Please use this identifier to cite or link to this item:
https://www.arca.fiocruz.br/handle/icict/8153
DRIED BLOOD SPOT TESTING FOR THE ANTENATAL SCREENING OF HTLV, HIV, SYPHILIS, TOXOPLASMOSIS AND HEPATITIS B AND C: PREVALENCE, ACCURACY AND OPERATIONAL ASPECTS
Author
Affilliation
Associação de Pais e Amigos dos Excepcionais de Salvador – APAE. Salvador, BA, Brasil / Escola Bahiana de Medicina e Saúde Pública. Salvador, BA, Brasil
Associação de Pais e Amigos dos Excepcionais de Salvador – APAE. Salvador, BA, Brasil / Secretaria Estadual de Saúde do Estado da Bahia – SESAB. Salvador, BA, Brasil
Universidade do Estado da Bahia - UNEB. Salvador, BA, Brasil
Associação de Pais e Amigos dos Excepcionais de Salvador – APAE. Salvador, BA, Brasil
Secretaria Estadual de Saúde do Estado da Bahia – SESAB. Salvador, BA, Brasil / Secretaria Municipal de Saúde. Lauro de Freitas, BA, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisa Gonçalo Moniz. Laboratório Avançado de Saúde Pública. Salvador, BA, Brasil / Universidade Federal da Bahia. Faculdade de Farmácia. Salvador, BA, Brasil
Associação de Pais e Amigos dos Excepcionais de Salvador – APAE. Salvador, BA, Brasil / Secretaria Estadual de Saúde do Estado da Bahia – SESAB. Salvador, BA, Brasil
Universidade do Estado da Bahia - UNEB. Salvador, BA, Brasil
Associação de Pais e Amigos dos Excepcionais de Salvador – APAE. Salvador, BA, Brasil
Secretaria Estadual de Saúde do Estado da Bahia – SESAB. Salvador, BA, Brasil / Secretaria Municipal de Saúde. Lauro de Freitas, BA, Brasil
Fundação Oswaldo Cruz. Centro de Pesquisa Gonçalo Moniz. Laboratório Avançado de Saúde Pública. Salvador, BA, Brasil / Universidade Federal da Bahia. Faculdade de Farmácia. Salvador, BA, Brasil
Abstract
tIntroduction: Screening for vertically transmitted infection is mandatory and must be con-ducted at the first prenatal consultation. The most vulnerable women’s groups are those atthe lowest socio-economic level. Dried blood spot testing on filter paper could represent asecure way to screen pregnant women in the prenatal period.Methods: A cross-sectional study was conducted between November 2009 and March 2010,in the Metropolitan Region of Salvador, Bahia, Brazil, to compare the accuracy of the driedblood spot in filter paper and venipuncture serological as screening methods for HIV, HTLV,VHB, VHC, Treponema pallidum, and Toxoplasma gondii during prenatal period. Results of thevenous blood sample collected in tubes were considered the gold standard.Results: Serum samples and dried blood spot were obtained from 692 pregnant women agedbetween 14 and 42 years, with a median age of 26. Thirteen women were seropositive forT. gondii (1.88%; 95% CI: 0.60–2.71%), five for T. pallidum (0.72%; 95% CI: 0.15–1.61%), two forHBV (0.29%; 95% CI: 0.050.95%) and one for HTLV-1 (0.14%; 95% CI: 0.01–0.71%). No one waspositive for HCV and HIV. The dried blood spot accuracy for syphilis and HTLV were 100%(95% CI: 99.25–100) and 100% (95% CI: 99.45–100%), respectively. The average time betweenblood collection and recording of the sample in the reference laboratory was 4.93 (3.82) daysand between dried blood spot processing and active search for pregnant women was 3.44(4.27) days.
Share