Obstetric Outcome After Surgical Treatment of Endometriosis: A Review of the Literature

A diagnosis of endometriosis is associated with increased risks of adverse pregnancy outcomes including placenta praevia and preterm birth. Some studies have also suggested associations with gestational hypertension, foetal growth restriction, gestational diabetes, perinatal death, and obstetric haemorrhage. This review aims to assess the impact of pre-pregnancy surgical treatment of endometriosis on future obstetric outcomes. A search of the Medline, Embase and PubMed electronic databases was performed to identify studies reporting pre-pregnancy surgery for endometriosis and subsequent pregnancy outcome compared to controls with unresected endometriosis. Three studies met the inclusion criteria. The studies were heterogenous in design, definition of study groups and outcome measures. All three studies were judged at critical risk of bias. Pre-pregnancy excision of endometriosis was associated with an increased risk of caesarean section in one of two studies, OR 1.72 (95% CI 1.59–1.86) and OR 1.79 (95% CI 0.69–4.64). Placenta praevia rates were also increased in one of two studies OR 2.83 (95% CI 0.56–12.31) and OR 2.04 (95% CI 1.66–2.52). One study found increased risks of preterm birth, small for gestational age, gestational hypertension, and antepartum and postpartum haemorrhage (all p < 0.05) with pre-pregnancy excision of endometriosis. There is insufficient evidence examining the role of pre-pregnancy endometriosis surgery in ameliorating adverse pregnancy outcomes, and thus reliable conclusions cannot be drawn. Prospectively designed studies are needed to assess the relationship between surgical treatments for endometriosis and obstetric outcome and examine potential confounders such as comorbid adenomyosis and infertility.

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The Impact of Gestational Weight Gain on the Risks of Adverse Maternal and Infant Outcomes among Normal BMI Women with High Triglyceride Levels during Early Pregnancy

Nutrients ◽

10.3390/nu13103454 ◽

2021 ◽

Vol 13 (10) ◽

pp. 3454

Author(s):

Xia-Fei Jiang ◽

Hui Wang ◽

Dan-Dan Wu ◽

Jian-Lin Zhang ◽

Ling Gao ◽

...

Keyword(s):

Weight Gain ◽

Preterm Birth ◽

Gestational Diabetes ◽

Early Pregnancy ◽

Pregnancy Outcomes ◽

Gestational Hypertension ◽

Adverse Pregnancy Outcomes ◽

Gestational Weight ◽

Adverse Pregnancy ◽

The Impact

A high maternal triglyceride (mTG) level during early pregnancy is linked to adverse pregnancy outcomes, but the use of specific interventions has been met with limited success. A retrospective cohort study was designed to investigate the impact of gestational weight gain (GWG) on the relationship between high levels of mTG and adverse pregnancy outcomes in normal early pregnancy body mass index (BMI) women. The patients included 39,665 women with normal BMI who had a singleton pregnancy and underwent serum lipids screening during early pregnancy. The main outcomes were adverse pregnancy outcomes, including gestational hypertension, preeclampsia, gestational diabetes, cesarean delivery, preterm birth, and large or small size for gestational age (LGA or SGA) at birth. As a result, the high mTG (≥2.05mM) group had increased risks for gestational hypertension ((Adjusted odds ratio (AOR), 1.80; 95% CI, 1.46 to 2.24)), preeclampsia (1.70; 1.38 to 2.11), gestational diabetes (2.50; 2.26 to 2.76), cesarean delivery (1.22; 1.13 to 1.32), preterm birth (1.42, 1.21 to 1.66), and LGA (1.49, 1.33 to 1.68) compared to the low mTG group, after adjustment for potential confounding factors. Additionally, the risks of any adverse outcome were higher in each GWG subgroup among women with high mTG than those in the low mTG group. High mTG augmented risks of gestational hypertension, preeclampsia, preterm birth, and LGA among women with 50th or greater percentile of GWG. Interestingly, among women who gained less than the 50th percentile of GWG subgroups, there was no relationship between high mTG level and risks for those pregnancy outcomes when compared to low mTG women. Therefore, weight control and staying below 50th centile of the suggested GWG according to gestational age can diminish the increased risks of adverse pregnancy outcomes caused by high mTG during early pregnancy.

