Aetiological treatment of congenital Chagas' disease diagnosed and monitored by the polymerase chain reaction

Autores
Schijman, Alejandro Gabriel; Altcheh, Jaime Marcelo; Burgos, Juan Miguel; Biancardi, Miguel Angel; Bisio, Margarita María Catalina; Levin, Mariano Jorge; Freilij, Hector León
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Objectives: This prospective study focused on the evaluation of anti-parasitic therapy in congenital Chagas' disease, diagnosed and monitored by PCR and conventional diagnosis. Materials and methods: We studied 152 children born to seroreactive mothers, living in a non-endemic area. Fifty infants aged 0-6 months (GA) were diagnosed by microhaematocrit and PCR and 102 children aged 7 months to 17 years (GB) were diagnosed by serology and PCR. Forty treated patients were monitored for 2 or 3 years by PCR and conventional methods. A competitive-quantitative PCR was used to determine pre-therapy parasitic loads and follow their post-treatment evolution. Results: In GA, the sensitivities of the PCR and microhaematocrit were 100% and 82.4% and their specificities 97% and 100%, respectively. In GB, the sensitivity of the PCR was 73.8% with a specificity of 100%. Pre-therapy parasitic loads ranged from 12.5 to 125 000 and 12.5 to 125 parasite genomic equivalents/mL of blood in GA and GB, respectively. PCR turned negative in all treated pre-therapy PCR positive patients before or at the end of treatment, which was followed by their seronegativation in 10/10 GA, in 3/5 children initiating therapy at 7 months to 2 years of age but in 0/16 initiating therapy at an older age. Two out of the latter patients were occasionally PCR positive during post-treatment, suggesting no parasitological response. Out of nine pre-therapy PCR negative patients, four turned seronegative after treatment, suggesting that in undetermined patients, undetectable parasitic burdens may lead to better post-treatment prognosis. Conclusions: PCR was useful for sensitive diagnosis and therapy monitoring, allowing early detection of refractory cases.
Fil: Schijman, Alejandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina
Fil: Altcheh, Jaime Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina
Fil: Burgos, Juan Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina
Fil: Biancardi, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina
Fil: Bisio, Margarita María Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina
Fil: Levin, Mariano Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina
Fil: Freilij, Hector León. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina
Materia
Competitive Pcr
Congenital Transmission
Kinetoplastid Dna
Parasitological Cure
Trypanosoma Cruzi
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/79736
Acceder
id CONICETDig_b41ca022cc1120f91a2fbd2dc41e46a6
oai_identifier_str oai:ri.conicet.gov.ar:11336/79736
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Aetiological treatment of congenital Chagas' disease diagnosed and monitored by the polymerase chain reactionSchijman, Alejandro GabrielAltcheh, Jaime MarceloBurgos, Juan MiguelBiancardi, Miguel AngelBisio, Margarita María CatalinaLevin, Mariano JorgeFreilij, Hector LeónCompetitive PcrCongenital TransmissionKinetoplastid DnaParasitological CureTrypanosoma Cruzihttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Objectives: This prospective study focused on the evaluation of anti-parasitic therapy in congenital Chagas' disease, diagnosed and monitored by PCR and conventional diagnosis. Materials and methods: We studied 152 children born to seroreactive mothers, living in a non-endemic area. Fifty infants aged 0-6 months (GA) were diagnosed by microhaematocrit and PCR and 102 children aged 7 months to 17 years (GB) were diagnosed by serology and PCR. Forty treated patients were monitored for 2 or 3 years by PCR and conventional methods. A competitive-quantitative PCR was used to determine pre-therapy parasitic loads and follow their post-treatment evolution. Results: In GA, the sensitivities of the PCR and microhaematocrit were 100% and 82.4% and their specificities 97% and 100%, respectively. In GB, the sensitivity of the PCR was 73.8% with a specificity of 100%. Pre-therapy parasitic loads ranged from 12.5 to 125 000 and 12.5 to 125 parasite genomic equivalents/mL of blood in GA and GB, respectively. PCR turned negative in all treated pre-therapy PCR positive patients before or at the end of treatment, which was followed by their seronegativation in 10/10 GA, in 3/5 children initiating therapy at 7 months to 2 years of age but in 0/16 initiating therapy at an older age. Two out of the latter patients were occasionally PCR positive during post-treatment, suggesting no parasitological response. Out of nine pre-therapy PCR negative patients, four turned seronegative after treatment, suggesting that in undetermined patients, undetectable parasitic burdens may lead to better post-treatment prognosis. Conclusions: PCR was useful for sensitive diagnosis and therapy monitoring, allowing early detection of refractory cases.Fil: Schijman, Alejandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; ArgentinaFil: Altcheh, Jaime Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; ArgentinaFil: Burgos, Juan Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; ArgentinaFil: Biancardi, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; ArgentinaFil: Bisio, Margarita María Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; ArgentinaFil: Levin, Mariano Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; ArgentinaFil: Freilij, Hector León. