Decreased fertility rates in 9639 women diagnosed with inflammatory bowel disease: a United Kingdom population-based cohort study

Pregnancy in Patients with Inflammatory Bowel Disease: A Narrative Review

Background

The incidence of inflammatory bowel diseases (IBDs) peaks in the fertile age of both women and men. There is a significant lack of knowledge regarding disease-specific aspects of guiding IBD patients through conception, pregnancy, and delivery in clinical routine.

Summary

Patients with IBD often remain voluntarily childless, primarily due to a lack of knowledge. Fertility is generally unaffected in IBD patients, except in those with high disease activity or who have undergone specific abdominal surgeries that may lead to changes in the abdominal cavity, such as inflammatory or postoperative adhesions. Immunosuppressive and immunomodulatory medications are generally considered safe during pregnancy and should be continued to reduce the likelihood of relapses. If flares occur, close monitoring of the mother and the fetus is mandatory, and therapeutic options (conservative, interventional, surgical) have to be weighed thoroughly. Despite advances in treatment, IBD patients remain at increased risk of preterm labor, small-for-gestational-age newborns and are at risk of C-sections, although the current literature suggests vaginal delivery is possible for most patients. C-sections are recommended in patients with active perianal disease.

Key Messages

Patients with IBD wishing to conceive should receive comprehensive preconception counseling about pregnancy-specific aspects of IBD management from an interdisciplinary team of specialists, including IBD gastroenterologists, obstetricians, and colorectal surgeons.

Contraception, fertility and inflammatory bowel disease (IBD): a survey of the perspectives of patients, gastroenterologists and women's healthcare providers

OBJECTIVE

Despite guidelines indicating no contraindications for contraceptives in women with inflammatory bowel disease (IBD), this population shows increased voluntary childlessness and lower contraceptive use. Knowledge gaps among healthcare providers on IBD's impact on fertility and contraception may drive these trends. This survey assessed knowledge discrepancies among IBD patients, gastroenterologists (GEs), and women's healthcare providers (WHPs) regarding fertility and contraception.

METHODS

An anonymous survey was conducted between August and December 2023, targeting IBD patients of childbearing age, GEs and WHPs. The questionnaire was offered consecutively to all patients consulting or hospitalised in our department. Additionally, the survey link was shared with healthcare professionals during dedicated training sessions. It assessed awareness of IBD-related fertility and contraception impacts.

RESULTS

Two hundred twenty-two participants fulfilled the survey (100 patients, 50 GEs and 72 WHPs). Among patients (63% with Crohn's disease), 95% were on biologic or immunosuppressant therapy. Nearly half (47%) of women had not discussed fertility or contraception with their GE, and only 22% had done so on request. A majority (80% of women, 54% of GEs) were unsure if IBD affects contraception efficacy, and 50% of WHPs believed oral contraceptives to be less effective for IBD patients. Key concerns influencing patients' fertility decisions included the impact of IBD medication on pregnancy (51%), risk of passing IBD to offspring (47%) and potential flare-ups during pregnancy (39%).

CONCLUSION

Significant knowledge gaps on fertility and contraception in IBD persist among patients, GEs and WHPs.

Preconception indicators and associations with health outcomes reported in UK routine primary care data: a systematic review

BACKGROUND

Routine primary care data may be a valuable resource for preconception health research and to inform the provision of preconception care.

AIM

To review how primary care data could provide information on the prevalence of preconception indicators and examine associations with maternal and offspring health outcomes.

DESIGN AND SETTING

Systematic review of observational studies using UK routine primary care data.

METHOD

Literature searches were conducted in March 2023 using five databases to identify observational studies that used national primary care data from individuals aged 15-49 years. Preconception indicators were defined as medical, behavioural, and social factors that may impact future pregnancies; health outcomes included those that may occur during and after pregnancy.

RESULTS

From 5259 screened records, 42 articles were included. The prevalence of 37 preconception indicator measures was described for female patients, ranging from 0.01% for sickle cell disease to >20% for each of advanced maternal age, previous caesarean section (among those with a recorded pregnancy), overweight, obesity, smoking, depression, and anxiety (irrespective of pregnancy). Few studies reported indicators for male patients (n = 3) or associations with outcomes (n = 5). Most studies had a low risk of bias, but missing data may limit generalisability of the findings.

CONCLUSION

The findings demonstrated that routinely collected UK primary care data could be used to identify patients' preconception care needs. Linking primary care data with health outcomes collected in other datasets is underutilised, but could help to quantify how optimising preconception health and care could reduce adverse outcomes for mothers and children.

Pregnancy With a Stoma is Feasible, Though Associated With Manageable Complications

BACKGROUND

Inflammatory bowel disease (IBD) is often diagnosed in young adults, and therefore frequently coincides with pregnancy. Patients may require surgery that includes (temporary) stoma placement. Literature on the occurrence of stoma-complications during pregnancy and the effect on pregnancy outcomes is limited. To evaluate stoma- complications peri- and postpartum, a retrospective study was performed in women who were pregnant while having a stoma.

METHODS

This multicentre cohort and survey study included all pregnant patients with IBD and a stoma who delivered between 2016 and 2023 from 5 Dutch university hospitals. Stoma-complications and pregnancy outcomes were retrospectively collected from electronic patient files. A questionnaire assessed patient-reported complications and long-term stoma-related complaints.

RESULTS

In total, 50 patients were included (median age at conception 31.0 years; 55.2% Crohn's disease and 44.8% ulcerative colitis), comprising 67 pregnancies, 5 of which ended in pregnancy loss. Stoma complications occurred in 44 full-term pregnancies (71.0%), most commonly obstruction (35.5%) and decreased output (29.0%). Surgery was required in four pregnancies due to obstruction (n = 3) and prolapse (n = 2). In the first-year postpartum, 7 patients required surgery for stoma-complications. Amongst 29 women who completed the questionnaire, 10 (34.5%) reported unresolved complications 6 months postpartum. Cesarean sections were performed in 31 (50.0%) pregnancies. Adverse pregnancy outcomes included prematurity (n = 9, 14.5%), low birth weight (n = 9, 14.5%), and dysmaturity (n = 5, 8.1%).

CONCLUSIONS

Pregnancy with a stoma is feasible, though manageable complications often occur. Counseling before pregnancy and close monitoring of symptoms during pregnancy and postpartum are essential for women with IBD and a stoma.

Reasons for reduced reproduction after colectomy in women with ulcerative colitis

OBJECTIVES

Colectomy and subsequent bowel reconstruction in women with ulcerative colitis (UC) is associated with decreased fertility, this survey aims to investigate possible reasons for this.

MATERIAL AND METHODS

Women with UC aged 18-44 years at colectomy 2000-2020 were identified and data were retrieved from the Swedish inflammatory bowel disease register (SWIBREG). Additional information was obtained using a study-specific questionnaire.

RESULTS

The survey was completed by 214 (72.8%) out of 294 eligible women. Mean age at disease onset was 22.9 years (standard deviation 0.5). No reconstruction was made in 67 (31.3%) women, whereof 24 (35.8%) had a completion proctectomy. Reconstruction was performed with ileorectal anastomosis (IRA) in 66 (30.8%) women and ileal pouch anal anastomosis (IPAA) in 81 (37.9%). Included women had on average 1.67 children (95% confidence interval 1.53-1.81) at the end of follow-up. The desire to have children was negatively affected by disease onset (59.4%), colectomy (44.9%) and reconstruction (36.7%). Altogether, 39.4% estimated that they had fewer children and 9.5% restrained completely from having children because of the disease. Difficulties to conceive were reported by 36.5% including 18.9% who expressed that they could not conceive at all. Difficulties to conceive was more common after reconstruction with IPAA (Odds Ratio [OR] 5.54) than IRA (OR 2.57).