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Impact of Wildfire Smoke on Adverse Pregnancy Outcomes in Colorado, 2007–2015

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph16193720 ◽

2019 ◽

Vol 16 (19) ◽

pp. 3720 ◽

Cited By ~ 9

Author(s):

Mona Abdo ◽

Isabella Ward ◽

Katelyn O’Dell ◽

Bonne Ford ◽

Jeffrey Pierce ◽

...

Keyword(s):

Birth Weight ◽

Pregnancy Outcomes ◽

Gestational Hypertension ◽

Adverse Pregnancy Outcomes ◽

Adverse Outcomes ◽

Wildfire Smoke ◽

Secondary Outcomes ◽

Adverse Pregnancy ◽

The Impact ◽

Zip Code

Colorado is regularly impacted by long-range transport of wildfire smoke from upwind regions. This smoke is a major source of ambient PM2.5. Maternal exposure to total PM2.5 during pregnancy has been linked to decreased birth weight and other adverse outcomes, although the impact of wildfire smoke contribution has only recently been investigated. The objective of this study was to estimate associations between adverse pregnancy outcomes and ambient wildfire smoke PM2.5. Wildfire smoke PM2.5 exposures were estimated using a previously published method incorporating ground-based monitors and remote sensing data. Logistic regression models stratified by ZIP code and mixed models with random intercept by ZIP code were used to test for associations. The primary outcomes of interest were preterm birth and birth weight. Secondary outcomes included gestational hypertension, gestational diabetes, neonatal intensive care unit admission, assisted ventilation, small for gestational age, and low birth weight. Exposure to wildfire smoke PM2.5 over the full gestation and during the second trimester were positively associated with pre-term birth (OR = 1.076 (μg/m3)−1 [95% CI = 1.016, 1.139; p = 0.013] and 1.132 (μg/m3)−1 [95% CI = 1.088, 1.178]; p < 0.0001, respectively), while exposure during the first trimester was associated with decreased birth weight (−5.7 g/(μg/m3) [95% CI: −11.1, −0.4; p = 0.036]). Secondary outcomes were mixed.

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Placental Growth Factor and Adverse Obstetric Outcomes in a Mixed-Risk Cohort of Women Screened for Preeclampsia in the First Trimester of Pregnancy

Fetal Diagnosis and Therapy ◽

10.1159/000514201 ◽

2021 ◽

pp. 1-9

Author(s):

Charlotte Kvist Ekelund ◽

Line Rode ◽

Ann Tabor ◽

Jon Hyett ◽

Andrew McLennan

Keyword(s):

Growth Factor ◽

Pregnancy Outcomes ◽

Gestational Hypertension ◽

Adverse Pregnancy Outcome ◽

First Trimester ◽

Placental Growth Factor ◽

Adverse Pregnancy Outcomes ◽

Adverse Outcomes ◽

Obstetric Outcomes ◽

Adverse Pregnancy

Objective: The study aimed to investigate the association between placental growth factor (PlGF) and adverse obstetric outcomes in a mixed-risk cohort of pregnant women screened for preeclampsia (PE) in the first trimester. Methods: We included women with singleton pregnancies screened for PE between April 2014 and September 2016. Outcome data were retrieved from the New South Wales Perinatal Data Collection (NSW PDC) by linkage to the prenatal cohort. Adverse outcomes were defined as spontaneous preterm birth (sPTB) before 37-week gestation, birth weight (BW) below the 3rd centile, PE, gestational hypertension (GH), stillbirth, and neonatal death. Results: The cohort consisted of 11,758 women. PlGF multiple of the median (MoM) was significantly associated with maternal sociodemographic characteristics (particularly smoking status and parity) and all biomarkers used in the PE first trimester screening model (notably pregnancy-associated plasma protein A MoM and uterine artery pulsatility index [PI] MoM). Low levels of PlGF (<0.3 MoM and <0.5 MoM) were independently associated with sPTB, low BW, PE, GH, and a composite adverse pregnancy outcome score, with odds ratios between 1.81 and 4.44 on multivariable logistic regression analyses. Conclusions: Low PlGF MoM levels are independently associated with PE and a range of other adverse pregnancy outcomes. Inclusion of PlGF should be considered in future models screening for adverse pregnancy outcomes in the first trimester.

