After Bariatric Surgery, Women Advised to Wait At Least Two Years to Conceive

After bariatric surgery there is a rapid weight loss that may impair an adequate weight gain during pregnancy and may also be associated with nutritional deficiencies

WeightControl.com:  What are the main findings?

Response: Therefore, we conducted a retrospective study in our centre to evaluate the impact of BSCI on the risk of SGA neonates. Time from bariatric surgery to conception was significantly lower in the pregnancies with SGA babies (23.1 months versus 64.7 months). In fact, 58.3% of the babies born to women who conceived in the first 24 months after surgery were SGA, compared to 11.5% of those born to women who conceived after 24 months. We found that the longer the BSCI, the lower was the risk ok having an SGA baby. For each additional month of BSCI, there was a 5% lower risk of having an SGA baby and a 4.2g increase in birth weight. The optimal time to wait until conception was found to be at least 24.5 months. Women with a BSCI of under 24.5 months were 15 times more likely to have an SGA baby than those who waited longer.

WeightControl.com: What should readers take away from your report?

Response: Bariatric surgery-to-conception interval has a significant impact on birth weight, with shorter intervals associated with a higher risk of having an SGA baby. After bariatric surgery there is a rapid weight loss that may impair an adequate weight gain during pregnancy and may also be associated with nutritional deficiencies. An interval of two years allows the stabilization of weight and nutritional status.

WeightControl.com: What recommendations do you have for future research as a result of this work?

Response: To consolidate this data, it would be useful to conduct prospective studies regarding different BSCI and their relation to pregnancy and neonatal outcomes. More data is still needed regarding neonatal outcomes of women after bariatric surgery, namely their association to maternal weight gain during pregnancy and nutritional deficiencies.

WeightControl.com: Is there anything else you would like to add?

Response: We recommend that women wait at least two years after bariatric surgery before trying to conceive, although it may be possible to adjust this on an individual basis. These women must be aware of the risks of early conception and require adequate counselling regarding safe and effective contraception.

Citation:

Research presented at the European Congress on Obesity (ECO) May 2022
From bariatric surgery to conception: how long should we wait to
optimize foetal weight?
Araújo, B.; Carreira, A.; Lavrador, M.; Vieira, I.; Barros, L.; Rodrigues, D.; Paiva, S.; Melo,M.; Paiva, I.
https://zoomforward22.org/

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