Effects of different feeding patterns on mother-to-child transmission of HBV infections in pregnant women with high viral loads after antiviral medication during pregnancy: A prospective cohort study
10.3760/cma.j.cn113903-20210323-00250
- VernacularTitle:高病毒载量乙型肝炎病毒感染孕妇孕期服用抗病毒药物后不同喂养方式对母婴传播的影响：一项前瞻性队列研究
- Author:
Ruihua TIAN
1
;
Xingming LI
;
Gaofei LI
;
Qiuyun LI
;
Yuzhen ZHANG
;
Jing LYU
;
Biyun XU
;
Yanxiang HUANG
;
Junmei CHEN
;
Yunxia ZHU
;
Yihua ZHOU
Author Information
1. 首都医科大学附属北京佑安医院产科 100069
- Keywords:
Pregnant women;
High viral loads of hepatitis B virus;
Antiviral agents;
Feeding mode;
Mother-to-child transmission
- From:
Chinese Journal of Perinatal Medicine
2021;24(7):497-502
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To study the influence of different feeding patterns on mother-to-child transmission (MTCT) of hepatitis B virus (HBV) in pregnant women with high viral loads who received antiviral medication during pregnancy to the day of delivery.Methods:This prospective cohort study was conducted in Beijing You'an Hospital. From January 1, 2019, to March 31, 2020, and 574 pregnant women with positive hepatitis B surface antigen (HBsAg) and HBV DNA>2×10 5 IU/ml were enrolled. All participants received tenofovir, telbivudine, lamivudine, or propofol tenofovir from 24-28 weeks of gestation and discontinued on the day of delivery, and their neonates were postnatally given routine passive-active immunoprophylaxis. Based on the feeding patterns, the subjects were divided into three groups: breastfeeding ( n=257), bottle-feeding ( n=241) and mixed feeding groups ( n=76). The follow-up data were obtained from liver functions and HBV DNA level of the mothers at 6-8 weeks postpartum and HBV serological markers of infants at 7-12 months. One-way ANOVA, Student-Newman-Keuls, Chi-square test or Fisher exact test, and repeated measures ANOVA were used to analyze the data. Results:The average maternal HBV DNA levels before antiviral treatment did not differ significantly between the three groups [(7.90±0.67), (7.82±0.70), (7.83±0.70) log 10 IU/ml, F=0.912, P>0.05]. HBV DNA level before delivery in the mixed feeding group was slightly lower than that in the breastfeeding and bottle-feeding group [(3.87 ±1.08) vs (4.21±1.17) and (4.30±1.28) log 10 IU/ml, q= 3.052 and 3.831, both P<0.05], while the comparison between the latter two groups showed no significant differences ( P>0.05). After delivery, HBV DNA level in the bottle-feeding group was slightly lower than that in the breastfeeding group [(7.42±0.93) vs (7.69±0.90) log 10 IU/ml, q=4.583, P<0.05]. Among 580 infants (including six pairs of twins), only one bottle-fed infant (0.4%, 1/243) was infected with HBV through MTCT, and none in the breastfeeding or mixed feeding group ( P=0.553). Conclusions:For pregnant women with high viral loads of HBV who have received antiviral medication during pregnancy, although HBV DNA level will rebound after discontinuation upon delivery, breastfeeding is recommended considering it does not increase the risk of MTCT.
