ABSTRACT
OBJECTIVE: To assess if the low-dose acetylsalicylic acid (ASA) would be capable of modifying endothelial function throughout pregnancy in nulliparous patients. METHODS: A double-blind, randomized clinical trial with 277 were included. A total of 139 were orally administered 100 mg/day of ASA, and 138 received placebo. Endothelial function was assessed by flow-mediated dilation (FMD) in the brachial artery before the start of medication (11-14 weeks) and 20-24 and 30-34 weeks of gestation. The intervention was maintained until 34 weeks. The Mann-Whitney U test was used to compare the placebo and ASA groups. The comparison of FMD during pregnancy was performed using the Friedman test. RESULTS: The groups (ASA and placebo) were similar regarding to age, weight, height, and body mass index (BMI) (p > .005). The comparison of values of FMD (%) between placebo vs. ASA at 11 and 14 weeks (8.9 vs. 9.7%, p: .253), 20 and 24 weeks (8.8 vs. 10.7%, p: .152), and 30 and 34 weeks (10.7 vs. 9.8%, p: .314) did not show significant changes throughout pregnancy. We observed a significant prevalence of PE in the placebo regarding to ASA group [14 (10.2%) vs. 8 (5.8%), p: .171]. CONCLUSION: Acetylsalicylic acid did not modify the endothelial function assessed by FMD of the brachial artery during pregnancy in nulliparous women.
Subject(s)
Aspirin , Endothelium, Vascular , Pregnancy , Humans , Female , Brachial Artery , Double-Blind Method , VasodilationABSTRACT
Objective: To compare maternal and perinatal outcomes between day-time and evening/night-time births in a low-risk population. Material and Methods: The present study had a retrospective and cross-sectional design. The study recruited 421 pregnant women admitted for spontaneous or induced labor, with singleton, full-term pregnancy, without comorbidities, and with birthweight between 2,500 and 4,499 g. Maternal data, including severe bleeding, need for blood transfusion, puerperal infection, and admission to the intensive care unit, and neonatal data including birthweight, Apgar scores at first and fifth minute, oxygen administration, resuscitation, admission to the neonatal care unit, infection, and blood transfusion, were evaluated. Univariate and multivariate analysis and calculation of the prevalence ratio (PR) were performed with a 95% confidence interval (CI). Results: There were no differences in factors of maternal morbidity between delivery times. Newborns delivered during the evening/night-time had a higher prevalence of infection (15.3% vs 7.9%, p=0.019, PR: 2.11, CI 95% 1.13-3.93) and hospitalization in the neonatal care unit (25.8% vs 10.4%, p<0.001, PR: 2.99, CI 95% 1.76-5.10). There was no difference in other perinatal morbidities examined. Conclusion: Evening/night-time births were associated with a higher prevalence of infection and the need for admission to an intensive care unit.
ABSTRACT
To determine the prevalence of endothelial dysfunction and its association with a history of mild and severe preeclampsia in adolescents. Methods: a cross-sectional study was carried out at the MEAC-UFC with 103 primiparous adolescents postpartum. The assessment of endothelial function was performed by way of flow-mediated dilatation of the brachial artery. Variables (age, body mass index, gestational age at delivery, systolic and diastolic blood pressure and flow-mediated dilation) were compared between groups. p<0.05 was considered to be statistically significant. Results: twenty-four (23.3 percent) patients had preeclampsia (PE): 11 mild and 13 severe. The overall prevalence of endothelial dysfunction was 23.3 percent (21.5 percent of patients with normotensive pregnancies and 29.2 percent of the PE patients: 18.2 percent of those with mild PE and 38.5 percent of those with severe PE). The figures were statistically significant for systolic blood pressure, p=0.007. Conclusions: patients with a history of PE have higher systolic blood pressure than patients with a history of normotensive pregnancy, but did not have more endothelial dysfunction...
Determinar a prevalência de disfunção endotelial e a associação com o antecedente de pré-eclâmpsia leve e grave em adolescentes. Métodos: estudo transversal conduzido na MEAC - UFC com 103 adolescentes primíparas no pós-parto. A avaliação da função endotelial foi realizada pela dilatação mediada por fluxo da artéria braquial. As variáveis (idade, índice de massa corporal, idade gestacional no parto, pressão arterial sistólica e diastólica e dilatação mediada por fluxo) foram comparadas entre os grupos. Considerou-se p<0,05 significância estatística. Resultados: vinte e quarto (23,3 por cento) pacientes tiveram pré-eclâmpsia (PE): 11 PE leve e 13 PE grave. A prevalência geral de disfunção endotelial foi de 23,3 por cento (21,5 por cento das pacientes com gestações normotensas e 29,2 por cento das PE: 18,2 por cento daquelas com PE leve e 38,5 por cento daquelas com PE grave). Houve significância estatística para pressão arterial sistólica, p=0,007. Conclusões: pacientes com história de PE apresentam pressão sistólica maior que pacientes com antecedente de gestação normotensa, mas não houve mais disfunção endotelial...
