High First Trimester Levels of TSH as an Independent Risk Factor for Gestational Diabetes Mellitus: A Retrospective Cohort Study.

Although numerous articles have found an association between alterations in thyroid function and the risk of gestational diabetes mellitus (GDM), other studies have failed to demonstrate this association. This may be due to the different cut-off points used to define subclinical hypothyroidism. We aim to clarify the role of thyroid stimulating hormone (TSH) level in GDM within pregnant women with normal free thyroxine (fT4) levels. This retrospective cohort study was performed in 6775 pregnant women. The association between TSH and GDM was assessed by bivariate and multivariate logistic regression. Pregnant women with subclinical hypothyroidism are at significantly greater risk for GDM when compared with euthyroid pregnant women (OR = 1.85; 95% CI = 1.36-2.52). We have also observed that TSH levels increase the risk of GDM within euthyroid pregnant women, since the TSH levels between 2.5 and 4.71 showed a higher risk of GDM than those whose TSH levels are between 0.31 and 2.49 (OR = 1.54; 95% CI = 1.28-1.84). In addition, pregnant women with positive thyroid antibodies have almost 2.5 times the risk of developing GDM (OR = 2.47; 95% CI = 1.57-3.89). Our results support that in pregnant women with normal fT4 levels, higher first trimester TSH level implies a higher risk of GDM.

INTERGROWTH-21st versus a customized method for the prediction of neonatal nutritional status in hypertensive disorders of pregnancy.

BACKGROUND: Hypertensive disorders of pregnancy (HDP) generate complications and are one of the principal causes of maternal, foetal, and neonatal mortality worldwide. It has been observed that in pregnancies with HDP, the incidence of foetuses small for their gestational age (SGA) is twice as high as that in noncomplicated pregnancies. In women with HDP, the identification of foetuses (SGA) is substantially important, as management and follow-up are determined by this information. OBJECTIVE: The objective of this study was to evaluate whether the INTERGROWTH-21st method or customized birthweight references better identify newborns with an abnormal nutritional status resulting from HDP. METHOD: A comparative analysis study was designed with two diagnostic methods for the prediction of neonatal nutritional status in pregnancies with HDP. The performance of both methods in identifying neonatal malnutrition (defined by a neonatal body mass index < 10th centile or a ponderal index < 10th centile) was assessed by calculating sensitivity, specificity, positive predictive value, negative predictive value, diagnostic odds ratio, Youden's index and probability ratios. RESULTS: The study included 226 pregnant women diagnosed with HDP. The customized method identified 45 foetuses as small for gestational age (19.9%), while the INTERGROWTH-21st method identified 27 newborns with SGA (11.9%). The difference between proportions was statistically significant (p < 0.01). Using body mass index (< 10th centile) as a measure of nutritional status, newborns identified as SGA by the customized method showed a higher risk of malnutrition than those identified as SGA by INTERGROWTH-21st (RR: 4.87 (95% CI: 1.86-12.77) vs. 3.75 (95% CI: 1.49-9.43)) (DOR: 5.56 (95% CI: 1.82-16.98) vs. 4.84 (95% CI: 1.51-15.54)) Even when using Ponderal index (< 10th centile), newborns identified as SGA by the customized method showed a higher risk of malnutrition than those identified as SGA by INTERGROWTH-21st (RR 2.37 (95% CI: 1.11-5.05) vs. 1.68 (95% CI: 0.70-4.03))(DOR 2.62 (95% CI: 1.00-6.87) vs. 1.90 (95% CI: 0.61-5.92)). CONCLUSION: In pregnant women with HDP, the predictive ability of the customized foetal growth curves to identify neonatal malnutrition appears to surpass that of INTERGROWTH-21st.

"INTERGROWTH21st vs customized fetal growth curves in the assessment of the neonatal nutritional status: a retrospective cohort study of gestational diabetes".

BACKGROUND: Gestational diabetes mellitus is associated with increased incidence of adverse perinatal outcomes including newborns large for gestational age, macrosomia, preeclampsia, polyhydramnios, stillbirth, and neonatal morbidity. Thus, fetal growth should be monitored by ultrasound to assess for fetal overnutrition, and thereby, its clinical consequence, macrosomia. However, it is not clear which reference curve to use to define the limits of normality. Our aim is to determine which method, INTERGROWTH21st or customized curves, better identifies the nutritional status of newborns of diabetic mothers. METHODS: This retrospective cohort study compared the risk of malnutrition in SGA newborns and the risk of overnutrition in LGA newborns using INTERGROWTH21st and customized birth weight references in gestational diabetes. The nutritional status of newborns was assessed using the ponderal index. Additionally, to determine the ability of both methods in the identification of neonatal malnutrition and overnutrition, we calculate sensitivity, specificity, positive predictive value, negative predictive value and likelihood ratios. RESULTS: Two hundred thirty-one pregnant women with GDM were included in the study. The rate of SGA indentified by INTERGROWTH21st was 4.7% vs 10.7% identified by the customized curves. The rate of LGA identified by INTERGROWTH21st was 25.6% vs 13.2% identified by the customized method. Newborns identified as SGA by the customized method showed a higher risk of malnutrition than those identified as SGA by INTERGROWTH21st. (RR 4.24 vs 2.5). LGA newborns according to the customized method also showed a higher risk of overnutrition than those classified as LGA according to INTERGROWTH21st. (RR 5.26 vs 3.57). In addition, the positive predictive value of the customized method was superior to that of INTERGROWTH21st in the identification of malnutrition (32% vs 27.27%), severe malnutrition (22.73% vs 20%), overnutrition (51.61% vs 32.20%) and severe overnutrition (28.57% vs 14.89%). CONCLUSIONS: In pregnant women with DMG, the ability of customized fetal growth curves to identify newborns with alterations in nutritional status appears to exceed that of INTERGROWTH21st.

