Efficacy and safety of immunization for pre- and post- liver transplant children

Authors:
  • YSYoichi Sakakihara
    Yoichi Sakakihara
  • HKHitoshi Kato
    Hitoshi Kato
  • YMYuko Miki
    Yuko Miki
  • NSNoriko Shibuya
    Noriko Shibuya
  • MSMakiko Saito
    Makiko Saito
  • MNMasami Narita
    Masami Narita
  • HKHideo Kawarasaki
    Hideo Kawarasaki
  • TITakashi Igarashi
    Takashi Igarashi
  • KHKohei Hashizume
    Kohei Hashizume
  • TITsutomu Iwata
    Tsutomu Iwata
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Abstract
Infection is a serious complication after liver transplantation. Immunization is one means of controlling infections. The objective of this study was to investigate the efficacy and safety of simultaneous administration of several vaccines before transplantation and the efficacy and safety of administration under immunosuppressive conditions after transplantation. Fifty-eight patients who underwent living-related liver transplantation between April 1994 and March 2000 were included in this study. Simultaneous administration of a maximum of six vaccines was performed in a short period of time before transplantation. We also readministered vaccines to 15 patients with waning antibody titers after transplantation from June 1999. We investigated whether patients could seroconvert for measles, rubella, mumps, and varicella after immunization and how long antibody titers could be retained by measuring them several times throughout the period before and after transplantation. We also examined side effects caused by immunization. The rates of seroconversion against measles, rubella, mumps, and varicella after the pretransplantation vaccination were 82%, 100%, 90%, and 95%, respectively. The rates of reseroconversion against measles, rubella, mumps, and varicella after the posttransplantation revaccination were 85%, 100%, 100%, and 71%, respectively. Although antibody titers against these viruses generally waned with time, no patient exhibited any serious illness or side effects. Although 12 of 58 patients (21%) had an infection, pretransplantation immunization was effective to prevent serious illness, especially for the 6 months after transplantation. Posttransplantation live-vaccine administration under immunosuppressive conditions is effective and safe.

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