Utilidad de la resonancia magnética como estudio imagenológico complementario al ultrasonido en el diagnóstico de malformaciones fetales. Experiencia de dos centros de Medicina Materno Fetal de Latinoamérica / Usefulness of magnetic resonance as a complementary imaging study to ultrasound in the diagnosis of fetal malformations. Experience in two Maternal-fetal Medicine centers in Latin America

Resumen OBJETIVO: Conocer los aportes de la resonancia magnética, como estudio complementario al ultrasonido, en el diagnóstico de malformaciones fetales en el sistema nervioso central, musculoesquelético y tórax en dos unidades de Medicina Materno Fetal. MATERIALES Y MÉTODOS: Estudio retrospectivo, observacional y comparativo, de corte transversal, efectuado con base en la revisión de las historias clínicas registradas durante tres años de pacientes con más de 18 semanas de embarazo remitidas a la Unidad de Medicina Materno Fetal del Hospital San José y la Clínica Colsubsidio por alguna malformación estructural fetal identificada en el sistema nervioso central, musculoesquelético y tórax diagnosticada con base en la ultrasonografía. RESULTADOS: Se revisaron 109 historias clínicas de pacientes embarazadas con fetos con diagnóstico de malformación congénita por ultrasonido. Las indicaciones más frecuentes fueron: anormalidades en el sistema nervioso central en 61.5%; hidrocefalia no comunicante en 36.6% por ultrasonido y 21% por resonancia magnética, seguida de las del tórax con 40.4% por ultrasonido y 36.7% por resonancia magnética y malformaciones del sistema musculoesquelético con 20.1% por ultrasonido y 2.8% por resonancia magnética. La concordancia diagnóstica entre el ultrasonido y el diagnóstico posnatal fue del 66% y el de la resonancia magnética de 76%. En comparación con el ultrasonido inicial la resonancia magnética aumentó la frecuencia de diagnóstico de malformación fetal. CONCLUSIÓN: La resonancia magnética, complementaria al diagnóstico por ultrasonido de malformaciones congénitas, fue más notable en los sistemas nervioso central y musculoesquelético donde permitió mejorar la caracterización de las alteraciones detectadas en el ultrasonido.

Abstract OBJECTIVE: To know the contributions of magnetic resonance imaging, as a complementary study to ultrasound, in the diagnosis of fetal malformations in the central nervous system, musculoskeletal and thorax in two units of Maternal Fetal Medicine. MATERIALS AND METHODS: Retrospective, observational and comparative cross-sectional study, based on the review of medical records recorded during three years of patients with more than 18 weeks of pregnancy referred to the Maternal Fetal Medicine Unit of Hospital San José and Clínica Colsubsidio, for any fetal structural malformation identified in the central nervous system, musculoskeletal and thorax diagnosed based on ultrasonography. RESULTS: We reviewed 109 clinical histories of pregnant patients with fetuses diagnosed with congenital malformation by ultrasound. The most frequent indications were abnormalities of the central nervous system in 61.5%: non-communicating hydrocephalus in 36.6% by ultrasound and 21% by MRI, followed by those of the thorax with 40.4% by ultrasound and 36.7 by MRI and malformations of the musculoskeletal system 20.1% by ultrasound and 2.8% by MRI. The diagnostic agreement between ultrasound and postnatal diagnosis was 66% and that of MRI was 76%. Compared to initial ultrasound, MRI increased the frequency of diagnosis of fetal malformation. CONCLUSION: MRI, complementary to ultrasound diagnosis of congenital malformations, was more notable in the central nervous and musculoskeletal systems where it allowed improving the characterization of the alterations detected by ultrasound.

Lesión renal aguda en mujeres embarazadas / Acute kidney injury in pregnant women

Resumen Aunque en la actualidad la lesión renal aguda en mujeres embarazadas es una complicación poco común, esta se correlaciona con peores desenlaces maternos y fetales. Sus causas son múltiples y varían según el trimestre de presentación. Los cambios fisiológicos renales durante el embarazo hacen que los criterios diagnósticos de lesión renal aguda en la población general no sean fácilmente extrapolables a las pacientes obstétricas, por lo que la sospecha temprana y el tratamiento oportuno son fundamentales para evitar la progresión del daño renal y sus complicaciones sistémicas asociadas, incluidas las metabólicas, urémicas e hidroelectrolíticas.