Implementación quirúrgica de la histerectomía vía laparoscópica en el Hospital General Santa María del Puerto (Cádiz) / Surgical implementation of laparoscopic hysterectomy at the Hospital General Santa María del Puerto (Cádiz)

OBJETIVO: aportar nuestra experiencia en la introducción e implementación de la vía de abordaje laparoscópica para la realización de procedimientos quirúrgicos de histerectomía. MATERIAL Y MÉTODOS: estudio descriptivo observacional prospectivo de las 60 primeras histerectomías laparoscópicas realizadas en el Hospital General Santa María del Puerto (Cádiz), por el mismo equipo quirúrgico, estudiando variables tales como el porcentaje de complicaciones y efectos adversos, tiempo quirúrgico, conversión a laparotomía, pérdida hemática o estancia hospitalaria, entre otras. RESULTADOS: se realizaron 50 histerectomías totales y 10 supracervicales. La indicación quirúrgica más frecuente fue la miomatosis uterina. La edad media de las pacientes fue de 51 años, con un índice de masa corporal medio de 27,74 y un porcentaje de pacientes con laparotomía previa del 31,6%. El porcentaje de complicaciones fue del 5%, registrándose una lesión intestinal, una lesión vesical y una fístula vesicovaginal. El porcentaje de conversión a laparotomía fue del 3,3%. El tiempo quirúrgico medio de los procedimientos fue de 115 minutos. Por último, la estancia hospitalaria media fue de 2,55 días, con una pérdida hemática media de 0,7 gr/dl de hemoglobina. CONCLUSIONES: nuestros resultados confirman que la vía de abordaje laparoscópica es un método seguro y reproducible (con una correcta curva de aprendizaje), para la realización de histerectomías en ginecología, aportando importantes ventajas respecto al abordaje laparotómico clásico

OBJECTIVE: Contribute with our experience in the introduction and implementation of the laparoscopic approach, for the performance of hysterectomy surgical procedures. MATERIAL AND METHODS: Prospective observational descriptive study of the first 60 laparoscopic hysterectomies performed at the Hospital General Santa María del Puerto (Cádiz), by the same surgical team. Studying variables such as the percentage of complications and adverse effects, surgical time, conversion to laparotomy, blood loss or hospital stay, among others. RESULTS: 50 total and 10 supracervical hysterectomies were performed. The most frequent surgical indication was uterine myomatosis. The mean age of the patients was 51 years, with an average body mass index of 27.74 and a percentage of patients with a previous laparotomy of 31.6%. The percentage of complications was 5%, with an intestinal lesion, a bladder lesion and a vesicovaginal fistula. The conversion rate to laparotomy was 3.3%. The mean surgical time of the procedures was 115 minutes. Finally, the mean hospital stay was 2.55 days, with an average blood loss of 0.7 gr/dl of hemoglobin. CONCLUSIONS: Our results confirm that the laparoscopic approach is a safe and reproducible method (with a correct learning curve), for the performance of hysterectomies in gynecology, providing important advantages over the classical laparotomic approach

Neuroapoptosis in newborns with respiratory acidosis at birth.

