Utility of Doppler parameters at 36–42 weeks’ gestation in the prediction of adverse perinatal outcomes in appropriate-for-gestational-age fetuses

Fetal growth restriction has been associated with an increased risk of adverse perinatal outcomes (APOs). We determined the importance of fetal growth detention (FGD) in late gestation for the occurrence of APOs in small-for-gestational-age (SGA) and appropriate-for-gestational-age (AGA) newborns. For this purpose, we analyzed a retrospective cohort study of 1067 singleton pregnancies. The newborns with higher APOs were SGA non-FGD and SGA FGD in 40.9% and 31.5% of cases, respectively, and we found an association between SGA non-FGD and any APO (OR 2.61; 95% CI: 1.35–4.99; p = 0.004). We did not find an increased APO risk in AGA FGD newborns (OR: 1.13, 95% CI: 0.80, 1.59; p = 0.483), except for cesarean delivery for non-reassuring fetal status (NRFS) with a decrease in percentile cutoff greater than 40 (RR: 2.41, 95% CI: 1.11–5.21) and 50 (RR: 2.93, 95% CI: 1.14–7.54). Conclusions: Newborns with the highest probability of APOs are SGA non-FGDs. AGA FGD newborns do not have a higher incidence of APOs than AGA non-FGDs, although with falls in percentile cutoff over 40, they have an increased risk of cesarean section due to NRFS. Further studies are warranted to detect these newborns who would benefit from close surveillance in late gestation and at delivery.

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Adjusting growth standards for fetal sex improves correlation of small babies with stillbirth and adverse perinatal outcomes: A state-wide population study

10.22541/au.163762183.31227763/v1 ◽

2021 ◽

Author(s):

Natasha Pritchard ◽

Susan Walker ◽

Stephen Tong ◽

Anthea C. Lindquist

Keyword(s):

Gestational Age ◽

Perinatal Outcomes ◽

Adverse Outcomes ◽

Fetal Sex ◽

Growth Standards ◽

Increased Risk ◽

Appropriate For Gestational Age ◽

Adverse Perinatal Outcomes ◽

Wide Population ◽

High Risk Cohort

Objective: Identify the proportion of infants reclassified if sex-specific birthweight charts were used, and if this reclassification has an impact on the correlation between birthweight centile and adverse perinatal outcome. Design: Retrospective cohort study Setting: Victoria, Australia. Population: All infants born from 2005-2015 (529,261) Methods: We applied GROW centiles, either adjusted or unadjusted for fetal sex. We compared proportions of small for gestational age (SGA, <10th centile) infants, then the populations of males considered small only by sex-specific charts and females considered small only by unadjusted charts. Main Outcome Measures: Stillbirth, combined perinatal mortality, NICU admissions, Apgars <7 at 5 minutes, emergency caesarean sections. Results: Of those <10th centile by unadjusted charts, 39.6% were male, and 60.5% female. Using sex-specific charts, 50.3% <10th centile were male and 49.7% female. 9,449 (19.2%) females that were SGA according to unadjusted charts were appropriate for gestational age (AGA,>10th-<90th centile) using sex-specific charts. These reclassified newborn females were not at increased risk of adverse outcomes compared with an AGA infant, but were at increased risk of being iatrogenically delivered for suspected growth restriction (RR 4.90, 95%CI 4.39–5.48). 8,048 male infants were reclassified as SGA by sex-specific charts (25% SGA increase). Compared with AGA infants, these reclassified male newborns were at greater risk of stillbirth (RR 1.94, 95%CI 1.30-2.90) and all other adverse perinatal outcomes. Conclusions: Sex-specific growth standards classify a new high-risk cohort of male infants as SGA, and exclude a cohort of females, whose risk is no greater than appropriately grown infants.

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Fetal growth velocity references from a Chinese population–based fetal growth study

BMC Pregnancy and Childbirth ◽

10.1186/s12884-021-04149-x ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Tianchen Wu ◽

Xiaoli Gong ◽

Yangyu Zhao ◽

Lizhen Zhang ◽

Yiping You ◽

...

