Abstract | BACKGROUND: METHODS: From June 1996 to December 1999, 47 pediatric patients with liver transplants were vaccinated with RV. Patients older than 1 year of age, in stable condition, and 6 months post- transplantation were included. The vaccination scheme was 0-1 and 6 months, intramuscular 10 microg in less than 30 kg body weight, and 20 microg in more than 30 kg body weight. The nonresponder patients were vaccinated with a booster dose and a double dose 1 to 6 months after the last dose. Responders to titer HBs Ab enzyme immunoassay (EIA) <10 UI/ml were defined as nonresponders, to titer between 10-100 UI/ml as responders, and to higher titer of 100 UI/ml as high responders. RESULTS: The following data were obtained from the 47 patients: mean +/- standard deviation (SD) age at vaccination was 10.76 +/- 5.96 years old and the mean +/- SD post-transplant time at the beginning of vaccination was 3.56 +/- 2.19 years. Thirty-three of 47 patients (70%) responded to doses according to body weight, and 14 (30%) did not respond, necessitating a booster dose after which 7 responded (50%). The global seroconversion was 85%. There was not a significant responder cyclosporine concentration dosage (154 vs. 150 ng/ml) difference between responders and nonresponders. Sixty-six percent (8 of 12) of patients receiving a triple immunosuppressive scheme ( cyclosporine, steroids, and Azathioprine) had a positive response, while 84% (16 of 19) receiving a double scheme ( cyclosporine and steroids) and 100% (16 of 16) receiving monotherapy with cyclosporine had a positive response. By comparing a triple scheme with monotherapy, the Fisher exact test found a P < 0.01. Incidence of adverse effects (local pain) was 2.63%. CONCLUSION: Immunization with RV was well-tolerated with acceptable seroconversion and safety in recipients after liver transplantation, particularly in those undergoing cyclosporine monotherapy. The population studied showed better results than did other populations of immunosuppressed patients.
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Authors | P Duca, J M Del Pont, D D'Agostino |
Journal | Journal of pediatric gastroenterology and nutrition
(J Pediatr Gastroenterol Nutr)
Vol. 32
Issue 2
Pg. 168-70
(Feb 2001)
ISSN: 0277-2116 [Print] United States |
PMID | 11321387
(Publication Type: Journal Article)
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Chemical References |
- Hepatitis B Antibodies
- Hepatitis B Surface Antigens
- Hepatitis B Vaccines
- Immunosuppressive Agents
- Vaccines, Synthetic
- Cyclosporine
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Topics |
- Child
- Cyclosporine
- Drug Administration Schedule
- Female
- Hepatitis B
(immunology, prevention & control)
- Hepatitis B Antibodies
(biosynthesis, blood)
- Hepatitis B Surface Antigens
(immunology)
- Hepatitis B Vaccines
(administration & dosage, immunology)
- Humans
- Immunization, Secondary
- Immunoenzyme Techniques
- Immunosuppressive Agents
- Injections, Intramuscular
- Liver Transplantation
(immunology)
- Male
- Prospective Studies
- Treatment Outcome
- Vaccines, Synthetic
(administration & dosage, immunology)
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