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1332Endometriosis, assisted reproductive technology and adverse pregnancy outcomes: a population based data linkage study

International Journal of Epidemiology ◽

10.1093/ije/dyab168.302 ◽

2021 ◽

Vol 50 (Supplement_1) ◽

Author(s):

Ibinabo Ibiebele ◽

Tanya Nippita ◽

Rodney Baber ◽

Siranda Torvaldsen

Keyword(s):

Preterm Birth ◽

Assisted Reproductive Technology ◽

Pregnancy Outcomes ◽

Data Linkage ◽

Reproductive Technology ◽

Linkage Study ◽

Adverse Pregnancy Outcomes ◽

Placenta Praevia ◽

Antepartum Haemorrhage ◽

Adverse Pregnancy

Abstract Background Endometriosis is a chronic inflammatory disease characterised by endometrial tissue outside the uterus – pain and infertility are common symptoms. There is a paucity of data on the association between endometriosis and adverse pregnancy outcomes where the contribution of assisted reproductive technology (ART) use is also considered. This study will examine the association between endometriosis, with and without ART use, on adverse pregnancy outcomes. Methods Population data linkage study of all female NSW residents aged 15-45 years with a singleton birth in 2006-2015. Pregnancies were classified into 4 groups based on endometriosis diagnosis (yes/no) and ART use (yes/no). Multinomial logistic regression was used to estimate the odds of adverse pregnancy outcomes with 99% confidence intervals, adjusting for maternal and pregnancy factors. Outcomes assessed included placenta praevia, antepartum haemorrhage, planned birth (induction of labour or caesarean section) and preterm birth. Results Of 889,101 eligible pregnancies, women with endometriosis were more likely to be older while women who used ART were more likely to be nulliparous, birth in a private hospital and less likely to smoke. Adjusted odds ratios for selected study outcomes are outlined below. Conclusions Endometriosis is associated with increased odds of preterm birth, placenta praevia, antepartum haemorrhage and planned birth. In general, the odds of adverse pregnancy outcomes associated with endometriosis were further increased with ART use. Key messages These findings suggest that women with endometriosis, especially those who achieved pregnancy via ART use, represent a high risk obstetric population requiring appropriate surveillance and management.

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Pregnancy Outcomes in Systemic Lupus Erythematosus Women

Sultan Qaboos University Medical Journal [SQUMJ] ◽

10.18295/squmj.2021.21.02.013 ◽

2021 ◽

Vol 21 (2) ◽

pp. e244-252

Author(s):

Nihal Al-Riyami ◽

Bushra Salman ◽

Amani Al-Rashdi ◽

Tamima Al-Dughaishi ◽

Rahma Al-Haddabi ◽

...

Keyword(s):

