[Impact of bariatric surgery on maternal-fetal outcomes during pregnancy compared to non-operated obese women]. / Impacto de la cirugía bariátrica en los resultados materno-fetales de la gestación en comparación con mujeres con obesidad no operadas.

OBJECTIVE: the aim of our study was to assess the effect of bariatric surgery on obstetric outcomes. MATERIAL AND METHODS: a retrospective cohort study was conducted, including 54 pregnancies post-bariatric surgery and 219 pregnancies in non-operated obese women, from December 2018 to January 2023. Various maternal and obstetric characteristics were evaluated, ranging from baseline data to antepartum, intrapartum, postpartum, and neonatal outcomes. RESULTS: bariatric surgery showed a significant 69 % reduction in the risk of gestational diabetes (GDM) (p = 0.045) and a 63.1 % reduction in cesarean sections (p = 0.014), but also a notable increase in the risk of miscarriage (3.5 times more, p = 0.046) and intrauterine growth restriction (35 times more, p = 0.009). Bariatric surgery was associated with a significant prolongation of postpartum hospital stay (7.5 times more, p = 0.001) and a decrease in the average weight of the newborn (213.71 g, p = 0.006). CONCLUSION: pregnancy after bariatric surgery presents benefits, such as a reduced risk of gestational diabetes (GDM) and cesarean section, but also presents challenges, such as an increased risk of miscarriage and intrauterine growth restriction (IUGR). These results highlight the importance of specialized obstetric care to optimize maternal-fetal outcomes in pregnant women with a history of bariatric surgery.

Efecto de la ganancia ponderal gestacional en una cohorte de gestantes con obesidad operadas y no operadas de cirugía bariátrica / Effect of gest ational weight gain in a cohort of pregnancy women with obesity operated and not operated for bariatric surgery

Objetivo: determinar el efecto de la ganancia de peso gestacional y los resultados perinatales en mujeres con obesidad operadas y no operadas de cirugía bariátrica. Material y métodos: se realizó un estudio retrospectivo observacional de cohortes. La ganancia ponderal gestacional fue clasificada como insuficiente, adecuada o excesiva según las guías del Instituto de Medicina de Estados Unidos: 4,99-9,07 kg para índice de masa corporal (IMC) > 30 kg/m2. La ganancia ponderal se calculó con la diferencia entre el peso de la primera visita del primer trimestre y el peso en la visita del tercer trimestre. Los resultados examinados incluyeron variables anteparto (diabetes gestacional, hipertensión gestacional, preeclampsia, ruptura prematura de membranas, placenta previa, desprendimiento prematuro de placenta, retraso de crecimiento intrauterino, corioamnionitis, aborto espontáneo), intraparto (parto inducido, parto vaginal, ventosa, fórceps, cesárea, distocia de hombros), posparto (hemorragia posparto, necesidad de trasfusión posparto, anemia posparto, necesidad de asistencia a Urgencias, muerte materna, desgarro posparto, trombosis posparto) y neonatales (parto pretérmino, percentil peso > 90, percentil peso < 10, puntuación Apgar < 7, malformaciones). Mediante el paquete estadístico SPSS 22.0 se realizó un análisis estadístico de los datos. Resultados: se reclutaron 256 mujeres; 38 (14,58 %) eran gestantes poscirugía bariátrica y las 218 (85,15 %) restantes eran gestantes con obesidad no operadas. De las gestantes con obesidad no operadas, 119 (46,68 %) tenían obesidad grado 1 (IMC 30-34,9) y 99 (38,67 %) tenían obesidad grados 2 y 3 (IMC > 35). Se realizó un análisis global y por subgrupos. En el análisis global tuvieron ganancia insuficiente 78 (30,46 %), ganancia adecuada 117 (45,70 %) y excesiva 61 (23,82 %). En conjunto, la ganancia ponderal insuficiente se asoció con menor probabilidad de hipertensión arterial (HTA)...(AU)

Objective: to determine the effect of gestational weight gain and perinatal outcomes in obese women who underwent and did not undergo bariatric surgery. Material and methods: a retrospective observational cohort study was conducted. The gestational weight gain was classified as insufficient, adequate or excessive according to the guidelines of the United States Institute of Medicine: 4.99-9.07 kg for body mass index (BMI) > 30 kg/ m2. Weight gain was calculated as the difference between the weight at the first visit of the 1st trimester and the weight at the visit of the 3rd trimester. Outcomes examined included antepartum variables (gestational diabetes, gestational hypertension, preeclampsia, premature rupture of membranes, placenta previa, placental abruption, intrauterine growth retardation, chorioammionitis, spontaneous abortion), intrapartum variables (induced delivery, vaginal delivery, vacuum, forceps delivery, cesarean section, shoulder dystocia), postpartum variables (postpartum hemorrhage, need for postpartum transfusion, postpartum anemia, need for emergency care, maternal death, postpartum tear, postpartum thrombosis) and neonatal variables (preterm delivery, weight percentile > 90, weight percentile < 10, Apgar score < 7, malformations). Using the statistical package SPSS 22.0, a statistical analysis of the data was performed. Results: two hundred and fifty-six women were recruited; 38 (14.58 %) were pregnant after bariatric surgery and 218 (85.15 %) were pregnant women with obesity who had not been operated on. Of the pregnant women with obesity who had not been operated on, 119 (46.68 %) had grade1 obesity (BMI 30-34.9), and 99 (38.67 %) had grade 2 and 3 obesity (BMI > 35). A global and subgroup analysis was performed. In the overall analysis, 78 (30.46 %) had insufficient gain, 117 (45.70 %) had adequate gain, and 61 (23.82 %) excessive gain. Overall, insufficient weight gain was associated with a lower probability of...(AU)

[Effect of gestational weight gain in a cohort of pregnancy women with obesity operated and not operated for bariatric surgery]. / Efecto de la ganancia ponderal gestacional en una cohorte de gestantes con obesidad operadas y no operadas de cirugía bariátrica.

