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Perinatal problems of the obese mother and her infant
Insights
Obese pregnant women face risks like hypertension and gestational diabetes, but their infants often have higher birth weights. Despite challenges, intrauterine growth retardation is less common in these pregnancies.
Area of Science:
- Obstetrics and Gynecology
- Maternal-Fetal Medicine
- Neonatology
Background:
- Obesity in adults is linked to metabolic and cardiovascular issues.
- Obesity during pregnancy presents unique maternal and fetal complications.
- Specific risks include inadequate weight gain, hypertension, gestational diabetes, and macrosomia.
Purpose of the Study:
- To outline the health consequences of obesity in pregnant women.
- To detail the specific risks and outcomes for obese pregnancies.
- To discuss management strategies for obese pregnant women and their neonates.
Main Methods:
- Review of existing literature on obesity in pregnancy.
- Analysis of maternal and fetal complications associated with maternal obesity.
- Examination of neonatal outcomes in infants born to obese mothers.
Main Results:
- Obese pregnancies are associated with chronic hypertension, preeclampsia, gestational diabetes, and potential macrosomia.
- Maternal diabetes does not appear to amplify infant growth issues in obese mothers.
- Infants of obese mothers, despite maternal complications, tend to have higher birth weights and lower rates of intrauterine growth retardation.
- Neonates face increased risks of birth asphyxia, trauma, and transient neonatal hypoglycemia.
- Infants do not exhibit hyperinsulinism; alternate fuel mobilization may explain hypoglycemia.
Conclusions:
- Obesity in pregnancy necessitates careful management due to specific maternal and neonatal risks.
- While risks exist, outcomes like reduced intrauterine growth retardation are noted.
- Understanding neonatal metabolic responses is crucial for managing infants of obese mothers.
Abstract:
The health consequences of obesity in adults encompass both metabolic and cardiovascular complications. Pregnancy in obese women also has a particular set of problems. For the obese pregnant woman, these include weight gain less than 5.4 kg, chronic hypertension and superimposed preeclampsia, gestational diabetes, multiple gestation, and the potential for a macrosomic child. The combination of obesity and maternal diabetes does not appear to have an additive effect on the excessive growth of infants of obese mothers. Furthermore, despite inadequate weight gain, hypertension, and multiple gestation, infants of obese mothers are usually born with a greater birth weight than those of nonobese women. In addition, the incidence of intrauterine growth retardation is lower after an obese pregnancy. Neonates born to obese mothers have increased risk for birth asphyxia and birth trauma. Recently infants born to obese women were noted to have transient neonatal fasting asymptomatic hypoglycemia. Hyperinsulinism is not present in the infants of obese mothers; thus, alternate fuel mobilization (free fatty acids, glycerol, ketones) may respond to the hypoglycemic stimulus. Suggestions and rationale for the management of the pregnant obese woman, fetus, and newly born infant are discussed in the text.