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Introduction: Pregnant women and health providers in rural areas of low-income and middle-income countries face multiple problems concerning high-quality obstetric care. This study was performed to identify changes in maternal and perinatal indicators after implementing a model based on education and telecare between a high-complexity hospital in 10 low-complexity hospitals in a southwestern region of Colombia. Methods: A quasiexperimental study with a historic control group and without a pretest was conducted between 2017 and 2019 to make comparisons before and after obstetric emergency care through the use of teleassistance from 10 primary care centers to the referral center (Fundación Valle del Lili, FVL). Results: A total of 470 patients were treated before teleassistance implementation and 154 patients were treated after teleassistance implementation. After program implementation, the maternal clinical indicators showed a 65% reduction in the number of obstetric patients who were referred with obstetric emergencies. The severity of maternal disease that was measured at the time of admission to level IV through the Modified Early Obstetric Warning System score was observed to decrease. Conclusion: The implementation of a model based on education and teleassistance between low-complexity hospitals and tertiary care centers generated changes in indicators that reflect greater access to rural areas, lower morbidity at the time of admission, and a decrease in the total number of emergency events.
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INTRODUCTION: Maternal morbidity and mortality rates associated with perinatal care remain a significant public health concern. Rural populations from low and middle-income countries have multiple barriers to access that contribute to a lack of adherence to prenatal care, and high rates of maternal mortality and morbidity. An intervention model based on telehealth and education was implemented between a tertiary high complex care hospital and a second-level hospital from a limited source region. OBJECTIVES: We sought to identify an association in maternal and perinatal care quality indicators after implementing a model based on telehealth and education for patients with obstetric emergencies between two hospitals in a southwestern region of Colombia. METHODS: We conducted an ecological study between 2017 and 2019 to compare before and after obstetric emergency care through telemedicine from a secondary care center (Hospital Francisco de Paula Santander-HFPS) to the referral center (Fundación Valle del Lili-FVL). The intervention included verification visits to determine the installed capacity of care, a concerted improvement plan, and on-site educational training modules in obstetric and perinatal care. RESULTS: There were 102 and 148 patients treated before and after telemedicine implementation respectively. Clinical indicators after model implementation showed a reduction in perinatal mortality of 29%. In addition, a reduction in the need for transfusion of blood products due to postpartum hemorrhage was observed as well as the rate of eclampsia. CONCLUSIONS: Implementing a model based on telehealth and education between secondary and tertiary care centers allowed the strengthening of the security of care in obstetric emergencies and had a positive effect on perinatal mortality.
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Muerte Perinatal , Telemedicina , Colombia/epidemiología , Urgencias Médicas , Femenino , Humanos , Mortalidad Materna , Mortalidad Perinatal , EmbarazoRESUMEN
OBJECTIVE: To describe the characteristics of amniotic fluid sludge obtained from patients in term and preterm gestations. METHODS: This cross-sectional study included patients with dense aggregates of particulate matter detected in amniotic fluid, observed with transvaginal sonography. All patients were in labor and had an impending delivery, either preterm or at term. Echogenic material contained within amniotic fluid was retrieved transvaginally by needle amniotomy under direct visualization. The amniotic fluid analysis consisted of a Gram stain, cultures for aerobic/anaerobic bacteria and genital mycoplasmas, and a white blood cell count. RESULTS: Twenty-five patients ranging from 18 to 41 weeks of gestation were included in the study. We observed the following: (1) the appearance of amniotic fluid was consistent with pus-like material, vernix, or meconium by naked eye examination; (2) samples collected before 33 weeks of gestation (n = 13) had a pus-like appearance; however, after this gestational age, most of the samples [83% (10/12)] appeared to be consistent with vernix; (3) amniotic fluid cultures were positive for microorganisms in 13 patients, of which 10 were preterm gestations before 33 weeks; (4) the most frequent microorganisms retrieved by culture were genital mycoplasmas (Ureaplasma urealyticum [46% (6/13)]), followed by Mycoplasma hominis [31% (4/13)] and Candida albicans [15% (2/13)]; and (5) patients with sonographic particulate matter in preterm gestations frequently presented acute histologic chorioamnionitis and funisitis, but these conditions were rare in patients at term. CONCLUSION: The nature of amniotic fluid particulate material varies as a function of gestational age. The material obtained in preterm gestations is frequently related to an inflammatory process, while that obtained at term is often consistent with vernix and appears to represent a maturational process.
