The goal of this observational study is to learn about cytomegalovirus disease epidemiology in pediatric and adult liver transplant recipients in China. The main questions it aims to answer are: * The incidence of Cytomegalovirus (CMV) Infections (including clinical significant CMV reactivations and CMV Diseases) among children and adults Liver transplantation patients in China * All-cause Mortality (Survival probability at 1 year) * Incidence of Allograft Rejection. Number of subjects with allograft rejection * Graft Loss. Incidence of graft loss (re-transplantation) * Late-onset CMV Disease. Incidence of late-onset CMV disease (occurring after 100 days post-randomization) as adjudicated by end point committee * Bacterial Infections. Incidence of bacterial opportunistic infections * Major Fungal Infections. Opportunistic fungal infections * Major Non-CMV Viral Infections. Incidence of non-CMV viral infections We will collect demographic data of participants. All recipients and donors underwent preoperative testing for CMV pp65 antigenemia, plasma CMV DNA, and serum CMV antibody. All the recipients were followed up in a liver transplant follow-up clinic twice weekly for a month after discharge from hospital. After that, patients were followed up weekly for 3 months, fortnightly for 6 months, and monthly for 12 months.
Study Type
OBSERVATIONAL
Enrollment
800
Clinically significant CMV reactivation or CMV disease was observed within 12 months of transplantation
1\. CMV reactivation: CMV-lgG is positive and any one of CMV-lgM, pp65 and CMV-DNA is positive is called CMV reactivation.
Time frame: Within 22 months after liver transplantation
End of follow-up survey
We will perform a follow-up for 22 months if participant is alive and does not observed CMV reactivation.
Time frame: Within 22 months after liver transplantation
Death
The participant died
Time frame: Within 22 months after liver transplantation
Loss to follow-up survey
During follow-up, if we can not connect with participant, we regard this event as loss to follow-up.
Time frame: Within 22 months after liver transplantation
Participants asked to withdraw
During follow-up, participants refuse to keep this study within 22 months after liver transplantation
Time frame: Within 22 months after liver transplantation
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