Kernicterus: an international perspective

Area of Science:

• Neonatology
• Pediatric Neurology
• Public Health

Background:

• Kernicterus is a global concern, with increased risk in regions with high prevalence of glucose-6-phosphate dehydrogenase deficiency.
• A rise in kernicterus case reports in the 1990s suggests potential contributing factors like reduced vigilance for newborn jaundice and inadequate post-discharge follow-up.
• Current limitations exist in identifying infants particularly vulnerable to bilirubin's neurotoxic effects.

Purpose of the Study:

• To highlight the potential increase in kernicterus incidence.
• To emphasize the need for vigilant evaluation of jaundiced newborns.
• To advocate for improved strategies in managing neonatal jaundice and preventing bilirubin encephalopathy.

Main Methods:

• Review of case reports and clinical observations regarding kernicterus.
• Discussion of factors contributing to the apparent rise in incidence.
• Emphasis on clinical vigilance and the role of diagnostic tools.

Main Results:

• An apparent increase in kernicterus cases reported in the 1990s.
• Identification of potential contributing factors including decreased awareness and early discharge.
• Highlighting the lack of precise tools to predict bilirubin neurotoxicity in vulnerable infants.

Conclusions:

• Physicians must remain vigilant in evaluating jaundiced newborns, despite most cases not requiring aggressive treatment.
• Transcutaneous bilirubin measurement offers a non-invasive method to reduce invasive testing.
• Prompt recognition and emergency phototherapy are critical for jaundiced infants exhibiting signs of neurotoxicity, alongside further evaluation.