Screening for toxoplasmosis during pregnancy: One-year experience in an Italian reference laboratory

Detalhes bibliográficos
Autor(a) principal: Meroni, Valeria
Data de Publicação: 2010
Outros Autores: Genco, Francesca
Tipo de documento: Artigo
Idioma: eng
por
Título da fonte: Scientia Medica (Porto Alegre. Online)
Texto Completo: https://revistaseletronicas.pucrs.br/scientiamedica/article/view/6000
Resumo: AIMS: To describe the experience of the Toxoplasmosis Laboratory of Infectious Disease Department University of Pavia, IRCCS Foundation, San Matteo Polyclinic Pavia, a reference laboratory for diagnosis of toxoplasmosis, in the investigation of pregnant women with suspected acute toxoplasmosis. METHODS: All sera were tested with LIAISON® Toxo IgM and IgG II, Toxo IgG Avidity II kits (DiaSorin, Saluggia, Italy), VIDAS Toxo IgG II and Toxo IgG Avidity (bioMérieux, Marcy l’Etoile, France ), IgM ISAGA (bioMérieux, Marcy l’Etoile, France) and ETI-TOXOK-A reverse PLUS (DiaSorin, Saluggia, Italy). When required (IgG negative/IgM positive women), IgG/IgM Western Blot II (LDBio, Lyon, France) was also performed. Prenatal diagnosis on amniotic fluid was done by nested PCR. All newborns were followed up to one year of age in order to exclude or confirm the diagnosis of congenital toxoplasmosis. All pregnant women with acute or undetermined stages of infection were treated. RESULTS: In the course of 2007, 236 women with suspected acute (IgM-positive) Toxoplasma infection were followed up. In the reference laboratory, 91 women had test results indicating acute toxoplasmosis, and 10 had undetermined status of infection. These 101 patients represented 42.8% of the 236 women referred. Acute toxoplasmosis could be excluded in the remaining 135 patients, of whom 53 were non-immune. Three infected newborns were observed, all from mothers tested for the first time during the third trimester of pregnancy. CONCLUSIONS: The role of a reference laboratory in suspected toxoplasmosis acquired during pregnancy is crucial to date the infection and discriminate between seroconversion and false positive anti-Toxoplasma IgM antibodies. This avoids unnecessary anxiety in immune women, provides correct counseling about primary prevention and periodic testing for seronegative ones, and allows early treatment and follow-up of pregnant women with acute infection and their newborns.
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spelling Screening for toxoplasmosis during pregnancy: One-year experience in an Italian reference laboratoryTriagem para toxoplasmose na gestação: um ano de experiência em um laboratório de referência italianoTOXOPLASMOSISCONGENITALTOXOPLASMOSIS / diagnosisAIMS: To describe the experience of the Toxoplasmosis Laboratory of Infectious Disease Department University of Pavia, IRCCS Foundation, San Matteo Polyclinic Pavia, a reference laboratory for diagnosis of toxoplasmosis, in the investigation of pregnant women with suspected acute toxoplasmosis. METHODS: All sera were tested with LIAISON® Toxo IgM and IgG II, Toxo IgG Avidity II kits (DiaSorin, Saluggia, Italy), VIDAS Toxo IgG II and Toxo IgG Avidity (bioMérieux, Marcy l’Etoile, France ), IgM ISAGA (bioMérieux, Marcy l’Etoile, France) and ETI-TOXOK-A reverse PLUS (DiaSorin, Saluggia, Italy). When required (IgG negative/IgM positive women), IgG/IgM Western Blot II (LDBio, Lyon, France) was also performed. Prenatal diagnosis on amniotic fluid was done by nested PCR. All newborns were followed up to one year of age in order to exclude or confirm the diagnosis of congenital toxoplasmosis. All pregnant women with acute or undetermined stages of infection were treated. RESULTS: In the course of 2007, 236 women with suspected acute (IgM-positive) Toxoplasma infection were followed up. In the reference laboratory, 91 women had test results indicating acute toxoplasmosis, and 10 had undetermined status of infection. These 101 patients represented 42.8% of the 236 women referred. Acute toxoplasmosis could be excluded in the remaining 135 patients, of whom 53 were non-immune. Three infected newborns were observed, all from mothers tested for the first time during the third trimester