Infections in a Children's Hospital autopsy population

Area of Science:

• Pediatric Pathology
• Infectious Diseases
• Epidemiology

Background:

• Infections and inflammation significantly contribute to mortality in children.
• Understanding the role of infections in pediatric deaths is crucial for public health.
• Autopsy data provides valuable insights into causes of death and disease trends.

Purpose of the Study:

• To determine the contribution of infections and inflammation to death in children.
• To analyze trends in pediatric infections over a 24-year period (1986-2009).
• To categorize the role of infections in the chain of events leading to death.

Main Methods:

• Retrospective review of pediatric autopsies (3-8 year age groups) conducted between 1986 and 2009.
• Categorization of infections based on their role in the cause of death (underlying, mechanism, contributing, agonal, incidental).
• Analysis of specific infection types, including bronchopneumonia, sepsis, and meningitis, and their trends over time.

Main Results:

• Of 608 autopsies, 401 (66%) revealed 691 infections.
• Infections were most frequently the mechanism of death (34.3%) or a contributing factor (33.4%), rather than the underlying cause (12.3%).
• Significant declines in sepsis and meningitis were observed, potentially linked to fluid resuscitation standardization and vaccination (e.g., Streptococcus pneumoniae).

Conclusions:

• Despite advances in antimicrobial therapy, inflammatory lesions remain prevalent in pediatric deaths.
• Infections commonly act as a mechanism or contributing factor, highlighting the complexity of pediatric mortality.
• The study underscores the impact of medical interventions and vaccinations on reducing infection-related deaths in children.