Avaliação dos índices plaquetários e contagem total de plaquetas em gestantes normotensas, com Síndrome de Pré-Eclâmpsia e outros distúrbios hipertensivos da gestação

• Ano de defesa: 2014
• Autor(a) principal: Moraes, Daniela
• Orientador(a): Figueiredo, Carlos Eduardo Poli de
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Pontifícia Universidade Católica do Rio Grande do Sul
• Programa de Pós-Graduação: Programa de Pós-Graduação em Medicina e Ciências da Saúde
• Departamento: Faculdade de Medicina
• País: BR
• Palavras-chave em Português: MEDICINA; OBSTETRÍCIA; PLAQUETAS; HIPERTENSÃO ARTERIAL; GESTANTES; PRÉ-ECLÂMPSIA; GESTAÇÃO - DOENÇAS
• Área do conhecimento CNPq: CNPQ::CIENCIAS DA SAUDE::MEDICINA
• Link de acesso: http://tede2.pucrs.br/tede2/handle/tede/1774

Imbalance in hemostatic mechanisms can occur during pregnancy with a tendency for hypercoagulability and increased thrombosis risk. Pregnant women with a hypertensive disorder, especially preeclampsia, may disclose alterations in total platelet count and the platelet indexes, mean platelet volume (MPV) and immature platelet fraction (IPF). The IPF has been suggested as a sensitive index for monitoring changes in platelet production and destruction. An automated technique for obtaining this parameter has been used. The aim of the present study was to evaluate the immature platelet fraction behavior in patients diagnosed with a gestational hypertensive disorder (GHD), using fluorescent flow cytometry. A crosssectional study conducted at the São Lucas Hospital, Porto Alegre, Brazil to estimate IPF levels in the maternal blood of 99 pregnant women, divided into 3 groups: normotensive controls (NP), preeclampsia syndrome (PES) and non-proteinuric hypertensive pregnancy (nPHP). Following ethical approval and written informed consent, samples were collected from 33 NP, 34 PES, and 32 nPHP women. IPF levels were measured by fluorescent flow cytometry using the XE-5000® (Sysmex Corporation, Kobe, Japan). The IPF and MPV count in pregnant women with a GHD was significantly higher than the control group. No significant difference was detected between the PES and nPHP groups. The MPV for the NP group was normal. A distinct profile in platelet indexes was detected in hypertensive pregnancies. It is suggested that these markers could be used in daily routine as an additional tool in the management of hypertensive pregnant women.