CONCLUSIONS

A majority of women with UC and colectomy expressed that the disease affected their desire to have children, more often limiting the number of children than completely refraining. For childless patients, difficulties to conceive was more common than voluntary childlessness.

Navigating Reproductive Care in Patients With Inflammatory Bowel Disease: A Comprehensive Review

Inflammatory bowel disease [IBD] is often diagnosed in patients during their reproductive years. It is crucial that both healthcare providers and patients are adequately informed to avoid misguided decisions regarding family planning. One of the most important aspects during conception and pregnancy is to maintain disease remission, as disease activity is associated with adverse pregnancy outcomes. Apart from methotrexate, most conventional drugs used in IBD are considered low risk during conception and pregnancy. For newer agents, evidence is still limited. If needed, surgery must not be postponed and should ideally be performed in specialized centres. In most patients, delivery should be vaginal except for patients with complex perianal disease, with an ileoanal pouch anastomosis, or if there is an obstetric contraindication. In children exposed to biological treatments during pregnancy, the risk of infections appears to be low, and psychomotor development is probably not affected. Regarding immunizations, the standard vaccination schedule for inactivated vaccines should be followed for children exposed to biologics in utero. In the case of live vaccines, such as rotavirus, decisions should be individualized and take into consideration the risk-benefit ratio, particularly in developing countries. In this review, we provide a comprehensive and updated overview of aspects related to fertility, pregnancy, breastfeeding, and the impact on the care of children born to mothers with IBD. Both the available evidence and areas of uncertainty are discussed, with the goal of assisting healthcare professionals caring for IBD patients during this important stage of their lives.

Factors associated with decreased ovarian reserve in Crohn's disease: A systematic review and meta-analysis

INTRODUCTION

It is still unclear whether Crohn's disease (CD) might be associated with diminished ovarian reserve (OvR) and factors influencing anti-Mullerian hormone (AMH) levels in CD are poorly known.

MATERIAL AND METHODS

We conducted a comprehensive literature search of multiple electronic databases from inception to June 2022 to identify all studies reporting AMH levels or factors associated with diminished OvR in patients with CD.

RESULTS

Of the 48 studies identified in our search, eight (including 418 patients with CD) were finally included. The mean difference (95% confidence interval [CI]) in the AMH level between pooled CD patients and controls was -0.56 (-1.14 to 0.03) (p = 0.06). A history of CD-related surgery was not associated with a lower OvR (odds ratio, OR [95% CI] 1.34, [0.66-2.7]; p = 0.4). While disease activity and perianal disease seems associated with a low OvR, disease location (L2 vs. L1, OR [95% CI] = 95% CI [0.47-7.4]; p = 0.4) and L3 vs. L1 (OR [95% CI] = 1.44 [0.67-3.12]; p = 0.3), CD medication, and disease behavior were not.

CONCLUSIONS

Our systematic review and meta-analysis did not identify a significantly low OvR in patients with CD. Contrary to CD-related surgery risk factor, active disease was associated lower AMH levels.

Inflammatory Bowel Disease and Reproductive Health: A Focus on Pregnancy Planning and Outcomes

Reproductive counseling is crucial for women's health, especially for those with inflammatory bowel disease (IBD), which often affects younger patients during their childbearing years. Patients with IBD need special considerations when planning for pregnancy. Preconception counseling is important as it helps patients make informed decisions about pregnancy and allows for optimal management of IBD before, during, and after pregnancy. In this review, we aim to provide guidance for managing and treating patients with IBD throughout the preconception, pregnancy, and postpartum period.

General review on pregnancy in inflammatory bowel disease

Given the age of maximum incidence of inflammatory bowel disease, aspects such as fertility and pregnancy are especially relevant in the management of these patients. This review article aims to provide a summarized description of the basic concepts that the gastroenterologist should know when assessing an IBD patient with procreative desires and/or who is pregnant. The review has been carried out selecting the most recent and relevant articles on these topics in order to offer updated information on the latest treatments available.

Impact of inflammatory bowel disease on women's reproductive life: a questionnaire-based study

Background

Inflammatory bowel diseases (IBDs) have a peak incidence between the second and fourth decades of life and can affect women's reproductive life.

Objectives

Our study aimed to assess the impact of IBD on the reproductive life of female patients with this condition.

Design

Cross-sectional study.

Methods

Women with IBD followed at our IBD Unit and a group of healthy controls were enrolled. Data on reproductive life were collected using a dedicated questionnaire.

Results

The study included 457 women, of whom 228 had IBD, and 229 age-matched healthy controls. No differences were found in the use of contraceptives, infertility, and endometriosis. The risk of spontaneous and voluntary abortions was significantly higher in IBD patients than in healthy controls [odds ratio (OR) 2 and 3.62, respectively]. The risk of obstetrical complications in the IBD population was more than six times higher in patients who experienced disease reactivations during pregnancy than in those with persistent remission [OR 6.9, 95% confidence interval (CI) 1.51-31.28]. Finally, we found that the chances of breastfeeding were 66% lower in patients with IBD than in controls (OR 0.44, 95% CI 0.22-0.91).

Conclusion

Our study underlines the negative impact of IBD on women's reproductive life, supporting the need for proactive preconception counseling.

Histologic Remission in Inflammatory Bowel Disease and Female Fertility: A Nationwide Study

BACKGROUND & AIMS

Inflammatory bowel disease (IBD) is linked to reduced female fertility, but it is unclear how fertility rates vary by histologic disease activity.

METHODS

Nationwide IBD cohort of Swedish women aged 15 to 44 years. We examined fertility rates during periods with vs without histologic inflammation (n = 21,046; follow-up, 1990-2016) and during periods with vs without clinical activity (IBD-related hospitalization, surgery, or treatment escalation) (n = 24,995; follow-up, 2006-2020). Accounting for sociodemographics and comorbidities, we used Poisson regression to estimate adjusted fertility rate ratios (aFRRs) for live births conceived during 12-month periods of histologic inflammation (vs histologic remission) and 3-month periods of clinically active IBD (vs quiescent IBD).

RESULTS

During periods with vs without histologic inflammation, there were 6.35 (95% confidence interval [CI], 5.98-6.73) and 7.09 (95% CI, 6.48-7.70) live births conceived per 100 person-years of follow-up, respectively, or 1 fewer child per 14 women with 10 years of histologic inflammation (aFRR, 0.90; 95% CI, 0.81-1.00). In women with histologic inflammation, fertility was similarly reduced in ulcerative colitis (UC) (aFRR, 0.89 [95% CI, 0.78-1.02]) and Crohn's disease (CD) (aFRR, 0.86 [95% CI, 0.72-1.04]). Clinical IBD activity was associated with an aFRR of 0.76 (95% CI, 0.72-0.79) or 1 fewer child per 6 women with 10 years of clinical activity. Fertility was reduced in clinically active UC (aFRR, 0.75 [95% CI, 0.70-0.81]) and CD (aFRR, 0.76 [95% CI, 0.70-0.82]). Finally, among women with clinically quiescent IBD, histologic inflammation (vs histologic remission) was associated with reduced fertility (aFRR, 0.85 [95% CI, 0.73-0.98]).

CONCLUSIONS

An association between histologic and clinical activity and reduced female fertility in CD and UC was found. Notably, histologic inflammation was also linked to reduced fertility in women with clinically quiescent IBD.

Elevated cord levels of ustekinumab following its use in the treatment of Crohn's disease in pregnancy

Ustekinumab (USK) was used in the treatment of two pregnant patients with Crohn's disease. It was given in the third trimester and restarted postnatally for both women. One woman remained on USK and in remission throughout pregnancy. The second woman, took a treatment break, flared, and then had remission induced with reintroduction of USK. Both women delivered healthy term infants. The interval from last dose to birth was 11 and 8 weeks respectively. Interestingly, USK levels in cord blood was observed in higher concentrations than in the maternal serum taken in third trimester. While no adverse effect in infants has been observed, clinicians should remain aware of fetal transfer when using USK in pregnancy. An evaluation of risk and benefit may favour continuing USK in pregnancy in patients with refractory disease.

