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Comparison of serologic status of Toxoplasma gondii infection in pre- and post-heart transplantation in a pediatric population: A preliminary study
Authors
M. Amiri
K. Khanaliha
+3 more
M. Mahdavi
E. Orang
S. Sayyahfar
Publication date
1 January 2020
Publisher
Abstract
Background: Toxoplasmosis is an important opportunistic infection in immunocompromised children, especially in heart transplant recipients. This study aimed to investigate pre- and post-transplant serology for toxoplasmosis along with post-transplant PCR in pediatric heart transplant patients. Methods: This cross-sectional study was performed on 38 heart transplant recipients aged 1-17 years, by the end of 2018. Pre- and post-transplant IgM and IgG titrations were measured using ELISA method. Nested PCR of B1 gene was performed to identify Toxoplasma gondii (T gondii) infection after transplant. Results: Totally, 11.4 of patients had positive IgG and 91.4 had negative IgM for toxoplasmosis before heart transplantation. The mean of pre-transplant IgG titration for seropositive and seronegative patients was 22.32 ± 15.30 IU/mL and 1.49 ± 1.15 IU/mL, respectively (P  12 months (1.07 ± 1.27 IU/mL; P =.004) time periods. The result of PCR for B1 gene in all cases was negative. Conclusions: Chemoprophylaxis with TMP/SMX seems to be effective in prevention of T gondii infection or reactivation among pediatric heart transplantation population. Anti-T. gondii-IgG level alone may not be sensitive enough for evaluation of the infection at least after 6 months post-transplantation. © 2020 Wiley Periodicals LL
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eprints Iran University of Medical Sciences
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oai:eprints.iums.ac.ir:23173
Last time updated on 01/12/2020