BACKGROUND: S100B protein is one of the most accurate biomarkers for diagnosis of neuroapoptosis and brain damage. The aim was to evaluate the lactate concentration and acid-base balance (pH, pCO2, pO2, HCO3c and BEb) in umbilical cord blood to predict high risk of neuroapoptosis and analyze the relationship between the levels of these biomarkers and umbilical cord blood S100B protein concentration at birth. METHODS: Apparently healthy newborns were included. S100B protein and blood gas test (lactate and acid-base balance) were determined in umbilical cord blood at birth. Newborns were classified into two groups: with and without high risk of neuroapoptosis. Newborns with high umbilical cord blood S100B protein concentration were considered newborns at high risk of neuroapoptosis. RESULTS: Sixty-one newborns were included, 12 had high risk of neuroapoptosis and 49 did not. S100B protein concentration correlate directly with pCO2 levels (Rho: 0.286, p = .0321) and lactate concentration (Rho: 0.278, p = .0315); and indirectly with pH (Rho: -0.332, p = .01). The analysis of the ROC curves yielded significant curves for pH and pCO2 to predict high risk of neuroapoptosis, pH optimal cutoff value was 7.19 (sensitivity: 50%, specificity: 83.7%, AUC: 0.708); and pCO2 optimal cutoff value was 60 mmHg (sensitivity: 30%, specificity: 85.4%, AUC: 0.705). CONCLUSIONS: Respiratory acidosis is associated to high concentrations of S100B protein in umbilical cord blood at birth. Umbilical cord blood pH and pCO2 may be useful in differentiating newborns at high risk of neuroapoptosis. Umbilical cord blood gas test may be valuable as risk indicator for neuroapoptosis at birth.

[Overweight and obesity at risk factors for hypertensive states of pregnancy: a retrospective cohort study]. / Sobrepeso y obesidad como factores de riesgo de los estados hipertensivos del embarazo: estudio de cohortes retrospectivo.

INTRODUCTION: obesity has been associated with an increased risk of preeclampsia and gestational hypertension. OBJECTIVE: to determine if overweight and/or maternal obesity at the beginning of the pregnancy are associated with an increased risk of suffering from some hypertensive state of pregnancy in a population of southern Spain. METHODS: retrospective cohort study. We studied 4,711 cases where the IMC had been registered at the beginning of pregnancy. Two study groups were included: overweight/obesity at the beginning of the gestation. CONTROL GROUP: pregnant women with normal BMI at the beginning of gestation. Global risk of hypertensive disorders of pregnancy (HDP) and the risk of gestational hypertension, preeclampsia, chronic hypertension and preeclampsia superimposed on chronic hypertension were evaluated. RESULTS: maternal overweight was associated with an increased risk of HDP (OR 2.04, 95% CI: 1.43-2.91) and an increased risk of gestational hypertension (OR 1.68, 95% CI: 1.03-2.72) and chronic HT (OR: 3.70, 95% CI: 1.67-8.18). Maternal obesity was associated with an increase in some HDP (OR 3.54, 95% CI: 2.65-4.73), gestational hypertension (OR 2.94, 95% CI: 2-4.33), chronic HT (OR 8.31, 95% CI: 4.23-16.42) and preeclampsia (OR 2.08, 95% CI: 1.12-3.87) In the multivariate analysis (adjusted for parity and maternal age), overweight was associated with an increased risk of gestational hypertension (OR: 1.74, 95% CI: 1.06-2.85), chronic HT (OR 3.76, 95% CI: 1.69-8.35) and preeclampsia (OR 2.12, 95% CI: 1.005-4.48); obesity also increased the risk of gestational hypertension (OR 2.40, 95% CI: 1.39-4.13), chronic hypertension (OR 17.96, 95% CI: 8.78-36.76) and preeclampsia (OR 3, 69; 95% CI: 1.64-8.27). CONCLUSIONS: in conclusion, a significant and independent association was found between maternal overweight/obesity and HDP. The risk is significantly higher as the BMI increases (from overweight to obesity grade 3).

Introducción: la obesidad se ha asociado a un riesgo aumentado de padecer preeclampsia e hipertensión arterial gestacional.Objetivos: determinar si el sobrepeso y/o la obesidad materna al inicio de la gestación se asocian a un incremento del riesgo de padecer algún estado hipertensivo del embarazo en una población del sur de España.Métodos: estudio de cohortes retrospectivo. Se estudiaron 4.711 casos en los cuales se había registrado el IMC al inicio de la gestación. Grupos de estudio: a) sobrepeso; y b) obesidad al inicio de la gestación (desglosada por tipo de obesidad). Grupo control: IMC normal al inicio de la gestación. Se calculó el riesgo de presentar estados hipertensivos del embarazo (EHE) en general, hipertensión arterial (HTA) gestacional, preeclampsia, HTA crónica y preeclampsia sobreañadida a HTA crónica.Resultados: el sobrepeso materno se asoció a un incremento del riesgo de padecer algún EHE (OR 2,04, IC 95%: 1,43-2,91) y a un incremento del riesgo de padecer HTA gestacional (OR 1,68, IC 95%: 1,03-2,72) e HTA crónica (OR: 3,70, IC 95%: 1,67-8,18). La obesidad materna se asoció a un incremento de padecer algún EHE (OR 3,54, IC 95% 2,65-4,73), HTA gestacional (OR 2,94, IC 95% 2-4,33), HTA crónica (OR 8,31, IC 95%: 4,23-16,42) y preeclampsia (OR 2,08, IC 95%: 1,12-3,87). En el análisis multivariante (ajustado por la paridad y edad materna), el sobrepeso se asoció a un riesgo aumentado de padecer HTA gestacional (OR:1,74, IC 95%: 1,06-2,85), HTA crónica (OR 3,76, IC 95% 1,69-8,35) y preeclampsia (OR 2,12, IC 95% 1,005-4,48); la obesidad también incrementó el riesgo de HTA gestacional (OR 2,40, IC 95% 1,39-4,13), HTA crónica (OR 17,96, IC 95% 8,78-36,76) y preeclampsia (OR 3,69, IC 95% 1,64-8,27). Conclusiones: el sobrepeso y la obesidad aumentan el riesgo de padecer EHE. El riesgo es significativamente mayor conforme se incrementa el IMC (desde sobrepeso a obesidad grado 3).

