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Fan YW, Zhang YJ, Wen HM, Yan H, Shen W, Ding YQ, Long YF, Zhang ZG, Li GF, Jiang H, Rao HP, Qiu JW, Wei X, Zhang YY, Zeng JB, Zhao CL, Xu WP, Wang F, Yuan L, Yang XF, Li W, Lin NY, Chen Q, Xia CS, Zhong XQ, Cui QL. [Risk factors for bronchopulmonary dysplasia in twin preterm infants: a multicenter study]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2024; 26:611-618. [PMID: 38926378 DOI: 10.7499/j.issn.1008-8830.2312005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
OBJECTIVES To investigate the risk factors for bronchopulmonary dysplasia (BPD) in twin preterm infants with a gestational age of <34 weeks, and to provide a basis for early identification of BPD in twin preterm infants in clinical practice. METHODS A retrospective analysis was performed for the twin preterm infants with a gestational age of <34 weeks who were admitted to 22 hospitals nationwide from January 2018 to December 2020. According to their conditions, they were divided into group A (both twins had BPD), group B (only one twin had BPD), and group C (neither twin had BPD). The risk factors for BPD in twin preterm infants were analyzed. Further analysis was conducted on group B to investigate the postnatal risk factors for BPD within twins. RESULTS A total of 904 pairs of twins with a gestational age of <34 weeks were included in this study. The multivariate logistic regression analysis showed that compared with group C, birth weight discordance of >25% between the twins was an independent risk factor for BPD in one of the twins (OR=3.370, 95%CI: 1.500-7.568, P<0.05), and high gestational age at birth was a protective factor against BPD (P<0.05). The conditional logistic regression analysis of group B showed that small-for-gestational-age (SGA) birth was an independent risk factor for BPD in individual twins (OR=5.017, 95%CI: 1.040-24.190, P<0.05). CONCLUSIONS The development of BPD in twin preterm infants is associated with gestational age, birth weight discordance between the twins, and SGA birth.
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Affiliation(s)
- Yu-Wei Fan
- Department of Pediatrics, Third Affiliated Hospital of Guangzhou Medical University/Guangdong Provincial Key Laboratory of Major Obstetric Diseases/Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology/Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangzhou 510150, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Qian Chen
- Department of Pediatrics, Third Affiliated Hospital of Guangzhou Medical University/Guangdong Provincial Key Laboratory of Major Obstetric Diseases/Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology/Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangzhou 510150, China
| | - Chang-Shun Xia
- Department of Pediatrics, Third Affiliated Hospital of Guangzhou Medical University/Guangdong Provincial Key Laboratory of Major Obstetric Diseases/Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology/Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangzhou 510150, China
| | - Xin-Qi Zhong
- Department of Pediatrics, Third Affiliated Hospital of Guangzhou Medical University/Guangdong Provincial Key Laboratory of Major Obstetric Diseases/Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology/Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangzhou 510150, China
| | - Qi-Liang Cui
- Department of Pediatrics, Third Affiliated Hospital of Guangzhou Medical University/Guangdong Provincial Key Laboratory of Major Obstetric Diseases/Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology/Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangzhou 510150, China
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Yang L, Zhou Y, Qiu J, Lin N, Gu N, Dai Y. Birth weight discordance and adverse neonatal outcomes in appropriately grown premature twins. Heliyon 2024; 10:e27057. [PMID: 38463868 PMCID: PMC10920362 DOI: 10.1016/j.heliyon.2024.e27057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 02/19/2024] [Accepted: 02/23/2024] [Indexed: 03/12/2024] Open
Abstract
Objective This study aimed to analyze the clinical characteristics of birth weight discordant twins (BWDT) who were premature and appropriate-for-gestational-age or large-for-gestational-age. Additionally, it assessed the impact of birth weight discordance on the prognosis of appropriately grown premature twins, and investigated the effect of maternal factors on neonatal outcomes. Study design This retrospective cohort study included twins who were born alive after preterm labor at the Nanjing Drum Tower Hospital from January 2018 to December 2021, along with their mothers. Twins were arranged into discordant and concordant groups according to intertwin birth weight discordance, followed by the analysis of the clinical characteristics of mothers and the prognosis of neonates. Results A total of 585 mothers and 1170 neonates were included, with 47 mothers and 94 neonates in the discordant group. The incidence of birth weight discordance was 8.0% (94/1,170) in appropriately grown premature twins. The incidence of complications (43.2% vs. 21.8%) and transfer to the neonatal intensive care unit (NICU) (53.2% vs. 29.2%) was higher in the discordant group than in the concordant group (p < 0.05). Furthermore, the incidence of infectious diseases (36.7% vs. 19.4%), necrotizing enterocolitis (7.6% vs. 1.6%), and oxygen therapy rate (22.8% vs. 12.8%) were statistically significantly higher in the discordant group than in the concordant group (p < 0.05). Conclusion Birth weight discordance remains a high-risk factor for complications and transfer to the NICU in appropriately grown premature twins. It is important to pay attention to birth weight discordance when the outcomes of twins are assessed.
