The perinatal infective environment and infants of very low birth weight

Area of Science:

• Neonatal Medicine
• Infectious Diseases
• Perinatal Health

Background:

• Low birth weight infants (<1500g) are susceptible to infections.
• Identifying reliable indicators of infection in neonates is crucial for timely intervention.
• The relationship between various clinical and pathological findings and neonatal infection requires further elucidation.

Purpose of the Study:

• To investigate the prevalence of an infective environment in infants weighing less than 1500g at birth.
• To determine the correlation between bacterial cultures, gastric aspirate findings, placental histology, and infant outcomes.
• To assess the association of membrane rupture, duration of membranes ruptured, and serum IgM levels with infection indicators.

Main Methods:

• Bacterial cultures were obtained from multiple sites in neonates.
• Gastric aspirate analysis for pus cells was performed.
• Placental histology was examined.
• Correlation analyses were conducted between culture results, clinical findings, and mortality.

Main Results:

• An infective environment was frequently observed in infants weighing less than 1500g.
• Positive ear swab cultures correlated significantly with mortality.
• Placental infection also correlated with increased mortality.
• Pus cells in gastric aspirate were associated with histological evidence of placental infection.
• No correlation was found between bacterial cultures and gastric aspirate pus cells or placental histology.
• Membrane rupture and serum IgM levels showed no significant association with other findings.

Conclusions:

• Positive ear cultures and placental infections are significant indicators of mortality risk in very low birth weight infants.
• Gastric aspirate pus cells may serve as a marker for placental infection.
• Routine bacterial cultures from multiple sites may not be consistently correlated with other infection markers in this population.