Abstract Acute kidney injury in pregnant women is currently an uncommon complication, but it is correlated with worse maternal and fetal outcomes. Its causes are multiple and vary according to the quarter of presentation. Renal physiological changes during pregnancy mean that the diagnostic criteria for acute kidney injury in the general population are not easily extrapolated to obstetric patients. For this reason, early suspicion and prompt treatment is essential to avoid the progression of kidney damage and its associated systemic complications, including metabolic, uremic, and electrolyte complications.

Enfermedad renal crónica en mujeres embarazadas / Chronic kidney disease in pregnant women

Resumen La enfermedad renal crónica (ERC), definida como una alteración estructural o funcional renal que persiste por más de 3 meses con o sin deterioro de la función renal o como un filtrado glomerular (FG) <60 mL/min/1,73 m2 sin otros signos de enfermedad renal, es una condición prevalente en la población general; sin embargo, no es tan frecuente en mujeres embarazadas. A pesar de su baja frecuencia en gestantes, el antecedente de enfermedad renal se asocia con peores desenlaces maternos y fetales cuando se presenta ERC. Las fórmulas estándar (CKD-EPI, Cockroft-Gault y MDRD) utilizadas para determinar la tasa de filtrado glomerular en población no obstétrica tienen poca precisión en las embarazadas debido a que subestiman la función renal en aproximadamente un 20 %. Ante esto, el aclaramiento de creatinina medido utilizando recolecciones de orina de 24 horas y la estimación de creatinina sérica que se correlaciona estrechamente con el aclaramiento de inulina (estándar de oro) son opciones que pueden utilizarse durante el embarazo. Asimismo, el reconocimiento temprano de la enfermedad, la optimización de las estrategias de nefroprotección, el evitar las drogas nefrotóxicas y la instauración de un tratamiento específico para la etiología garantizan una mayor sobrevida y un menor número de complicaciones derivadas de la enfermedad renal.

Abstract Chronic Kidney Disease, defined as a renal structural or functional alteration that persists for more than 3 months, with or without deterioration of renal function, or a glomerular filtration rate (GFR) <60 ml / min / 1.73 m2 without other signs of Kidney disease is a prevalent condition in the general population, however, it is not so common to find it in pregnant women. However, a history of kidney disease is associated with worse maternal and fetal outcomes. The standard formulas (CKD-EPI, Cockroft-Gault, and MDRD) used in the non-obstetric population have poor precision in determining glomerular filtration rate, because they underestimate kidney function by approximately 20 %. Creatinine clearance measured using 24-hour urine collections and serum creatinine estimate closely correlates with inulin clearance ("gold standard") and can be used during pregnancy. Early recognition of the disease, optimization of nephroprotection strategies, avoiding nephrotoxic drugs and specific treatment of the etiology, will guarantee a longer survival and fewer complications derived from kidney disease.

Attitudes and collateral psychological effects of COVID-19 in pregnant women in Colombia.

OBJECTIVE: To assess clinical impact, psychological effects, and knowledge of pregnant women during the COVID-19 outbreak in seven cities in Colombia. Currently, there are uncertainty and concerns about the maternal and fetal consequences of SARS-CoV-2 infection during pregnancy. METHODS: A cross-sectional web survey was carried out including pregnant women in seven cities in Colombia. Women were evaluated during the mitigation phase of the SARS-CoV-2 pandemic between April 13 and May 18, 2020. The questions evaluated demographic, knowledge, psychological symptoms, and attitudes data regarding the COVID-19 pandemic. RESULTS: A total of 1021 patients were invited to participate, obtaining 946 valid surveys for analysis. The rate of psychological consequences of the pandemic was much larger than the number of patients clinically affected by the virus, with 50.4% of the entire cohort reporting symptoms of anxiety, 49.1% insomnia, and 25% reporting depressive symptoms. Poorly informed women were more likely to be younger, affiliated to the subsidized regime, and with lower levels of education. CONCLUSION: The knowledge of pregnant women about SARS-CoV-2 infection is far from reality and this seems to be associated with an indirect effect on the concern and psychological stress of pregnant women in Colombia.

Three-dimensional Doppler ultrasonography for the assessment of fetal liver vascularization in fetuses with intrauterine growth restriction.

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.

Normal Intracranial Translucency Values During the First Trimester of Gestation in a Latin American Population.