[Pregnancy and breastfeeding in Crohn's disease]

Inflammatory bowel disease (IBD) is often diagnosed in young adults. Starting a family is an important step in life and can be further complicated by Crohn's disease. Therefore, family planning should be discussed with every patient early in the disease course. Counseling about the importance of disease remission and the safety of IBD medication during pregnancy can ameliorate the pregnancy outcome. Active disease during pregnancy can lead to adverse pregnancy outcomes such as preterm birth and low birthweight. To maintain disease remission most therapies should be continued despite the wish to have children. Only a few substances currently used to treat Crohn's disease are contraindicated during pregnancy and should be stopped before conception. This includes Januskinase (JAK)-inhibitors and Methotrexate. Biologics including anti-TNF-therapy, anti-IL-12/anti-IL-23 and anti-integrin therapies should be continued during pregnancy.

Case report: A pregnant woman with Crohn disease who used ustekinumab to the 3rd trimester developed severe infection

RATIONALE

Crohn disease (CD) and pregnancy often impact each other, which poses challenges for women with CD to successfully give birth to a healthy baby. The latest guideline recommends that patients with active inflammatory bowel disease delay pregnancy to induce remission and optimize disease control. Research data has showed that the incidence of infection and severe infection in patients treated with ustekinumab (UST) did not increase compared to those treated with a placebo.

PATIENT CONCERNS

This report describes the entire process of a pregnant woman with CD who has undergone ileostomy and long-term enteral nutrition and requires biological agents to control the disease, from conception to delivery. This case was pregnant during CD period and regularly treated with UST to the third trimester, with the onset of sepsis and septic shock at 38 weeks gestation.

DIAGNOSES

The patient was pathologically diagnosed with CD 16 years ago and admitted to our department at 38 weeks gestation.

INTERVENTIONS

After admission to our department, fetal heart monitoring indicated fetal distress, so we immediately terminated the pregnancy by cesarean section. After the diagnosis of septic shock, the patient was transferred to intensive care unit for active anti-infection and symptomatic supportive treatment.

OUTCOMES

The mother only experienced an infection in the third trimester, and cured by active treatment. The newborn was delivered at full term and confirmed to be low birth weight.

LESSONS

Her experience suggests that although pregnant during Crohn active period, a good outcome can be achieved through positively controlling with medication and closely monitoring it. The use of UST during pregnancy appears to be safe for both the mother and fetus but may be associated with severe infections.

Monitoring of Inflammatory Bowel Disease in Pregnancy: A Review of the Different Modalities

Inflammatory Bowel Disease (IBD) significantly affects women in their reproductive years. Understanding the relationship between IBD and pregnancy is crucial, given its impact across pre-gestational, gestational, and postpartum phases. Monitoring IBD activity during pregnancy involves various modalities. This review discusses these modalities, focusing on the efficacy and safety of Small Intestine Ultrasound (IUS) as a noninvasive and reliable option. While IUS has gained popularity, its technique-sensitive nature necessitates trained staff for optimal usage.

Female and Male Fertility after Colectomy and Reconstructive Surgery in Inflammatory Bowel Diesase: A National Cohort Study from Sweden

BACKGROUND AND AIMS

Colectomy and reconstruction in patients with inflammatory bowel disease [IBD] may adversely affect fertility, but few population-based studies on this subject are available.

METHODS

Fertility was assessed in 2989 women and 3771 men with IBD and prior colectomy during 1964-2014, identified from the Swedish National Patient Register, and in 35 092 matched individuals.

RESULTS

Reconstruction with ileoanal pouch anastomosis [IPAA] was as common as ileorectal anastomosis [IRA] in ulcerative colitis [UC] and IBD-unclassified [IBD-U] but rare in Crohn's disease [CD]. Compared with the matched reference cohort, women with IBD had lower fertility overall after colectomy (hazard ratio [HR] 0.65, confidence interval [CI] 0.61-0.69), with least impact with leaving the rectum intact [HR 0.79, CI 0.70-0.90]. Compared with colectomy only, fertility in female patients remained unaffected after IRA [HR 0.86, CI 0.63-1.17 for UC, 0.86, CI 0.68-1.08 for IBD-U and 1.07, CI 0.70-1.63 for CD], but was impaired after IPAA, especially in UC [HR 0.67, CI 0.50-0.88], and after completion proctectomy [HR 0.65, CI 0.49-0.85 for UC, 0.68, CI 0.55-0.85 for IBD-U and 0.61, CI 0.38-0.96 for CD]. In men, fertility was marginally reduced following colectomy [HR 0.89, CI 0.85-0.94], regardless of reconstruction.

CONCLUSIONS

Fertility was reduced in women after colectomy for IBD. The least impact was seen when a deviated rectum was left intact. IRA was associated with no further reduction in fertility, whereas proctectomy and IPAA were associated with the strongest impairment. IRA therefore seems to be the preferred reconstruction to preserve fertility in selected female patients. Fertility in men was only moderately reduced after colectomy.

IBD and Motherhood: A Journey through Conception, Pregnancy and Beyond

Inflammatory Bowel Disease (IBD) presents distinct challenges during pregnancy due to its influence on maternal health and pregnancy outcomes. This literature review aims to dissect the existing scientific evidence on pregnancy in women with IBD and provide evidence-based recommendations for clinical management. A comprehensive search was conducted across scientific databases, selecting clinical studies, systematic reviews, and other pertinent resources. Numerous studies have underscored an increased risk of complications during pregnancy for women with IBD, including preterm birth, low birth weight, neonates small for gestational age, and congenital malformations. Nevertheless, it's evident that proactive disease management before and throughout pregnancy can mitigate these risks. Continuation of IBD treatment during pregnancy and breastfeeding is deemed safe with agents like thiopurines, anti-TNF, vedolizumab, or ustekinumab. However, there's a call for caution when combining treatments due to the heightened risk of severe infections in the first year of life. For small molecules, their use is advised against in both scenarios. Effective disease management, minimizing disease activity, and interdisciplinary care are pivotal in attending to women with IBD. The emphasis is placed on the continual assessment of maternal and infant outcomes and an expressed need for further research to enhance the understanding of the ties between IBD and adverse pregnancy outcomes.

[Diversity in gastroenterology - A focus on inflammatory bowel diseases]

Factors related to patient diversity may play a major role in the pathogenesis and clinical manifestation of intestinal and liver diseases and should be considered during diagnostic workup and therapeutic decisions. Here we discuss how diversity factors such as gender, ethnicity, age and socioeconomic parameters may affect the manifestation and disease course of inflammatory bowel diseases (IBD, i.e. Crohn's disease and ulcerative colitis). Consideration of such factors may help to pave the path towards personalized medicine approaches in clinical practice.

Inflammatory bowel disease in pregnancy and breastfeeding

Inflammatory bowel disease (IBD) has a peak age of diagnosis before the age of 35 years. Concerns about infertility, adverse pregnancy outcomes, and heritability of IBD have influenced decision-making for patients of childbearing age and their care providers. The interplay between the complex physiology in pregnancy and IBD can affect placental development, microbiome composition and responses to therapy. Current evidence has shown that effective disease management, including pre-conception counselling, multidisciplinary care and therapeutic agents to minimize disease activity, can improve pregnancy outcomes. This Review outlines the management of IBD in pregnancy and the safety of IBD therapies, including novel agents, with regard to both maternal and fetal health. The vast majority of IBD therapies can be used with low risk during pregnancy and lactation without substantial effects on neonatal outcomes.

Australian inflammatory bowel disease consensus statements for preconception, pregnancy and breast feeding

OBJECTIVE

Because pregnancy outcomes tend to be worse in women with inflammatory bowel disease (IBD) than in those without, we aimed to update consensus statements that guide the clinical management of pregnancy in patients with IBD.