Keyword(s):

Fetal Growth ◽

Gestational Age ◽

Growth Velocity ◽

Chinese Population ◽

Perinatal Outcomes ◽

Population Based ◽

Fetal Ultrasound ◽

Ultrasound Measurements ◽

Appropriate For Gestational Age ◽

Adverse Perinatal Outcomes

Abstract Background Fetal growth velocity standards have yet to be established for the Chinese population. This study aimed to establish such standards suitable for the Chinese population. Methods We performed a multicenter, population–based longitudinal cohort study including 9075 low–risk singleton pregnant women. Data were collected from the clinical records of 24 hospitals in 18 provinces of China. Demographic characteristics, reproductive history, fetal ultrasound measurements, and perinatal outcome data were collected. The fetal ultrasound measurements included biparietal diameter (BPD), abdominal circumference (AC), head circumference (HC), and femur diaphysis length (FDL). We used linear mixed models with cubic splines to model the trajectory of four ultrasound parameters and estimate fetal weight. Fetal growth velocity was determined by calculating the first derivative of fetal size curves. We also used logistic regression to estimate the association between fetal growth velocities in the bottom 10th percentile and adverse perinatal outcomes. Results Fetal growth velocity was not consistent over time or among individuals. The estimated fetal weight (EFW) steadily increased beginning at 12 gestational weeks and peaked at 35 gestational weeks. The maximum velocity was 211.71 g/week, and there was a steady decrease in velocity from 35 to 40 gestational weeks. The four ultrasound measurements increased in the early second trimester; BPD and HC peaked at 13 gestational weeks, AC at 14 gestational weeks, and FDL at 15 gestational weeks. BPD and HC also increased from 19 to 24 and 19 to 21 gestational weeks, respectively. EFW velocity in the bottom 10th percentile indicated higher risks of neonatal complications (odds ratio [OR] = 2.23, 95% confidence interval [CI]: 1.79–2.78) and preterm birth < 37 weeks (OR = 3.68, 95% CI: 2.64–5.14). Sensitivity analyses showed that EFW velocity in the bottom 10th percentile was significantly associated with more adverse pregnancy outcomes for appropriate–for–gestational age neonates. Conclusions We established fetal growth velocity curves for the Chinese population based on real–world clinical data. Our findings demonstrated that Chinese fetal growth patterns are somewhat different from those of other populations. Fetal growth velocity could provide more information to understand the risk of adverse perinatal outcomes, especially for appropriate–for–gestational age neonates.

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Comparison of adverse perinatal outcomes between Asians and Caucasians: a population-based retrospective cohort study in Ontario

BMC Pregnancy and Childbirth ◽

10.1186/s12884-020-03467-w ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Na Zeng ◽

Erica Erwin ◽

Wendy Wen ◽

Daniel J. Corsi ◽

Shi Wu Wen ◽

...

Keyword(s):

Cohort Study ◽

Birth Weight ◽

Preterm Birth ◽

Cesarean Section ◽

Gestational Age ◽

Retrospective Cohort Study ◽

Retrospective Cohort ◽

Perinatal Outcomes ◽

Population Based ◽

Adverse Perinatal Outcomes

Abstract Background Racial disparities in adverse perinatal outcomes have been studied in other countries, but little has been done for the Canadian population. In this study, we sought to examine the disparities in adverse perinatal outcomes between Asians and Caucasians in Ontario, Canada. Methods We conducted a population-based retrospective cohort study that included all Asian and Caucasian women who attended a prenatal screening and resulted in a singleton birth in an Ontario hospital (April 1st, 2015-March 31st, 2017). Generalized estimating equation models were used to estimate the independent adjusted relative risks and adjusted risk difference of adverse perinatal outcomes for Asians compared with Caucasians. Results Among 237,293 eligible women, 31% were Asian and 69% were Caucasian. Asians were at an increased risk of gestational diabetes mellitus, placental previa, early preterm birth (< 32 weeks), preterm birth, emergency cesarean section, 3rd and 4th degree perineal tears, low birth weight (< 2500 g, < 1500 g), small-for-gestational-age (<10th percentile, <3rd percentile), neonatal intensive care unit admission, and hyperbilirubinemia requiring treatment, but had lower risks of preeclampsia, macrosomia (birth weight > 4000 g), large-for-gestational-age neonates, 5-min Apgar score < 7, and arterial cord pH ≤7.1, as compared with Caucasians. No difference in risk of elective cesarean section was observed between Asians and Caucasians. Conclusion There are significant differences in several adverse perinatal outcomes between Asians and Caucasians. These differences should be taken into consideration for clinical practices due to the large Asian population in Canada.

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EP18.19: Abdominal circumference growth velocity as an independent predictor of small‐for‐gestational‐age fetuses and the relationship with adverse perinatal outcomes

Ultrasound in Obstetrics and Gynecology ◽

10.1002/uog.21496 ◽

2019 ◽

Vol 54 (S1) ◽

pp. 348-349

Author(s):

N. Caner ◽

A. Serrano ◽

L. Perdomo ◽

M. Echevarria ◽

S. García ◽

...

