Letter: increased risk of caesarean section for women with IBD-more questions than answers

Obstetric Considerations in Pregnant Women with Crohn's Disease

Crohn's disease affects many women of childbearing age. Fecundity rates are often lower than in the general population due to reduced fertility during active inflammation, effects of pelvic surgery or voluntary childlessness. Many women have concerns regarding the effects of pregnancy on their Crohn's, any potential effect of medication on the fetus, and passing on Crohn's disease to the offspring. International guidelines on reproduction for women with Crohn's disease provide evidence-based advice to patients and health care professionals. There is an increasing literature on the safety of advanced medication for Crohn's disease during pregnancy. This review article therefore focuses on obstetric considerations beyond medication safety. We provide information on fertility, factors affecting pregnancy and fetal outcomes, obstetric complications, factors influencing mode of delivery, management of intestinal stomas during pregnancy and general considerations around breast feeding.

Risk of Adverse Pregnancy Outcomes for Women with IBD in an Expert IBD Antenatal Clinic

Background: Patients with inflammatory bowel disease (IBD) are at increased risk of adverse outcomes from pregnancy. It is unclear whether IBD indications account for the higher rate of Caesarean section (CS) in IBD patients. Methods: A retrospective cohort study of 179 IBD patients cared for in a dedicated combined IBD antenatal clinic and 31,528 non-IBD patients was performed. The outcomes were method of delivery, preterm birth, birthweight, admission to neonatal intensive care unit (NICU), and stillbirth. We analysed the associations between disease activity, medication with method of delivery, and neonatal outcomes. Results: Delivery by CS was more common in IBD patients (RR 1.45, CI 1.16−1.81, p = 0.0021); emergency CS delivery was equally likely (RR 1.26, CI 0.78−2.07, p = 0.3). Forty percent of elective CS were performed for IBD indications. Stillbirth was five-fold higher in IBD patients (RR 5.14, CI 1.92−13.75, p < 0.001). Preterm delivery, low birthweight, and admission to NICU were not more common in patients with IBD, and IBD medications did not increase these risks. Active disease during pregnancy was not associated with adverse outcomes. Conclusions: Delivery by CS was more frequent in the IBD cohort, and most elective CSs were obstetrically indicated. A dedicated IBD antenatal clinic providing closer monitoring and early detection of potential issues may help improve outcomes.

Perineal Outcomes After Delivery in 179 Mothers with Inflammatory Bowel Disease Compared to 31 258 Controls: A Single-Centre Cohort Study

BACKGROUND

Women with inflammatory bowel disease [IBD] have an increased risk for caesarean section [CS], but perineal obstetric outcomes, which may have significant consequences for women with IBD, have not been previously studied.

METHOD

Maternal outcomes in singleton pregnancies of IBD and non-IBD patients [2014-2018] in a single centre were studied.

RESULTS

In 31 528 non-IBD and 179 IBD patients delivery by CS was more likely in IBD patients (p = 0.0021, relative risk [RR] 1.45, confidence interval [CI] 1.16-1.81). Elective CS in IBD patients occurred in 40% for IBD indications, all in accordance with current international guidelines. Perineal trauma, including tears involving the anal sphincter, were equally uncommon in IBD [2.23%] and non-IBD patients [3.40%; p = 0.35, RR 0.64, CI 0.24-1.68]. Of the four IBD patients with clinically significant tears, none had pelvic floor dysfunction or incontinence at follow-up in a specialist postnatal perineal trauma clinic. One IBD patient who had a clinically non-significant second-degree perineal tear reported incontinence a year after giving birth. Previous perianal disease was not associated with significant perineal trauma.

CONCLUSION

The low rate of perineal trauma is reassuring for promotion of vaginal delivery in most IBD patients. In those who experienced tears involving the anal sphincter no continence issues occurred. Women with IBD having a greater incidence of delivery by CS was only partially explained by IBD indications.