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Corioamnionitis , Complicaciones Infecciosas del Embarazo , Embarazo , Recién Nacido , Femenino , Humanos , Líquido Amniótico/diagnóstico por imagen , Líquido Amniótico/microbiología , Aguas del Alcantarillado , Amniocentesis , Estudios Transversales , Complicaciones Infecciosas del Embarazo/diagnóstico , Corioamnionitis/diagnóstico , Corioamnionitis/microbiología , Material Particulado , SupuraciónRESUMEN
ABSTRACT Chile, and several Latin American countries, use the Atalah standard to assess nutritional status during pregnancy. However, this standard (underweight: pre-pregnancy body mass index (BMI)<20 kg/m2 and normal weight: pre-pregnancy BMI= 20-24.9 kg/m2) differ from those recommended by the US Institute of Medicine (IOM2009) (underweight: BMI<18.5 kg/m2 and normal weight: 18.5-24.9 kg/m2). Using a large population database from a Chilean public hospital, we compared the prevalence of underweight and normal weight at the beginning of pregnancy with Atalah and IOM2009 standards. Additionally, we evaluated the performance of both standards in detecting adverse neonatal outcomes and gestational weight gain. Methods: Data from clinical records of single birth pregnancies (n= 59,476) at the Sótero del Río Hospital, between 2003-2012 were collected. We compared 1. nutritional status, 2. proportion of excessive gestational weight gain, 3. association between nutritional status and neonatal outcomes (large/small for gestational age, low birth weight, preterm birth and macrosomia), using logistic regression models, and 4. Sensitivity, specificity, and predictive values to predict adverse neonatal outcomes per nutritional status. Results: Pre-pregnancy underweight decreased from 8.6% to 2.5% and women with BMI between 18.5-19.9kg/m2, who exceeded the recommended gestational weight gain increased from 32.7% to 49.2% when using IOM2009 instead of Atalah. Both standards showed low sensitivity, but the IOM2009 cut-off points showed better specificity for identifying healthy newborns. Conclusion: The cut-off points recommended by the IOM2009 better identify the prevalence of underweight and normal weight during pregnancy without increasing neonatal risk. This study supports the recent change of the Ministry of Health in adopting the WHO cut-off points during pregnancy.
RESUMEN Chile y diversos países Latinoaméricanos utilizan el estándar de Atalah para evaluar el estado nutricional (EN) durante el embarazo. Sin embargo, los puntos de corte de este estándar (bajo peso, BP: índice de masa corporal pre-gestacional (IMC)<20 kg/m2 y normal, NP: IMC pregestacional= 20-24,9 kg/m2) difieren de los recomendados por el Instituto de Medicina de EE.UU. (IOM2009) (BP: BMI<18.5kg/m2 and NP: 18,5-24,9 kg/m2). Con datos obtenidos desde el Hospital Sótero del Río, nosotros evaluamos la prevalencia de BP y NP al comienzo del embarazo con los estándares de Atalah e IOM2009. Adicionalmente, nosotros comparamos el comportamiento de ambos estándares en detectar resultados neonatales (RN) adversos y en la clasificación de la ganancia de peso gestacional (GPG). Métodos: Se obtuvieron datos de embarazos simples entre 2003-2012, (n= 59.476). Nosotros comparamos: 1. Prevalencia de EN, 2. Proporción de excesiva GPG, 3. Asociación entre EN y RN, usando modelos de regresión logística, y 4. Sensibilidad, especificidad y valores predictivos para predecir RN según EN. Resultados: La prevalencia de BP pregestacional disminuyó de 8,6% a 2,5% y las mujeres con IMC entre 18,5-19,9 kg/m2 que excedieron la GPG recomendada, incrementaron desde 33% a 50% cuando se utilizó el estándar IOM2009 en vez de Atalah. Ambos estándares mostraron baja sensibilidad, pero IOM2009 mostró mejor especificidad para identificar recién nacidos saludables. Conclusión: Estandar IOM2009 identifica con mayor precisión la prevalencia de BP y NP durante la gestación sin incrementar el riesgo neonatal. Este estudio respalda el reciente cambio del MINSAL al adoptar los puntos de corte de la OMS durante el embarazo.
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Early and innovative diagnostic strategies are required to predict the risk of developing pre-eclampsia (PE). The purpose of this study was to evaluate the performance of gingival crevicular fluid (GCF) placental alkaline phosphatase (PLAP) concentrations to correctly classify women at risk of PE. A prospectively collected, retrospectively stratified cohort study was conducted, with 412 pregnant women recruited at 11-14 weeks of gestation. Physical, obstetrical, and periodontal data were recorded. GCF and blood samples were collected for PLAP determination by ELISA assay. A multiple logistic regression classification model was developed, and the classification efficiency of the model was established. Within the study cohort, 4.3% of pregnancies developed PE. GCF-PLAP concentration was 3- to 6-fold higher than in plasma samples. GCF-PLAP concentrations and systolic blood pressure were greater in women who developed PE (p = 0.015 and p < 0.001, respectively). The performance of the multiparametric model that combines GCF-PLAP concentration and the levels of systolic blood pressure (at 11-14 weeks gestation) showed an association of systolic blood pressure and GCF-PLAP concentrations with the likelihood of developing PE (OR:1.07; 95% CI 1.01-1.11; p = 0.004 and OR:1.008, 95% CI 1.000-1.015; p = 0.034, respectively). The model had a sensitivity of 83%, a specificity of 72%, and positive and negative predictive values of 12% and 99%, respectively. The area under the receiver operating characteristic (AUC-ROC) curve was 0.77 and correctly classified 72% of PE pregnancies. In conclusion, the multivariate classification model developed may be of utility as an aid in identifying pre-symptomatic women who subsequently develop PE.