Systemic Lupus Erythematosus ◽

Preterm Birth ◽

Lupus Nephritis ◽

Lupus Erythematosus ◽

Pregnancy Outcomes ◽

Adverse Pregnancy Outcomes ◽

Intrauterine Fetal Death ◽

Systemic Lupus ◽

Adverse Pregnancy ◽

The Impact

Objectives: This study was conducted to assess pregnancy outcomes in women with systemic lupus erythematosus (SLE) in Oman. Methods: A retrospective cohort study of 149 pregnancies in 98 women with SLE was conducted over 10 years to evaluate the impact of clinical and laboratory parameters in predicting adverse pregnancy outcomes. Results: Mean maternal age was 30.6 ± 5 years ranging from 20–44 years, and the mean disease duration was 10 ± 5 years, ranging from 2–27 years. The most common maternal manifestations were joint pain in 36 (24.2%), lupus nephritis (LN) in 18 (12.08%), preeclampsia in 11 (7.4%), eclampsia in three (2%) and lupus flare in one pregnancy. The live birth rate was 139 (93.3%) with a mean gestational age of 36 ± 2 weeks ranging from 26–40 weeks. In total, 55 (39.6%) were preterm deliveries, six (4%) pregnancies ended in miscarriage, and four (2.7%) resulted in intrauterine fetal death. Intrauterine growth restriction was observed in 49 babies (35%). A significant association was found between hypertension (HTN) and miscarriage (P = 0.024) and preterm birth (P = 0.019). In addition, HTN was positively associated with preeclampsia (P = 0.004) and LN (P = 0.048). Antiphospholipid syndrome impacted preterm birth (P = 0.013) and postpartem haemorrhage (PPH) (P = 0.027) and was found to be a significant predictor for women developing deep vein thrombosis and pulmonary embolism (P <0.001 for both). Conclusion: Despite potential complications, most pregnancies complicated by SLE in Oman result in good outcomes. Adverse pregnancy outcomes, however, may still occur in women with SLE. In women with SLE, pregnancy planning, careful antenatal monitoring and efficient SLE treatment need to be undertaken for successful pregnancy outcomes. Keywords: Systemic Lupus Erythematosus; Pregnancy Outcomes; Lupus Nephritis; Antiphospholipid Antibodies; Neonatal Lupus.

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No Association Was Found Between Mild Iodine Deficiency During Pregnancy and Pregnancy Outcomes: a Follow-up Study Based on a Birth Registry

Biological Trace Element Research ◽

10.1007/s12011-021-03028-y ◽

2022 ◽

Author(s):

Xueying Cui ◽

Huiting Yu ◽

Zhengyuan Wang ◽

Hai Wang ◽

Zehuan Shi ◽

...

Keyword(s):

Preterm Birth ◽

Pregnant Women ◽

Iodine Deficiency ◽

Pregnancy Outcomes ◽

Monitoring Program ◽

Adverse Pregnancy Outcomes ◽

Birth Registry ◽

Adverse Pregnancy ◽

The Impact

Abstract Background Severe iodine deficiency during gestation is associated with adverse pregnancy outcomes; however, the impact of mild-to-moderate iodine deficiency, though prevalent in pregnancy, remains unclear. Methods We extracted follow-up data for 7435 pregnant women from a national iodine deficiency disorders monitoring program from 2016 to 2018 and a mother–child cohort study in 2017 based on a birth registry in Shanghai. Birth outcomes were collected from the registry. Spot urine and household salt samples were collected for iodine testing. Single-factor analysis and logistic regression were used to evaluate the association between maternal iodine status and pregnancy outcomes. Results The median urine iodine level in pregnant women was 137.5 μg/L (interquartile range 82.4–211.5), suggesting mild deficiency according to WHO standards. The incidence of pregnancy termination, preterm birth, congenital malformations, low birth weight, and cesarean section was 3.2%, 4.3%, 1.4%, 2.7%, and 45.2% in the mildly iodine-deficient group and 3.4%, 4.5%, 1.4%, 2.7%, and 44.5% in the normal group, respectively. After adjusting for maternal age and education, trimesters, and preterm birth rate in the general population, the odds ratios for any outcome did not differ significantly between the two groups. Conclusion The present study suggests that mild maternal iodine deficiency is not associated with adverse pregnancy outcomes.

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Association between Thiopurines Use and Pregnancy Outcomes in Female Patients with Inflammatory Bowel Disease: A Meta-analysis

Current Pharmaceutical Design ◽

10.2174/1381612826666200916144249 ◽

2020 ◽

Vol 26 ◽

Author(s):

Yang Zhang ◽

Dandan Li ◽

Heng Guo ◽

Weina Wang ◽

Xingang Li ◽

...