of pregnancy. CONCLUSIONS: The role of a reference laboratory in suspected toxoplasmosis acquired during pregnancy is crucial to date the infection and discriminate between seroconversion and false positive anti-Toxoplasma IgM antibodies. This avoids unnecessary anxiety in immune women, provides correct counseling about primary prevention and periodic testing for seronegative ones, and allows early treatment and follow-up of pregnant women with acute infection and their newborns.AIMS: To describe the experience of the Toxoplasmosis Laboratory of Infectious Disease Department University of Pavia, IRCCS Foundation, San Matteo Polyclinic Pavia, a reference laboratory for diagnosis of toxoplasmosis, in the investigation of pregnant women with suspected acute toxoplasmosis. METHODS: All sera were tested with LIAISON® Toxo IgM and IgG II, Toxo IgG Avidity II kits (DiaSorin, Saluggia, Italy), VIDAS Toxo IgG II and Toxo IgG Avidity (bioMérieux, Marcy l’Etoile, France ), IgM ISAGA (bioMérieux, Marcy l’Etoile, France) and ETI-TOXOK-A reverse PLUS (DiaSorin, Saluggia, Italy). When required (IgG negative/IgM positive women), IgG/IgM Western Blot II (LDBio, Lyon, France) was also performed. Prenatal diagnosis on amniotic fluid was done by nested PCR. All newborns were followed up to one year of age in order to exclude or confirm the diagnosis of congenital toxoplasmosis. All pregnant women with acute or undetermined stages of infection were treated. RESULTS: In the course of 2007, 236 women with suspected acute (IgM-positive) Toxoplasma infection were followed up. In the reference laboratory, 91 women had test results indicating acute toxoplasmosis, and 10 had undetermined status of infection. These 101 patients represented 42.8% of the 236 women referred. Acute toxoplasmosis could be excluded in the remaining 135 patients, of whom 53 were non-immune. Three infected newborns were observed, all from mothers tested for the first time during the third trimester of pregnancy. CONCLUSIONS: The role of a reference laboratory in suspected toxoplasmosis acquired during pregnancy is crucial to date the infection and discriminate between seroconversion and false positive anti-Toxoplasma IgM antibodies. This avoids unnecessary anxiety in immune women, provides correct counseling about primary prevention and periodic testing for seronegative ones, and allows early treatment and follow-up of pregnant women with acute infection and their newborns.Editora da PUCRS - ediPUCRS2010-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://revistaseletronicas.pucrs.br/scientiamedica/article/view/600010.15448/1980-6108.2010.1.6000Scientia Medica; Vol. 20 No. 1 (2010): Special issue on Toxoplasmosis; 35-39Scientia Medica; v. 20 n. 1 (2010): Número especial sobre Toxoplasmose; 35-391980-61081806-5562reponame:Scientia Medica (Porto Alegre. Online)instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSengporhttps://revistaseletronicas.pucrs.br/scientiamedica/article/view/6000/4955https://revistaseletronicas.pucrs.br/scientiamedica/article/view/6000/5055Meroni, ValeriaGenco, Francescainfo:eu-repo/semantics/openAccess2018-05-12T22:40:59Zoai:ojs.revistaseletronicas.pucrs.br:article/6000Revistahttps://revistaseletronicas.pucrs.br/scientiamedica/PUBhttps://revistaseletronicas.pucrs.br/scientiamedica/oaiscientiamedica@pucrs.br || editora.periodicos@pucrs.br1980-61081806-5562opendoar:2018-05-12T22:40:59Scientia Medica (Porto Alegre. Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false
dc.title.none.fl_str_mv Screening for toxoplasmosis during pregnancy: One-year experience in an Italian reference laboratory
Triagem para toxoplasmose na gestação: um ano de experiência em um laboratório de referência italiano
title Screening for toxoplasmosis during pregnancy: One-year experience in an Italian reference laboratory
spellingShingle Screening for toxoplasmosis during pregnancy: One-year experience in an Italian reference laboratory
Meroni, Valeria
TOXOPLASMOSIS
CONGENITAL
TOXOPLASMOSIS / diagnosis
title_short Screening for toxoplasmosis during pregnancy: One-year experience in an Italian reference laboratory