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BACKGROUND: Gestational diabetes mellitus (GDM) is increasing worldwide and women with a history of GDM are at risk of developing type 2 diabetes which is a risk factor for periodontitis. The aim of this study was to explore the association between the concentrations of matrix metalloproteinase (MMP)-8 and -9 in gingival crevicular fluid (GCF) during early pregnancy with the periodontal diagnosis and the risk of GDM development. METHODS: A prospective cohort study, including 314 women, enrolled at 11 to 14 weeks of pregnancy was conducted. A complete maternal/obstetric and periodontal exam was performed, and GCF samples were obtained for the MMP-8 and -9 determination by Multiplex Elisa Assays. Mann-Whitney test; Spearman's correlation and log-binomial regression model estimated the association between MMPs concentration in GCF and GDM. RESULTS: Fourteen percent of the pregnancies were diagnosed with GDM. An increase in the concentration of MMP-8 and -9 in women with periodontitis stage III and IV compared to periodontitis stage I was observed (99.31 ng/mL [IQR: 85.32] versus 71.95 ng/mL [IQR: 54.04], and 262.4 ng/mL [IQR: 312.55] versus 114.1 ng/mL [IQR: 184.94], respectively). Women who developed GDM showed increased concentrations of MMP-8 and -9 in GCF since the beginning of pregnancy (P = 0.0381; P = 0.0302, respectively). MMP-8 concentration in GCF was associated with GDM (RR: 1.19; P = 0.045; CI 95% 1.00 to 1.40; and RR: 1.20; P = 0.063; CI 95% 0.99 to 1.45 in the adjusted model). CONCLUSION(S): GCF concentrations of MMP-8 and -9 at early of pregnancy are increased in women with severe periodontitis and associated with the GDM development.
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Diabetes Mellitus Tipo 2 , Diabetes Gestacional , Periodontitis , Femenino , Líquido del Surco Gingival , Humanos , Metaloproteinasa 8 de la Matriz , Periodontitis/complicaciones , Embarazo , Estudios ProspectivosRESUMEN
INTRODUCCIÓN: El diagnóstico prenatal de anomalías congénitas tiene como objetivo ofrecer consejería apropiada, identificar aquellas patologías que se benefician de terapia fetal y coordinar la derivación de estas pacientes a centros terciarios para un óptimo manejo perinatal. Para el diagnóstico y manejo de las anomalías congénitas en el Hospital Dr. Sótero Del Río contamos con un equipo multidisciplinario. El objetivo de este estudio es describir nuestra experiencia como centro de referencia en Santiago de Chile en relación al diagnostico prenatal de malformaciones congénitas, estudio genético prenatal y resultados perinatales. MÉTODOS: Estudio retrospectivo y descriptivo. Se incluyó a las pacientes registradas en las bases de datos ecográficas entre 2010 y 2019 del Hospital Dr. Sotero del Rio. Se revisaron fichas clínicas para evaluación y seguimiento postnatal. RESULTADOS: Se evaluaron 404 pacientes con sospecha de malformaciones congénitas o marcadores de aneuploidías. La edad gestacional media de la evaluación fue 29 semanas (14-38 semanas). La mediana de la edad gestacional al parto fue 37.6 semanas (20-41 semanas). Se obtuvo un 78% de recién nacidos vivos, 12% óbitos fetales y 10% mortineonatos. Las malformaciones más frecuentes fueron cardiovasculares, sistema nervioso central, hidrops, extremidades, abdomen y genitourinario. Se realizo el estudio genético en 232 pacientes; 61% resultado normal, 12.5% trisomía 21, 8% trisomía 18, 4% trisomía 13, 4% XO, 4% otras. Se analizaron las pacientes que se acogieron a la ley de interrupción voluntaria del embarazo. CONCLUSIÓN: Destacamos la importancia de derivación a centros de referencia de pacientes con sospecha de malformaciones congénitas para un adecuado diagnostico prenatal, ofrecer un manejo con equipo multidisciplinario y así mejorar los resultados neonatales.
INTRODUCTION: The objectives of prenatal diagnosis of fetal malformations are to offer the patient and her family the proper counseling, identify those conditions that benefits of prenatal therapy and to coordinate the referral to tertiary centers to improve neonatal survival. Our hospital counts with a multidisciplinary team who evaluate the patients together. The objective of this study is to describe our experience as a referral center in prenatal diagnosis, management and neonatal outcomes in Santiago de Chile. METHODS: Retrospective and descriptive study. Patients registered in our prenatal diagnosis database between September 2010 and July 2019 were included. Clinical files were reviewed for neonatal outcomes. OUTCOMES: 404 patients with congenital malformations or aneuploidy markers were evaluated. The average gestational age of the evaluation was 29 weeks. Median gestational age to delivery was 37 weeks plus 6 days. 78% of livebirth, 12% fetal demise and 10% of neonatal death were obtained. The most frequent fetal malformations were cardiovascular, central nervous system, fetal hydrops, extremities, abdominal wall defects and urinary system. Fetal karyotype was performed in 232 patients; 61% normal karyotype, 12.5% trisomy 21, 8% trisomy 18, 4% trisomy 13, 4% monosomy X, 4% others. We also analyze the patients who agreed to termination of pregnancy according to Chilean legislation. CONCLUSION: We highlight the importance of referral of patients with suspected fetal malformations to tertiary centers for an adequate evaluation by a multidisciplinary team of specialists, to improve the survival and neonatal outcome.