Sobrepeso y obesidad como factores de riesgo de los estados hipertensivos del embarazo: estudio de cohortes retrospectivo / Overweight and obesity at risk factors for hypertensive states of pregnancy: a retrospective cohort study

Introducción: la obesidad se ha asociado a un riesgo aumentado de padecer preeclampsia e hipertensión arterial gestacional. Objetivos: determinar si el sobrepeso y/o la obesidad materna al inicio de la gestación se asocian a un incremento del riesgo de padecer algún estado hipertensivo del embarazo en una población del sur de España. Métodos: estudio de cohortes retrospectivo. Se estudiaron 4.711 casos en los cuales se había registrado el IMC al inicio de la gestación. Grupos de estudio: a) sobrepeso; y b) obesidad al inicio de la gestación (desglosada por tipo de obesidad). Grupo control: IMC normal al inicio de la gestación. Se calculó el riesgo de presentar estados hipertensivos del embarazo (EHE) en general, hipertensión arterial (HTA) gestacional, preeclampsia, HTA crónica y preeclampsia sobreañadida a HTA crónica. Resultados: el sobrepeso materno se asoció a un incremento del riesgo de padecer algún EHE (OR 2,04, IC 95%: 1,43-2,91) y a un incremento del riesgo de padecer HTA gestacional (OR 1,68, IC 95%: 1,03-2,72) e HTA crónica (OR: 3,70, IC 95%: 1,67-8,18). La obesidad materna se asoció a un incremento de padecer algún EHE (OR 3,54, IC 95% 2,65-4,73), HTA gestacional (OR 2,94, IC 95% 2-4,33), HTA crónica (OR 8,31, IC 95%: 4,23-16,42) y preeclampsia (OR 2,08, IC 95%: 1,12-3,87). En el análisis multivariante (ajustado por la paridad y edad materna), el sobrepeso se asoció a un riesgo aumentado de padecer HTA gestacional (OR:1,74, IC 95%: 1,06-2,85), HTA crónica (OR 3,76, IC 95% 1,69-8,35) y preeclampsia (OR 2,12, IC 95% 1,005-4,48); la obesidad también incrementó el riesgo de HTA gestacional (OR 2,40, IC 95% 1,39-4,13), HTA crónica (OR 17,96, IC 95% 8,78-36,76) y preeclampsia (OR 3,69, IC 95% 1,64-8,27). Conclusiones: el sobrepeso y la obesidad aumentan el riesgo de padecer EHE. El riesgo es significativamente mayor conforme se incrementa el IMC (desde sobrepeso a obesidad grado 3)

Introduction: obesity has been associated with an increased risk of preeclampsia and gestational hypertension. Objective: to determine if overweight and/or maternal obesity at the beginning of the pregnancy are associated with an increased risk of suffering from some hypertensive state of pregnancy in a population of southern Spain. Methods: retrospective cohort study. We studied 4,711 cases where the IMC had been registered at the beginning of pregnancy. Two study groups were included: overweight/obesity at the beginning of the gestation. Control group: pregnant women with normal BMI at the beginning of gestation. Global risk of hypertensive disorders of pregnancy (HDP) and the risk of gestational hypertension, preeclampsia, chronic hypertension and preeclampsia superimposed on chronic hypertension were evaluated. Results: maternal overweight was associated with an increased risk of HDP (OR 2.04, 95% CI: 1.43-2.91) and an increased risk of gestational hypertension (OR 1.68, 95% CI: 1.03-2.72) and chronic HT (OR: 3.70, 95% CI: 1.67-8.18). Maternal obesity was associated with an increase in some HDP (OR 3.54, 95% CI: 2.65-4.73), gestational hypertension (OR 2.94, 95% CI: 2-4.33), chronic HT (OR 8.31, 95% CI: 4.23-16.42) and preeclampsia (OR 2.08, 95% CI: 1.12-3.87) In the multivariate analysis (adjusted for parity and maternal age), overweight was associated with an increased risk of gestational hypertension (OR: 1.74, 95% CI: 1.06-2.85), chronic HT (OR 3.76, 95% CI: 1.69-8.35) and preeclampsia (OR 2.12, 95% CI: 1.005-4.48); obesity also increased the risk of gestational hypertension (OR 2.40, 95% CI: 1.39-4.13), chronic hypertension (OR 17.96, 95% CI: 8.78-36.76) and preeclampsia (OR 3, 69; 95% CI: 1.64-8.27). Conclusions: in conclusion, a signifi cant and independent association was found between maternal overweight/obesity and HDP. The risk is signifi cantly higher as the BMI increases (from overweight to obesity grade 3)

Indications of caesarean section in overweight and obese versus normal-weight pregnant women: a retrospective cohort study.

