'Obese women risk complex pregnancies'

Overweight and obese women suffer more pregnancy complications and their babies have more medical problems at birth, than those with a normal weight, according to a paper published by the the Public Affairs Committee of the Teratology Society.

india Updated: Feb 04, 2006 22:14 IST

Overweight and obese women suffer more pregnancy complications and their babies have more medical problems at birth, than those with a normal weight, according to a paper published by the the Public Affairs Committee of the Teratology Society.

Obese women face increased risk of problems during pregnancy, including hpertension, gestational diabetes and thromboembolic events, and are more likely to need a cesarean section.

In addition, the babes of obese mothers are more likely to be admitted to neonatal intensive care units. They also have a higher incidence of neural tube defects.

The literature suggests that compared to normal weight women, women whose body mass index (BMI) is greater than or equal to 30 have approximately double the risk of having an affected child.The increased risk cannot be explained by folic acid intake, or by maternal diabetes.

The relationship between obesity and other birth defects remains unclear, according to the paper, because limited data is available, though some studies suggest a correlation.

"The Public Affairs Committee views obesity as a pregnancy risk factor and supports the public health initiatives identified by the FDA and the research initiatives identified by the NIH," the Committee writes. The national agencies are addressing the problem of obesity and acknowledging pregnancy as an important subject of further study.

The paper suggests that weight reduction efforts should be made well before conception is attempted, and dieters should avoid pregnancy. "Adequate nutrition is important for pregnant women and women planning pregnancy," the paper says. The committee recommends that clinicians counsel pregnant women about appropriate caloric intake and exercise.

While weight reduction surgery can improve the health and also the fertility of overweight women, the committee does not make a recommendation regarding surgery. They note that some recent reports have shown that women with gastric banding can have normal pregnancies and better pregnancy outcomes than obese women who do not have the surgery.

"Because some weight loss procedures can result in nutritional deficiencies, it appears reasonable to recommend that pregnancy be delayed until surgery-related weight loss has stabilized," writes the Committee.

Lastly, the paper recommends that all parents be educated about appropriate childhood nutrition, including the value of breastfeeding, which has been shown to have a protective effect against childhood obesity. "Prevention of childhood obesity is expected to be important in the prevention of obesity during the reproductive years," the paper concludes.

First Published: Feb 05, 2006 15:00 IST