Defibrillating the Data

The St. Vincent's Emergency Research Group has curated a set of five external papers for consensus review, flagging key literature that may impact emergency medicine practice. Of particular note is the TRACE-5 trial, which directly compares tenecteplase against standard care specifically for basilar artery occlusion within 24 hours. The group rates this evidence as a 'game changer,' suggesting its potential to significantly alter current protocols for managing acute posterior circulation strokes. This highlights the ongoing evolution of reperfusion strategies beyond the initial anterior circulation focus. While the review covers several topics, the weight of the update seems heavily placed on refining stroke management guidelines based on this new data.

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. Recognizing the inherent difficulty in these cases, the authors strongly advocate for adopting a toxidromic approach throughout initial assessment. This means maintaining a high index of suspicion and constantly considering how the patient's clinical status might change as different toxicological processes unfold. A key element emphasized is integrating knowledge of potential toxins' toxicokinetics into the ongoing management plan. It is crucial to remember, however, that this document serves as general guidance and explicitly does not supersede specific protocols found in TOXBASE or local poison centers.

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 enrolled patients meeting criteria for significant acidosis (pH < 7.30) while requiring pressors. The primary endpoint was the reduction of major adverse kidney events within a 30-day window. While previous literature presented conflicting data regarding bicarbonate's role in acute kidney injury, this study provided robust evidence from a well-defined cohort.

This summary covers several key updates from the Critical Care Reviews 2026 meeting, with a significant focus on the ARISE Fluids trial regarding fluid resuscitation in septic shock. The authors detail this randomized controlled trial, which specifically compared vasopressors versus further fluids in patients who had already received substantial initial fluid boluses, moving beyond the standard 30 mL/kg mandate. Beyond sepsis management, the discussion also touches upon the current evidence surrounding sodium bicarbonate use in both cardiac arrest and metabolic shock states. Furthermore, it addresses a common acid-base misconception concerning the expected resolution of diabetic ketoacidosis.

This systematic review and meta-analysis synthesized evidence on various 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, delays, and costs associated with routine imaging. Specifically, a decision rule tailored for ankle injuries demonstrated a statistically significant reduction in radiography (OR=0.11). Similarly, a guideline-based approach for wrist injuries was associated with reduced imaging, although one study noted that eight specific injury types were missed by the protocol. Overall, the findings support incorporating evidence-based guidelines into practice to guide imaging decisions for these common pediatric presentations.

This review discusses the ARISE-FLUIDS trial, which directly compared two resuscitation strategies in septic shock patients presenting to the emergency department: one group received early vasopressors with restricted fluid administration, while the other received higher fluid volumes and later initiated vasopressors. The key finding reported is that neither of these distinct approaches demonstrated a superior rate of survival at day 90 when compared head-to-head. This suggests that current resuscitation guidelines regarding the timing and combination of initial vasopressor use versus aggressive fluid loading may need reevaluation in the acute setting.

This review synthesized data comparing haematoma block versus standard procedural sedation for manipulating adult distal radius fractures in the emergency department setting. The authors assessed whether these two techniques yield comparable success rates and if there are differences in associated adverse events. Overall, the evidence suggests that haematoma blocks achieve a procedural success rate similar to those achieved with sedation, and there is no robust data indicating a difference in overall adverse event risk between the two approaches. While one study noted less reported pain following a haematoma block compared to sedation, this finding was not consistently replicated across all analyzed literature. This synthesis suggests that for routine manipulation of these fractures, either approach appears viable from a procedural standpoint.

This secondary analysis of the THAPCA-OH trial focused on determining if serum lactate levels could serve as a reliable biomarker to predict long-term outcomes following pediatric out-of-hospital cardiac arrest. The key finding reported is that elevated lactate concentrations measured within the first six hours after return of spontaneous circulation (ROSC) correlated with poorer one-year survival and overall unfavorable outcomes in this pediatric population. This suggests that lactate may have utility as an adjunct tool for early risk stratification, potentially aiding neuroprognostication beyond standard measures. While promising, it is important to remember this is a secondary analysis drawing conclusions from existing trial data.

This review analyzes 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 appeared associated with delayed initiation of post-intubation sedation compared to succinylcholine, they cautioned that the absolute median differences observed were quite small, leading to uncertainty regarding true clinical significance. The core takeaway revolves around the heightened concern for intraoperative awareness when utilizing longer-acting neuromuscular blockers like rocuronium during the RSI process. Consequently, the authors recommend proactively planning and administering appropriate sedation and analgesia measures prior to performing the RSI sequence.

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 reported that adopting this guideline successfully reduced the incidence of severe hyperoxemia among the cohort. However, this benefit came at a cost, as the implementation was concurrently associated with an increase in overall hypoxemia. Notably, the rate of severe hypoxemia appeared unchanged following the intervention. Overall, the findings suggest that while structured guidelines can effectively manage excessive oxygen delivery, they may inadvertently shift the balance toward inadequate oxygenation.

This retrospective cohort study examined the practice of maintaining anesthesia prehospital in blunt trauma patients who had both adequate hemodynamic reserve and a Glasgow Coma Scale score of 9 or higher, specifically focusing on those managed with an intermittent bolus-only regimen. The authors concluded that relying solely on intermittent boluses for anesthetic maintenance introduces significant variability in the total cumulative drug doses administered to these patients. This inherent unpredictability raises concerns regarding the potential for achieving sub-therapeutic plasma concentrations at some point during care. Overall, the findings suggest caution when using this dosing strategy in the prehospital setting.