PURPOSE: The aim of this study was to test the hypothesis that indications of c-section in overweight or obese pregnant women are different from those with normal-weight. METHODS: Retrospective cohort study at University Hospital of Puerto Real (Cádiz-Spain). We compared frequency distribution of c-section indications in overweight and obese versus normal-weight. The risk of c-section by different indications was calculated as relative risk. RESULTS: A total of 4685 births were included in the study. There are significant differences in the frequency distribution of caesarean indications among normal weight and overweight or obese women. In overweight, we found an increased risk of c-section due to previous c-section (RR: 1.73; confidence interval [CI] 95% 1.24-2.42), obstructed/non-progressive labour (RR: 1.34; CI 95% 1.03-1.75), failed induction of labour (RR: 2.38; CI 95% 1.30-4.34) and foetal distress (RR: 1.73; CI 95% 1.21-2.49). This risk was even higher in obese women: previous c-section (RR: 3.25; CI 95% 2.24-4.71), obstructed/non-progressive labour (RR: 2; CI 95% 1.45-2.77), failed induction (RR: 2.52; CI 95% 1.15-5.51) and foetal distress (RR: 2.35; CI 95% 1.51-3.65). CONCLUSIONS: The risk of caesarean section due to previous caesarean section, obstructed/non-progressive labour, failed induction of labour or foetal distress is greater in overweight and obese than in normal-weight. This increase in risk also increases progressively as maternal BMI increases.

"Hypothyroidism screening during first trimester of pregnancy".

BACKGROUND: Subclinical hypothyroidism is defined as an elevated thyroid-stimulating hormone level with a normal thyroxin level without signs or symptoms of hypothyroidism. Although it is well accepted that overt hypothyroidism has a deleterious impact on pregnancy, recent studies indicate that subclinical hypothyroidism may affect maternal and fetal health. Studies suggest an association between miscarriage and preterm delivery in euthyroid women positive for anti-peroxidase antibodies and/or anti-thyroglobulin antibodies. A proposal of a new set-point to diagnose SCH was recently published. The aim of this research was to determine the optimal thyroid-stimulating hormone cut-off point to screen for subclinical hypothyroidism in the first trimester of gestation in a population of our clinical area and to determine the diagnostic value of this screening test for detecting anti-thyroid peroxidase antibodies. METHODS: This cross-sectional study determines the cutoff point for SCH screening and evaluates its usefulness to detect TPO Ab using the Receiver Operating Characteristics (ROC) curve. Prevalence of SCH was calculated using as cut-off 2.5 mIU/L, 4 mIU/L, and our TSH 97.5th percentile. The ability to detect positive anti-thyroglobulin antibodies (TG Ab) and anti-thyroid peroxidase antibodies (TPO Ab) in patients with levels of TSH >97.5th percentile was determined by ROC curves. RESULTS: The mean, range and standard deviation of TSH was 2.15 ± 1.34 mIU/L (range 0.03-8.82); FT4 was 1.18 ± 0.13 ng/dL (range 0.94-1.3); TG Ab was 89.87 ± 413.56 IU/mL (range 0.10-4000); and TPO Ab was 21.61 ± 46.27 IU/mL(range 0.10-412.4). The ROC. analysis of the ability of the TSH level to predict the presence of positive TPO Ab found an AUC of 0.563. CONCLUSION: In our population, the TSH cutoff value for gestational SCH screening is 4.7 mIU/L. Using the SEGO recommended 2.5 mIU/L TSH cut-off point, the prevalence of SCH is 37%. Applying the ATA 2017 recommended cutoff point of 4 mIU/L, the prevalence of SCH is 9.6%. Finally, when the cut-off of 4.7 mIU/L (our 97.5th centile) was used, the SCH prevalence is 5%. TSH levels in the first trimester of pregnancy are not useful to detect TPO Ab.

Maternal underweight and perinatal outcomes: a restrospective cohort study / Infrapeso materno y resultados perinatales: estudio de cohortes retrospectivo.

