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本文对比102例住院乙型病毒性肝炎(乙肝)孕产妇的母、婴血HBV标志(HBVM),发现两者的抗-HBc阳性率相等,脐血的HBsAg、抗-HBs及HBeAg的阳性率则为母血的1/3～1/11。提示由IgG为主的抗-HBc可自由通过胎盘。脐血抗原血症阳性率较低的原因则尚未明了。此外,孕妇孕中期发病者脐血HBsAg阳性率较高,而产后发病者则脐血HBeAg阳性率较高。孕妇肝炎活动和HBVM状态对脐血HBVM无明显影响。
This article compared the 102 cases of hepatitis B (hepatitis B) inpatients with maternal and infant blood HBV markers (HBVM) and found that the two anti-HBc positive rate of HBsAg, anti-HBs and HBeAg positive rate of cord blood Then maternal blood 1/3 to 1/11. Tip IgG-based anti-HBc free passage through the placenta. The reason of the low positive rate of umbilical blood antigens is not yet clear. In addition, pregnant women with second trimester HBsAg positive rate of umbilical cord blood, while the incidence of postpartum cord blood HBeAg positive rate higher. Pregnant women’s hepatitis activity and HBVM status had no significant effect on HBVM in cord blood.