the key message is shifting from just screening to actively linking identification with immediate, structured intervention.

This review synthesized data comparing haematoma block versus standard procedural sedation for manipulating distal radius fractures in adults presenting to the ED. The authors found that there is no consistent evidence suggesting a difference in the overall procedural success rate between these two techniques, even when looking at the highest-quality randomized controlled trials. Furthermore, regarding adverse events, the literature did not establish a clear difference in safety profiles across all studies reviewed. Interestingly, one reported finding suggested that haematoma block might be associated with less postoperative pain compared to sedation. Overall, the evidence suggests both methods are viable alternatives for fracture reduction.

This nationwide propensity score-matched analysis examined whether administering epinephrine in the prehospital setting improves outcomes following traumatic cardiac arrest. The authors found a positive association between receiving prehospital epinephrine and both increased survival to hospital discharge, as well as higher rates of return of spontaneous circulation before reaching the facility. While these findings suggest a benefit from early administration, the study itself cautions that the link between this intervention and favorable neurological outcomes is not yet clear. Overall, it provides supportive data for the use of prehospital epinephrine but strongly emphasizes the need for more research to pinpoint the ideal timing and specific patient populations who will benefit most.

This meta-analysis compared cholecystectomy (CC) versus percutaneous cholecystostomy (PC) for managing acute cholecystitis, suggesting that CC might be associated with better outcomes regarding lower mortality and readmission rates than PC. It's important to note, however, that the pooled evidence supporting this conclusion is largely derived from observational cohorts. Because of this reliance on observational data, the findings are quite susceptible to confounding by indication, meaning that the initial management choice itself likely influences the observed differences in outcomes. While a randomized trial like CHOCOLATE was included, the overall body of evidence remains limited by these inherent biases when comparing the two approaches.

This secondary analysis of the THAPCA-OH trial focused on using serum lactate levels to predict outcomes following pediatric out-of-hospital cardiac arrest. The key finding reported is that elevated lactate concentrations measured within six hours of return of spontaneous circulation (ROSC) correlated with poorer one-year survival and overall unfavorable outcomes in this pediatric population. This suggests that lactate may serve as a valuable adjunct biomarker for early risk stratification, potentially aiding in predicting both neurological prognosis and mortality following resuscitation efforts outside the hospital setting.

This review synthesizes findings from a retrospective study comparing the use of rocuronium versus succinylcholine during Rapid Sequence Intubation (RSI) in the emergency department setting, focusing on post-intubation sedation and analgesia timing and awareness risk. The authors noted that while rocuronium was associated with delayed initiation of post-intubation sedation and analgesia when compared to succinylcholine, the absolute median differences observed were quite small, leading to uncertainty regarding true clinical significance. A key concern highlighted is the potential for patient awareness during paralysis when utilizing longer-acting agents like rocuronium. Given these nuances, the article strongly recommends proactive planning for administering post-intubation sedation and analgesia prior to performing RSI.

This before-and-after study assessed the impact of implementing a formal oxygen titration guideline in mechanically ventilated emergency department patients regarding their oxygenation status. The authors found that adopting this guideline successfully reduced instances of severe hyperoxemia among the cohort. However, this improvement came at a cost, as the implementation was concurrently associated with an increase in overall hypoxemia. Notably, the incidence of severe hypoxemia did not change following the intervention. Overall, the data suggest a trade-off when implementing such protocols, indicating that while high oxygen levels can be curtailed, there is a risk of shifting the balance toward inadequate oxygenation.

This paper tackles a common ED challenge by developing and validating machine learning models designed to improve risk stratification for serious etiologies like stroke or TIA in patients presenting with dizziness or vertigo. The authors built these ML tools specifically because current risk assessment methods lack robust predictive power, leading to potential over-utilization of imaging resources. They report that several selected models achieved discrimination comparable to established scoring systems, such as the Sudbury Vertigo Risk Score. Furthermore, the modeling suggests a potential benefit in improving specificity and decreasing overall projected resource use, particularly for CT scans. While these results are encouraging regarding their utility in guiding workup decisions, the authors rightly emphasize that external validation is a necessary next step before clinical adoption.

This retrospective cohort study examined the practice of maintaining anesthesia prehospital in blunt trauma patients who presented with both a Glasgow Coma Scale (GCS) score of 9 or higher and evidence of hemodynamic reserve. The authors specifically focused on the technique of using only intermittent boluses for anesthetic maintenance. Their key conclusion highlights that this bolus-only approach leads to considerable variability in the total cumulative doses administered across patients. This inherent variability raises a concern regarding the potential for achieving sub-therapeutic plasma levels of the anesthetic agents, even in seemingly stable trauma patients.

This multi-center retrospective cohort study, the SUGARED study, assessed the impact of using sugammadex to reverse rocuronium neuromuscular blockade specifically in patients presenting to the emergency department with traumatic brain injury or symptomatic intracranial hemorrhage. The authors found a notable association between administering sugammadex and subsequent changes in both the Glasgow Coma Scale (GCS) scores and the need for analgesia. This suggests that simply reversing the block might precipitate underlying neurological instability or altered pain management requirements, which is clinically relevant given the acuity of these patient populations.

This EM Cases episode provides a comprehensive, practical walkthrough of facial trauma management, correctly emphasizing that the most dangerous aspects are often overlooked complications rather than the obvious fractures. The discussion systematically covers airway assessment, ocular integrity, and subtle soft tissue pathology alongside fracture evaluation. It guides the reader through determining which specific fractures carry an immediate risk for delayed airway compromise and when a physical exam trumps advanced imaging like CT scans. Crucially, it provides actionable algorithms for deciding between urgent consultation/transfer versus safe disposition in the ED setting.

This visual pearl focuses on envenomation from *Acanthophis* species, commonly known as death adders, highlighting a predictable pattern of systemic neurotoxicity. The venom profile is characterized by toxins acting both as post-synaptic antagonists and those that cause impaired neurotransmitter release through irreversible presynaptic binding. Clinically, the presentation is dominated by rapidly progressive descending flaccid paralysis, which can manifest initially with symptoms like diplopia and ptosis before progressing to respiratory failure. Given this predictable neurotoxic syndrome, prompt recognition and administration of specific antivenom are critical components of management.

This randomized controlled trial addressed the lack of consensus regarding the optimal anatomical site for tactile stimulation (TS) during the initial phases of neonatal resuscitation in the delivery room. The study compared three distinct approaches—rubbing the back, rubbing the trunk, or rubbing the soles of the feet—and assessed their impact on peripheral oxygen saturation at the five-minute mark, alongside other relevant outcomes. Overall, the findings indicated no statistically significant difference in 5-minute SpO2 levels or any other measured outcome when comparing these three stimulation sites. This suggests that from a measurable physiological standpoint, the specific location chosen for routine tactile stimulation may not be critical.