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Humanos , Femenino , Embarazo , Adolescente , Adulto , Persona de Mediana Edad , Diagnóstico Prenatal/estadística & datos numéricos , Anomalías Congénitas/diagnóstico , Anomalías Congénitas/epidemiología , Grupo de Atención al Paciente , Derivación y Consulta , Anomalías Congénitas/genética , Resultado del Embarazo , Epidemiología Descriptiva , Estudios Retrospectivos , Estudios de Seguimiento , Edad GestacionalRESUMEN
BACKGROUND: Some nutritional interventions have shown their efficacy in reducing gestational weight gain (GWG); however, their applicability in routine care is limited. OBJECTIVE: We assessed the effectiveness of a low-intensity and high-coverage nutritional intervention on maternal and offspring outcomes; the intervention enhanced existing nutritional health care standards and practices at the primary health care level in Chile. METHODS: This study was a cluster-randomized controlled trial of 12 primary health care centers (PHCCs) from Santiago, Chile. PHCCs were randomly allocated to either nutritional intervention [intervention group (IG), n = 5] or routine care [control group (CG), n = 7]. A total of 4631 pregnant women were recruited (IG, n = 2565; and CG, n = 2066). Primary outcomes were adequate GWG and glycemic control in mothers and birth weight, birth length, macrosomia, and large for gestational age in neonates. The intervention consisted of 4 key actions: training of health care professionals on nutritional recommendations, counseling of pregnant women on diet and physical activity recommendations, offering a physical activity program implemented in the participating PHCCs, and adequate referral to dietitians. Women randomly assigned to the CG received routine antenatal care. RESULTS: At baseline, the mean age was 26.1 y; 45% of women were primipara and 24% were obese. No differences were found in the percentage of women achieving adequate GWG (IG: 30.3%, compared with CG: 31.3%; OR: 0.94; 95% CI: 0.81, 1.09), but women in the IG had lower GWG than those in the CG (11.3 compared with 11.9 kg; mean difference: -0.63 kg; 95% CI: -1.19, -0.08). Effects of the intervention were significantly higher in women with obesity at the begining of pregnancy (mean difference: -1.24 kg; 95% CI: -2.18, -0.30; P for interaction < 0.05). No differences were found between groups regarding maternal glycemic control or neonatal outcomes. CONCLUSIONS: Our findings demonstrate that a low-intensity, high-coverage intervention delivered through the Chilean public health care system under standard operating conditions reduces GWG and has the potential for successful scale-up. This trial was registered at clinicaltrials.gov as NCT01916603.
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Peso al Nacer , Ganancia de Peso Gestacional , Fenómenos Fisiologicos Nutricionales Maternos , Atención Prenatal , Adolescente , Adulto , Glucemia/análisis , Femenino , Humanos , Recién Nacido , Estado Nutricional , Embarazo , Adulto JovenRESUMEN
Objective: Ureaplasma urealyticum and Mycoplasma hominis are the most common microorganisms found in the amniotic fluid of patients at risk for preterm delivery. However, culture techniques for genital mycoplasms require special conditions, are barely considered as part of the evaluation of suspected intra-amniotic infection (IAI) and the results are available within 2 and 7 days. The objectives of this study are to validate the use of two commercially available kits (Mycoplasma IES y MYCOFAST® RevolutioN) for the identification of Ureaplasma spp. and Mycoplasma hominis in amniotic fluid, to compare the results of these kits with those obtained by culture and real-time polymerase chain reaction (qPCR) and to report the antibiotic sensitivity profile of the genital mycoplasms identified.Methods: This is a prospective cohort study including women with singleton and twin gestations between 16 and 36 weeks. Patients were admitted to perform an amniocentesis due to pregnancy complications considered at high risk for IAI (e.g. preterm labor with intact membranes, preterm prelabour rupture of membranes, short cervix, etc.), treatment of polyhydramnios, and for the assessment of fetal death and fever without a focus.Results: Overall, 93 patients underwent amniocentesis and 63 had results available for all tests. The prevalence of a positive culture was 6% (4/63). There were four cases of Ureaplasma spp. and none of Mycoplasma hominis. The qPCR identified one case as Ureaplasma spp., one case as Ureaplasma parvum and two cases as Ureaplasma urealyticum. For all tests, the diagnostic performance was as follows: sensitivity 100% [95% CI (39.8-100%)], specificity 100% [95% CI (93.9-100%)], positive predictive value 100% [95% CI (39.8-100%)] and negative predictive value 100% [95% CI (93.9-100%)]. In this cohort, Ureaplasma spp. showed low resistance to erythromycin, but a high resistance to clindamycin and clarithromycin that may change according to the antibiotic concentration.Conclusions: To our knowledge, this is the first study that validates the use of the Mycoplasma IES and MYCOFAST® RevolutioN kits for the identification of genital mycoplasmas in amniotic fluid. The results of these kits are mostly available within 24 hours, have an excellent correlation with those from broth cultures and qPCR and characterize the antibiotic sensitivity profile of the genital mycoplasms identified, providing an opportunity for specific treatment in cases of IAI. Further validation studies in other populations are needed.