Introduction: Some studies have linked maternal underweight with adverse perinatal outcomes such as spontaneous abortion, abruptio placentae, small for gestational age newborn, intrauterine growth retardation and preterm birth. Objective: To determine the influence of maternal underweight in the onset of labor, route of delivery, birth weight, Apgar score and preterm birth. Methods: Retrospective cohort study. We included pregnant women from the Hospital Universitario de Puerto Real. Period of study: 2002-2011. Study group: underweight at the beginning of gestation (BMI < 18.5 kg/m2). Control group: pregnant women with normal body mass index (BMI) at the beginning of gestation (18.5-24.9 kg/m2). The risk (OR) of induction of labor, cesarean section, small for gestational age newborn, macrosomia, 5' Apgar score < 7, and preterm birth was calculated. Results: The prevalence of underweight was 2.5% versus 58.9% of pregnant women who had a normal BMI. We found no significant differences in the rate of induction of labor, fetal macrosomia, Apgar at 5' < 7 or preterm delivery. Maternal underweight was associated with a decreased risk of caesarean section (adjusted OR 0.45, 95% CI 0.22 to 0.89) and an increased risk of small for gestational age newborn (adjusted OR 1.74; 95% CI 1.05 to 2.90). Conclusions: Maternal underweight at the start of pregnancy is associated with a lower risk of caesarean section and a greater risk of small for gestational age newborns (birth weight < P10).

Introducción: algunos estudios han asociado el infrapeso materno con resultados perinatales adversos tales como aborto espontáneo, desprendimiento placentario, feto pequeño para edad gestacional, crecimiento intrauterino retardado y parto pretérmino. Objetivos: determinar si el infrapeso materno al inicio de la gestación influye sobre la forma de inicio y vía del parto, peso al nacer, índice de Apgar al minuto 5 y edad gestacional en el momento del parto. Métodos: estudio de cohortes retrospectivo en gestantes adscritas al Hospital Universitario de Puerto Real. Periodo de estudio: 2002-2011. Grupo de estudio: infrapeso al inicio de la gestación (índice de masa corporal [IMC] < 18,5); grupo control: IMC normal al inicio de la gestación (18,5-24,9). Analizamos el riesgo (OR) de inducción de parto, cesárea, bajo peso al nacer, macrosomía, Apgar a los 5' < 7 y parto pretérmino. Resultados: la prevalencia de infrapeso fue del 2,5% frente al 58,9% de gestantes que presentaron un IMC normal. No encontramos diferencias significativas en la tasa de inducción de parto, macrosomía fetal, Apgar a los 5' < 7 ni parto pretérmino. El infrapeso materno se asoció a una disminución en el riesgo de cesárea (OR ajustada 0,45; IC 95% 0,22-0,89) y a un riesgo aumentado de presentar recién nacido pequeño para su edad gestacional (OR ajustada 1,74; IC 95% 1,05-2,90). Conclusiones: el infrapeso materno al inicio de la gestación se asocia a una menor probabilidad de que el parto finalice mediante la realización de una cesárea y a un mayor riesgo de que el recién nacido presente un peso al nacer por debajo del percentil 10.

Infrapeso materno y resultados perinatales: estudio de cohortes retrospectivo / Maternal underweight and perinatal outcomes: a restrospective cohort study

Introducción: algunos estudios han asociado el infrapeso materno con resultados perinatales adversos tales como aborto espontáneo, desprendimiento placentario, feto pequeño para edad gestacional, crecimiento intrauterino retardado y parto pretérmino. Objetivos: determinar si el infrapeso materno al inicio de la gestación influye sobre la forma de inicio y vía del parto, peso al nacer, índice de Apgar al minuto 5 y edad gestacional en el momento del parto. Métodos: estudio de cohortes retrospectivo en gestantes adscritas al Hospital Universitario de Puerto Real. Periodo de estudio: 2002-2011. Grupo de estudio: infrapeso al inicio de la gestación (índice de masa corporal [IMC] < 18,5); grupo control: IMC normal al inicio de la gestación (18,5-24,9). Analizamos el riesgo (OR) de inducción de parto, cesárea, bajo peso al nacer, macrosomía, Apgar a los 5’ < 7 y parto pretérmino. Resultados: la prevalencia de infrapeso fue del 2,5% frente al 58,9% de gestantes que presentaron un IMC normal. No encontramos diferencias significativas en la tasa de inducción de parto, macrosomía fetal, Apgar a los 5’ < 7 ni parto pretérmino. El infrapeso materno se asoció a una disminución en el riesgo de cesárea (OR ajustada 0,45; IC 95% 0,22-0,89) y a un riesgo aumentado de presentar recién nacido pequeño para su edad gestacional (OR ajustada 1,74; IC 95% 1,05-2,90). Conclusiones: el infrapeso materno al inicio de la gestación se asocia a una menor probabilidad de que el parto finalice mediante la realización de una cesárea y a un mayor riesgo de que el recién nacido presente un peso al nacer por debajo del percentil 10 (AU)

