Luis Javier Moreno Corral

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).

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

Abstract 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.

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).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).