Maternal and perinatal outcomes after bariatric surgery: a case control study.
OBJECTIVE
To compare the results of maternal and perinatal pregnancies of obese women after bariatric surgery.


METHODS
A retrospective cross-sectional study was carried out on 63 women who had undergone bariatric surgery and 73 obese women (control). Demographic data, the characteristics of the bariatric surgery, and the maternal and perinatal results were evaluated. The Student's t-test and chi-square test (χ2) were used to compare the groups. The gestational complications of the prevalence of gestational diabetes mellitus, anemia, and preeclampsia were analyzed using simple and multivariate logistical regression and odd ratios (OD) with their respective confidence intervals (CI) of 95%.


RESULTS
The average body mass index (BMI) at the 1st prenatal appointment of the control group was 34.6±3.3 kg/m2 and that of the post-surgical group was 26.5±4.2 kg/m2. The Roux-en-Y Gastric Bypass was used in 100% of cases; no complications were observed during or after the surgeries. The average weight loss in patients with a prior bariatric surgery was statistically significant (P=0.000). The average weight at birth of the control group was significantly higher than in the post-bariatric surgery group (P=0.017). The women who had a prior bariatric surgery had a higher chance of anemia (OR=3.5; CI 95%: 1.5-8.3) and a reduced chance of macrosomia (OR=0.2; CI 95%:0.1-0.5), and prematurity (OR=0.3; CI 95%:0.1-0.7).


CONCLUSIONS
Those women who had been submitted to bariatric surgery presented better maternal and perinatal results when compared to obese women.
Laura Arrais Sydrião
LA
de Alencar Costa
Edward
E
Araujo Júnior
Francisco Edson
FE
de Lucena Feitosa
Andréa Cavalcante
AC
Dos Santos
Luiz Gonzaga
LG
Moura Júnior
Francisco Herlânio
FH
Costa Carvalho
D050110:Bariatric Surgery / Q000009:adverse effects; D001724:Birth Weight; D016022:Case-Control Studies; D003430:Cross-Sectional Studies; D005260:Female; D015390:Gastric Bypass / Q000009:adverse effects; D006801:Humans; D007231:Infant, Newborn; D008875:Middle Aged; D009767:Obesity, Morbid / Q000150:complications* / Q000473:pathology / Q000601:surgery; D011247:Pregnancy; D011248:Pregnancy Complications / Q000473:pathology; D011256:Pregnancy Outcome; D012189:Retrospective Studies; D061217:Weight Reduction Programs