DESIGN

A multidisciplinary working group was established to formulate these consensus statements. A modified RAND/UCLA appropriateness method was used, consisting of a literature review, online voting, discussion meeting and a second round of voting. The overall agreement among the delegates and appropriateness of the statement are reported.

RESULTS

Agreement was reached for 38/39 statements which provide guidance on management of pregnancy in patients with IBD. Most medications can and should be continued throughout pregnancy, except for methotrexate, allopurinol and new small molecules, such as tofacitinib. Due to limited data, no conclusion was reached on the use of tioguanine during pregnancy. Achieving and maintaining IBD remission before conception and throughout pregnancy is crucial to optimise maternofetal outcomes. This requires a multidisciplinary approach to engage patients, allay anxieties and maximise adherence tomedication. Intestinal ultrasound can be used for disease monitoring during pregnancy, and flexible sigmoidoscopy or MRI where clinically necessary.

CONCLUSION

These consensus statements provide up-to-date, comprehensive recommendations for the management of pregnancy in patients with IBD. This will enable a high standard of care for patients with IBD across all clinical settings.

Current Trends on Bioengineering Approaches for Ovarian Microenvironment Reconstruction

Ovarian tissue has a unique microarchitecture and a complex cellular and molecular dynamics that are essential for follicular survival and development. Due to this great complexity, several factors may lead to ovarian insufficiency, and therefore to systemic metabolic disorders and female infertility. Techniques currently used in the reproductive clinic such as oocyte cryopreservation or even ovarian tissue transplant, although effective, have several limitations, which impair their wide application. In this scenario, mimetic ovarian tissue reconstruction comes as an innovative alternative to develop new methodologies for germ cells preservation and ovarian functions restoration. The ovarian extracellular matrix (ECM) is crucial for oocyte viability maintenance, once it acts actively in folliculogenesis. One of the key components of ovarian bioengineering is biomaterials application that mimics ECM and provides conditions for cell anchorage, proliferation, and differentiation. Therefore, this review aims at describing ovarian tissue engineering approaches and listing the main limitations of current methods for preservation and reestablishment of ovarian fertility. In addition, we describe the main elements that structure this study field, highlighting the main advances and the challenges to overcome to develop innovative methodologies to be applied in reproductive medicine. Impact Statement This review presents the main advances in the application of tissue bioengineering in the ovarian tissue reconstruction to develop innovative solutions for ovarian fertility reestablishment.

Pregnancy in Patients with Inflammatory Bowel Diseases-A Literature Review

In recent years, we have faced an increasing incidence of inflammatory bowel disease (IBD), especially among young people, affecting them during their reproductive years. The paucity of data and reduced knowledge regarding the evolution of the disease during pregnancy and the adverse effects of the therapy on the mother and infant increase voluntary childlessness in this group of patients. Depending on the type of IBD, severity and surgical or medical management, this can negatively affect the pregnancy. C-sections and the risk of low-birth-weight babies are higher in women with IBD, independent of active/inactive disease, while preterm birth, stillbirth and miscarriage are associated with disease activity. In the last period, medicinal therapy has evolved, and new molecules have been developed for better control of the lesions, but the effect on pregnancy and breastfeeding is still controversial. We conducted this review by studying the literature and recent research in order to have a better image of the practical management of IBD during pregnancy.

Impact of Female Gender in Inflammatory Bowel Diseases: A Narrative Review

Inflammatory bowel diseases show a gender bias, as reported for several other immune-mediated diseases. Female-specific differences influence disease presentation and activity, leading to a different progression between males and females. Women show a genetic predisposition to develop inflammatory bowel disease related to the X chromosome. Female hormone fluctuation influences gastrointestinal symptoms, pain perception, and the state of active disease at the time of conception could negatively affect the pregnancy. Women with inflammatory bowel disease report a worse quality of life, higher psychological distress, and reduced sexual activity than male patients. This narrative review aims to resume the current knowledge of female-related features in clinical manifestations, development, and therapy, as well as sexual and psychological implications related to inflammatory bowel disease. The final attempt is to provide gastroenterologists with a roadmap of female-specific differences, to improve patients' diagnosis, management, and treatment.

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.

Fertility and assisted reproductive technologies outcomes of women with non-surgically managed inflammatory bowel diseases: a systematic review

BACKGROUND AND AIM

In view of their frequent onset during childbearing years, the impact of inflammatory bowel diseases (IBD) on reproductive health is of important concern to young women and to the IBD physician. This study aims to assess the fertility and assisted reproductive technologies outcomes in non-surgically treated IBD female.

METHODS

A systematic review was conducted using MEDLINE, SCOPUS and EMBASE (until March 2022) to identify studies assessing fertility and assisted reproductive technologies outcomes in women with non-operated IBD, compared to non-IBD patients. Two reviewers independently selected studies, assessed risk of bias and extracted study data.

RESULTS

A total of 14 studies encompassing 18 012 patients with ulcerative colitis (UC) and 14 353 patients with Crohn's disease (CD) were included for analysis. The fertility rate in UC patients and in the general population was comparable, but UC patients tended to have fewer children, mainly by choice. On the contrary, the fertility of CD patients appeared to be reduced. Although a deliberate component cannot be not excluded, the disease itself could affect fertility. Disease activity was associated with reduced fertility in both UC and CD patients. In CD, the colonic involvement of the disease and perianal damage could be associated with subfertility, but data are less consistent. According to the only study reporting the assisted reproductive technologies outcomes, pregnancy rates after in vitro fertilization in subfertile non-operated UC patients and non-IBD patients were similar.

CONCLUSION

There is low-quality evidence from observational studies that patients with CD and relapsing UC may have impaired fertility. After assisted reproductive technologies, pregnancy rates of subfertile nonoperated UC patients were similar to those of the general population, although this observation requires further scrutiny in larger studies that should include UC and CD patients.

Ovarian reserve and IVF outcomes in patients with inflammatory bowel disease: A systematic review and meta-analysis

BACKGROUND

Inflammatory bowel disease (IBD) mainly affects people during reproductive age. However, it is unclear whether IBD might be associated with impaired ovarian reserve in female patients or with in vitro fertilization (IVF) outcomes.

METHODS

This systematic review and meta-analysis included articles from inception to May, 2022. Random-effect model was applied to calculate the standardized mean differences (SMDs) and odds ratios (ORs) and their 95% confidence intervals (95%CIs). Studies comparing the ovarian reserve or IVF outcomes of patients with IBD with the population were considered. To be included in this study, necessary measurements such as OR, relative risk (RR), SMD or hazard ratio (HR) or any necessary information to calculate them were provided in the articles. Letters, case reports, review articles including meta-analyses and expert opinions were excluded. For different articles studying the same population, the article with larger scale was selected.

FINDINGS

We included in our analysis 9 studies and data from 2386 IBD records and matched controls. Comparing with women without IBD, women with IBD had lower anti-mullerian hormone (AMH) levels (SMD = -0.38, 95%CI: -0.67, -0.09); (I2 = 79.0%, p = 0.000). Patients with IBD of different ages showed distinct ovarian reserves, with patients below 30 years old not showing any decline in ovarian reserve compared to the control group (SMD = -0.56, 95%CI: -2.28, 1.16); (I2 = 96.3%; p = 0.000), while patients with IBD over 30 years old (SMD = -0.75, 95%CI: -1.07, -0.43); (I2 = 0.0%; p = 0.608) showed a decline compared to control group. Patients with IBD in remission stage had similar ovarian reserves to population (SMD = -0.10, 95%CI: -0.32, 0.12); (I2 = 0.0%; p = 0.667), while patients in active stage showed an impaired ovarian reserve (SMD = -1.30, 95%CI: -1.64, -0.96); (I2 = 0.0%; p = 0.318). Patients with IBD showed a pregnancy rate after receiving IVF treatment comparable to the control population (OR = 0.87, 95%CI: 0.55, 1.37); (I2 = 70.1%, p = 0.035).