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Affiliation(s)
- Ling Yang
- Department of Neonatology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, China
| | - Yan Zhou
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, China
| | - Jie Qiu
- Department of Neonatology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, China
| | - Nacheng Lin
- Department of Neonatology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, China
| | - Ning Gu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, China
| | - Yimin Dai
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, China
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Zhu J, Zhang J, Wu Y, Gao L, Zhao X, Cheng W, Wang Y. Intertwin growth discordance throughout gestation and hypertensive disorders of pregnancy. Am J Obstet Gynecol 2022:S0002-9378(22)02178-0. [PMID: 36403860 DOI: 10.1016/j.ajog.2022.11.1290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/13/2022] [Accepted: 11/15/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Previous studies have established the association between intertwin birthweight discordance and hypertensive disorders of pregnancy. However, longitudinal fetal size discordance concerning gestational hypertension or preeclampsia remains unclear. OBJECTIVE This study aimed to compare the patterns of estimated fetal weight discordance throughout gestation among normotensive women, women with gestational hypertension, and women with preeclampsia and to evaluate the association between crown-rump length discordance at 11 to 14 weeks of gestation and hypertensive disorders of pregnancy. STUDY DESIGN This was a retrospective cohort study of women with twin pregnancies who had antenatal care visits and delivered at a tertiary hospital between January 2013 and June 2021. The crown-rump length was measured at 11 to 14 weeks of gestation. Estimated fetal weight was calculated based on ultrasound examinations of fetal biometrics at 16 to 18, 20 to 24, 28 to 32, and ≥34 weeks of gestation, respectively. Crown-rump length and estimated fetal weight discordances were calculated: (larger crown-rump length - smaller crown-rump length)/larger crown-rump length × 100% and (larger estimated fetal weight - smaller estimated fetal weight)/larger estimated fetal weight × 100%, respectively. Multiple imputation was used to handle missing data, and all models accounted for the imputation. Multilevel model analysis was used to compare the differences in estimated fetal weight discordances throughout gestation among normotensive women, women with gestational hypertension, and women with preeclampsia. Generalized linear models were used to evaluate the association between crown-rump length discordance and hypertensive disorders of pregnancy, assuming a Poisson distribution. The possible nonlinear relationship between continuous crown-rump length discordance and hypertensive disorders of pregnancy was examined by generalized additive models. All analyses were stratified by chorionicity. RESULTS Of the 3280 women with twin pregnancies who met the inclusion criteria, 187 (5.7%) developed gestational hypertension, and 436 (13.3%) developed preeclampsia, including 125 (3.8%) early-onset preeclampsia and 311 (9.5%) late-onset preeclampsia. In women with dichorionic twin pregnancies, compared with normotensive women, a substantial progression of estimated fetal weight discordance throughout pregnancy was identified in women who developed preeclampsia, and a large progression of estimated fetal weight discordance in late pregnancy was identified in women who developed gestational hypertension. In women with monochorionic twin pregnancies, estimated fetal weight discordances were more progressive from 20 to 24 weeks of gestation onward in women who developed preeclampsia than in normotensive women. Crown-rump length discordance at 11 to 14 weeks of gestation was associated with an increased risk of preeclampsia (relative risk, 1.03; 95% confidence interval, 1.00-1.05), particularly early-onset preeclampsia (relative risk, 1.09; 95% confidence interval, 1.04-1.13). A crown-rump length discordance of ≥10% had 1.2 times the increased risk of developing early-onset preeclampsia (relative risk, 2.27; 95% confidence interval, 1.28-4.03). This association was identified in dichorionic twins, but not in monochorionic twins. CONCLUSION Our study demonstrated distinct growth discordant patterns among normotensive women, women with gestational hypertension, and women with preeclampsia in twin pregnancies. Intertwin crown-rump length discordance at 11 to 14 weeks of gestation was associated with an increased risk of preeclampsia, especially early-onset preeclampsia in dichorionic twin pregnancies, with a dose-response pattern.
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Affiliation(s)
- Jing Zhu
- International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Jun Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Wu
- International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Li Gao
- International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Xinrong Zhao
- International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Weiwei Cheng
- International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China
| | - Yanlin Wang
- International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China.