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Mycoplasma hominis , Infecciones por Ureaplasma , Líquido Amniótico , Femenino , Humanos , Recién Nacido , Embarazo , Estudios Prospectivos , Ureaplasma , Infecciones por Ureaplasma/diagnóstico , Infecciones por Ureaplasma/tratamiento farmacológico , Infecciones por Ureaplasma/epidemiología , Ureaplasma urealyticumRESUMEN
BACKGROUND: Gestational diabetes mellitus (GDM) affects around 7% to 10% of all pregnancies. Early detection of predisposition to GDM is the first step in developing efficacious preventive treatment. The objective of the present study was to establish the utility of placental proteins presents in oral fluids (gingival crevicular fluid [GCF] and saliva), and periodontal disease status as early pregnancy predictors of GDM. METHODS: A nested case control within a prospective cohort was conducted. Pregnant systemically healthy women, aged between 18 and 40 years at 11 to 14 weeks gestation were included. Samples of oral fluids were collected and a complete maternal/obstetric and periodontal history was obtained. The concentration of placental growth factor (PlGF) and soluble Fms-like tyrosine kinase 1 (sFlt-1) were measured by enzyme-linked immunosorbent assay in a nested case control sample of the prospective cohort. Multiple logistic regression models assessed the association. The evaluation of the diagnostic accuracy of the biomarkers was performed through receiver operating characteristic (ROC) curves by calculating the area under the curve (AUC). RESULTS: There were recruited 212 pregnant women at 11 to 14 weeks of pregnancy, of these, 14 women (i.e., 6.6%) developed GDM, and displayed significant greater bleeding on probing (BOP) [P = 0.0003]; periodontal probing depth (PD) [P = 0.0028]; clinical attachment level (AL) [P = 0.0008] and periodontal inflamed surface area (PISA) [P = 0.0001]. Similarly, initial glycemia and GCF-PlGF concentrations were significantly greater in women with GDM [P = 0.0012, and P = 0.0019, respectively]. When data were subjected to ROC curve analysis, the combination of initial glycemia and GCF-PlGF concentration delivered an area under the ROC curve of 0.897. Multiple logistic regression analyses demonstrate an association between glycemia (OR 1.21, 95% confidence interval [CI] 1.06 to 1.38; P = 0.005) and GCF-PlGF concentrations in women who developed GDM (OR 1.68, CI 1.05 to 2.68 P = 0.03). CONCLUSIONS: Within the limitations of the present study, the results support that first trimester maternal glycemia combined with GCF-PlGF concentrations could be a surrogate biomarker for the future development of GDM in pre-symptomatic women.
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Diabetes Gestacional , Periodontitis , Preeclampsia , Proteínas Gestacionales , Adolescente , Adulto , Biomarcadores , Femenino , Humanos , Factor de Crecimiento Placentario , Embarazo , Estudios Prospectivos , Receptor 1 de Factores de Crecimiento Endotelial Vascular , Adulto JovenRESUMEN
Introducción: La rotura prematura ovular (RPO) antes de la viabilidad fetal consiste en una complicación obstétrica de baja incidencia, pero de alta morbimortalidad perinatal asociada. Estudios sugieren que el volumen de líquido amniótico (LA) es un factor importante a considerar. El objetivo de este trabajo es evaluar si en RPO ≤24 semanas, un bolsillo vertical máximo (BVM) <2cm al diagnóstico es un factor de riesgo para aparición de morbimortalidad fetal y neonatal. Métodos: Estudio de cohorte longitudinal retrospectivo de 94 pacientes con RPO ≤24 semanas ingresadas a un hospital terciario para manejo expectante entre los años 2005 y 2014. Embarazo gemelar o malformaciones congénitas fueron criterios de exclusión. Se obtuvieron y compararon 2 grupos según BVM al ingreso (BVM ≥ 2 cm y BVM < a 2 cms) y se comparó la edad gestacional (EG) al momento de la RPO y al parto, la latencia desde la RPO al parto, la presencia de corioamnionitis clínica, el número de óbitos fetales, muerte neonatal precoz (primeros 7 días de vida), tardía (entre los 7 y 28 días) y sobrevida global. Resultados: El 58 por ciento de las pacientes presentó un BVM <2 cm al ingreso, el cual se asoció a menor latencia al parto (p:0,01), menor EG al parto (p:0,02), más óbito fetal (p:0,04), mayor muerte neonatal precoz y tardía (p:0,02 y 0,01 respectivamente) además de menor sobrevida global (p:0,01). Conclusiones: La medición de BVM <2 cm al ingreso en pacientes con RPO ≤24 semanas, es un factor de mal pronóstico y debe ser considerado en el manejo clínico de estas pacientes.(AU)
Introduction: Previable premature rupture of membranes (pPROM) is a low-incidence obstetric complication associated with high perinatal morbidity and mortality. Studies suggest that the volume of amniotic fluid (AL) is an important factor to consider. The aim of this study is to evaluate if in RPO ≤24 weeks, a maximum vertical pocket (MVP) <2 cm to the diagnostic is a risk factor for fetal and neonatal morbidity and mortality. Objectives: Evaluate fetal and neonatal morbidity and mortality according to amniotic fluid (AL) Maximum Vertical Pocket (MVP) ≥ or Asunto(s)