INTERPRETATION

The result of this study suggest that IBD may reduce reproductive age women's ovarian reserve and IVF treatment might help pregnancy outcomes in patients with impaired fertility. These results should be further validated in additional studies given the heterogeneity and quality of the studies included.

FUNDING

This study was supported by the National Natural Science Foundation of China (No. 81671423), National Key Research and Development Program of China (No. 2016YFC1000603), 2020 Shenyang Science and Technology Plan Program (No. 20-205-4-006), Scientific and Technological Talents Applied Technology Research Program of Shenyang (No. 18-014-4-56).

Pregnancy and Live Birth Rates Over Time in Women With Inflammatory Bowel Disease: A Population-Based Cohort Study

Background

Inflammatory bowel disease (IBD) negatively affects fertility and fecundity. We aimed to determine longitudinal trends in and factors that affect pregnancy rates in women with ulcerative colitis (UC) and Crohn's disease (CD).

Methods

Women in the University of Manitoba IBD Epidemiology Database aged 15 to 45 were identified between 1992 and 2018 and matched up to 10 non-IBD controls. Pregnancy and live birth rates were compared between women with and without UC or CD stratified by time-period, disease duration and maternal age at conception. Incidence rate ratios (IRR) with 95% confidence intervals (CI) were calculated. Poisson regression was used to adjust these rates for year of pregnancy, disease duration, maternal age, severity of IBD, and prior IBD-related surgery.

Results

Compared to controls, women with UC had lower rates of pregnancies (IRR 0.91, 95% CI: 0.82-0.99) and women with CD had lower rates of pregnancies (IRR 0.85, 95% CI: 0.79-0.93) and live births (IRR 0.83, 95% CI: 0.75-0.92). Although rates of pregnancies and live births were significantly lower in women with UC and CD compared to controls prior to 2010, there appeared to be no differences between the two groups after 2010. Prior intestinal surgery and active disease at conception appeared to lower pregnancy rates in women with UC and CD, respectively.

Conclusion

This study demonstrates that women with IBD have lower pregnancy rates compared to those without IBD, though these differences are no longer evident after 2010. Factors that continue to reduce these rates include prior colectomy and underlying disease activity.

The impact of the ileoanal pouch on female fertility in ulcerative colitis: A systematic review and meta-analysis

AIM

Ileal pouch-anal anastomosis is a restorative option for patients with ulcerative colitis (UC) requiring surgery. The primary outcome of this study was the relative risk of infertility in women with UC undergoing restorative proctocolectomy (RPC) compared to the same patients before undergoing RPC. Infertility was defined as the inability to conceive after 1 year of regular sexual intercourse without contraception.

METHODS

A systematic review and meta-analysis were performed to include all relevant articles from 1946 from MEDLINE, Embase and Cochrane Central Register of Controlled Trials. Studies included reported on the fertility rate of a cohort with UC and also reported the rate after RPC in those within the cohort who underwent surgery. This study was registered on PROSPERO (CRD42021259745).

RESULTS

Thirteen studies met the inclusion criteria and accounted for 793 patients pre-pouch and 802 post-pouch. The mean and median age of the patients at analysis was 36.8 and 32.7 years respectively; and the median duration of follow-up following ileal pouch-anal anastomosis was 110.4 (68-139) months. Our results highlight that following RPC the relative risk of infertility is 4.17 (95% CI 1.99, 8.74) compared with patients before RPC who had UC.

CONCLUSIONS

The findings of this meta-analysis provide an update on a previous meta-analysis published over a decade ago and results remain congruent. This suggests that despite advancements in surgical techniques the risk to fertility remains similar to a decade ago. However, further high quality studies are needed to try and decipher independent risk factors associated with a decrease in infertility.

Pregnancy outcomes after stoma surgery for inflammatory bowel disease: The results of a retrospective multicentre audit

AIM

There is a paucity of data on pregnancies in women with stomas due to inflammatory bowel disease (IBD). The aim of this study was to assess stoma, IBD, obstetric and neonatal outcomes in pregnant patients with IBD and a stoma.

METHOD

Multicentre retrospective audit in 15 UK hospitals. Pregnancy, stoma and neonatal outcomes were elicited from routinely collected hospital records.

RESULTS

Data on 82 pregnancies from 77 patients (mean age 31.4 years, 60.9% Crohn's disease, 35.4% ulcerative colitis, 3.6% IBD-U) were included. Stoma types included ileostomy in 72 (88%) and colostomy in 10 (12%) women. There was one reported miscarriage, one still birth and 80 live births. Delivery occurred in 58 cases by caesarean section (CS), of which 44 were performed electively and 14 as emergency CS. The overall CS rate was 73%. Premature delivery before week 37 occurred in 19% and birth weight <2,500 g in 17%. Significant stoma related complications occurred during 20 (24%) pregnancies and included stoma prolapse in nine cases (2 required surgery), parastomal hernias in three cases (2 required surgery) and small bowel obstructions in seven cases (3 required surgery).

CONCLUSIONS

Pregnancy for women who previously had stoma formation for IBD is associated with higher rates of caesarean section and stoma complications. Future prospective studies should capture data, including patient reported outcomes, to gather a full picture on the impact of pregnancy after stoma surgery for IBD.

Fertility and Pregnancy in Crohn's Disease

The prevalence of inflammatory bowel disease is continuing to increase worldwide and is more commonly diagnosed in women of reproductive age. Individuals with Crohn's disease may have inaccurate perceptions regarding the rate of infertility, heritability, and the safety of taking therapies for Crohn's disease during pregnancy, all of which greatly affect their decisions surrounding family planning. Given this area of need for both patients and providers, in this article, we have included the latest evidence on the impact of Crohn's disease on fertility, heritability, pregnancy outcomes, and the safety of medications for Crohn's disease during pregnancy and lactation.

Outcomes during delivery hospitalisations with inflammatory bowel disease

OBJECTIVE

To characterise inflammatory bowel disease (IBD) trends and associated risk during delivery hospitalisations.

DESIGN

Cross-sectional.

SETTING

US delivery hospitalisations.

POPULATION

Delivery hospitalisations in the 2000-2018 National Inpatient Sample.

METHODS

This study analysed a nationally representative hospital discharge database based on the presence of IBD. Temporal trends in IBD were analysed using joinpoint regression to estimate the average annual percent change (AAPC). IBD severity was characterised by the presence of diagnoses such as penetrating and stricturing disease and history of bowel resection. Risks for adverse outcomes were analysed based on presence of IBD. Poisson regression models were performed with unadjusted and adjusted risk ratios (aRR) as measures of effect.

MAIN OUTCOME MEASURE

Prevalence of IBD and associated adverse outcomes.

RESULTS

Of 73 109 790 delivery hospitalisations, 89 965 had a diagnosis of IBD. IBD rose from 0.06% in 2000 to 0.21% in 2018 (AAPC 7.3%, 95% CI 6.7-7.9%). Among deliveries with IBD, IBD severity diagnoses increased from 4.1% to 8.1% from 2000 to 2018. In adjusted analysis, IBD was associated with increased risk for preterm delivery (aRR 1.50, 95% CI 1.47-1.53), severe maternal morbidity (aRR 1.93, 95% CI 1.83-2.04), venous thrombo-embolism (aRR 2.76, 95% CI 2.39-3.18) and surgical injury during caesarean delivery hospitalisation (aRR 5.03, 95% CI 4.76-5.31). In the presence of a severe IBD diagnosis, risk was further increased for all adverse outcomes.

CONCLUSION

IBD is increasing in the obstetric population and is associated with adverse outcomes. Risk is increased in the presence of a severe IBD diagnosis.

