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Resumen OBJETIVO: Determinar si la exposición al ondansetrón en el primer trimestre del embarazo se asocia, en general, con mayor riesgo de malformaciones orofaciales, cardiopatías congénitas, defectos del septo interventricular, de labio o paladar hendidos. MÉTODOLOGÍA: Revisión sistemática y metanálisis de estudios aleatorizados, cohortes y casos y controles publicados en las bases de datos de PubMed, EMBASE y LILACS. RESULTADOS: Se incluyeron 15 estudios: 11 de cohorte y 4 de casos y controles, con 245,679 mujeres expuestas al ondansetrón en el primer trimestre del embarazo. No se encontró una asociación estadísticamente significativa con malformaciones congénitas en general (RM 1.1; IC95%: 0.99-1.22; I2: 72%), con cardiopatías congénitas (RM 1.05; IC95%: 0.95-1.19; I2: 78%) y con comunicación interventricular (RM 1.2; IC95%: 0.97-1.45; I2: 85%). Se encontró un pequeño aumento en el riesgo de defectos orofaciales en general (RM 1.17; IC95%: 1.04-1.32; I2:0%), no se encontró un riesgo mayor de defecto de labio (RM 1.01; IC95%: 0.84-1.21; I2%: 0%) ni de paladar hendido (RM 1.16; IC95%: 0.9-1.5; I2: 31%). CONCLUSIÓN: Los resultados muestran que el tratamiento con ondansetrón en el primer trimestre del embarazo no se asocia con un aumento de malformaciones congénitas en general, ni con un incremento de cardiopatías, labio o paladar hendido, pero sí con incremento leve del riesgo de malformaciones orofaciales.
Abstract OBJECTIVE: To determine whether ondansetron exposure in the first trimester is associated with an increased risk of any congenital malformations. As secondary outcomes, determine if it is associated with a higher overall risk of congenital heart disease, interventricular septal defects, orofacial malformations, cleft lip defect (with or without palate) or cleft palate. METHODOLOGY: A systematic review with meta-analysis was carried out. The search was carried out in the following databases: PUBMED, EMBASE and LILACS, randomized studies, cohorts and cases and controls were chosen. RESULTS: 15 studies were included, 11 cohort studies and four case-control studies, with 245,679 women exposed to ondansetron in the first trimester. No statistically significant association was found with overall congenital malformations (OR, 1.1; 95%, CI 0.99-1.22 I2: 72%), nor with congenital heart diseases (OR, 1.05; 95%, CI 0.95-1.19 I2: 78%) not with ventricular septal defects (OR, 1.2 95% CI 0.97 - 1.45 I2: 85%). A small increased risk was found for overall orofacial defects (OR, 1.17 95% CI 1.04 - 1.32 I2:0%), no increased risk was found for lip defect (with or without palate) (OR, 1.01 CI 95% 0.84 -1.21 I2%: 0%) or cleft palate (OR, 1.16 95% CI 0.9 - 1.5 I2: 31%). CONCLUSION: The results show that the use of ondansetron in the first trimester is not associated with an increase in overall congenital malformations, nor with an increase in heart disease, cleft lip and/or palate, but there is a slight increase in the risk of orofacial malformations.
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OBJECTIVE: To demonstrate changes in hepatic volume and vascular indices in fetuses with intrauterine growth restriction (IUGR) compared with normal-growth fetuses, using a noninvasive method (three-dimensional power Doppler ultrasound). METHODS: The present cross-sectional study was conducted between September 1 and November 30, 2014, at a maternal-fetal medicine unit in Bogotá, Colombia; it included consecutive women at 24-34 weeks of pregnancy. The fetal liver volume and indices of hepatic vascularization were determined with three-dimensional power Doppler ultrasonography and compared between fetuses with and without a diagnosis of IUGR. Results A total of 119 women met study inclusion criteria; 97 fetuses had no growth restriction, whereas 22 fetuses had IUGR. The latter group had decreased liver volume (57.85 ± 29.71 mL vs 86.99 ± 31.24 mL; P=0.010) and increased vascular indices (vascularization index, 47.92 ± 34.44 versus 22.46 ± 18.95; flow index, 71.39 ± 42.01 versus 41.11 ± 23.24; vascularization flow index, 47.94 ± 47.96 versus 13.67 ± 22.38; P=0.003 for all comparisons). CONCLUSION: Liver volume was decreased and liver vascular indices values were increased in fetuses with IUGR. These findings imply that evaluation of hepatic vascularization with three-dimensional hepatic Doppler could be useful in the diagnosis of IUGR.
