Vitamin E and neonatal bilirubinemia

Area of Science:

• Neonatal Medicine
• Pediatric Nutrition
• Biochemistry

Background:

• Neonatal hyperbilirubinemia is a common condition in preterm infants.
• Elevated bilirubin levels can lead to serious neurological complications.
• Oxidative stress is implicated in the development of bilirubinemia.

Purpose of the Study:

• To investigate the efficacy of vitamin E in mitigating bilirubinemia in preterm infants.
• To assess the impact of vitamin E on antioxidant status and phototherapy duration.

Main Methods:

• A randomized controlled trial involving 40 preterm infants (20 with birth weights 1,000–1,500 gm, 20 with birth weights 1,501–2,000 gm).
• Infants received either intramuscular vitamin E (50 mg/kg over 3 days) or were controls.
• Plasma tocopherol levels, hydrogen peroxide hemolysis tests, serum bilirubin, and phototherapy duration were measured.

Main Results:

• Vitamin E administration increased plasma tocopherol concentrations and normalized hemolysis tests.
• Infants ≤1500 gm birth weight receiving vitamin E showed significantly lower serum bilirubin on day 3 and peak levels.
• Phototherapy duration was significantly reduced in vitamin E-supplemented infants (48 vs. 107 hours).

Conclusions:

• Vitamin E supplementation is effective in reducing bilirubin levels and the need for phototherapy in preterm infants, especially those with lower birth weights.
• Vitamin E enhances antioxidant status, potentially offering neuroprotection against bilirubin-induced damage.
• Further research is warranted to optimize vitamin E dosing and timing for preterm infants.