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; ArgentinaOxford University Press2003-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/79736Schijman, Alejandro Gabriel; Altcheh, Jaime Marcelo; Burgos, Juan Miguel; Biancardi, Miguel Angel; Bisio, Margarita María Catalina; et al.; Aetiological treatment of congenital Chagas' disease diagnosed and monitored by the polymerase chain reaction; Oxford University Press; Journal of Antimicrobial Chemotherapy; 52; 3; 9-2003; 441-4490305-7453CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pubmed/12917253info:eu-repo/semantics/altIdentifier/doi/10.1093/jac/dkg338info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jac/article/52/3/441/775863info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:09:39Zoai:ri.conicet.gov.ar:11336/79736instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:09:39.967CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Aetiological treatment of congenital Chagas' disease diagnosed and monitored by the polymerase chain reaction
title Aetiological treatment of congenital Chagas' disease diagnosed and monitored by the polymerase chain reaction
spellingShingle Aetiological treatment of congenital Chagas' disease diagnosed and monitored by the polymerase chain reaction
Schijman, Alejandro Gabriel
Competitive Pcr
Congenital Transmission
Kinetoplastid Dna
Parasitological Cure
Trypanosoma Cruzi
title_short Aetiological treatment of congenital Chagas' disease diagnosed and monitored by the polymerase chain reaction
title_full Aetiological treatment of congenital Chagas' disease diagnosed and monitored by the polymerase chain reaction
title_fullStr Aetiological treatment of congenital Chagas' disease diagnosed and monitored by the polymerase chain reaction
title_full_unstemmed Aetiological treatment of congenital Chagas' disease diagnosed and monitored by the polymerase chain reaction
title_sort Aetiological treatment of congenital Chagas' disease diagnosed and monitored by the polymerase chain reaction
dc.creator.none.fl_str_mv Schijman, Alejandro Gabriel
Altcheh, Jaime Marcelo
Burgos, Juan Miguel
Biancardi, Miguel Angel
Bisio, Margarita María Catalina
Levin, Mariano Jorge
Freilij, Hector León
author Schijman, Alejandro Gabriel
author_facet Schijman, Alejandro Gabriel
Altcheh, Jaime Marcelo
Burgos, Juan Miguel
Biancardi, Miguel Angel
Bisio, Margarita María Catalina
Levin, Mariano Jorge
Freilij, Hector León
author_role author
author2 Altcheh, Jaime Marcelo
Burgos, Juan Miguel
Biancardi, Miguel Angel
Bisio, Margarita María Catalina
Levin, Mariano Jorge
Freilij, Hector León
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Competitive Pcr
Congenital Transmission
Kinetoplastid Dna
Parasitological Cure
Trypanosoma Cruzi
topic Competitive Pcr
Congenital Transmission
Kinetoplastid Dna
Parasitological Cure
Trypanosoma Cruzi
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Objectives: This prospective study focused on the evaluation of anti-parasitic therapy in congenital Chagas' disease, diagnosed and monitored by PCR and conventional diagnosis. Materials and methods: We studied 152 children born to seroreactive mothers, living in a non-endemic area. Fifty infants aged 0-6 months (GA) were diagnosed by microhaematocrit and PCR and 102 children aged 7 months to 17 years (GB) were diagnosed by serology and PCR. Forty treated patients were monitored for 2 or 3 years by PCR and conventional methods. A competitive-quantitative PCR was used to determine pre-therapy parasitic loads and follow their post-treatment evolution. Results: In GA, the sensitivities of the PCR and microhaematocrit were 100% and 82.4% and their specificities 97% and 100%, respectively. In GB, the sensitivity of the PCR was 73.8% with a specificity of 100%. Pre-therapy parasitic loads ranged from 12.5 to 125 000 and 12.5 to 125 parasite genomic equivalents/mL of blood in GA and GB, respectively. PCR turned negative in all treated pre-therapy PCR positive patients before or at the end of treatment, which was followed by their seronegativation in 10/10 GA, in 3/5 children initiating therapy at 7 months to 2 years of age but in 0/16 initiating therapy at an older age. Two out of the latter patients were occasionally PCR positive during post-treatment, suggesting no parasitological response. Out of nine pre-therapy PCR negative patients, four turned seronegative after treatment, suggesting that in undetermined patients, undetectable parasitic burdens may lead to better post-treatment prognosis. Conclusions: PCR was useful for sensitive diagnosis and therapy monitoring, allowing early detection of refractory cases.
