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Journal of viral hepatitis v.24 no.3, 2017년, pp.246 - 252   SCI SCIE
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Lamivudine therapy during the second vs the third trimester for preventing transmission of chronic hepatitis B

Pan, C. Q. ; Yi, W. ; Liu, M. ; Wan, G. ; Hu, Y.‐H. ; Zhou, M.‐F. ;
  • 초록  

    Summary There are little data on the timing of initiating lamivudine therapy for preventing transmission of hepatitis B in highly viremic mothers. Between May 2008 and January 2015, we retrospectively enrolled mothers with HBV DNA >6?log 10 ?copies/mL who received lamivudine during pregnancy, and we compared them to untreated mothers. The primary measurement was the vertical transmission rate. The secondary outcomes were the mothers’ and infants’ safety. Among 249 consecutive mothers enrolled, 66 and 94 received lamivudine during the second and third trimesters, respectively, and 89 were untreated. At delivery, maternal mean HBV DNA levels were significantly lower in mothers who received lamivudine (4.45?log 10; vs 7.16?log 10 ?copies/mL; P 10 ?copies/mL compared to those treated during the third trimester (98.5% vs 94.7%; P = .40). At the age of 28?weeks, the vertical transmission rates were significantly lower in the lamivudine‐treated mothers vs in the untreated mothers (0% [0/160] vs 5.62% [5/89]; P P >.05). The birth defect rates and mothers’ and infants’ adverse events were similar among the groups. Lamivudine treatment initiated in the second or third trimester for mothers with HBV DNA levels below 9?log 10 ?copies/mL was equally safe and effective in preventing vertical transmission. Thus, lamivudine should be deferred until the third trimester to minimize foetal exposure and drug resistance.


  • 주제어

    immunoprophylaxis .   lamivudine treatment .   mother‐to‐child transmission .   pregnancy .   prevention.  

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