🩺 THIS WEEK IN EM
SEP-1 Bundle Compliance: The Mandate Without the Evidence
The SEP-1 measure has been part of the CMS Hospital Value-Based Purchasing Program since 2015. In that time it has driven enormous institutional pressure: sepsis huddles, documentation checklists, nursing alerts, and quality meetings. The implicit premise has been that mandate-level compliance with the hour-1 bundle — cultures, lactate, fluids, antibiotics, vasopressors — translates into saved lives. A systematic review published in Annals of Internal Medicine now asks whether that premise was ever well supported.
Ford and colleagues searched the literature for studies evaluating the association between SEP-1 bundle compliance or implementation and mortality in patients with sepsis. They identified 35 studies, categorized them by design and methodology, and applied standard criteria for evaluating the quality of evidence. The finding that matters: there was no moderate- or high-quality evidence that SEP-1 compliance was associated with reduced sepsis mortality. The studies that found associations were predominantly observational and subject to substantial confounding — the kind of methodological substrate that has generated spurious findings in countless other clinical domains. Higher-quality evidence, when it existed, did not replicate the mortality signal.
This is a relevant and uncomfortable result for EM physicians. The bundle elements themselves — antibiotics, cultures, lactate, fluid resuscitation — each have individual evidence bases of varying strength. The controversy is not whether those interventions matter; it is whether packaging them into a time-stamped compliance metric and tying hospital reimbursement to it actually improves outcomes. The systematic review suggests the answer is: we don't know, and the evidence we have doesn't support the conclusion that it does.
At the bedside, this doesn't change how to treat sepsis. You should still get cultures, push antibiotics early, and reassess fluid responsiveness. What it changes is the framing when administration pressure collides with clinical judgment — a bundle score that's ticking down is not the same as evidence-based care, and this paper gives you the literature to say so.
Bottom line: A systematic review of 35 studies found no moderate- or high-quality evidence that SEP-1 bundle compliance or implementation reduces sepsis mortality. The mandate persists; the data supporting it does not. Excellent sepsis care means treating the patient — antibiotics early, thoughtful resuscitation, rapid source identification — not optimizing a checkbox score.
Ford JS, Morrison JC, Kyaw M, et al. The Effect of Severe Sepsis and Septic Shock Management Bundle (SEP-1) Compliance and Implementation on Mortality Among Patients With Sepsis: A Systematic Review. Ann Intern Med. 2025;178(4):543–557.
Boot vs. Cast for Toddler's Fractures: A Simpler Path to the Same Outcome
A toddler's fracture — the classic spiral or oblique nondisplaced fracture of the distal tibia in children aged roughly one to four years — is one of the most common pediatric fractures seen in the ED. Standard management has historically meant circumferential casting and a return visit to orthopedics a few weeks later. It is a practice that works, but it is also burdensome: casts make bathing difficult, caregivers need to carry a child who cannot get wet, and the follow-up visit is often unremarkable. This trial asked whether a removable walking boot could do the same job with less.
Boutin and colleagues enrolled 129 children (mean age 2.2 years) across four Canadian tertiary pediatric emergency departments in a pragmatic, multicenter, assessor-blinded noninferiority RCT. Children with radiographically confirmed toddler's fractures — visible fracture line, less than 2mm displacement, distal two-thirds of the tibia — were randomized to either a prefabricated below-knee walking boot or a circumferential cast. The boot was worn for one week, then used as needed based on symptoms; the cast group followed standard immobilization and had scheduled orthopedic follow-up. The primary outcome was pain at four weeks, measured on a validated scale.
Boot was noninferior to cast. Pain scores at four weeks were similar between groups, meeting the prespecified noninferiority margin. More children in the boot group returned to baseline activity compared with the cast group. Caregivers reported the boot was easier to manage for bathing and carrying. Importantly, the boot protocol did not include routine physician follow-up — and outcomes remained equivalent without it.
For ED practice, this is a meaningful workflow change. Toddler's fractures are stable injuries with excellent healing potential. The evidence now supports discharging these kids in a boot, with return precautions and parent guidance on skin monitoring, without reflexively booking an orthopedic follow-up that most of them will not need. Confirm the fracture is nondisplaced, confirm the child can bear weight or at minimum has intact neurovascular status, and fit the boot.