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The Controversies and Challenges in the Management of Twin Pregnancy: From the Perspective of International Federation of Gynecology and Obstetrics Guidelines. MATERNAL-FETAL MEDICINE 2022. [DOI: 10.1097/fm9.0000000000000170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Reforma LG, Febres-Cordero D, Trochtenberg A, Modest AM, Collier ARY, Spiel MH. Incidence of small-for-gestational-age infant birthweight following early intertwin fetal growth discordance in dichorionic and monochorionic twin pregnancies. Am J Obstet Gynecol 2022; 226:726.e1-726.e9. [PMID: 34838799 PMCID: PMC9064885 DOI: 10.1016/j.ajog.2021.11.1358] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/17/2021] [Accepted: 11/18/2021] [Indexed: 11/01/2022]
Abstract
BACKGROUND Serial growth scans are routinely recommended for twin pregnancies to identify fetal growth restriction (defined as an estimated fetal weight of <10th percentile), which can result in increased perinatal morbidity and mortality. However, the clinical significance of early intertwin growth discordance in the absence of fetal growth restriction remains unclear. OBJECTIVE This study aimed to compare the rates of small-for-gestational-age infants among twin pregnancies with intertwin growth discordance in the absence of fetal growth restriction with that among twin pregnancies with concordant, normal growth identified by ultrasound between 24 0/7 and 31 6/7 weeks' gestation. STUDY DESIGN This was a retrospective cohort study of twin deliveries at a single hospital from 2010 to 2019. Pregnancies without fetal growth restriction were categorized as discordant or concordant using the earliest prenatal growth ultrasound between 24 0/7 and 31 6/7 weeks' gestation. Discordance was defined as an estimated fetal weight difference of ≥18% between twins. Pregnancies with major fetal anomalies, no growth ultrasound between 24 0/7 and 31 6/7 weeks' gestation, or twin-twin transfusion syndrome were excluded. The cohort was stratified by chorionicity. Our primary outcome was small-for-gestational-age defined as <10th percentile per the Fenton growth curve at delivery. Secondary outcomes included gestational age at delivery, mode of delivery, neonatal intensive care unit admission, length of stay, and neonatal complications and placental pathology. RESULTS Of the 707 twin pregnancies that met the inclusion criteria, 558 (79%) were dichorionic and 149 (21%) were monochorionic. Most pregnancies were concordant on ultrasound between 24 0/7 and 31 6/7 weeks' gestation (dichorionic, 93%; monochorionic, 87%). Regardless of chorionicity, twin pregnancies with discordance at ultrasound, were more likely to have a small-for-gestational-age infant than concordant twin pregnancies (dichorionic: 51% vs 29%; P=.002; monochorionic: 65% vs 24%; P<.001). Furthermore, women with twin pregnancies with discordance were delivered at an earlier gestational age (dichorionic: 36 weeks [interquartile range, 33-36] vs 34 weeks [interquartile range, 34-38]; P<.001; monochorionic: 34 weeks [interquartile range, 32-34] vs 36 weeks [interquartile range, 34-37]; P=.003). Pregnancies with growth discordance were more likely to be delivered by cesarean delivery (dichorionic: 90% vs 72%; P=.01; monochorionic: 65% vs 60%; P=.70), although this was only statistically significant for dichorionic twin pregnancies. Neonates of pregnancies with growth discordance had a higher incidence of respiratory distress syndrome (dichorionic: 54% vs 37%; P=.04; monochorionic: 70% vs 45%; P=.04) and neonatal intensive care unit admission (dichorionic: 71% vs 50%; P=.01; monochorionic: 90% vs 65%; P=.03). Furthermore, dichorionic infants had longer neonatal intensive care unit stays (30 [interquartile range, 18-61] vs 18 [interquartile range, 10-35] days; P=.02). CONCLUSION Regardless of chorionicity, twin pregnancies with discordance without fetal growth restriction identified on growth ultrasound between 24 0/7 and 31 6/7 weeks' gestation were nearly twice as likely to develop small-for-gestational-age neonates, deliver earlier in gestation, and experience greater neonatal morbidity than twin pregnancies without discordance. Patients with pregnancies complicated by isolated intertwin discordance between 24 0/7 and 31 6/7 weeks' gestation will need counseling regarding adverse perinatal outcomes.
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Affiliation(s)
- Liberty G Reforma
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA; Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA
| | - Daniela Febres-Cordero
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA; Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA
| | - Alyssa Trochtenberg
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA; Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA
| | - Anna M Modest
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA; Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA
| | - Ai-Ris Y Collier
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA; Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA
| | - Melissa H Spiel
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA; Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA.
