MARCOS MARQUES DA SILVA
Índice h a partir de 2011
11
Projetos de Pesquisa
Unidades Organizacionais
Instituto da Criança, Hospital das Clínicas, Faculdade de Medicina - Médico
2 resultados
Resultados de Busca
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- Longitudinal assessment of lung area measurements by two-dimensional ultrasound in fetuses with isolated left-sided congenital diaphragmatic hernia(2015) RUANO, R.; BRITTO, I. S. W.; SANGI-HAGHPEYKAR, H.; BUSSAMRA, L. C. S.; SILVA, M. M. Da; BELFORT, M. A.; DETER, R. L.; LEE, W.; TANNURI, U.; ZUGAIB, M.ObjectiveTo evaluate lung growth in healthy fetuses and those with congenital diaphragmatic hernia (CDH) using two-dimensional (2D) ultrasound. MethodsFetal right lung measurements obtained by 2D ultrasound between 19 and 37 weeks' gestation were evaluated longitudinally in 66 healthy fetuses and 52 fetuses with isolated left-sided CDH. Right lung areas were determined by the tracing' and longest-diameters' methods and, subsequently, lung area-to-head circumference ratios (LHRs) were calculated. Functions fitted to these size parameters with respect to gestational age were evaluated for three sets of group-wise comparisons: (1) healthy vs CDH fetuses; (2) different degrees of severity of CDH; and (3) CDH fetuses that survived vs those that died by 6 months postpartum. ResultsThere was a significantly slower increase in right lung areas and LHRs with advancing gestational age in CDH fetuses than in healthy individuals (P < 0.05). Compared to those with milder forms of CDH, lung areas and LHRs of fetuses with more severe forms displayed a smaller increase (P < 0.05) and LHRs of fetuses with severe CDH did not increase during pregnancy (P > 0.05). Individuals who died postpartum did not show any increase in LHR (P > 0.05) throughout gestation. ConclusionsThe right lung area and LHR, calculated using either the longest-diameters or tracing method, display reduced growth rates during gestation in cases of isolated left-sided CDH as compared with healthy fetuses. The growth curve characteristics of fetal lung areas and LHRs may be useful for predicting neonatal mortality.
- Prematurity and fetal lung response after tracheal occlusion in fetuses with severe congenital diaphragmatic hernia(2016) SANANES, Nicolas; RODO, Carlota; PEIRO, Jose Luis; BRITTO, Ingrid Schwach Werneck; SANGI-HAGHPEYKAR, Haleh; FAVRE, Romain; JOAL, Arnaud; GAUDINEAU, Adrien; SILVA, Marcos Marques da; TANNURI, Uenis; ZUGAIB, Marcelo; CARRERAS, Elena; RUANO, RodrigoObjective: To evaluate the independent association of fetal pulmonary response and prematurity to postnatal outcomes after fetal tracheal occlusion for congenital diaphragmatic hernia. Methods: Fetal pulmonary response, prematurity (537 weeks at delivery) and extreme prematurity (532 weeks at delivery) were evaluated and compared between survivors and non-survivors at 6 months of life. Multivariable analysis was conducted with generalized linear mixed models for variables significantly associated with survival in univariate analysis. Results: Eighty-four infants were included, of whom 40 survived (47.6%) and 44 died (52.4%). Univariate analysis demonstrated that survival was associated with greater lung response (p = 0.006), and the absence of extreme preterm delivery (p = 0.044). In multivariable analysis, greater pulmonary response after FETO was an independent predictor of survival (aOR 1.87, 95% CI 1.08-3.33, p = 0.023), whereas the presence of extreme prematurity was not statistically associated with mortality after controlling for fetal pulmonary response (aOR 0.52, 95% CI 0.12-2.30, p = 0.367). Conclusion: Fetal pulmonary response after FETO is the most important factor associated with survival, independently from the gestational age at delivery.