Keyword(s):

Inflammatory Bowel Disease ◽

Preterm Birth ◽

Spontaneous Abortion ◽

Bowel Disease ◽

Pregnancy Outcomes ◽

Congenital Malformations ◽

Meta Analysis ◽

Adverse Pregnancy Outcomes ◽

Inflammatory Bowel ◽

Adverse Pregnancy

Background: Conflicting data exist regarding the influence of thiopurines exposure on adverse pregnancy outcomes in female patients with inflammatory bowel disease (IBD). Objective: The aim of this study was to provide an up-to-date and comprehensive assessment of the safety of thiopurines in pregnant IBD women. Methods: All relevant articles reporting pregnancy outcomes in women with IBD received thiopurines during pregnancy were identified from the databases (PubMed, Embase, Cochrane Library, and ClinicalTrials.gov) with the publication data up to April 2020. Data of included studies were extracted to calculate the relative risk (RR) of multiple pregnancy outcomes: congenital malformations, low birth weight (LBW), preterm birth, small for gestational age (SGA), and spontaneous abortion. The meta-analysis was performed using the random-effects model. Results: Eight studies matched with the inclusion criteria and a total of 1201 pregnant IBD women who used thiopurines and 4189 controls comprised of women with IBD received drugs other than thiopurines during pregnancy were included. Statistical analysis results demonstrated that the risk of preterm birth was significantly increased in the thiopurine-exposed group when compared to IBD controls (RR, 1.34; 95% CI, 1.00-1.79; p=0.049; I 2 =41%), while no statistically significant difference was observed in the incidence of other adverse pregnancy outcomes. Conclusion: Thiopurines’ use in women with IBD during pregnancy is not associated with congenital malformations, LBW, SGA, or spontaneous abortion, but appears to have an association with an increased risk of preterm birth.

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Interpregnancy Body Mass Index Changes: Distribution and Impact on Adverse Pregnancy Outcomes in the Subsequent Pregnancy

American Journal of Perinatology ◽

10.1055/s-0038-1670634 ◽

2018 ◽

Vol 36 (05) ◽

pp. 517-521 ◽

Cited By ~ 3

Author(s):

Whitney Bender ◽

Adi Hirshberg ◽

Lisa Levine

Keyword(s):

Body Mass Index ◽

Preterm Birth ◽

Body Mass ◽

Pregnancy Outcomes ◽

Subsequent Pregnancy ◽

Adverse Pregnancy Outcomes ◽

Increased Risk ◽

History Of ◽

Index Changes ◽

Adverse Pregnancy

Objective To examine the change in body mass index (BMI) categories between pregnancies and its effect on adverse pregnancy outcomes. Study Design We performed a retrospective cohort study of women with two consecutive deliveries from 2005 to 2010. Analysis was limited to women with BMI recorded at <24 weeks for both pregnancies. Standard BMI categories were used. Adverse pregnancy outcomes included preterm birth at <37 weeks, intrauterine growth restriction (IUGR), pregnancy-related hypertension, and gestational diabetes mellitus (GDM). Women with increased BMI category between pregnancies were compared with those who remained in the same BMI category. Results In total, 537 women were included, of whom 125 (23%) increased BMI category. There was no association between increase in BMI category and risk of preterm birth, IUGR, or pregnancy-related hypertension. Women who increased BMI category had an increased odds of GDM compared with women who remained in the same BMI category (6.4 vs. 2.2%; p = 0.018). The increased risk remained after controlling for age, history of GDM, and starting BMI (adjusted odds ratio: 8.2; 95% confidence interval: 2.1–32.7; p = 0.003). Conclusion Almost one-quarter of women increased BMI categories between pregnancies. This modifiable risk factor has a significant impact on the risk of GDM.