This multi-center retrospective cohort study examined the use of sugammadex for reversing rocuronium blockade specifically within the emergency department setting, focusing on patients with traumatic brain injury or symptomatic intracranial hemorrhage. The primary finding reported is that administering sugammadex to reverse rocuronium was associated with significant subsequent changes in both Glasgow Coma Scale scores and the need for analgesia/sedation. This suggests that simply reversing the neuromuscular blockade might precipitate an acute change in the patient's neurological status or their requirement for ongoing pain control, which warrants attention in the ED setting.

This case report highlights a classic presentation of Phlegmasia cerulea dolens (PCD) in a young woman with underlying connective tissue disorder, Ehlers-Danlos syndrome. The patient presented with acute onset of severe leg pain accompanied by signs of systemic compromise, specifically hypotension and tachycardia, alongside the hallmark physical findings of coldness, swelling, and profound blue discoloration of the limb. PCD is characterized as a rare but highly dangerous form of deep vein thrombosis involving occlusion across multiple venous systems—deep, superficial, and collateral veins. Recognizing this constellation of symptoms, especially in high-risk patients, is crucial because it signifies significant venous outflow obstruction requiring urgent management.

This randomized controlled trial directly addresses a common point of uncertainty in the immediate postnatal period: where exactly should you perform tactile stimulation (TS) on a non-crying neonate? The study compared three distinct sites for this initial intervention—rubbing the back, rubbing the trunk, or rubbing the soles of the feet—and measured outcomes like peripheral oxygen saturation at the five-minute mark. Overall, the findings were quite definitive in their lack of differentiation; there was no statistically significant difference observed in 5-minute SpO2 levels or other endpoints across any of the three stimulation sites tested. This suggests that while tactile stimulation itself is part of the standard initial sequence, the specific anatomical location chosen for the rubbing may not be critical for immediate stabilization.

This systematic review and meta-analysis synthesized data from randomized controlled trials comparing initial vasopressor choices—specifically epinephrine, norepinephrine, and dopamine—in neonates presenting with septic shock refractory to fluid resuscitation. The authors concluded that, overall, there was no statistically significant difference observed among the tested vasoactive agents concerning early shock reversal or subsequent mortality in this critically ill population. It is important to note, however, that the conclusion itself is tempered by acknowledging the limited number of included trials and considerable clinical heterogeneity across the studies reviewed. Therefore, while a comparison was made, the findings do not establish definitive treatment equivalency among these first-line agents.

This piece introduces the concept of the 'lightbulb sign,' which refers to observable socioeconomic indicators within a patient's environment, such as non-functional household lights due to inability to afford replacements. The authors argue that these environmental clues are not merely incidental observations but provide vital information about underlying structural determinants of health. They emphasize that socioeconomic deprivation is strongly correlated with poorer health outcomes across multiple domains, including obesity, smoking status, mental health issues, and overall multimorbidity burden. For the emergency physician, this means recognizing that the patient's living situation offers a critical lens through which to re-evaluate risk assessment beyond the immediate chief complaint. The core message is that structural inequality manifests clinically as sicker patients presenting later in the care continuum.

This retrospective cohort study analyzed 30-day mortality in a large U.S. population presenting with acute pulmonary embolism (PE) managed with direct oral anticoagulants (DOACs), stratifying outcomes by the Wells' criteria equivalent, sPESI score. The key finding is that for patients classified as low risk, specifically those with an sPESI of 0 or 1, receiving hospitalization did not confer a survival benefit compared to being managed in the outpatient setting. Notably, despite this lack of added benefit from admission, two-thirds of these low-risk patients were still hospitalized. The authors conclude that these data support broadening the scope of outpatient management for acute PE and potentially reducing unnecessary short-stay hospitalizations when no other compelling reason mandates inpatient care.

This review tackles the persistent issue of interruptions during resuscitation by exploring the utility of continuous Doppler ultrasound monitoring to detect Return of Spontaneous Circulation (ROSC) without pausing chest compressions for pulse checks. The core concept is leveraging femoral arterial Doppler waveforms obtained *during* active CPR to predict true cardiac activity, comparing this method's diagnostic accuracy against traditional methods that necessitate stopping compressions. If validated, this represents a significant workflow improvement by maintaining uninterrupted high-quality CPR delivery. While the potential to eliminate time-consuming pulse checks is highly appealing for resuscitation teams, the study focuses on how well Doppler signals can reliably signal pulsatility and anterograde flow indicative of ROSC.

This study examined the frequency and predictors of status epilepticus (SE) in epilepsy patients presenting to the emergency department setting in Malaysia. They found that SE was quite common, affecting nearly one-quarter of this patient cohort, and critically, it was strongly associated with elevated rates of in-hospital mortality. The authors suggest these findings are valuable for improving early risk stratification within the ED environment. Specifically, they point toward certain subgroups warranting heightened vigilance and monitoring. These high-risk groups include older patients, those presenting with underlying metabolic derangements, or any patient where a central nervous system infection cannot be ruled out.

This article emphasizes a critical shift in thinking regarding bystander cardiopulmonary resuscitation (bCPR) following out-of-hospital cardiac arrest, arguing that the *quality* of compressions is more predictive of survival than merely the performance of CPR itself. The findings strongly suggest that simply having bystanders perform chest compressions is insufficient; the mechanical efficacy of those compressions matters significantly for patient outcomes. Consequently, the authors are calling on EMS systems and policymakers to reorient their efforts toward implementing actionable strategies designed to enhance the technical skill and consistency of bCPR delivery in the field. This moves the focus from mere procedural compliance to optimizing the physical quality of chest recoil and depth/rate.