Higher rate of smaller babies after bariatric surgery

The retrospective cohort study matched 70 patients who had undergone bariatric surgery with four controls per patient: two with a BMI within six points of their average pre-surgery BMI (mean 49.31) and two with a BMI within six points of their pre-pregnancy BMI (mean 33.66). 

Bariatric surgery patients showed a decreased rate of gestational diabetes (0% vs 9.3% obese, 16.4% morbidly obese)and postpartum haemorrhage.

However neonatal outcomes were not so positive. The incidence of preterm birth was higher in the bariatric surgery group and babies were more likely to be SGA (17.4% vs 5%).

Canberra obstetrician Associate Professor Stephen Robson from ANU Medical School said while bariatric surgery seems to reduce the risk of gestational diabetes “it is screened for and can be managed quite well, so this may not be as dramatic an outcome as hoped for”. 

“Importantly, having bariatric surgery did not seem to reduce

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