Serum Urea Acid and Urea Nitrogen Levels are Risk Factors for Maternal and Fetal Outcomes of Pregnancy: A Retrospective Cohort Study

Abstract Background In recent years, results on the association between serum uric acid (UA) and pregnancy outcomes have been inconsistent, and the association between urea nitrogen (UN) and adverse pregnancy outcomes in normal pregnant women has not been reported. Thus, we examined the association of UA and UN levels during gestation with the risk of adverse pregnancy outcomes in a relatively large population. Methods A total of 1602 singleton mothers were included. Both UA and UN levels were collected and measured during the second (16–18th week) and third (28–30th week) trimesters of gestation respectively. Statistical analysis was performed using multivariate logistic regression. Results After adjustment, the highest quartile of UA in the third trimester increased the risk of premature rupture of membranes (PROM) and small for gestational age infants (SGA) by 48% (odds ratio [OR]: 1.48, 95% confidence interval [CI]: 1.04–2.10) and 99% (95% CI: 1.01–3.89) compared to those in the lowest quartile. The adjusted OR (95% CI) in the highest quartile of UN for the risk of SGA was 2.18 (95% CI: 1.16–4.13) and 2.29 (95% CI: 1.20–4.36) in the second and third trimester, respectively. In the second trimester, when UA and UN levels were both in the highest quartile, the adjusted OR (95% CI) for the risk of SGA was 2.51 (95% CI: 1.23–5.10). In the third trimester, when the group 1 (both indicators are in the first quartile) was compared, the adjusted ORs (95% CI) for the risk of SGA were 1.98 (95% CI: 1.22–3.23) and 2.31 (95% CI: 1.16–4.61) for group 2 (UA or UN is in the second or third quartile) and group 3 (both indicators are in the fourth quartile), respectively. Conclusions Higher UA and UN levels increased the risk of maternal and fetal outcomes. The simultaneous elevation of UA and UN levels was a high-risk factors for the development of SGA, regardless of whether they were in the second or third trimester.

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High Hemoglobin Level is a Risk Factor for Maternal and Fetal Outcomes of Pregnancy in Chinese Women: A Retrospective Cohort Study

10.21203/rs.3.rs-793648/v1 ◽

2021 ◽

Author(s):

Lanlan Wu ◽

Ruifang Sun ◽

Yao Liu ◽

Zengyou Liu ◽

Hengying Chen ◽

...

Keyword(s):

Pregnancy Outcomes ◽

Chinese Women ◽

Adverse Pregnancy Outcomes ◽

Multivariate Logistic Regression ◽

Third Trimester ◽

Low Birth Weight Infants ◽

The Third ◽

Increased Risk ◽

Adverse Pregnancy ◽

Multivariable Adjustment

Abstract Background To examine the association of hemoglobin (Hb) levels during gestation with the risk of selected adverse pregnancy outcomes in Chinese women. Methods A total of 1911 singleton mothers were included. Hb levels were measured during the second (16-18th weeks) and third (28-30th weeks) trimesters of pregnancy, and pregnancy outcomes were followed. Statistical analysis was performed using multivariate logistic regression. Results After multivariable adjustment, Hb levels > 130 g/L in the second trimester increased the risk of low-birth-weight infants (LBW) (odds ratio [OR], 2.54; 95% confidence interval [CI], 1.12–5.77). In the third trimester of gestation, compared with women whose Hb levels between 110–119 g/L, women with Hb levels > 130 g/L had an increased risk of LBW (OR, 2.17; 95% CI, 1.05–4.48) and small-for-gestational-age infants (SGA) (OR, 1.98; 95% CI, 1.04–3.78). In addition, maternal Hb levels of < 110 g/L or > 130 g/L at the second week that were restored vs not restored in the third trimester decreased the risk of preterm birth (PTB) by 80% (95% CI, 0.07–0.58) and 86% (95% CI, 0.03–0.84), respectively. Conclusion Maternal Hb > 130 g/L was associated with increased risk of adverse pregnancy outcomes. Reduction of PTB risk was observed with correction of Hb level during the third trimester.

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Sleep disordered breathing in pregnancy

Breathe ◽

10.1183/20734735.009215 ◽

2015 ◽

Vol 11 (4) ◽

pp. 268-277 ◽

Cited By ~ 25

Author(s):

Bilgay Izci Balserak

Keyword(s):