Humanos
, Femenino
, Embarazo
, Recién Nacido
, Rotura Prematura de Membranas Fetales
, Enfermedades del Recién Nacido
, Morbilidad
, Atención Perinatal
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ANTECEDENTES: Las aneuploidías y malformaciones congénitas son causa importante de morbi-mortalidad perinatal e infantil en Chile. OBJETIVO: Evaluar la realidad local del diagnóstico genético antenatal para mejorar el resultado perinatal. MÉTODOS: Estudio retrospectivo y descriptivo. Se realizó amniocentesis a embarazadas con indicación de estudio genético prenatal por sospecha ecográfica de alteraciones cromo-sómicas, entre octubre de 2010 y marzo de 2015, en el Hospital Sótero del Río. RESULTADOS: Los hallazgos ecográficos más frecuentes fueron: cardiopatías congénitas, malformaciones del sistema nervioso central y restricción de crecimiento fetal precoz. 164 pacientes aceptaron el estudio invasivo antenatal, obteniéndose resultados de 154. El promedio de edad materna y edad gestacional del examen fueron 30 años y 27+3 semanas, respectivamente. En embarazos con trisomía 21 y 13, el 71% de las pacientes tenía sobre 35 años. Un 31% de las muestras presentaron cariotipo anormal, siendo la más frecuente la trisomía 21 (14%), trisomía 18 (9%), monosomía X (4,5%) y trisomía 13 (2,6%). CONCLUSIÓN: El diagnóstico genético prenatal permite un adecuado manejo perinatal, coordinación apropiada entre las unidades de Obstetricia y Neonatología, y la preparación de las pacientes y sus familias para un pronóstico perinatal adverso.
BACKGROUND: Malformations and aneuploidy are a major cause of perinatal morbidity and mortality in Chile. Invasive techniques are offered to determine the fetal karyotype, when there is an abnormal finding in the ultrasound. AIMS: To assess the local situation of prenatal genetic diagnosis to improve the management of this population. METHODS: This is a retrospective and descriptive study of patients from october 2010 to march 2015, who had an amniocentesis for genetic testing due suspected fetal malformations or aneu-ploidy. RESULTS: The sonographic findings most frequently found were: congenital heart disease, malformations of the central nervous system and early growth restrictions. 164 patients agree to perform invasive prenatal genetic, obtaining 154 results. The average maternal age was 30 years and the mean gestational age at amniocentesis was 27+3 weeks. In trisomy 21 pregnancies, 71% of patients were higher than 35 years. 31% of the samples had abnormal karyotype: trisomy 21 (14%), trisomy 18 (9%), Turner's syndrome (4.5%) and trisomy 13 (3%). CONCLUSIONS: Prenatal genetic diagnosis allows appropriate perinatal management and contributes to prepare the patient and their families for an adverse perinatal outcome.
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Humanos , Femenino , Embarazo , Adolescente , Adulto , Adulto Joven , Diagnóstico Prenatal/métodos , Trastornos de los Cromosomas/diagnóstico , Trastornos de los Cromosomas/genética , Amniocentesis/métodos , Aneuploidia , Trisomía/diagnóstico , Trisomía/genética , Resultado del Embarazo , Chile , Pruebas Genéticas , Epidemiología Descriptiva , Estudios Retrospectivos , Ultrasonografía Prenatal , Cordocentesis , Pruebas Prenatales no InvasivasRESUMEN
OBJECTIVES: The objectives of this study are to explore the feasibility of measuring endothelial and placental biomarkers in saliva and gingival crevicular fluid (GCF) and to determine if patients with preeclampsia (PE) have a different profile of these biomarkers in oral fluids. METHOD: A case-control study was conducted, including patients with PE (n = 10) and a control group with normal pregnancies randomly selected (n = 20) admitted at the Sótero del Río Hospital in Santiago, Chile. A complete periodontal and obstetric history that involved the collection of oral fluids was performed at the same gestational age. Levels of Cd63(+) extracellular vesicles, placental alkaline phosphatase (PLAP), placental growth factor (PlGF), and sFlt-1 levels were determined by ELISA assays. Data analysis was performed with chi-square or Fisher's exact test, and Mann-Whitney U-test for continuous variables. The association was assessed using a multiple logistic regression model. RESULTS: sFlt-1 concentrations in saliva and GCF were significantly higher in patients with PE (p = 0.045 and p = 0.033 respectively). Concentrations of PLAP were elevated in GCF of patients with PE (p = 0.049). The PLAP/CD63(+) ratio in GCF of patients with PE was significantly higher (p = 0.0008). No differences in PlGF levels were observed. CONCLUSION(S): GCF of patients with PE concentrates higher levels of biomarkers related with the PE development. © 2016 John Wiley & Sons, Ltd.