Bottom line: In this multicenter RCT of 129 children with radiographically confirmed toddler's fractures, a removable walking boot was noninferior to circumferential casting for pain at 4 weeks, with faster return to baseline activity and less caregiver burden. No routine physician follow-up was required in the boot group. A boot with return precautions is now a well-supported alternative to casting for uncomplicated toddler's fractures.
Boutin A, Colaco K, Stimec J, et al. Removable Boot vs Casting of Toddler's Fractures: A Randomized Clinical Trial. JAMA Pediatr. 2025;179(7):713–721.
Pediatric Appendicitis Scores: Which One to Reach For
Pediatric appendicitis is one of the highest-stakes diagnoses in emergency medicine — miss it and you get a perforated bowel; overcall it and you get an unnecessary appendectomy. Clinical scoring systems exist precisely to structure this decision, but there are now enough of them that choosing between them has become its own source of confusion. A structured literature review published in 2026 synthesizes the evidence on the three scores most commonly used in North American EDs: the Alvarado score, the Pediatric Appendicitis Score (PAS), and the Pediatric Appendicitis Risk Calculator (pARC).
The takeaway from the evidence is hierarchy, not equivalence. The Alvarado score — developed in 1986, derived primarily from adult and mixed cohorts — has good sensitivity but limited specificity in children (57–76% at the standard cutoff of ≥7). It remains widely available and familiar, but it was not built for kids and its performance in pediatric populations reflects that. The PAS offers higher sensitivity than Alvarado, making it more useful when the goal is identifying children who are safe to discharge — a low PAS provides better rule-out reassurance than a low Alvarado. The pARC (Pediatric Appendicitis Risk Calculator) takes a different methodological approach entirely: it is a continuous risk model built prospectively in pediatric emergency department populations, accounting for the continuous variables and clinical interactions specific to children. The evidence consistently shows it outperforms fixed additive scoring systems in pediatric cohorts.
The review's practical conclusion is direct: don't use Alvarado as a standalone tool in children. The better workflow is to start with pARC or PAS for initial risk stratification, layer in inflammatory biomarkers (CRP, neutrophil-to-lymphocyte ratio) for intermediate-risk patients, and reserve CT for cases that remain equivocal after ultrasound. That stepwise approach — score, then labs, then selective imaging — reduces CT exposure and improves diagnostic precision compared with jumping straight to imaging out of uncertainty.
In a busy ED, where the eight-year-old with RLQ pain and vomiting gets a quick look and a gestalt check, the practical prompt is: if you're going to use a score, reach for pARC or PAS over Alvarado. If your institution has pARC integrated into the EMR, use it. The score doesn't replace the surgeon's eyes, but it calibrates whether and how urgently those eyes need to get involved.
Bottom line: Evidence from a structured literature review confirms a clear hierarchy among pediatric appendicitis scores: pARC outperforms both PAS and Alvarado in pediatric cohorts, and PAS offers higher sensitivity than Alvarado for ruling out appendicitis in children. Alvarado should not be used as a standalone tool in pediatric patients. Optimal diagnostic pathways combine pARC or PAS with selective biomarkers and ultrasound-first imaging, reserving CT for cases that remain equivocal.
Stojanović D, Vujičić D, Stojanović M, et al. Comparison of the Alvarado Score with Alternative Diagnostic Tools in Pediatric Acute Appendicitis: A Literature Review. Pediatr Rep. 2026;18(4):115
🔭 Next Week
Albumin replacement in septic shock: A JAMA Network Open study from early 2026 revisits one of the most reliably debated interventions in critical care
TXA for spontaneous ICH (STOP-MSU): The Lancet Neurology trial asks whether tranexamic acid has a role in intracerebral hemorrhage — and the answer is more nuanced than the trial's headline
Peripheral vasopressors without a central line (VIPCA RCT): A 2025 RCT that could change how you manage early septic shock before the central line is in
The Hallway Consult is built for EM clinicians who want the useful version of the literature. Forward it to a colleague if it helped.
— The Hallway Consult team