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Association between neighbourhood deprivation, fetal growth, small-for-gestational age and preterm birth: a population-based prospective cohort study

BMJ Open ◽

10.1136/bmjopen-2021-049075 ◽

2021 ◽

Vol 11 (11) ◽

pp. e049075

Author(s):

Dionne V Gootjes ◽

Anke G Posthumus ◽

Vincent W V Jaddoe ◽

Eric A P Steegers

Keyword(s):

Risk Factors ◽

Cohort Study ◽

Preterm Birth ◽

Fetal Growth ◽

Gestational Age ◽

Pregnancy Outcomes ◽

First Trimester ◽

Adverse Pregnancy Outcomes ◽

Neighbourhood Deprivation ◽

Adverse Pregnancy

ObjectiveTo study the associations between neighbourhood deprivation and fetal growth, including growth in the first trimester, and adverse pregnancy outcomes.DesignProspective cohort study.SettingThe Netherlands, Rotterdam.Participants8617 live singleton births from the Generation R cohort study.ExpositionLiving in a deprived neighbourhood.Main outcome measuresFetal growth trajectories of head circumference, weight and length.Secondary outcomes measuresSmall-for-gestational age (SGA) and preterm birth (PTB).ResultsNeighbourhood deprivation was not associated with first trimester growth. However, a higher neighbourhood status score (less deprivation) was associated with increased fetal growth in the second and third trimesters (eg, estimated fetal weight; adjusted regression coefficient 0.04, 95% CI 0.02 to 0.06). Less deprivation was also associated with decreased odds of SGA (adjusted OR 0.91, 95% CI 0.86 to 0.97, p=0.01) and PTB (adjusted OR 0.89, 95% CI 0.82 to 0.96, p=0.01).ConclusionsWe found an association between neighbourhood deprivation and fetal growth in the second and third trimester pregnancy, but not with first trimester growth. Less neighbourhood deprivation is associated with lower odds of adverse pregnancy outcomes. The associations remained after adjustment for individual-level risk factors. This supports the hypothesis that living in a deprived neighbourhood acts as an independent risk factor for fetal growth and adverse pregnancy outcomes, above and beyond individual risk factors.

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Joint Modeling of Singleton Preterm Birth and Perinatal Death Using Birth Registry Cohort Data in Northern Tanzania

Frontiers in Pediatrics ◽

10.3389/fped.2021.749707 ◽

2021 ◽

Vol 9 ◽

Author(s):

Innocent B. Mboya ◽

Michael J. Mahande ◽

Joseph Obure ◽

Henry G. Mwambi

Keyword(s):

Preterm Birth ◽

Pregnancy Outcomes ◽

Perinatal Death ◽

Substantial Reduction ◽

Adverse Pregnancy Outcomes ◽

Birth Registry ◽

Cohort Data ◽

Northern Tanzania ◽

Management Of Complications ◽

Adverse Pregnancy

Understanding independent and joint predictors of adverse pregnancy outcomes is essential to inform interventions toward achieving sustainable development goals. We aimed to determine the joint predictors of preterm birth and perinatal death among singleton births in northern Tanzania based on cohort data from the Kilimanjaro Christian Medical Center (KCMC) zonal referral hospital birth registry between 2000 and 2017. We determined the joint predictors of preterm birth and perinatal death using the random-effects models to account for the correlation between these outcomes. The joint predictors of higher preterm birth and perinatal death risk were inadequate (<4) antenatal care (ANC) visits, referred for delivery, experiencing pre-eclampsia/eclampsia, postpartum hemorrhage, low birth weight, abruption placenta, and breech presentation. Younger maternal age (15–24 years), premature rupture of membranes, placenta previa, and male children had higher odds of preterm birth but a lessened likelihood of perinatal death. These findings suggest ANC is a critical entry point for delivering the recommended interventions to pregnant women, especially those at high risk of experiencing adverse pregnancy outcomes. Improved management of complications during pregnancy and childbirth and the postnatal period may eventually lead to a substantial reduction of adverse perinatal outcomes and improving maternal and child health.

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