TWEETABLE ABSTRACT

Deliveries among women with inflammatory bowel disease are increasing. Disease severity is associated with adverse outcomes.

Gastroenterology team members' knowledge and practices with fertility therapy for women with inflammatory bowel disease

INTRODUCTION

Fecundity may be reduced in women with active inflammatory bowel disease (IBD) or prior IBD-related surgery, and these women may require assisted reproductive technology (ART). There are no guidelines for women with IBD to outline referral criteria for ART.

METHODS

We performed a prospective, multicentre, international questionnaire of gastroenterologists, gastroenterology trainees, and IBD nurses. The primary outcome was to establish clinical practices and fertility therapy referral patterns among gastroenterology team members. We hypothesised that the lack of knowledge and awareness may delay or prevent initiation of fertility consultation referrals.

DISCUSSION

Of 182 participants, most had never initiated a referral for fertility therapy (69.8%), and of respondents who do initiate referrals, 50% wait until the patient has been unsuccessfully attempting conception for 12 months. Participants were significantly more likely to initiate a fertility therapy referral if they believed ART was effective (p = 0.038), not impeded by IBD-related surgery (p = 0.053), and if they had access to a dedicated IBD-pregnancy clinic (p = 0.027). Superior pregnancy knowledge was predictive of a greater likelihood of fertility therapy referrals (p = 0.037). All participants thought they had inadequate knowledge about ART in IBD, and 96.2% expressed desire to improve their knowledge.

CONCLUSION

Gastroenterology team members infrequently initiate referrals for fertility therapy consultation in women with IBD, increasing their risk of remaining childless. Implementation of dedicated IBD pregnancy clinics and targeted education programmes to increase awareness of ART in women with IBD might increase referral rates and reduce infertility.

Female reproductive health and inflammatory bowel disease: A practice-based review

Inflammatory bowel diseases, namely ulcerative colitis and Crohn's disease, occur worldwide and affect people of all ages, with a high impact on their quality of life. Sex differences in incidence and prevalence have been reported, and there are also gender-specific issues that physicians should recognize. For women, there are multiple, important concerns regarding issues of body image and sexuality, menstruation, contraception, fertility, pregnancy, breastfeeding and menopause. This practice-based review focuses on the main themes that run through the life of women with inflammatory bowel diseases from puberty to menopause. Gastroenterologists who specialize in inflammatory bowel diseases and other physicians who see female patients with inflammatory bowel diseases should provide support for these problems and offer adequate therapy to ensure that their patients achieve the same overall well-being and health as do women without inflammatory bowel diseases.

Assisted Reproductive Technology in Crohn's Disease and Ulcerative Colitis: A Systematic Review and Meta-Analysis

INTRODUCTION

Infertility may occur in women with Crohn's disease (CD) and ulcerative colitis (UC), especially after surgery such as ileal pouch-anal anastomosis (IPAA). Assisted reproductive technology (ART) may be an option, but the safety and efficacy in this setting has been based on small cohorts to date. We performed a systematic review and meta-analysis to address this data gap.

METHODS

A systematic review and random-effects meta-analysis was performed until May 2020. The primary outcomes were pregnancy and live birth rates per cycle of ART.

RESULTS

Eleven studies met inclusion criteria for the systematic review and 4 for the meta-analysis. Compared with the general population, women with CD (with and without previous surgery) had no difference in pregnancy rates (odds ratio [OR] = 0.69, 95% confidence interval [CI]: 0.45-1.05) but had reduced live births (OR = 0.67, 95% CI: 0.53-0.85) per cycle of ART. ART live birth rates are not reduced in women with medically managed CD; however, they are 49%-71% lower after CD-related surgery. Women with UC had no difference in both pregnancy rates (OR = 0.99, 95% CI: 0.63-1.55) and live birth rates (OR = 0.88, 95% CI: 0.67-1.17); however, live birth rates were reduced after IPAA failure (hazard ratio = 0.36, 95% CI: 0.14-0.92). Two studies did not identify any significant safety signals.

DISCUSSION

ART is safe and effective in patients with UC and medically managed CD, with pregnancy and live birth rates similar to that of the general population. However, within the limitations of the available literature, current data suggest that efficacy is reduced in women with CD-related surgery and IPAA failure. Greater gastroenterologist awareness of ART is needed to facilitate timely fertility therapy referral when indicated, particularly in CD.

The impact of medical therapies and factors related to treatment procedures in women with rheumatoid arthritis and inflammatory bowel disease receiving assisted reproduction: a nationwide cohort study

OBJECTIVE

To examine whether medications used to treat rheumatoid arthritis (RA)/chronic inflammatory bowel disease (IBD), or factors related to the assisted reproductive technology (ART) procedures, impact the success of ART. In women with RA/IBD, initial studies have shown a reduced chance of a live-born child after ART.

DESIGN

Cohort study.

SETTING

Nationwide Danish health registries.

PATIENTS

All Danish women with a fresh embryo transfer from January 1, 2006, through 2018. The cohorts comprised 1,824 embryo transfers in women with RA/IBD and 97,191 embryo transfers in women without RA/IBD.

INTERVENTIONS

Observational, noninterventional study.

MAIN OUTCOME MEASURE

Live birth per fresh embryo transfer.

RESULTS

The chance of a live birth in women with RA/IBD receiving ART, compared with other women receiving ART, had an adjusted odds ratio (OR) of 0.79 (95% confidence interval [CI], 0.68-0.91). Prescribed corticosteroids before embryo transfer were positively associated with a live-born child (adjusted OR, 1.21; 95% CI, 1.12-1.31), while the use of antiinflammatory/immunosuppressive agents did not have significant importance. Intracytoplasmic sperm injection was associated with a reduced chance (adjusted OR, 0.94; 95% CI, 0.90-0.97). Type of hormone treatment protocol did not have significant importance, and transfer at the blastocyst stage was positively associated with a live-born child (adjusted OR, 1.54; 95% CI, 1.46-1.62).

CONCLUSIONS

In women with RA and/or IBD, prescribed corticosteroid before embryo transfer and embryo transfer at the blastocyst stage were associated with successful ART. Intracytoplasmic sperm injection was associated with a slightly reduced chance. Antiinflammatory/immunosuppressive agents and type of hormone protocols did not have significant importance.

The Patterns of Use of Medications for Inflammatory Bowel Disease During Pregnancy in the US and Sweden Are Changing

BACKGROUND

Population-level data spanning different countries describing oral and parenteral treatment in pregnant women with inflammatory bowel disease (IBD) are scarce. We studied treatment with sulfasalazine/5-aminosalicylates, corticosteroids, thiopurines/immunomodulators, and tumor necrosis factor (TNF)-inhibitors in the United States (Optum Clinformatics Data Mart and the Medicaid Analytics Extract [MAX]) and in the Swedish national health registers.

METHODS

We identified 2975 pregnant women in Optum (2004-2013), 3219 women in MAX (2001-2013), and 1713 women in Sweden (2006-2015) with a recorded diagnosis of IBD. We assessed patterns of use for each drug class according to filled prescriptions, assessing frequency of treatment continuation in those that were treated in the prepregnancy period.

RESULTS

The proportion of women with Crohn's disease and ulcerative colitis on any treatment during pregnancy was 56.1% and 56.3% in Optum, 47.5% and 49.3% in MAX, and 61.3% and 64.7% in Sweden, respectively, and remained stable over time. Sulfasalazine/5-aminosalicylates was the most commonly used treatment in Crohn's disease, ranging from 25.1% in MAX to 31.8% in Optum, and in ulcerative colitis, ranging from 34.9% in MAX to 53.6% in Sweden. From 2006 to 2012, the TNF-inhibitor use increased from 5.0% to 15.5% in Optum, from 3.6% to 8.5% in MAX, and from 0.7% to 8.3% in Sweden. Continuing TNF-inhibitor treatment throughout pregnancy was more common in Optum (55.8%) and in MAX (43.0%) than in Sweden (11.8%).