title_full Screening for toxoplasmosis during pregnancy: One-year experience in an Italian reference laboratory
title_fullStr Screening for toxoplasmosis during pregnancy: One-year experience in an Italian reference laboratory
title_full_unstemmed Screening for toxoplasmosis during pregnancy: One-year experience in an Italian reference laboratory
title_sort Screening for toxoplasmosis during pregnancy: One-year experience in an Italian reference laboratory
author Meroni, Valeria
author_facet Meroni, Valeria
Genco, Francesca
author_role author
author2 Genco, Francesca
author2_role author
dc.contributor.author.fl_str_mv Meroni, Valeria
Genco, Francesca
dc.subject.por.fl_str_mv TOXOPLASMOSIS
CONGENITAL
TOXOPLASMOSIS / diagnosis
topic TOXOPLASMOSIS
CONGENITAL
TOXOPLASMOSIS / diagnosis
description AIMS: To describe the experience of the Toxoplasmosis Laboratory of Infectious Disease Department University of Pavia, IRCCS Foundation, San Matteo Polyclinic Pavia, a reference laboratory for diagnosis of toxoplasmosis, in the investigation of pregnant women with suspected acute toxoplasmosis. METHODS: All sera were tested with LIAISON® Toxo IgM and IgG II, Toxo IgG Avidity II kits (DiaSorin, Saluggia, Italy), VIDAS Toxo IgG II and Toxo IgG Avidity (bioMérieux, Marcy l’Etoile, France ), IgM ISAGA (bioMérieux, Marcy l’Etoile, France) and ETI-TOXOK-A reverse PLUS (DiaSorin, Saluggia, Italy). When required (IgG negative/IgM positive women), IgG/IgM Western Blot II (LDBio, Lyon, France) was also performed. Prenatal diagnosis on amniotic fluid was done by nested PCR. All newborns were followed up to one year of age in order to exclude or confirm the diagnosis of congenital toxoplasmosis. All pregnant women with acute or undetermined stages of infection were treated. RESULTS: In the course of 2007, 236 women with suspected acute (IgM-positive) Toxoplasma infection were followed up. In the reference laboratory, 91 women had test results indicating acute toxoplasmosis, and 10 had undetermined status of infection. These 101 patients represented 42.8% of the 236 women referred. Acute toxoplasmosis could be excluded in the remaining 135 patients, of whom 53 were non-immune. Three infected newborns were observed, all from mothers tested for the first time during the third trimester of pregnancy. CONCLUSIONS: The role of a reference laboratory in suspected toxoplasmosis acquired during pregnancy is crucial to date the infection and discriminate between seroconversion and false positive anti-Toxoplasma IgM antibodies. This avoids unnecessary anxiety in immune women, provides correct counseling about primary prevention and periodic testing for seronegative ones, and allows early treatment and follow-up of pregnant women with acute infection and their newborns.
publishDate 2010
dc.date.none.fl_str_mv 2010-04-16
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistaseletronicas.pucrs.br/scientiamedica/article/view/6000
10.15448/1980-6108.2010.1.6000
url https://revistaseletronicas.pucrs.br/scientiamedica/article/view/6000
identifier_str_mv 10.15448/1980-6108.2010.1.6000
dc.language.iso.fl_str_mv eng
por
language eng
por
dc.relation.none.fl_str_mv https://revistaseletronicas.pucrs.br/scientiamedica/article/view/6000/4955
https://revistaseletronicas.pucrs.br/scientiamedica/article/view/6000/5055
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Editora da PUCRS - ediPUCRS
publisher.none.fl_str_mv Editora da PUCRS - ediPUCRS
dc.source.none.fl_str_mv Scientia Medica; Vol. 20 No. 1 (2010): Special issue on Toxoplasmosis; 35-39
Scientia Medica; v. 20 n. 1 (2010): Número especial sobre Toxoplasmose; 35-39
1980-6108
1806-5562
reponame:Scientia Medica (Porto Alegre. Online)
instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron:PUC_RS
instname_str Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
instacron_str PUC_RS
institution PUC_RS
reponame_str Scientia Medica (Porto Alegre. Online)
collection Scientia Medica (Porto Alegre. Online)
repository.name.fl_str_mv Scientia Medica (Porto Alegre. Online) - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)
repository.mail.fl_str_mv scientiamedica@pucrs.br || editora.periodicos@pucrs.br
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