17 April 2019 : Original article
Clinical Efficacy of Pretransplant Vaccination for Preventing Herpes Zoster After Living Donor Liver Transplantation in Recipients Age 50 Years and Older
Chan Woo Cho1ACEF, Jong Man Kim2AB*, Gyu-Seong Choi2BD, Jae-Won Joh2ADDOI: 10.12659/AOT.914213
Ann Transplant 2019; 24:208-213
Abstract
BACKGROUND: There have been no reports concerning the efficacy of pretransplant herpes zoster (HZ) vaccination following living donor liver transplantation (LDLT).
MATERIAL AND METHODS: From January 2013 to May 2016, 24 patients age 50 years and older received vaccination of HZ prior to transplantation and underwent LDLT at a single institution. We compared this to the 1-year HZ incidence of unvaccinated recipients (N=180) who underwent LDLT in the same time period.
RESULTS: For general characteristics, the MELD scores (p<0.001) and CTP grades (p=0.007) of the vaccinated group were significantly lower than those of the unvaccinated group. In Kaplan-Meier analysis, the 1-year HZ incidence rates of the vaccinated and unvaccinated groups were 2 (8.7%) and 16 (9.9%) cases, respectively (p=0.883). In the subgroup aged 50–59 years, 2 vaccinated recipients had HZ after LDLT. However, in the subgroup aged 60 years and older, no vaccinated recipients had HZ after LDLT. Multivariate analysis showed the independent risk factor for HZ after LDLT was use of mycophenolate mofetil (MMF; hazard ratio [HR]=3.00; p=0.041).
CONCLUSIONS: The efficacy of pretransplant vaccination for preventing HZ was not apparent in our study. A large prospective study is needed to determine the indications for pretransplant HZ vaccination according to age group and to evaluate the efficacy of HZ vaccination after LDLT.
Keywords: Herpes Zoster, Liver Transplantation, Vaccination, Herpes Zoster Vaccine, Immunosuppression Therapy, Incidence, Living Donors, Mycophenolic Acid, Postoperative Complications, Preoperative Care, Prospective Studies, Risk Factors
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