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Ye S, Fan D, Li P, Chen G, Rao J, Zhang H, Zhou Z, Feng J, Luo C, Guo X, Liu Z, Lin D. Assessment of different thresholds of birthweight discordance for early neonatal outcomes: retrospective analysis of 2348 twin pregnancies. BMC Pregnancy Childbirth 2022; 22:93. [PMID: 35105310 PMCID: PMC8808974 DOI: 10.1186/s12884-022-04417-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 01/19/2022] [Indexed: 11/10/2022] Open
Abstract
Background The optimal threshold of birthweight discordance (BWD) remains controversial. This study aimed to evaluate the associations between BWD at different thresholds and early neonatal outcomes and to assess their predictive accuracy. Methods This was a retrospective cohort study using a birthweight data with the chorionicity information of 2348 liveborn twin pairs at a gestational age of ≥26 weeks, from 2012 to 2018. The percentage of BWD was calculated by dividing the actual birthweight difference by the weight of the larger twin and multiplying by 100. Outcomes of interest included neonatal intensive care unit (NICU) admission, neonatal respiratory distress syndrome (NRDS), ventilator support and a composite outcome combining major morbidities and neonatal death. Logistic regression models were performed to estimate the association between neonatal outcomes and BWD with different thresholds (≥15.0%, ≥20.0%, ≥25% and ≥ 30%). Generalized estimated equation (GEE) models were used to address intertwin correlation. Restrictive cubic spline (RCS) models were established to draw the dose-response relationship between BWD and the odds ratios of outcomes. Clustered receiver operating characteristic (ROC) curve analyses were performed to assess the predictive accuracy. Results Of 2348 twin pairs, including 1946 dichorionic twin pairs and 402 monochorionic twin pairs, BWD was significantly associated with NICU admission, regardless of the thresholds used. The incidence of NRDS, ventilator support and the composite outcome were significantly higher when a threshold of ≥20% or greater was chosen. The dose-response relationship showed nonlinear growth in the risk of adverse neonatal outcomes with increasing BWD. ROC analyses showed a low significant AUROC of 0.569 (95% CI: 0.526–0.612) for predicting NICU admission but no significant AUROCs for predicting other outcomes. A BWD of ≥30% provided a moderate increase in the likelihood of NICU admission [positive likelihood ratio (LR+) = 5.77]. Conclusion Although BWD is independently associated with adverse neonatal outcomes, it is not a single predictor for neonatal outcomes given the weak discriminative ability to predict neonatal outcomes. A cutoff of 30% is more practical for risk stratification among twin gestations. Supplementary Information The online version contains supplementary material available at 10.1186/s12884-022-04417-4.
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Affiliation(s)
- Shaoxin Ye
- Foshan Institute of Fetal Medicine, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, 11 Renminxi Road, Foshan, 528000, Guangdong, China.,Department of Obstetrics, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Dazhi Fan
- Foshan Institute of Fetal Medicine, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, 11 Renminxi Road, Foshan, 528000, Guangdong, China.,Department of Obstetrics, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Pengsheng Li
- Foshan Institute of Fetal Medicine, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, 11 Renminxi Road, Foshan, 528000, Guangdong, China.,Department of Obstetrics, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Gengdong Chen
- Foshan Institute of Fetal Medicine, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, 11 Renminxi Road, Foshan, 528000, Guangdong, China.,Department of Obstetrics, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Jiaming Rao
- Foshan Institute of Fetal Medicine, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, 11 Renminxi Road, Foshan, 528000, Guangdong, China.,Department of Obstetrics, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Huishan Zhang
- Foshan Institute of Fetal Medicine, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, 11 Renminxi Road, Foshan, 528000, Guangdong, China.,Department of Obstetrics, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Zixing Zhou
- Foshan Institute of Fetal Medicine, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, 11 Renminxi Road, Foshan, 528000, Guangdong, China.,Department of Obstetrics, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Jinping Feng
- Department of Obstetrics, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Caihong Luo
- Department of Obstetrics, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Xiaoling Guo
- Foshan Institute of Fetal Medicine, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, 11 Renminxi Road, Foshan, 528000, Guangdong, China.,Department of Obstetrics, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, 528000, Guangdong, China
| | - Zhengping Liu
- Foshan Institute of Fetal Medicine, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, 11 Renminxi Road, Foshan, 528000, Guangdong, China. .,Department of Obstetrics, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, 528000, Guangdong, China.
| | - Dongxin Lin
- Foshan Institute of Fetal Medicine, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, 11 Renminxi Road, Foshan, 528000, Guangdong, China. .,Department of Obstetrics, Affiliated Foshan Maternity & Child Healthcare Hospital, Southern Medical University, Foshan, 528000, Guangdong, China.
