title: Efficacy and safety of lamivudine treatment for chronic hepatitis B in pregnancy.
abstract: OBJECTIVE
  To evaluate the efficacy and safety of lamivudine treatment of chronic hepatitis B disease in pregnancy.
  
  
  METHODS
  The study group was comprised of 38 chronic HBV patients who were diagnosed pregnant during lamivudine treatment and voluntary to continue the same therapy. The control group was from documented patient data in the literatures. We compared the following parameters with those of a control group: anti-HBV efficacy, complications of pregnancy (abortion, preterm birth, neonatal asphyxia, fetal death, and congenital anomaly), incidence of HBV-positive babies and developmental anomalies in pregnant women treated with lamivudine.
  
  
  RESULTS
  The blocking rate of lamivudine treatment was significantly higher than that of active vaccine immunization for babies with double-positive (HBsAg/HBeAg) mothers with 30-30-10 mug doses of vaccine (74.07%) and with 30-20-10 mug (64.87%). The natural vertical HBV transmission from mother to infant of "double-positive" mothers was 100% (10/10). No pregnancy complication was noted during the observation period, but in the control group the incidences of pregnancy complication were 16.67% (abortion), 43.02%(preterm), 15.62% (neonatal asphyxia), and 4.49% (fetal death), 10.0% (congenital anomaly). No HBV-positive newborn was detected and no developmental anomaly was found in the study group.
  
  
  CONCLUSIONS
  Lamivudine is helpful to prevent maternal-infant HBV transmission and may reduce the complications of HBV-infected pregnant patients.
authors.affiliation: Department of Infection, Sir Run Run Shaw Hospital Affiliated to Zhejiang University, Hangzhou, 310016, Zhejiang Province, China.
authors.forename: Guan-Guan
authors.initials: GG
authors.lastname: Su
authors.forename: Kong-Han
authors.initials: KH
authors.lastname: Pan
authors.forename: Nian-Feng
authors.initials: NF
authors.lastname: Zhao
authors.forename: Su-Hua
authors.initials: SH
authors.lastname: Fang
authors.forename: Dan-Hong
authors.initials: DH
authors.lastname: Yang
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhou
mesh_terms: D005260:Female; D019694:Hepatitis B, Chronic / Q000188:drug therapy*; D006801:Humans; D019259:Lamivudine / Q000009:adverse effects / Q000627:therapeutic use*; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000188:drug therapy*; D018894:Reverse Transcriptase Inhibitors / Q000009:adverse effects / Q000627:therapeutic use*; D016896:Treatment Outcome
chemical_list: D018894:Reverse Transcriptase Inhibitors; D019259:Lamivudine