Risk Factors ◽

Pregnancy Outcomes ◽

Sleep Disordered Breathing ◽

Adverse Pregnancy Outcomes ◽

List Type ◽

Management Options ◽

Fetal Outcomes ◽

Adverse Pregnancy ◽

In Pregnancy ◽

Disordered Breathing

Key pointsSleep disordered breathing (SDB) is common and the severity increases as pregnancy progresses.Frequent snoring, older age and high pre-pregnancy body mass index (>25 kg⋅m−2) could be reliable indicators for SDB in early pregnancy.SDB screening tools, including questionnaires, used in the nonpregnant population have poor predictive ability in pregnancy.Accumulating evidence suggests that SDB during pregnancy may be associated with increased risk of adverse pregnancy outcomes, including gestational diabetes and pre-eclampsia. However, the results should be interpreted cautiously because several studies failed to adjust for potential maternal confounders and have other study limitations.There are no pregnancy-specific practice guidelines for SDB treatment. Many clinicians and practices follow recommendations for the treatment in the general population. Women with pre-existing SDB might need to be reassessed, particularly after the sixth month of pregnancy, because symptoms can worsen with nasal congestion and weight gain.Educational aimsTo highlight the prevalence and severity of sleep disordered breathing (SDB) in the pregnant population.To inform readers about risk factors for SDB in pregnancy.To explore the impact of SDB on adverse maternal and fetal outcomes, and biological pathways for associated adverse maternal and fetal outcomes.To introduce current management options for SDB in pregnancy, including medical and behavioural approaches.Sleep disordered breathing (SDB) is very common during pregnancy, and is most likely explained by hormonal, physiological and physical changes. Maternal obesity, one of the major risk factors for SDB, together with physiological changes in pregnancy may predispose women to develop SDB. SDB has been associated with poor maternal and fetal outcomes. Thus, early identification, diagnosis and treatment of SDB are important in pregnancy. This article reviews the pregnancy-related changes affecting the severity of SDB, the epidemiology and the risk factors of SDB in pregnancy, the association of SDB with adverse pregnancy outcomes, and screening and management options specific for this population.

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Glycated albumin in pregnancy: reference intervals establishment and its predictive value in adverse pregnancy outcomes

BMC Pregnancy and Childbirth ◽

10.1186/s12884-019-2704-x ◽

2020 ◽

Vol 20 (1) ◽

Cited By ~ 1

Author(s):

Ying Dong ◽

Yanhong Zhai ◽

Jing Wang ◽

Yi Chen ◽

Xin Xie ◽

...

Keyword(s):

Gestational Age ◽

Pregnancy Outcomes ◽

Predictive Value ◽

Glycated Albumin ◽

Reference Intervals ◽

Adverse Pregnancy Outcomes ◽

Third Trimester ◽

The Third ◽

Adverse Pregnancy ◽

In Pregnancy

Abstract Background Many efforts have been focused on the alternative glycemic marker glycated albumin (GlyA) and its application in pregnancy during which profound physiological changes take place. Our objective was to determine the reference intervals (RIs) of GlyA in healthy Chinese pregnant women and to assess the predictive value of serum GlyA in adverse pregnancy outcomes. Methods Totally 421 healthy subjects including 137 in the first trimester, 152 in the second trimester, and 132 in the third trimester were enrolled from March to July 2019, for the purpose of establishing the trimester-specific RIs of GlyA. In addition, 67 pregnant women diagnosed with GDM were enrolled at 24–28 weeks of gestation. The diagnostic value of GlyA for GDM patients was evaluated and compared with that of fasting plasma glucose (FPG) at 24–28 weeks of gestation. The association between GlyA in the late pregnancy and the adverse pregnancy outcomes was analyzed with the data collected from January to June 2018 at our hospital. Results The estimated RIs of GlyA in present study were 11.26–15.10%, 10.04–13.50%, and 9.76–13.09% in the first, second, and third trimesters respectively. The areas under receiver operating characteristic (ROC) curves were 0.503 for GlyA and 0.705 for FPG. More importantly, the GlyA level in the third trimester was not more elevated in the patients with adverse pregnancy outcomes including large for gestational age (LGA), preterm delivery, hypertension and preeclampsia (PE). The exception was made with the GDM patients who suffered from postpartum hemorrhage and had significantly higher GlyA levels than the control group. Conclusions Our results showed that the GlyA was continuously decreased as the gestational age went up. The GlyA testing has limited value in diagnosing GDM and predicting adverse pregnancy outcomes.

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Impact of Blood Urea Nitrogen and Creatinine Levels on Maternal and Fetal Outcomes of Pregnancy: a Retrospective Cohort Study

10.21203/rs.3.rs-379457/v1 ◽

2021 ◽

Author(s):

Guifang Deng ◽

Lanlan Wu ◽

Yao Liu ◽

Zengyou Liu ◽

Hengying Chen ◽

...