Fil: Schijman, Alejandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina
Fil: Altcheh, Jaime Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina
Fil: Burgos, Juan Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina
Fil: Biancardi, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina
Fil: Bisio, Margarita María Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina
Fil: Levin, Mariano Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular "Dr. Héctor N. Torres"; Argentina
Fil: Freilij, Hector León. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños "Ricardo Gutiérrez"; Argentina
description Objectives: This prospective study focused on the evaluation of anti-parasitic therapy in congenital Chagas' disease, diagnosed and monitored by PCR and conventional diagnosis. Materials and methods: We studied 152 children born to seroreactive mothers, living in a non-endemic area. Fifty infants aged 0-6 months (GA) were diagnosed by microhaematocrit and PCR and 102 children aged 7 months to 17 years (GB) were diagnosed by serology and PCR. Forty treated patients were monitored for 2 or 3 years by PCR and conventional methods. A competitive-quantitative PCR was used to determine pre-therapy parasitic loads and follow their post-treatment evolution. Results: In GA, the sensitivities of the PCR and microhaematocrit were 100% and 82.4% and their specificities 97% and 100%, respectively. In GB, the sensitivity of the PCR was 73.8% with a specificity of 100%. Pre-therapy parasitic loads ranged from 12.5 to 125 000 and 12.5 to 125 parasite genomic equivalents/mL of blood in GA and GB, respectively. PCR turned negative in all treated pre-therapy PCR positive patients before or at the end of treatment, which was followed by their seronegativation in 10/10 GA, in 3/5 children initiating therapy at 7 months to 2 years of age but in 0/16 initiating therapy at an older age. Two out of the latter patients were occasionally PCR positive during post-treatment, suggesting no parasitological response. Out of nine pre-therapy PCR negative patients, four turned seronegative after treatment, suggesting that in undetermined patients, undetectable parasitic burdens may lead to better post-treatment prognosis. Conclusions: PCR was useful for sensitive diagnosis and therapy monitoring, allowing early detection of refractory cases.
publishDate 2003
dc.date.none.fl_str_mv 2003-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/79736
Schijman, Alejandro Gabriel; Altcheh, Jaime Marcelo; Burgos, Juan Miguel; Biancardi, Miguel Angel; Bisio, Margarita María Catalina; et al.; Aetiological treatment of congenital Chagas' disease diagnosed and monitored by the polymerase chain reaction; Oxford University Press; Journal of Antimicrobial Chemotherapy; 52; 3; 9-2003; 441-449
0305-7453
CONICET Digital
CONICET
url http://hdl.handle.net/11336/79736
identifier_str_mv Schijman, Alejandro Gabriel; Altcheh, Jaime Marcelo; Burgos, Juan Miguel; Biancardi, Miguel Angel; Bisio, Margarita María Catalina; et al.; Aetiological treatment of congenital Chagas' disease diagnosed and monitored by the polymerase chain reaction; Oxford University Press; Journal of Antimicrobial Chemotherapy; 52; 3; 9-2003; 441-449
0305-7453
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pubmed/12917253
info:eu-repo/semantics/altIdentifier/doi/10.1093/jac/dkg338
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jac/article/52/3/441/775863
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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