Keyword(s):

Gestational Age ◽

Small For Gestational Age ◽

Growth Velocity ◽

Independent Predictor ◽

Perinatal Outcomes ◽

Abdominal Circumference ◽

Adverse Perinatal Outcomes ◽

The Relationship

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Doppler measurements of both umbilical arteries do not improve predictive value for adverse perinatal outcomes in small-for-gestational age fetuses

European Journal of Obstetrics & Gynecology and Reproductive Biology ◽

10.1016/j.ejogrb.2018.10.040 ◽

2018 ◽

Vol 231 ◽

pp. 169-173

Author(s):

Charlotte A. Vollgraff Heidweiller-Schreurs ◽

Ninieck E. van Maasakker ◽

Peter M. van de Ven ◽

Christianne J.M. de Groot ◽

Caroline J. Bax ◽

...

Keyword(s):

Gestational Age ◽

Small For Gestational Age ◽

Predictive Value ◽

Perinatal Outcomes ◽

Adverse Perinatal Outcomes ◽

Umbilical Arteries

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Perinatal Outcomes of Fetuses with Early Growth Restriction, Late Growth Restriction, Small for Gestational Age, and Adequate for Gestational Age

Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics ◽

10.1055/s-0039-1697987 ◽

2019 ◽

Vol 41 (12) ◽

pp. 688-696

Author(s):

Quênya Antunes Silveira Inácio ◽

Edward Araujo Júnior ◽

Luciano Marcondes Machado Nardozza ◽

Caetano Galvão Petrini ◽

Victor Paranaíba Campos ◽

...

Keyword(s):

Respiratory Distress ◽

Fetal Growth ◽

Gestational Age ◽

Late Onset ◽

Neonatal Resuscitation ◽

Perinatal Outcomes ◽

Growth Restriction ◽

Adverse Perinatal Outcomes ◽

Gestational Age At Birth ◽

Age At Birth

Abstract Objective To evaluate the association between early-onset fetal growth restriction (FGR), late-onset FGR, small for gestational age (SGA) and adequate for gestational age (AGA) fetuses and adverse perinatal outcomes. Methods This was a retrospective longitudinal study in which 4 groups were evaluated: 1 — early-onset FGR (before 32 weeks) (n = 20), 2 — late-onset FGR (at or after 32 weeks) (n = 113), 3 — SGA (n = 59), 4 — AGA (n = 476). The Kaplan-Meier curve was used to compare the time from the diagnosis of FGR to birth. Logistic regression was used to determine the best predictors of adverse perinatal outcomes in fetuses with FGR and SGA. Results A longer time between the diagnosis and birth was observed for AGA than for late FGR fetuses (p < 0.001). The model including the type of FGR and the gestational age at birth was significant in predicting the risk of hospitalization in the neonatal intensive care unit (ICU) (p < 0.001). The model including only the type of FGR predicted the risk of needing neonatal resuscitation (p < 0.001), of respiratory distress (p < 0.001), and of birth at < 32, 34, and 37 weeks of gestation, respectively (p < 0.001). Conclusion Fetal growth restriction and SGA were associated with adverse perinatal outcomes. The type of FGR at the moment of diagnosis was an independent variable to predict respiratory distress and the need for neonatal resuscitation. The model including both the type of FGR and the gestational age at birth predicted the risk of needing neonatal ICU hospitalization.

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Active Versus Expectant Management for Preterm Premature Rupture of Membranes at 34–36 Weeks of Gestation and the Associated Adverse Perinatal Outcomes

Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics ◽

10.1055/s-0040-1718954 ◽

2020 ◽

Vol 42 (11) ◽

pp. 717-725

Author(s):

Malú Flôres Ferraz ◽

Thaísa De Souza Lima ◽

Sarah Moura Cintra ◽

Edward Araujo Júnior ◽

Caetano Galvão Petrini ◽

...

Keyword(s):