Asunto(s)
Fosfatasa Alcalina/metabolismo , Vesículas Extracelulares/metabolismo , Isoenzimas/metabolismo , Factor de Crecimiento Placentario/metabolismo , Preeclampsia/metabolismo , Saliva/química , Tetraspanina 30/metabolismo , Receptor 1 de Factores de Crecimiento Endotelial Vascular/metabolismo , Adolescente , Adulto , Biomarcadores/metabolismo , Líquidos Corporales/química , Estudios de Casos y Controles , Chile , Ensayo de Inmunoadsorción Enzimática , Femenino , Proteínas Ligadas a GPI/metabolismo , Encía , Humanos , Modelos Logísticos , Análisis Multivariante , Embarazo , Adulto JovenRESUMEN
BACKGROUND: Maternal obesity before and during pregnancy predicts maternal and infant risks of obesity and its associated metabolic conditions. Dietary and physical activity recommendations during pregnancy as well as weight monitoring are currently available in the Chilean primary health care system. However some of these recommendations are not updated and most of them are poorly implemented. We seek to assess the effectiveness of an intervention that enhances the implementation of updated nutrition health care standards (diet, physical activity, and breastfeeding promotion) during pregnancy on maternal weight gain and infant growth. DESIGN & SETTING: Cluster randomized controlled trial. The cluster units will be 12 primary health care centers from two counties (La Florida and Puente Alto) from the South-East Area of Santiago randomly allocated to: 1) enhanced nutrition health care standards (intervention group) or 2) routine care (control group). PARTICIPANTS: Women seeking prenatal care before 15 weeks of gestation, residing within a catchment area of selected health centers, and who express that they are not planning to change residence will be invited to participate in the study. Pregnant women classified as high risk according to the Chilean norms (i.e age <16 or >40 years, multiple gestation, pre-gestational medical conditions, previous pregnancy-related issues) and/or underweight will be excluded. INTERVENTION: Pregnant women who attend intervened health care centers starting at their first prenatal visit will receive advice regarding optimal weight gain during pregnancy and diet and physical activity counseling-support. Pregnant women who attend control health clinics will receive routine antenatal care according to national guidelines. We plan to recruit 200 women in each health center. Assuming a 20% loss to follow up, we expect to include 960 women per arm. MAIN OUTCOME MEASURES: 1) Achievement of adequate weight gain based on IOM 2009 recommendations and adequate glycaemic control at 24-28 weeks of pregnancy according to ADA 2011, and 2) healthy infant growth during the first year of age based on WHO standards. DISCUSSION: We expect that the intervention will benefit the participants in achieving adequate weight gain & metabolic control during pregnancy as well as adequate infant growth as a result of an increased impact of standard nutrition and health care practices. Gathered information should contribute to a better understanding of how to develop effective interventions to halt the maternal obesity epidemic and its associated co-morbidities in the Chilean population. TRIAL REGISTRATION: Clinicaltrials.gov Identifier: NCT01916603.
Asunto(s)
Lactancia Materna , Desarrollo Infantil , Dieta , Actividad Motora , Obesidad/terapia , Atención Posnatal/métodos , Complicaciones del Embarazo/terapia , Atención Prenatal/métodos , Adolescente , Adulto , Chile , Estudios de Cohortes , Femenino , Humanos , Lactante , Recién Nacido , Masculino , Fenómenos Fisiologicos Nutricionales Maternos , Estado Nutricional , Sobrepeso/terapia , Embarazo , Evaluación de Programas y Proyectos de Salud , Aumento de Peso , Adulto JovenRESUMEN
OBJECTIVE: The purpose of this study was to determine whether maternal/fetal single nucleotide polymorphisms (SNPs) in candidate genes are associated with spontaneous preterm labor/delivery. STUDY DESIGN: A genetic association study was conducted in 223 mothers and 179 fetuses (preterm labor with intact membranes who delivered <37 weeks of gestation [preterm birth (PTB)]), and 599 mothers and 628 fetuses (normal pregnancy); 190 candidate genes and 775 SNPs were studied. Single locus/haplotype association analyses were performed; the false discovery rate was used to correct for multiple testing. RESULTS: The strongest single locus associations with PTB were interleukin-6 receptor 1 (fetus; P=.000148) and tissue inhibitor of metalloproteinase 2 (mother; P=.000197), which remained significant after correction for multiple comparisons. Global haplotype analysis indicated an association between a fetal DNA variant in insulin-like growth factor F2 and maternal alpha 3 type IV collagen isoform 1 (global, P=.004 and .007, respectively). CONCLUSION: An SNP involved in controlling fetal inflammation (interleukin-6 receptor 1) and DNA variants in maternal genes encoding for proteins involved in extracellular matrix metabolism approximately doubled the risk of PTB.