CONCLUSIONS

In this population-based study from 2 countries, the proportion of women with IBD treatment in pregnancy remained relatively constant. TNF-inhibitor use increased substantially in both countries.

The Efficacy of Assisted Reproduction in Women with a Wide Spectrum of Chronic Diseases - A Review

Assisted reproductive technology (ART) treatments in women with underlying chronic diseases have become increasingly frequent. The objective of this review is to provide an overview of the literature examining the chance of having a live born child after ART in women with chronic diseases, compared to other women receiving ART. We focused on some of the most prevalent chronic diseases in women during their reproductive years, ie ulcerative colitis, Crohn's disease, rheumatoid arthritis, multiple sclerosis, epilepsy, hyperthyroidism, hypothyroidism, and diabetes mellitus. Secondly, we studied the chance of successful implantation. The literature search was performed in the database Pubmed.gov. including all studies published before October 2020. Title and abstracts of 58 papers were reviewed, 37 papers were excluded and other 8 studies were excluded after full-text evaluation. Only 13 papers were eligible for review. Results indicate that women with ulcerative colitis, Crohn's disease, rheumatoid arthritis, hyperthyroidism, and diabetes mellitus type 2 might have problems with low implantation rate or early embryo development during ART. On the contrary, the few studies on women with hypothyroidism, diabetes mellitus type 1, and epilepsy suggest an equivalent chance of a live birth compared to other women undergoing ART. A possible explanation behind these differences could reside in the disease-specific dysregulation of the innate or adaptive immune system. To our knowledge, this is the first review on ART in women with chronic diseases, and it has disclosed that the evidence in this area is indeed sparse. We encourage others to examine live birth after ART in women with chronic diseases.

Review of pregnancy in Crohn's disease and ulcerative colitis

Inflammatory bowel disease (IBD) frequently affects women of childbearing age and can have implications in pregnancy. Most women with IBD have comparable fertility with women in the general population. Fertility is reduced in women with active disease or previous ileal-pouch-anal anastomosis (IPAA) surgery and is temporarily reduced in men taking sulfasalazine. Women with IBD have an increased risk of preterm delivery, low birth weight, small-for-gestational-age infants and Cesarean section (CS) delivery, however, no increased risk of congenital abnormalities. These adverse outcomes are particularly prevalent for women with active IBD compared with those with quiescent disease. Conception should occur during disease remission to optimize maternal and fetal outcomes and reduce the risk of disease exacerbations during pregnancy. Pre-conception counseling is therefore pertinent to provide patient education, medication review for risk of teratogenicity and objective disease assessment. Most medications are safe during pregnancy and breastfeeding, with the exception of methotrexate, ciclosporin, allopurinol and tofacitinib. Delivery modality should be guided by obstetric factors in most cases; however, CS is recommended for women with active perianal disease and can be considered for women with inactive perianal disease or IPAA. In conclusion, most women with IBD have uncomplicated pregnancies. Active IBD is the predominant predictor of poor outcomes and disease exacerbations; therefore, maintenance of disease remission during and before pregnancy is crucial.

The Role of TNF-α and Anti-TNF-α Agents during Preconception, Pregnancy, and Breastfeeding

Tumor necrosis factor-alpha (TNF-α) is a multifunctional Th1 cytokine and one of the most important inflammatory cytokines. In pregnancy, TNF-α influences hormone synthesis, placental architecture, and embryonic development. It was also shown that increased levels of TNF-α are associated with pregnancy loss and preeclampsia. Increased TNF-α levels in complicated pregnancy draw attention to trophoblast biology, especially migratory activity, syncytialisation, and endocrine function. Additionally, elevated TNF-α levels may affect the maternal-fetal relationship by altering the secretory profile of placental immunomodulatory factors, which in turn affects maternal immune cells. There is growing evidence that metabolic/pro-inflammatory cytokines can program early placental functions and growth in the first trimester of pregnancy. Furthermore, early pregnancy placenta has a direct impact on fetal development and maternal immune system diseases that release inflammatory (e.g., TNF-α) and immunomodulatory factors, such as chronic inflammatory rheumatic, gastroenterological, or dermatological diseases, and may result in an abnormal release of cytokines and chemokines in syncytiotrophoblasts. Pregnancy poses a challenge in the treatment of chronic disease in patients who plan to have children. The activity of the disease, the impact of pregnancy on the course of the disease, and the safety of pharmacotherapy, including anti-rheumatic agents, in pregnancy should be considered.

Women's Health and Ulcerative Colitis

Although ulcerative colitis affects males and females at similar rates, certain sex-specific differences influence the disease-related risks and experiences of females with ulcerative colitis. This article reviews topics that affect females with ulcerative colitis, including the impact of disease on the menstrual cycle, fertility, child bearing, sexual health, and recommendations for health care maintenance.

Sex matters: impact on pathogenesis, presentation and treatment of inflammatory bowel disease

Inflammatory bowel disease (IBD), as do most chronic inflammatory disorders, displays unique features and confers different risk factors in male and female patients. Importantly, sex-based differences in IBD exist for epidemiological incidence and prevalence among different age groups, with men and women developing distinct clinical symptoms and disparity in severity of disease. In addition, the presentation of comorbidities in IBD displays strong sex differences. Notably, particular issues exclusive to women's health, including pregnancy and childbirth, require specific considerations in female patients with IBD of childbearing age that can have a substantial influence on clinical outcomes. This Review summarizes the latest findings regarding sex-based differences in the epidemiology, clinical course, comorbidities and response to current therapies in patients with IBD. Importantly, the latest basic science discoveries in this area of investigation are evaluated to provide insight into potential mechanisms underlying the influence of sex on disease pathogenesis, as well as to design more personalized and efficacious care, in patients with IBD.

Impaired Fertility in Women With Inflammatory Bowel Disease: A National Cohort Study From Sweden

BACKGROUND AND AIMS

Inflammatory bowel disease [IBD] has been associated with reduced female fertility. We analyse fertility in a national cohort of women with IBD.

METHODS

Fertility was assessed in women with IBD aged 15-44 years in 1964-2014, identified from the Swedish National Patient Register and a matched cohort [ratio 1:5]. Patients with indeterminate colitis or inconsistent IBD coding were classified as IBD-unclassified [IBD-U].

RESULTS

The cohorts included 27 331 women with IBD and 131 892 matched individuals. The fertility rate in IBD was 1.52 (standard deviation [SD] 1.22) births per 1000 person-years and 1.62 [SD 1.28] [p <0.001] in matched individuals. Fertility was impaired in all IBD subtypes compared with the matched cohort (hazard ratio Crohn's disease [CD] 0.88, 95% confidence interval [CI] 0.85-0.91; IBD-U 0.86, 95% CI 0.83-0.89; and ulcerative colitis [UC] 0.96, 95% CI 0.93-0.98). Fertility improved during the study period for the IBD cohort except for CD. Parity progression ratio, the proportion of IBD women progressing from one parity to the next compared with the matched cohort, was decreased at all parity levels for CD and IBD-U, but only for multiparous women in UC. Contraceptive usage was higher in IBD, both before and after the diagnosis. Disease severity, bowel resections, and perianal disease in CD affected fertility negatively.

CONCLUSIONS

Fertility was impaired mainly in women with CD and IBD-U, and less so in UC. During the study period, fertility improved in women with UC or IBD-U. Some results suggest a role of voluntarily reduced fertility.

Knowledge and Attitudes Towards Pregnancy in Females with Inflammatory Bowel Disease: An International, Multi-centre Study

BACKGROUND AND AIMS

Poor knowledge of inflammatory bowel disease [IBD] in pregnancy underlies unwarranted voluntary childlessness [VC], and risks poorer obstetric outcomes and adverse fetal outcomes. IBD is increasing worldwide but education on IBD issues might be heterogeneous based on cultural differences and variations in models of care.