Introduction: Objective: to determine the effect of gestational weight gain and perinatal outcomes in obese women who underwent and did not undergo bariatric surgery. Material and methods: a retrospective observational cohort study was conducted. The gestational weight gain was classified as insufficient, adequate or excessive according to the guidelines of the United States Institute of Medicine: 4.99-9.07 kg for body mass index (BMI) > 30 kg/m2. Weight gain was calculated as the difference between the weight at the first visit of the 1st trimester and the weight at the visit of the 3rd trimester. Outcomes examined included antepartum variables (gestational diabetes, gestational hypertension, preeclampsia, premature rupture of membranes, placenta previa, placental abruption, intrauterine growth retardation, chorioammionitis, spontaneous abortion), intrapartum variables (induced delivery, vaginal delivery, vacuum, forceps delivery, cesarean section, shoulder dystocia), postpartum variables (postpartum hemorrhage, need for postpartum transfusion, postpartum anemia, need for emergency care, maternal death, postpartum tear, postpartum thrombosis) and neonatal variables (preterm delivery, weight percentile > 90, weight percentile < 10, Apgar score < 7, malformations). Using the statistical package SPSS 22.0, a statistical analysis of the data was performed. Results: two hundred and fifty-six women were recruited; 38 (14.58 %) were pregnant after bariatric surgery and 218 (85.15 %) were pregnant women with obesity who had not been operated on. Of the pregnant women with obesity who had not been operated on, 119 (46.68 %) had grade 1 obesity (BMI 30-34.9), and 99 (38.67 %) had grade 2 and 3 obesity (BMI > 35). A global and subgroup analysis was performed. In the overall analysis, 78 (30.46 %) had insufficient gain, 117 (45.70 %) had adequate gain, and 61 (23.82 %) excessive gain. Overall, insufficient weight gain was associated with a lower probability of gestational hypertension (p < 0.015) and forceps delivery (p < 0.000) and large for gestational age newborn (p < 0.000). On the other hand, insufficient weight gain was associated with a higher probability of intrauterine growth retardation (p 0.044), peripartum infection (0.022), preterm delivery (0.006), and delivery < 35 weeks (p 0.016). Excessive weight gain was associated with a higher probability of gestational hypertension (p 0.025), induced labor (p 0.009), forceps delivery (p 0.011) and large for gestational age newborn (p 0.006). Pregnancies after bariatric surgery had fewer overall complications compared to the other groups. Conclusions: insufficient and excessive weight gain worsens perinatal outcomes. Adequate weight gain does not increase complications and produces some benefits.

Introducción: Objetivo: determinar el efecto de la ganancia de peso gestacional y los resultados perinatales en mujeres con obesidad operadas y no operadas de cirugía bariátrica. Material y métodos: se realizó un estudio retrospectivo observacional de cohortes. La ganancia ponderal gestacional fue clasificada como insuficiente, adecuada o excesiva según las guías del Instituto de Medicina de Estados Unidos: 4,99-9,07 kg para índice de masa corporal (IMC) > 30 kg/m2. La ganancia ponderal se calculó con la diferencia entre el peso de la primera visita del primer trimestre y el peso en la visita del tercer trimestre. Los resultados examinados incluyeron variables anteparto (diabetes gestacional, hipertensión gestacional, preeclampsia, ruptura prematura de membranas, placenta previa, desprendimiento prematuro de placenta, retraso de crecimiento intrauterino, corioamnionitis, aborto espontáneo), intraparto (parto inducido, parto vaginal, ventosa, fórceps, cesárea, distocia de hombros), posparto (hemorragia posparto, necesidad de trasfusión posparto, anemia posparto, necesidad de asistencia a Urgencias, muerte materna, desgarro posparto, trombosis posparto) y neonatales (parto pretérmino, percentil peso > 90, percentil peso < 10, puntuación Apgar < 7, malformaciones). Mediante el paquete estadístico SPSS 22.0 se realizó un análisis estadístico de los datos. Resultados: se reclutaron 256 mujeres; 38 (14,58 %) eran gestantes poscirugía bariátrica y las 218 (85,15 %) restantes eran gestantes con obesidad no operadas. De las gestantes con obesidad no operadas, 119 (46,68 %) tenían obesidad grado 1 (IMC 30-34,9) y 99 (38,67 %) tenían obesidad grados 2 y 3 (IMC > 35). Se realizó un análisis global y por subgrupos. En el análisis global tuvieron ganancia insuficiente 78 (30,46 %), ganancia adecuada 117 (45,70 %) y excesiva 61 (23,82 %). En conjunto, la ganancia ponderal insuficiente se asoció con menor probabilidad de hipertensión arterial (HTA) gestacional (p 0,015) y parto con fórceps (p 0,000) y grande para edad gestacional (p 0,000). Por otro lado, la ganancia ponderal insuficiente se asoció a mayor probabilidad de retraso de crecimiento intrauterino (p 0,044), infección periparto (0,022), parto pretérmino (0,006) y parto < 35 semanas (p 0,016). La ganancia ponderal excesiva se asoció a mayor probabilidad de HTA gestacional (p 0,025), parto inducido (p 0,009), parto por fórceps (p 0,011) y grande para edad gestacional (p 0,006). Las gestaciones poscirugía bariátrica tuvieron menos complicaciones globales respecto al resto de grupos. Conclusiones: la ganancia ponderal insuficiente y excesiva empeora los resultados perinatales. La ganancia ponderal adecuada no aumenta las complicaciones y produce algunos beneficios.