Asunto(s)
Estudios de Asociación Genética , Trabajo de Parto Prematuro/genética , Polimorfismo de Nucleótido Simple , Receptores de Interleucina-6/genética , Adulto , Estudios de Casos y Controles , Chile , Corioamnionitis/genética , Matriz Extracelular/genética , Matriz Extracelular/metabolismo , Femenino , Rotura Prematura de Membranas Fetales/genética , Predisposición Genética a la Enfermedad , Variación Genética , Haplotipos , Humanos , Recién Nacido , Recién Nacido Pequeño para la Edad Gestacional/fisiología , Preeclampsia/genética , Embarazo , Nacimiento Prematuro/genética , Adulto JovenRESUMEN
OBJECTIVE: Intrauterine devices (IUDs) are used for contraception worldwide; however, the management of pregnancies with an IUD poses a clinical challenge. The purpose of this study was to determine the outcome of pregnancy in patients with an IUD. STUDY DESIGN: A retrospective cohort study (December 1997-June 2007) was conducted. The cohort consisted of 12,297 pregnancies, of which 196 had an IUD. Only singleton pregnancies were included. Logistic regression analysis was used to adjust for potential confounders between the groups. RESULTS: 1) Pregnancies with an IUD were associated with a higher rate of late miscarriage, preterm delivery, vaginal bleeding, clinical chorioamnionitis, and placental abruption than those without an IUD; 2) among patients with available histologic examination of the placenta, the rate of histologic chorioamnionitis and/or funisitis was higher in patients with an IUD than in those without an IUD (54.2% vs. 14.7%; P<0.001). Similarly, among patients who underwent an amniocentesis, the prevalence of microbial invasion of the amniotic cavity (MIAC) was also higher in pregnant women with an IUD than in those without an IUD (45.9% vs. 8.8%; P<0.001); and 3) intra-amniotic infection caused by Candida species was more frequently present in pregnancies with an IUD than in those without an IUD (31.1% vs. 6.3%; P<0.001). CONCLUSION: Pregnant women with an IUD are at a very high risk for adverse pregnancy outcomes. This finding can be attributed, at least in part, to the high prevalence of intra-amniotic infection and placental inflammatory lesions observed in pregnancies with an IUD.
Asunto(s)
Dispositivos Intrauterinos , Complicaciones del Embarazo/epidemiología , Adulto , Líquido Amniótico/microbiología , Chile/epidemiología , Estudios de Cohortes , Femenino , Humanos , Recién Nacido , Placenta/patología , Embarazo , Complicaciones del Embarazo/microbiología , Complicaciones del Embarazo/patología , Resultado del Embarazo , Pronóstico , Estudios Retrospectivos , Adulto JovenRESUMEN
The past two decades in the United States have seen a 24% rise in spontaneous late preterm delivery (34-36 weeks) of unknown etiology. This study tested the hypothesis that fetal growth was identical prior to spontaneous preterm (n = 221, median gestational age at birth 35.6 weeks) and term (n = 3706) birth among pregnancies followed longitudinally in Santiago, Chile. The hypothesis was not supported: Preterm-delivered fetuses were significantly larger than their term-delivered peers by mid-second trimester in estimated fetal weight, head, limb, and abdominal dimensions, and they followed different growth trajectories. Piecewise regression assessed time-specific differences in growth rates at 4-week intervals from 16 weeks. Estimated fetal weight and abdominal circumference growth rates slowed at 20 weeks among the preterm-delivered, only to match and/or exceed their term-delivered peers at 24-28 weeks. After an abrupt growth rate decline at 28 weeks, fetuses delivered preterm did so at greater population-specific sex and age-adjusted birth weight percentiles than their peers from uncomplicated pregnancies (P < 0.01). Growth rates predicted birth timing: one standard score of estimated fetal weight increased the odds ratio for late preterm birth from 2.8 prior to 23 weeks, to 3.6 (95% confidence interval, 1.82-7.11, P < 0.05) between 23 and 27 weeks. After 27 weeks, increasing size was protective (OR: 0.56, 95% confidence interval, 0.38-0.82, P = 0.003). These data document, for the first time, a distinctive fetal growth pattern across gestation preceding spontaneous late preterm birth, identify the importance of mid-gestation for alterations in fetal growth, and add perspective on human fetal biological variability.