Gestational Age ◽

Perinatal Outcomes ◽

Expectant Management ◽

Premature Rupture Of Membranes ◽

Premature Rupture ◽

Preterm Premature Rupture ◽

Management Group ◽

Group I ◽

Adverse Perinatal Outcomes ◽

Group Ii

Abstract Objective To compare the type of management (active versus expectant) for preterm premature rupture of membranes (PPROM) between 34 and 36 + 6 weeks of gestation and the associated adverse perinatal outcomes in 2 tertiary hospitals in the southeast of Brazil. Methods In the present retrospective cohort study, data were obtained by reviewing the medical records of patients admitted to two tertiary centers with different protocols for PPROM management. The participants were divided into two groups based on PPROM management: group I (active) and group II (expectant). For statistical analysis, the Student t-test, the chi-squared test, and binary logistic regression were used. Results Of the 118 participants included, 78 underwent active (group I) and 40 expectant management (group II). Compared with group II, group I had significantly lower mean amniotic fluid index (5.5 versus 11.3 cm, p = 0.002), polymerase chain reaction at admission (1.5 versus 5.2 mg/dl, p = 0.002), time of prophylactic antibiotics (5.4 versus 18.4 hours, p < 0.001), latency time (20.9 versus 33.6 hours, p = 0.001), and gestational age at delivery (36.5 versus 37.2 weeks, p = 0.025). There were no significant associations between the groups and the presence of adverse perinatal outcomes. Gestational age at diagnosis was the only significant predictor of adverse composite outcome (x2 [1] = 3.1, p = 0.0001, R2 Nagelkerke = 0.138). Conclusion There was no association between active versus expectant management in pregnant women with PPROM between 34 and 36 + 6 weeks of gestation and adverse perinatal outcomes.

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Placental Weight for Gestational Age and Adverse Perinatal Outcomes

Obstetrics and Gynecology ◽

10.1097/aog.0b013e318253d3df ◽

2012 ◽

Vol 119 (6) ◽

pp. 1251-1258 ◽

Cited By ~ 63

Author(s):

Jennifer A. Hutcheon ◽

Helen McNamara ◽

Robert W. Platt ◽

Alice Benjamin ◽

Michael S. Kramer

Keyword(s):

Gestational Age ◽

Perinatal Outcomes ◽

Placental Weight ◽

Adverse Perinatal Outcomes

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Effects and outcomes of septostomy in twin-to-twin transfusion syndrome after fetoscopic laser therapy

BMC Pregnancy and Childbirth ◽

10.1186/s12884-019-2555-5 ◽

2019 ◽

Vol 19 (1) ◽

Cited By ~ 1

Author(s):

Wen-Fang Li ◽

An-Shine Chao ◽

Shuenn-Dyh Chang ◽

Po-Jen Cheng ◽

Lan-Yan Yang ◽

...

Keyword(s):

Laser Therapy ◽

Gestational Age ◽

Odds Ratio ◽

Case Series ◽

Perinatal Outcomes ◽

Neonatal Brain ◽

Brain Image ◽

Fetal Survival ◽

Gestational Age At Delivery ◽

Adverse Perinatal Outcomes

Abstract Background To evaluate the incidence and outcomes of septostomy in twin-to-twin transfusion syndrome (TTTS) after fetoscopic laser therapy. Methods A retrospective analysis of TTTS postlaser septostomy between 2005 and 2018 was performed. Postlaser septostomy was diagnosed using both (1) a free-floating intertwin membrane flap visible on ultrasound examination and (2) the rapid equalization of amniotic fluid maximum vertical pocket in the donor and recipient amniotic sacs observed after laser therapy. Perinatal survival, neonatal brain image anomaly, gestational age at operation and birth, incidence of premature rupture of membranes (PROM) within 3 weeks after operation, pseudoamniotic band syndrome, and cord entanglement were evaluated. Results In the 159 TTTS cases included, 12 had postlaser septostomy. Relative to the group without septostomy, the septostomy group had a lower total fetal survival rate (54.2% vs 73.6%, p = 0.041), an earlier mean gestational age at delivery (27.8 vs 34.4 weeks, p = 0.009), a higher risk of PROMs within 3 weeks after operation (33.3% vs 5.4%, p = 0.004), a higher cord entanglement rate (16.7% vs 0%, p = 0.005), and a higher brain image anomaly rate (23.0% [3/13] vs 5.0% [11/218], p = 0.035). After considering the severe Quintero stages (stage III and IV), postlaser septostomy was the only variable [p = 0.003, odds ratio = 5.1] to predict neonatal brain image anomaly. Postlaser septostomy combined with severe Quintero stages could predict PROMs within 3 weeks after laser therapy [p = 0.001, odds ratio = 14.1 and p = 0.03, odds ratio = 5.4, respectively] and delivery before the gestational age of 28 weeks [p = 0.017, odds ratio = 4.5 and p = 0.034, odds ratio = 2.3, respectively]. The risk of pseudoamniotic band syndrome was not increased by postlaser septostomy in this case series. Conclusions Postlaser septostomy in TTTS was associated with poorer fetal survival and more adverse perinatal outcomes even after considering severe Quintero stages before laser therapy. Efforts should be made to prevent septostomy during laser therapy, and septostomy as the primary method to treat TTTS is not advisable.

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