Assuntos
Retardo do Crescimento Fetal/diagnóstico por imagem , Fígado/diagnóstico por imagem , Ultrassonografia Pré-Natal/métodos , Adulto , Estudos de Casos e Controles , Colômbia , Estudos Transversais , Feminino , Humanos , Imageamento Tridimensional/métodos , Fígado/irrigação sanguínea , Gravidez , Fatores de Risco , Ultrassonografia Doppler/métodos , Adulto JovemRESUMO
Objetivo: describir el nivel de conocimientos acerca del diagnóstico, tratamiento y pronóstico de la isoinmunización materna entre los especialistas de Ginecología y Obstetricia afiliados a la Asociación Bogotana de Perinatología (ABP). Materiales y métodos: estudio descriptivo de corte transversal. Entre noviembre de 2012 y marzo de 2013, se aplicó una encuesta elaborada por especialistas en Medicina Materno-Fetal (MMF). Se excluyeron los profesionales que ejercen su actividad fuera del territorio nacional, aquellos que no han practicado la obstetricia durante los últimos diez años y a quienes no suministraron la totalidad de la información requerida. El instrumento estuvo compuesto por 18 preguntas organizadas en tres dominios: características sociodemográficas, información sobre la práctica clínica y conocimientos. Se utilizó estadística descriptiva para el análisis en la materia. Resultados: el instrumento se aplicó a 220 profesionales de los cuales 127 (57,7 %) respondieron la encuesta en su totalidad y fueron incluidos en el análisis. El 32 % de los obstetras y el 45 % de los especialistas en MMF identificaron correctamente el punto de corte para el coombs indirecto. El 43 y 62 % de los obstetras y especialistas en MMF reconocieron el papel de la velocimetría de la arteria cerebral media para el diagnóstico de anemia fetal, y el 82 y 76 % respectivamente la utilizarían en el seguimiento del feto anémico. Tan solo el 76 % de los obstetras y el 66 % de los especialistas en MMF reconocen las indicaciones de culminar la gestación en caso de anemia fetal, en tanto que el 90 y 97 % (respectivamente) identificaron cuándo realizar cordocentesis y transfusión in utero. Finalmente, el 37 % de los obstetras y el 48 % de los especialistas en MMF no reconocen a la curva de Queenan-Liley como una alternativa cuando no hay acceso al Doppler fetal. Conclusión: existe una importante variabilidad con respecto al nivel de conocimientos de los obstetras y especialistas en MMF en cuanto al diagnóstico, tratamiento y seguimiento de las gestantes con isoinmunización. Se requieren más estudios que caractericen la variabilidad en la práctica clínica acerca del diagnóstico y tratamiento de la isoinmunización materna en Colombia.
Objective: To describe the level of knowledge regarding the diagnosis, treatment and prognosis of maternal isoimmunisation among Gynaecology and Obstetrics specialists, members of ABP (Asociación Bogotana de Perinatología). Materials and methods: Cross-sectional descriptive study. A questionnaire prepared by specialists in Maternal and Foetal Medicine (MFM) was administered between November 2012 and March 2013. Professionals practicing outside the national territory, those who had not practiced over the past ten years, and those who did not provide all the information required were excluded. The tool consisted of 18 questions organized in three domains: socio-demographic characteristics, information about clinical practice, and knowledge of the subject. A descriptive statistical analysis was used. Results: Of the 220 practitioners who were given the questionnaire, 127 (57.7%) completed the survey and were included in the analysis. The cut-off point for the indirect Coombs was correctly identified by 32% of the obstetricians and by 45% of the specialists in MFM. The role of middle cerebral artery velocimetry for the diagnosis of foetal anaemia was recognized by 43% and 62% of obstetricians and specialists in MFM, and 82% and 76%, respectively, would use it for the follow-up of foetuses with anaemia. Only 76% of obstetricians and 66% of MFM specialists recognized the indications for delivering the baby in cases of foetal anaemia, whereas 90% and 97%, respectively, identified the timing for cordocentesis and in utero transfusion. Finally, 37% of obstetricians and 48% of MFM specialists did not recognize the Queenan-Liley curve as an option in cases where there is no access to foetal Doppler. Conclusion: There is an important variability in the level of knowledge among obstetricians and MFM specialists regarding the diagnosis, treatment and follow-up of pregnant women with isoimmunisation. Additional studies are required to characterize the variability in clinical practice regarding the diagnosis and treatment of maternal isoimmunisation in Colombia.