Keyword(s):

Logistic Regression ◽

Cohort Study ◽

Blood Urea Nitrogen ◽

Retrospective Cohort Study ◽

Pregnancy Outcomes ◽

Retrospective Cohort ◽

Fetal Outcomes ◽

Urea Nitrogen ◽

The Third ◽

Fourth Quartile

Abstract Background: Blood urea nitrogen (BUN) and creatinine (SCr) are associated with gestational diabetes mellitus (GDM). However, there were limited data in the literature on the influence of BUN and SCr on maternal and fetal outcomes of pregnancy. We aimed to examine the association of BUN and SCr levels during gestation with the risk of selected adverse pregnancy outcomes.Methods: This retrospective cohort study included 1606 singleton mothers aged 22-44 years. Both BUN and SCr levels were collected and measured during the second (16-18th week), third (28-30th week) trimesters of gestation respectively and followed up pregnancy outcomes. Statistical analysis was used multivariate logistic regression. Results: In the multivariate adjusted logistic regression model, the highest level of SCr in the second trimester increased the risk of PROM by 45% (95% CI, 1.01-2.09). In the third trimester of gestation, compared with those in the lowest quartile, BUN levels in the highest quartile decreased the risk of macrosomia and LGA by 60%(95% CI, 0.20-0.78), 66%(95% CI, 0.21,0.55) , respectively, and increased the risk of SGA by 137%(1.06, 5.31), 186%(1.29,6.34) in the third and fourth quartiles, respectively. The adjusted OR (95%CI) for macrosomia in the fourth quartile was 0.46 (0.24, 0.87), for SGA in the third quartiles was 2.36 (1.10, 5.10), and for LGA in the fourth quartile was 0.61 (0.41,0.91) compared with those in the first quartile of SCr levels. The elevated changes of BUN (> 0.64mmol/L) was the risk factor of SGA (OR: 2.11, 95%CI: 1.03,4.32).Conclusion: Higher BUN and SCr levels during the 28-30th week of gestation even those towards the upper limit of the normal range can act as a warning sign of the impending SGA. Elevated changes of BUN and SCr during pregnancy also associated with the lower birth weight.

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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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Abstract 376: Adverse Pregnancy Outcomes and Cardiovascular Risks Multi-disciplinary Awareness Project

Circulation Cardiovascular Quality and Outcomes ◽

10.1161/hcq.13.suppl_1.376 ◽

2020 ◽

Vol 13 (Suppl_1) ◽

Author(s):

Venkata Sai Gogineni ◽

Ki Park ◽

Denise Manfrini ◽

Robert Egerman ◽

Sharon Aroda ◽

...

Keyword(s):

Risk Factors ◽

Pregnancy Outcomes ◽

Descriptive Analysis ◽

Primary Objective ◽

Adverse Pregnancy Outcomes ◽

Cardiovascular Risks ◽

Cvd Risk ◽

Adverse Pregnancy ◽

Traditional Risk Factors

Background: Cardiovascular disease (CVD) remains the number one cause of death amongst women. There has been much effort put forth over the past decade in reducing both the incidence and prevalence of this disease burden through screening and treating the traditional risk factors. Recent guidelines have shown that adverse pregnancy outcomes (APOs), including pre-eclampsia (PEC), gestational diabetes mellitus (GDM) and pre-term birth (PTB) have been associated with future maternal CVD risk. Much of the current literature focuses almost exclusively on PEC. Our investigation is more comprehensive, covering not only these other APOs but assessing whether providers of multiple specialties in our community are aware of the APO to CVD risk association. The primary objective of this study was to investigate if there exist any knowledge gaps regarding the progression from APO to CVD and if this knowledge varies by specialty. Methods: An anonymous voluntary survey through REDCap© was sent to providers in the fields of Internal medicine (IM, 21%), Family medicine (FM, 26%), Obstetrics-Gynecology (Ob-Gyn, 23%) and Cardiology (30%) who have been in practice for greater than five years in our local Gainesville community. This project was registered as a QI project and descriptive analysis was used to examine the responses. Results: A total of 53 providers responded to the survey. Despite having the majority of patients being women, Ob-Gyn was the least likely amongst all specialties to routinely screen for CV risk factors. However, when addressed, they were the most likely to ask about APOs. Cardiologists, despite declaring to be aware of the association between APOs and CV risk, were least likely to ask about APOs. All specialties recognized PEC and GDM as APOs linked to long-term maternal CV risk but failed to associate PTB as an APO. The majority of providers amongst IM, FM, and Cardiology did not ask about APOs and lacked the knowledge of how often to appropriately screen for secondary risk factors associated with APOs. Additionally, these providers outright admitted that they are not familiar with the current AHA and/or ACOG guidelines for screening and follow-up. Conclusion: Descriptive statistical analysis of our data suggests that there exists a notable knowledge gap between all four specialties investigated in our survey. Education concerning the link between APOs and future maternal CV risk is needed amongst all specialties, especially amongst the providers in Cardiology, IM, and FM. Targeted efforts at our institution to improve awareness of all APOs, their associated secondary risk factors, and appropriate screening is required in all specialties to help reduce CVD morbidity and mortality.

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