New Study Reveals Over 18,000 U.S. Children Develop Sepsis Annually

A new national study has provided the first standardised estimates of pediatric sepsis in the U.S. Published in JAMA on March 22, the research reveals that over 18,000 hospitalised children develop sepsis each year, with more than 1,800 dying before discharge. The findings also show that nearly one in five pediatric hospital deaths is tied to this severe infection-related condition.

The study introduces a refined surveillance definition, the Pediatric Sepsis Event (PSE), designed to improve case identification and monitoring across healthcare systems.

The research was a collaborative effort, drawing clinical expertise from leading institutions. Among them were the SEPSIS Centers at the Harvard Pilgrim Health Care Institute, Children's Hospital of Philadelphia, and Nemours Children's Hospital in Delaware. Key contributors included Chanu Rhee, an associate professor at Harvard Medical School, and Scott Weiss, division chief of critical care medicine at Nemours. The Centers for Disease Control and Prevention (CDC) also played a role by adapting its Adult Sepsis Event framework for pediatric use.

Sepsis remains a major cause of death in children worldwide, characterised by a severe systemic response to infection that damages multiple organs. The study found that sepsis complicates about 1.3% of all pediatric hospital stays—equivalent to one in every seventy-five admissions. Despite medical advancements, incidence and mortality rates have stayed stable between 2016 and 2022.

A notable portion of pediatric sepsis cases begins during hospitalisation, with these patients facing higher mortality risks. The new PSE definition aims to address inconsistencies in case identification, allowing healthcare systems to uniformly track sepsis. This standardisation supports benchmarking and quality improvement efforts, which researchers argue are essential for better intervention and prevention strategies.

The study highlights the ongoing burden of pediatric sepsis, with thousands of children affected annually in the U.S. alone. By establishing a consistent surveillance method, hospitals can now monitor cases more effectively and work toward reducing sepsis-related deaths. The findings underscore the need for continued research and targeted clinical improvements to combat this persistent threat.