Two decades of work on paediatric sepsis have produced real gains, and this review is unusually clear about which ones. The Phoenix Sepsis Criteria have shifted the definition away from inflammatory markers towards life-threatening organ dysfunction, which is both more specific and closer to what actually kills children. Conjugate vaccine programmes have changed the population presenting with invasive bacterial infection. And guidance now stratifies treatment by severity instead of applying one bundle to every child.
The gaps are where the review earns attention. Many paediatric sepsis deaths still occur within the first 24 hours of referral to intensive care — which means the outcome is largely determined in the emergency department, the ward or the referring hospital, not in the PICU. Early recognition remains the unsolved problem: screening tools perform imperfectly in unselected febrile children, biomarkers are adjuncts rather than answers, and clinicians still rely on clinical gestalt and on parental concern.
The authors' view of what comes next is worth noting precisely because it is cautious. They expect progress through risk stratification rather than universal screening, with machine learning potentially making recognition more reproducible and phenotype-informed approaches enabling better-targeted trials — and they say both need prospective validation before routine use.
- Treat the pre-PICU window as where outcome is decided; escalate early rather than observing
- Use organ dysfunction, not inflammatory markers, to define severity
- Do not rely on a screening score in an unselected febrile child — they perform imperfectly
- Record parental concern explicitly; it is named here as one of the signals clinicians still depend on
- Treat machine learning sepsis alerts as unvalidated until prospectively tested in your population
Why it matters
It locates the problem outside the intensive care unit, where most sepsis quality improvement effort has been spent.
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