OBJECTIVES: The purpose of this study was to establish intracranial translucency reference values in healthy fetuses from a Latin American population. METHODS: This work was a cross-sectional retrospective correlational study. A review of sonographic reports from women between gestational ages of 11 weeks and 13 weeks 6 days at 2 health institutes in Bogota, Colombia, whose fetuses had a crown-rump length of 45 to 84 mm was conducted between January 1, 2010, and December 31, 2012. Women with multiple fetuses or with a deceased fetus were excluded. RESULTS: Data corresponding to 1520 obstetric sonographic examinations were included in the statistical analysis. The crown-rump length was between 45 and 84 mm, with a median of 65 mm (interquartile range, 58-73 mm). The median intracranial translucency was 1.7 mm (interquartile range, 1.4-2.2 mm). Different percentiles (1st, 5th, 10th, 25th, 50th, 75th, 90th, 95th, and 99th) were established for each crown-rump length value. A correlation between crown-rump length and intracranial translucency was found, which seemed to be linear. The intracranial translucency value was not significantly correlated with the frontomaxillary angle but was correlated with nuchal translucency, nasal bone length, and metopic suture length. CONCLUSIONS: We present normal intracranial translucency values in the first trimester of single gestations with live fetuses in a Latin American population. These values are similar to those described in other populations. The intracranial translucency value was linearly correlated with crown-rump length in fetuses between gestational ages of 11 weeks and 13 weeks 6 days, which is consistent with previous publications, although these data cannot be interpreted independently.

Maternal near miss morbidity in Colombia: variables related to opportune access to health care related to the number of inclusion criteria / Morbilidad materna extrema en Colombia: variables relacionadas con el acceso oportuno a la atención en salud según el número de criterios de inclusión

Background. In Colombia, maternal near miss morbidity is monitored in the health surveillance system. The National Health Institute included a special report on cases that met three or more World Health Organization criteria according to the World Health Organization criteria. Objective. To estimate the relationship between variables related to opportune access to health care services in Colombia during 2013 depending on inclusion criteria -three or more- for maternal near miss morbidity. Materials and methods. A cross-sectional analysis of the national registry of obligatory notification on maternal near miss morbidity was performed. Cases with three or more criteria were compared with those with one or two according to some variables related to the timely access of health care services. Results. A total of 8 434 maternal near miss morbidity cases were reported, women were aged between 12 and 51 years old (M=26.4, SD=7.5). 961 (11.4%) lived in remote rural areas; 4 537 (53.8%) were uninsured under the health system, or they were affiliated to either the subsidized or special health care regime; 845 (10.0%) belonged to an ethnic minority; 3 696 (44.4%) were referred to a more complex service; 4 097 (49.2%) were admitted to the intensive care unit; and 3 975 (47.1%) met three or more of the inclusion criteria for maternal near miss morbidity. They were combined to meet three or more of the case inclusion criteria: intensive care unit admission (OR=5.58; IC95% 5.06-6.15); being uninsured or affiliated to the subsidized or special regime (OR=1.57; IC95% 1.42-1.74); and referral to a more complex service (OR=1.18; IC95% 1.07-1.31). Conclusions. In Colombia, the timely access of health care services is related to maternal near miss morbidity with three or more inclusion criteria.

Antecedentes. En Colombia, la morbilidad materna extrema es monitoreada en el sistema de vigilancia epidemiológica. El Instituto Nacional de Salud incluyó el análisis particular de los casos que reunieran tres o más criterios de inclusión de definición de caso. Objetivo. Estimar la relación entre variables relacionadas con el acceso oportuno a la prestación de los servicios en salud y los criterios de inclusión -tres o más- para morbilidad materna extrema en Colombia durante 2013. Materiales y métodos. Se realizó un análisis transversal del registro nacional de notificación obligatoria sobre morbilidad materna extrema; los casos con tres criterios o más se compararon con aquellos con uno o dos según algunas variables relacionadas con el acceso oportuno a la prestación de servicios en salud. Resultados. Se notificaron 8.434 casos de morbilidad materna extrema, edades entre 12 y 51 años (M=26.4; DE=7.5). 961 (11.4%) residentes en zona rural remota, 4.537 (53.8%) en régimen no asegurado, subsidiado o especial, 845 (10.0%) pertenecientes a minoría étnica, 3.696 (44.4%) fueron remitidas a un servicio de mayor complejidad, 4.097 (49.2%) recibieron servicios en unidad de cuidados intensivos y 3.975 (47.1%) reunieron tres o más criterios de inclusión de caso morbilidad materna extrema. Se asociaron a reunir tres o más criterios de inclusión de caso: el ingreso a unidad de cuidados intensivos (OR=5.58; IC95% 5.06-6.15), régimen no asegurado, subsidiado o especial (OR=1.57; IC95% 1.42-1.74) y remisión a servicio de mayor complejidad (OR=1.18; IC95% 1.07-1.31). Conclusiones. En Colombia, el acceso oportuno a los servicios de atención en salud se relaciona con morbilidad materna extrema de tres o más criterios de inclusión.