Contraceptive use among women with a history of bariatric surgery: a systematic review

Preparing for and managing a pregnancy after bariatric surgery

The number of bariatric surgeries performed in the United States has increased exponentially. Given that most patients are female and of reproductive age, it is important for clinicians who manage women's health issues to be aware of the surgery, its long-term goals, and the potential effect on future pregnancies. Most pregnancies after bariatric surgery have successful outcomes with decreased occurrences of gestational diabetes and hypertension and lower birth weight compared with control patients. Following nutritional guidelines and supplementation in the event of deficiencies are critical in the provision of prenatal care to this unique population. Other important issues include a multidisciplinary team management, a different approach to screening for gestational diabetes, careful evaluation of any gastrointestinal complaints, and appropriate counseling for gravidas who still remain obese during pregnancy. Further research should investigate the long-term maternal outcomes in pregnancies after bariatric surgery as well as the effect on the offspring.

Impact of prior bariatric surgery on maternal and fetal outcomes among obese and non-obese mothers

PURPOSE

To assess the association between bariatric surgery and pregnancy-related outcomes among obese and non-obese women in the state of Florida.

METHODS

We conducted a population-based, retrospective cohort analysis using vital records and hospital discharge data in Florida during 2004-2007. Women were categorized based on prior bariatric surgery and pre-pregnancy obesity status. Maternal complications (i.e., anemia, pre-eclampsia, gestational diabetes, chronic hypertension, endocrine disorders, cesarean section, prolonged hospital stay) and fetal morbidities [macrosomia, preterm birth, small for gestational age (SGA)] were the outcomes of interest. Adjusted odds ratios (AOR) and 95% confidence intervals (CI) were computed.

RESULTS

Mothers with a prior history of bariatric surgery, regardless of obesity status, were more likely to have anemia, chronic hypertension, endocrine disorders, and SGA infants. Classification based on prior history of bariatric surgery and obesity status showed that non-obese mothers with prior bariatric surgery were more likely to have anemia, chronic hypertension, endocrine disorders, and SGA infants, whereas obese mothers without prior bariatric surgery were at greater risk of having gestational diabetes, chronic hypertension, macrosomic infants (AOR = 1.69, 95% CI = 1.65-1.73), and prolonged hospital stay as compared to non-obese mother without prior bariatric surgery.

CONCLUSIONS

Although prior bariatric surgery is associated with multiple negative maternal and fetal outcomes, it is protective against infant macrosomia in obese mothers. Our findings support the need for preconception/interconception services tailored for former bariatric surgery patients to improve maternal and feto-infant health outcomes.

United States medical eligibility criteria for contraceptive use 2010: a review of changes

In the late 1990s, the World Health Organization (WHO) created the Medical Eligibility Criteria for Contraceptive Use (MEC), which provide evidence-based recommendations for safe and effective contraception in women with medical problems. The WHO MEC incorporate the best available evidence, are periodically updated, and are designed to be modified for specific populations. The US Centers for Disease Control and Prevention published US MEC in 2010. Changes to WHO guidelines for use in the US population include the following areas: breastfeeding, intrauterine device use, valvular heart disease, ovarian cancer, uterine fibroids, and venous thromboembolism. Medical conditions not covered by WHO recommendations but added to the US MEC include contraceptive guidance for women with inflammatory bowel disease, history of bariatric surgery, rheumatoid arthritis, endometrial hyperplasia, history of peripartum cardiomyopathy, and history of solid organ transplant. This article reviews the changes and additions to WHO MEC found in the US MEC.

The future of contraception: the future leaders of family planning

The University of California, San Francisco, initiated a Fellowship in Family Planning in 1991, and since then 23 academic teaching hospitals across the country have adopted the 2 year program model for training obstetrician-gynecologist physicians in a subspecialty focused on contraception and abortion. The program follows a curriculum that includes clinical practice, research, and international work. This review includes information about the Fellowship in Family Planning as well as research opportunities available from academia, independent foundations, and government related sources.

BARIATRIC SURGERY IN PREGNANCY: BENEFITS, RISKS AND OBSTETRIC MANAGEMENT

Obesity is a growing problem in obstetric practice. A recent study from Glasgow (UK) showed that 50% of women of childbearing age are either overweight (Body Mass Index [BMI] = 24.9–29.9kg/m2) or obese with 18% starting pregnancy as obese. Obesity prevalence has doubled over a decade from the early 1990’s. In the US it is estimated that 30% of reproductive-age women have a BMI greater than 30 kg/m while 7% have a BMI > 40 kg/m2. A recent report from the UK found that 5% of women had a BMI >35 kg/m2, 2% > 40 kg/m2 and 0.2% >50 kg/m2 with an association not only with social deprivation, but also with a higher prevalence of pre-existing medical disorders such as diabetes and hypertension and medical complications of pregnancy such as preeclampsia. Obesity was also associated with increased rates of macrosomia, operative delivery and postpartum haemorrhage. These data highlight the fact that obesity is an increasing health concern particularly in young women of childbearing age. Obesity will expose them to significant pregnancy complications ranging from miscarriage and fetal abnormality through to operative delivery and thromboembolism. There are also challenges for the delivery of maternity care to meet the needs of these women. As obesity is associated with significant pregnancy complications it is important that women enter pregnancy with an optimum body weight. Many complications, such as fetal abnormality occur in the first trimester and so pre-pregnancy weight reduction is preferred. Further, there is insufficient evidence to recommend specific dietary and/or physical activity interventions to reduce weight or moderate weight gain during pregnancy.