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首页> 中文期刊> 《世界肝病学杂志：英文版（电子版）》 >Immunization status and hospitalization for vaccine-preventable and non-vaccine-preventable infections in liver-transplanted children

Immunization status and hospitalization for vaccine-preventable and non-vaccine-preventable infections in liver-transplanted children

         
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BACKGROUND Infections and associated morbidity and mortality may be more frequent in children who have undergone liver transplant than in healthy children.Immunization strategies to prevent vaccine-preventable infections(VPIs)can effectively minimize this infection burden.However,data on age-appropriate immunization and VPIs in children after liver transplant in Asia are limited.AIM To evaluate the immunization status,VPIs and non-VPIs requiring hospitalization in children who have undergone a liver transplant.METHODS The medical records of children who had a liver transplant between 2004 and 2018 at King Chulalongkorn Memorial Hospital(Bangkok,Thailand)were retrospectively reviewed.Immunization status was evaluated via their vaccination books.Hospitalization for infections that occurred up to 5 years after liver transplantation were evaluated,and divided into VPIs and non-VPIs.Hospitalizations for cytomegalovirus and Epstein-Barr virus were excluded.Severity of infection,length of hospital stay,ventilator support,intensive care unit requirement,and mortality were assessed.RESULTS Seventy-seven children with a mean age of 3.29±4.17 years were included in the study,of whom 41(53.2%)were female.The mean follow-up duration was 3.68±1.45 years.Fortyeight children(62.3%)had vaccination records.There was a significant difference in the proportion of children with incomplete vaccination according to Thailand’s Expanded Program on Immunization(52.0%)and accelerated vaccine from Infectious Diseases Society of America(89.5%)(P<0.001).Post-liver transplant,47.9%of the children did not catch up with ageappropriate immunizations.There were 237 infections requiring hospitalization during the 5 years of follow-up.There were no significant differences in hospitalization for VPIs or non-VPIs in children with complete and incomplete immunizations.The risk of serious infection was high in the first year after receiving a liver transplant,and two children died.Respiratory and gastrointestinal systems were common sites of infection.The most common pathogens that caused VPIs were rotavirus,influenza virus,and varicella-zoster virus.CONCLUSION Incomplete immunization was common pre-and post-transplant,and nearly all children required hospitalization for non-VPIs or VPIs within 5 years posttransplant.Infection severity was high in the first year post-transplant.

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