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Dopplervelocimetria nas gestações complicadas por hiperglicemia: curva do índice de pulsatilidade da artéria umbilical

Authors: Llanos, Isabel Cristina Franco Salem;

Dopplervelocimetria nas gestações complicadas por hiperglicemia: curva do índice de pulsatilidade da artéria umbilical

Abstract

Construir uma curva de PI umbilical exclusiva de gestações complicadas por diabete melito (DM) ou hiperglicemia e compará-la com curvas de referência (Arduini e Rizzo, 1990; Sakamoto, 2007). Estudo longitudinal, onde foram incluídas 163 gestantes e excluídos os casos de gemelaridade, malformação, dificuldade técnica e menos de cinco consultas no pré-natal. Foram avaliados idade materna, índice de massa corporal (IMC) pré-gestacional, número de gestações e associação com tabagismo e hipertensão arterial (HA), além dos níveis de hemoglobina glicada (HbA1c) no final da gestação. No total, foram avaliadas 431 medidas de PI umbilical, entre 24 e 41 semanas de gestação. Para cada semana gestacional foram realizadas medidas de tendência central e de dispersão dos valores atribuídos e calculados os índices dos respectivos percentis (P5, 10, 25, 50 e 95). A correlação, a equação de predição e os intervalos de confiança (IC 95%) foram estimados por análise de regressão linear simples. Realizou-se comparação qualitativa por sobreposição das três curvas e, quantitativa, entre as curvas do estudo e de Sakamoto (2007). Adotou-se o limite de significância de 95% (p < 0,05). A equação de predição do PI umbilical foi expressa por [PI umb = 1,521 - 0,018* semana de gestação]. Os limites de P95 do PI umbilical evoluíram sempre abaixo dos limites da curva de referência de Arduini e Rizzo (1990) e apresentaram queda acentuada a partir da 37ª. semana, quando se confirmou diferença estatística em relação aos índices de Sakamoto (2007). Antes de sua proposição, outros estudos deverão validar a curva desenvolvida nesse estudo

To construct a curve PI umbilical exclusive of pregnancies complicated by diabetes mellitus (DM) or hyperglycemia and compare it with reference curves (Arduini and Rizzo, 1990; Sakamoto, 2007). A longitudinal study where 163 women were included and excluded cases of multiple births, malformations, technical difficulty and less than five prenatal visits. We assessed maternal age, body mass index (BMI) before pregnancy, number of pregnancies and is associated with smoking and hypertension (HA), and levels of glycated hemoglobin (HbA1c) in late pregnancy. In total, 431 measurements were evaluated umbilical PI, between 24 and 41 weeks gestation. For each gestational week were performed measures of central tendency and dispersion values assigned and calculated indices of the respective percentiles (P5, 10, 25, 50 and 95). The correlation equation prediction and confidence intervals (95% CI) were estimated by linear regression analysis. We carried out a qualitative comparison of the three curves overlap and quantitative study between the curves and Sakamoto (2007). The adopted threshold of significance of 95% (p <0.05).The prediction equation was expressed by umbilical PI [PI umb = 1.521 - 0.018 * week of pregnancy]. The limits of the P95 evolved umbilical PI always below the limits of the reference curve of Arduini ...

Pós-graduação em Ginecologia, Obstetrícia e Mastologia - FMB

Country
Brazil
Keywords

Doppler ultrasonography, Dopplervelocimetria, Diabetes na gravidez - Complicações e sequelas, Mulheres grávidas - Doenças, Diagnóstico por imagem, Hiperglicemia - Complicações e sequelas, Utero - Imagem, Feto - Desenvolvimento

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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