Introduction: Some studies have linked maternal underweight with adverse perinatal outcomes such as spontaneous abortion, abruptio placentae, small for gestational age newborn, intrauterine growth retardation and preterm birth. Objective: To determine the influence of maternal underweight in the onset of labor, route of delivery, birth weight, Apgar score and preterm birth. Methods: Retrospective cohort study. We included pregnant women from the Hospital Universitario de Puerto Real. Period of study: 2002-2011. Study group: underweight at the beginning of gestation (BMI < 18.5 kg/m2). Control group: pregnant women with normal body mass index (BMI) at the beginning of gestation (18.5-24.9 kg/m2). The risk (OR) of induction of labor, cesarean section, small for gestational age newborn, macrosomia, 5’ Apgar score < 7, and preterm birth was calculated. Results: The prevalence of underweight was 2.5% versus 58.9% of pregnant women who had a normal BMI. We found no significant differences in the rate of induction of labor, fetal macrosomia, Apgar at 5’ < 7 or preterm delivery. Maternal underweight was associated with a decreased risk of caesarean section (adjusted OR 0.45, 95% CI 0.22 to 0.89) and an increased risk of small for gestational age newborn (adjusted OR 1.74; 95% CI 1.05 to 2.90). Conclusions: Maternal underweight at the start of pregnancy is associated with a lower risk of caesarean section and a greater risk of small for gestational age newborns (birth weight < P10) (AU)

Birthweight in pregnant women with protein S deficiency treated with low-molecular-weight heparin: a retrospective cohort study.

OBJECTIVE: To determine the risk of small-for-gestational-age (SGA) and intrauterine growth retardation (IUGR) in pregnant women with protein S (PS) deficiency who received low-molecular-weight heparin (LMWH). METHODS: Retrospective cohort study of pregnant women seen from January 2002 to December 2011. The study cohort comprised a total of 328 patients with PS deficiency, who received prophylactic enoxaparin during pregnancy. The control cohort included 11 884 pregnant women without significant past medical history. The risk of SGA and IUGR was calculated as odds ratio. Multivariate regression analysis over the entire reference population was performed determining the risk of both SGA and IUGR by adjusting for maternal age, first delivery, maternal underweight status, pre-eclampsia, other treated thrombophilias or history of recurrent abortion. RESULTS: The SGA rates in the PS deficiency and control cohorts were 10.7% and 8.5%, respectively (p > 0.05). There was no increased risk of SGA (unadjusted OR = 1.28, 95% confidence interval [CI] 0.9-1.83; adjusted OR = 1.35, 95% CI 0.91-2.01). The IUGR rate was 2.7% in pregnant women with PS deficiency versus 4.1% in the control group (p > 0.05). Also, we did not find a significant risk of IUGR (OR = 0.66; 95% CI 0.34-1.28; adjusted OR = 0.843; 95% CI 0.42-1.70). CONCLUSIONS: In women with PS deficiency treated with LMWH, the risk of SGA and IUGR is similar to the one found in healthy pregnant women.

Sobrepeso y obesidad maternos como factores de riesgo independientes para que el parto finalice en cesárea.

Introducción: el sobrepeso y la obesidad se asocian a una mayor probabilidad de que el parto finalice en cesárea. Dado que dicho incremento del riesgo podría estar sesgado por variables de confusión como la diabetes o la hipertensión, en el presente trabajo pretendemos determinar si este riesgo persiste tras ser ajustado por numerosas variables de control.Objetivo: determinar si el sobrepeso y/o la obesidad son factores de riesgo independientes para que el parto finalice en cesárea.Métodos: estudio de cohortes retrospectivo. Se han incluido gestantes adscritas al Hospital Universitario de Puerto Real. Periodo de estudio: 2002-2011. Se incluyeron dos grupos de estudio: sobrepeso al inicio de la gestación (IMC entre 25 y 29,9) y obesidad al inicio de la gestación (IMC ≥ 30). Grupo ontrol: IMC al inicio de la gestación normal (entre 18,5 y 24,9). El riesgo de cesárea fue analizado mediante un estudio de regresión logística múltiple incluyendo como covariables: edad materna, parto inducido, diabetes gestacional, diabetes pregestacional, macrosomía, hipertensión arterial, nuliparidad, cesárea anterior, parto pretérmino y parto postérmino.Resultados: de los 18.243 partos registrados, el IMC al inicio de la gestación constaba en 4.711 casos (25,8%). El 26,1% presentaban sobrepeso, el 12,4% obesidad y el 58,9% IMC normal. Sin ajustar por variables control, se asociaron a un incremento del riesgo de cesárea: sobrepeso (OR 1,48; IC95% 1,27-1,73); obesidad grado 1 (OR 2,09; IC95% 1,66-2,64); obesidad grado 2 (OR 3,23; IC95% 2,31-4,53); obesidad grado 3 (OR 2,57; IC95% 1,56-4,22). El riesgo aumentado se mantuvo significativo en el análisis multivariante: sobrepeso (OR 1,51; IC95% 1,24-1,84); obesidad (OR 2,15; IC95% 1,67-2,76).Conclusiones: encontramos una asociación significativa e independiente entre el sobrepeso/obesidad maternos y la finalización del parto mediante cesárea incluso ajustando por numerosas variables de control como: edad materna, nuliparidad, cesárea anterior, hipertensión, diabetes, peso al nacer y edad gestacional al parto.