METHODS

Consecutive female IBD subjects aged 18-45 years were prospectively recruited from two dedicated IBD-pregnancy clinics, two multidisciplinary IBD clinics and nine general gastroenterology clinics. Subjects completed the validated CCPKnow [score 0-17] with questions on demographics, medical history and pregnancy knowledge. The primary outcome was knowledge per clinic-type and per geographical region.

RESULTS

Surveys were completed by 717 subjects from 13 hospitals across ten countries. Dedicated IBD-pregnancy clinics had the highest knowledge, followed by multidisciplinary IBD clinics then general IBD clinics (median CCPKnow 10.0 [IQR: 8.0-11.0], 8.0 [IQR: 5.0-10.5] and 4.0 [IQR:2.0-6.0]; p < 0.001). Median CCPKnow scores in Western, Asian and Middle Eastern clinics were 9.0, 5.0 and 3.0 respectively [p < 0.001]. Dedicated IBD-pregnancy clinics, IBD support organization membership, childbearing after IBD diagnosis and employment independently predicted greater knowledge. Patient perception of disease severity [r = -0.18, p < 0.01] and consideration of VC [r = -0.89, p = 0.031] negatively correlated with CCPKnow score. The overall VC rate was 15.0% [95% CI: 12.2-18.2]. VC subjects had significantly lower pregnancy-specific IBD knowledge than non-VC subjects (median CCPKnow 4.0 [IQR: 2.0-6.0] and 6.0 [IQR: 3.0-9.0] respectively; p < 0.001). Pregnancy-specific IBD knowledge and dedicated IBD-pregnancy clinic attendance were significant negative predictors of VC.

CONCLUSIONS

In this large international study we identified predictors of pregnancy-specific IBD knowledge. Dedicated IBD-pregnancy clinics had the greatest IBD-related pregnancy knowledge and lowest VC rates, reflecting the benefits of pre-conception counselling.

Provision of care for pregnant women with IBD in the UK: the current landscape

INTRODUCTION

Suboptimal control of inflammatory bowel disease (IBD) can result in increased rates of adverse pregnancy-related outcomes. We aimed to describe the current landscape of provision of antenatal care for women with IBD in the UK.

METHODS

This cross-sectional survey collected data on service setup; principles of care pre-conception, during pregnancy and post partum; and on perceived roles and responsibilities of relevant clinicians.

RESULTS

Data were provided for 97 IBD units. Prepregnancy counselling was offered mostly on request only (54%) and in an ad hoc manner. In 86% of units, IBD antenatal care was provided by the patient's usual gastroenterologist, rather than a gastroenterologist with expertise in pregnancy (14%). Combined clinics with obstetricians and gastroenterologists were offered in 14% of units (24% academic vs 7% district hospitals; p=0.043). Communication with obstetrics was 'as and when required' in 51% and 30% of IBD units reviewed pregnant women with IBD 'only when required'. The majority of respondents thought gastroenterologists should be involved in decisions regarding routine vaccinations (70%), breast feeding (80%), folic acid dosage (61%) and venous thromboembolism (VTE) prophylaxis (53%). Sixty-five per cent of respondents thought that gastroenterologists should be involved in decisions around mode of delivery and 30% recommended caesarean sections for previous but healed perianal disease.

CONCLUSIONS

This nationwide survey found considerable variation in IBD antenatal services. We identified deficiencies in service setup, care provided by IBD units and clinician knowledge. A basic framework to inform service setup, and better education on the available clinical guidance, is required to ensure consistent high-quality multidisciplinary care.

Pregnancy outcomes in women with inflammatory bowel disease who successfully conceived via assisted reproduction technique

OBJECTIVE

Women with inflammatory bowel disease (IBD) have an increased risk for adverse pregnancy outcome, so as women using assisted reproduction technology (ART). However, data are scarce regarding the risk imposed by the combination of both. Thus, we aimed to assess pregnancy outcome in these women.

METHODS

A retrospective case-control study, of women with IBD who conceived using ART due to female infertility. The study group (IBD-ART) was matched using propensity score and compared in a 1:1 ratio with three control groups, IBD patients who conceived spontaneously (IBD-SP), women using ART (H-ART) and women who conceived spontaneously (H-SP).

RESULTS

The study group comprised of 49 women with IBD conceived via ART that gave birth at our center during the study period. All studied groups did not differ in demographics and obstetric characteristics. IBD groups (both ART and spontaneous) were comparable in disease status prior and throughout pregnancy. Maternal outcome showed no difference regarding preterm birth and pregnancy complications among all studied groups. Women in the IBD-ART group had decreased rates of vaginal delivery (34.7% vs 57.1%, p = 0.032) and higher rates of elective CS (32.7% vs 14.3%, p = 0.048) in comparison to H-SP group, but comparable rates to both IBD-SP and H-ART groups. Neonatal outcomes were comparable among all studied groups. In a sub-analysis by disease type, a higher rate of gestational diabetes was found among ulcerative colitis patients using ART (29.4% Crohn's vs 6.1% UC, p = 0.025).

CONCLUSION

Patients with IBD undergoing ART have comparable pregnancy outcome to women using ART and to patients with IBD with spontaneous pregnancy.

Comparison of Time to Pregnancy in Women With and Without Inflammatory Bowel Diseases

BACKGROUND & AIMS

Patients are often diagnosed with inflammatory bowel diseases (IBD) during their peak reproductive years. We investigated how IBD affects fertility in a population study of women in Denmark.

METHODS

We collected data from the Danish National Birth Cohort, a nationwide study of 92,274 pregnant women recruited from 1996 through 2002. Women who had been actively trying to conceive reported their time to pregnancy through a computer-assisted telephone interview at approximately 16 weeks of gestation. Information regarding IBD was retrieved from the Danish National Patient Register. Using regression models and adjusting for important confounders, we compared time to pregnancy in women with and without IBD.

RESULTS

We calculated time to pregnancy for 74,471 pregnancies in women without IBD, 340 pregnancies in women with ulcerative colitis (UC), and 206 pregnancies in women with Crohn's disease (CD). Compared to non-IBD pregnancies, the adjusted relative risk ratios for time to pregnancy of more than 12 months in women with IBD, UC, and CD were 1.28 (95% CI, 0.99-1.65), 1.10 (95% CI, 0.80-1.51), and 1.54 (95% CI, 1.03-2.30), respectively. The adjusted relative risk ratio was 2.54 (95% CI, 1.39-4.65) for a time to pregnancy of more than 12 months in women who had CD surgery prior to conception vs non-IBD pregnancies. There were too few patients with UC with surgery prior to conception to perform meaningful analyses of this group.

CONCLUSIONS

In a study of women with IBD not confounded by voluntary childlessness, we found that women with CD, especially those who have undergone surgery, have a significant increase in time to pregnancy compared to women without IBD. This indicates reduced fertility in subgroups of women with IBD.

IBD in pregnancy: recent advances, practical management

Inflammatory bowel disease (IBD) poses complex issues in pregnancy, but with high-quality care excellent pregnancy outcomes are achievable. In this article, we review the current evidence and recommendations for pregnant women with IBD and aim to provide guidance for clinicians involved in their care. Many women with IBD have poor knowledge about pregnancy-related issues and a substantial minority remains voluntarily childless. Active IBD is associated with an increased risk of preterm birth, low for gestation weight and fetal loss. With the exception of methotrexate and tofacitinib the risk of a flare outweighs the risk of IBD medication and maintenance of remission from IBD should be the main of care. Most women with IBD will experience a normal pregnancy and can have a vaginal delivery. Active perianal Crohn's disease is an absolute and ileal pouch surgery a relative indication for a caesarean section. Breast feeding is beneficial to the infant and the risk from most IBD medications is negligible.