Neonatal Sepsis: A Review of Pathophysiology and Current Management Strategies

Area of Science:

• Neonatal care
• Infectious diseases
• Pediatric immunology

Background:

• Neonatal sepsis presents significant risks, contributing to infant morbidity and mortality.
• Early-onset and late-onset sepsis have distinct characteristics and challenges.
• Despite advances, sepsis remains a critical concern in neonatal intensive care units.

Purpose of the Study:

• Review neonatal sepsis, identifying risk factors and common pathogens.
• Examine neonatal immune system vulnerabilities to infection.
• Discuss current management strategies and implications for healthcare providers.

Main Methods:

• An integrative literature review was performed.
• Searches utilized CINAHL, Google Scholar, and PubMed databases.
• Key terms focused on neonatal sepsis, risk factors, and management.

Main Results:

• Group B Streptococcus and E. coli are primary early-onset pathogens; Coagulase-negative staphylococci dominate late-onset cases.
• Neonatal immune deficiencies include reduced cellular activity, immature complement systems, and poor pathogen memory.
• Blood cultures are standard diagnostics; sepsis calculators aid early-onset management.

Conclusions:

• Understanding neonatal susceptibility to infection is vital for effective, evidence-based care.
• Improved diagnostic tools are needed for timely and sensitive sepsis detection.
• Further research is required for preterm infants and late-onset sepsis management, enhancing antibiotic stewardship.