Sobrepeso y obesidad maternos como factores de riesgo independientes para que el parto finalice en cesárea / Maternal overweight and obesity as independent risk factors for cesarean delivery

Introducción: el sobrepeso y la obesidad se asocian a una mayor probabilidad de que el parto finalice en cesárea. Dado que dicho incremento del riesgo podría estar sesgado por variables de confusión como la diabetes o la hipertensión, en el presente trabajo pretendemos determinar si este riesgo persiste tras ser ajustado por numerosas variables de control. Objetivo: determinar si el sobrepeso y/o la obesidad son factores de riesgo independientes para que el parto finalice en cesárea. Métodos: estudio de cohortes retrospectivo. Se han incluido gestantes adscritas al Hospital Universitario de Puerto Real. Periodo de estudio: 2002-2011. Se incluyeron dos grupos de estudio: sobrepeso al inicio de la gestación (IMC entre 25 y 29,9) y obesidad al inicio de la gestación (IMC ≥ 30). Grupo control: IMC al inicio de la gestación normal (entre 18,5 y 24,9). El riesgo de cesárea fue analizado mediante un estudio de regresión logística múltiple incluyendo como covariables: edad materna, parto inducido, diabetes gestacional, diabetes pregestacional, macrosomía, hipertensión arterial, nuliparidad, cesárea anterior, parto pretérmino y parto postérmino. Resultados: de los 18.243 partos registrados, el IMC al inicio de la gestación constaba en 4.711 casos (25,8%). El 26,1% presentaban sobrepeso, el 12,4% obesidad y el 58,9% IMC normal. Sin ajustar por variables control, se asociaron a un incremento del riesgo de cesárea: sobrepeso (OR 1,48; IC95% 1,27-1,73); obesidad grado 1 (OR 2,09; IC95% 1,66-2,64); obesidad grado 2 (OR 3,23; IC95% 2,31-4,53); obesidad grado 3 (OR 2,57; IC95% 1,56-4,22). El riesgo aumentado se mantuvo significativo en el análisis multivariante: sobrepeso (OR 1,51; IC95% 1,24-1,84); obesidad (OR 2,15; IC95% 1,67-2,76). Conclusiones: encontramos una asociación significativa e independiente entre el sobrepeso/obesidad maternos y la finalización del parto mediante cesárea incluso ajustando por numerosas variables de control como: edad materna, nuliparidad, cesárea anterior, hipertensión, diabetes, peso al nacer y edad gestacional al parto (AU)

Introduction: Overweight and obesity both are associated with an increased risk of cesarean section. Since this increased risk could be biased by confounding variables such as diabetes or hypertension, in this study we aim to determine whether this risk persists after adjusting for numerous control variables. Objective: To determine if maternal overweight and/or obesity are independent risk factors to cesarean section. Methods: Retrospective cohort study. We included pregnant women from the University Hospital of Puerto Real. Period of study: 2002-2011. Two study groups were included: overweight at the beginning of the gestation (BMI between 25 and 29.9 kg/m2) and obesity at the beginning of the gestation (BMI ≥ 30 kg/m2). Control group: pregnant women with normal BMI at the beginning of the gestation (Between 18.5 and 24.9 kg/m2). Multiple logistic regression analysis was conducted in order to evaluate the risk of caesarean. The variables included in the model were maternal age, induced labor, diabetes (gestational and pregestational), macrosomia, arterial hypertension, nulliparous, previous caesarean section, preterm birth and post-term childbirth. Results: Initial BMI was registered in 4,711 cases (25.8%) of a total of 18,243 births. Of these, 26.1% were overweight; 12.4% obesity and 58.9% normal BMI. Without adjusting by control variables, both overweight and obesity are associated to an increase in the risk of caesarean section: overweight (OR 1.48; CI95% 1.27-1.73); type 1 obesity (OR 2.09; CI95% 1.66-2.64); type 2 obesity (OR 3.23; CI95% 2.31-4.53); type 3 obesity (OR 2.57; IC95% 1.56-4.22). The risk remained significantly increased in the multivariate analysis: overweight (OR 1.51; CI95% 1.24-1.84); obesity (OR 2.15; IC95% 1.67-2.76). Conclusions: In conclusion, a significant and independent association was found between maternal overweight/obesity and cesarean section, even including numerous control variables such as age, nulliparous, previous cesarean section, hypertension, diabetes, birth weight and gestational age at birth (AU)