HBV TRANSMISSION FROM MOTHERS TO THEIR BABIES AND INFLUENCE OF HBV INFECTION TO MOTHER AND THEIR BABY HEALTH CONDITION

Dinh Thi Binh,Vu Bang Dinh, Nguyen Anh Tuan, Nguyen Kim Nu Hieu

Tran Hung Dao General Hospital, Hanoi, Vietnam

 

Objective of this study were to find out situation of HBV infection in pregnant women and transmission from mothers to their babies in Hanoi, Vietnam. The role of HbeAg and Anti-Hbe in HBV transmission, mothers and their babies heath condition were also observed in research group.

Subject: 1564 pregnant women.

Methods: SP-RIA technique, kit from CIAE were used for detection of HBV marker.

Results: 10.6% of pregnant women were reactive for HbsAg, 27% were reactive for HbsAg and HbeAg, 58,2% were reactive for HbsAg and Anti-Hbe, After 5 years follow-up, in group of patients with HbsAg and HbeAg positive, 100% were reactive for HbsAg and 88.2% had increase of SGOT, SGPT; while in group of patients with HbsAg and Anti-Hbe positive only 90.4% were reactive for HbsAg and 24.1% had increase of SGOT, SGPT.

Some manifestation such as overtime pregnancy , intervention at birth, too much and long bleeding… were higher in the group of the pregnant women with HbsAg positive than group of normal pregnant women (P<0.05) especially higher in pregnant women with HbeAg positive (P<0.001).

After the birth, manifestation of liver function disorder were increased, especially in group of pregnant women who have HbsAg and HbeAg positive to compare with group who have only HbsAg positive or HBsAg and Anti-HBe positive(P<0.001).

Through the examination of HbsAg in umbilical blood or thd babies, we realised that 23.6% of babies who were born from mothers with HBsAg(+) have positive result, while 66.7% of babies who were born from mothers with HBsAg and HBeAg(+) have positive result, 7.6% if babies who were born from mothers with HbsAg and Anti-Hbe(+) were reactive for HBsAg (P<0.001). After one year follow-up, in the group of babies with HbeAg positive, 87.5% were reactive for HbsAg; while in the group of balies with Anti- Hbe positive, only 50% were reactive for HbsAg, After 5 years follow-up no more cases had seroconversion.

One years after the birth, 46.7% of babies with HBsAg(+)had liver function disorder such as increase of SGOT and SGPT, meanwhile there were only 2/30 babies who have clinical picture of hepatitis. After 5 years follow-up only 12-20% of babies with HbsAg positive had slight increase of SGOT, SGPT.

Conclusion: HBV transmission from mothers to their babies were very important route, especially in mothers who have HBeAg positive.

 
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