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Factors associated with immunoprophylaxis failure against vertical transmission of hepatitis B virus

Yun-Mi Song1, Joohon Sung, Soonha Yang

  • 1Department of Family Medicine, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, 50 Irwondong, Gangnamgu, Seoul, South Korea. ymsong@smc.samsung.co.kr

European Journal of Pediatrics
|November 23, 2006
PubMed

Insights

Hepatitis B virus (HBV) immunoprophylaxis failure in newborns can occur, particularly when mothers are HBeAg-positive or have detectable HBV DNA. Assessing these maternal factors before childbirth is crucial for identifying high-risk infants.

Area of Science:

  • Hepatology
  • Virology
  • Immunology

Background:

  • Perinatal transmission of Hepatitis B virus (HBV) persists despite immunoprophylaxis.
  • Understanding factors contributing to immunoprophylaxis failure is essential for preventing HBV infection in newborns.

Purpose of the Study:

  • To evaluate factors associated with the failure of Hepatitis B virus (HBV) immunoprophylaxis in infants born to HBsAg-seropositive mothers.
  • To identify specific maternal markers that predict immunoprophylaxis failure.

Main Methods:

  • A cohort of 144 infants born to HBsAg-seropositive mothers received standard HBV immunoprophylaxis (HB immune globulin and HB vaccine).
  • Infants were monitored for HBsAg-seropositivity, indicating immunoprophylaxis failure.
  • Maternal HBeAg and HBV DNA status were assessed.

Main Results:

  • Overall immunoprophylaxis failure rate was 11.8% (17 out of 144 infants).
  • Failure rates were significantly higher in infants born to mothers who were HBeAg-seropositive (21%) and HBV DNA seropositive (27%).
  • Maternal HBeAg and HBV DNA positivity were significantly associated with HBV immunoprophylaxis failure.

Conclusions:

  • Maternal HBeAg and HBV DNA status are critical predictors of HBV immunoprophylaxis failure in infants.
  • Assessing maternal HBeAg and HBV DNA prior to childbirth can help identify infants at high risk for HBV infection.
  • Targeted interventions may be necessary for high-risk neonates to improve HBV prevention efficacy.

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