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Hiersch L, Barrett J, Aviram A, Mei-Dan E, Yoon EW, Zaltz A, Kingdom J, Melamed N. Patterns of discordant growth and adverse neonatal outcomes in twins. Am J Obstet Gynecol 2021; 225:187.e1-187.e14. [PMID: 33508311 DOI: 10.1016/j.ajog.2021.01.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/20/2021] [Accepted: 01/20/2021] [Indexed: 01/06/2023]
Abstract
BACKGROUND Intertwin size discordance is an independent risk factor for adverse neonatal outcomes in twin pregnancies. However, size discordance at a given point in gestation fails to take into consideration information, such as the timing of onset and the rate of progression of discordance, that may be of prognostic value. OBJECTIVE In this study, we aimed to identify distinct patterns of discordant fetal growth in twin pregnancies and to determine whether these patterns are predictive of adverse pregnancy outcomes. STUDY DESIGN This was a retrospective cohort study of women with twin pregnancies in a single tertiary referral center between January 2011 and April 2020, who had at least 3 ultrasound examinations during pregnancy that included assessment of fetal biometry. Size discordance was calculated at each ultrasound examination, and pregnancies were classified into 1 of 4 predetermined patterns based on the timing of onset and the progression of discordance: pattern 1, no significant discordance group (referent); pattern 2, early (<24 weeks' gestation) progressive discordance group; pattern 3, early discordance with plateau group; or pattern 4, late (≥24 weeks' gestation) discordance group. The associations of discordance pattern (using pattern 1 as referent) with preterm birth, preeclampsia, size discordance at birth, and birthweight<10th percentile were expressed as adjusted relative risk with 95% confidence intervals and were compared with those observed for a single measurement of size discordance at 32 weeks' gestation. RESULTS Of 2075 women with a twin gestation who were identified during the study period, 1059 met the study criteria. Of the 1059 women, 599 (57%) were classified as no significant discordance (pattern 1), 23 (2%) as early progressive discordance (pattern 2), 160 (15%) as early discordance with plateau (pattern 3), and 277 (26%) as late discordance (pattern 4). The associations of discordance pattern with preterm birth at <34 weeks' gestation and preeclampsia were strongest for pattern 2 (rates of 43% [adjusted relative risk, 3.43; 95% confidence interval, 2.10-5.62] and 17% [adjusted relative risk, 5.81; 95% confidence interval, 2.31-14.60], respectively), intermediate for pattern 3 (rates of 23% [adjusted relative risk, 1.82; 95% confidence interval, 1.28-2.59] and 6% [adjusted relative risk, 2.08; 95% confidence interval, 1.01-4.43], respectively), and weakest for pattern 4 (rates of 12% [adjusted relative risk, 0.96; 95% confidence interval, 0.65-1.42] and 4% [adjusted relative risk, 1.41; 0.68-2.92], respectively). In contrast, a single measurement of size discordance at 32 weeks' gestation showed no association with preeclampsia and only a weak association with preterm birth at <34 weeks' gestation. CONCLUSION We identified 4 distinct discordance growth patterns among twins that demonstrated a dose-response relationship with adverse outcomes and seemed to be more informative than a single measurement of size discordance.
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Lin D, Luo BD C, Chen G, Fan D, Huang Z, Li P, Wu S, Ye BD S, Ma H, Rao J, Zhang H, Chen T, Zeng M, Guo X, Liu Z. The association of hypertensive disorders of pregnancy with small for gestational age and intertwin birthweight discordance. J Clin Hypertens (Greenwich) 2021; 23:1354-1362. [PMID: 34014022 PMCID: PMC8678671 DOI: 10.1111/jch.14257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/28/2021] [Accepted: 03/31/2021] [Indexed: 11/27/2022]
Abstract
Available evidence shows conflicting results regarding the association between hypertensive disorders of pregnancy (HDPs)/preeclampsia (PE) and small for gestational age (SGA) and birthweight discordance (BWD). This retrospective study of 2131 twin pregnancies aimed to evaluate the association of HDPs/PE with the presence of SGA and BWD. The eligible pregnancies were categorized into four study groups: concordant pairs without SGA fetuses, discordant pairs without SGA fetuses, concordant pairs with SGA fetuses, and discordant pairs with SGA fetuses. We applied binary logistic regression models to compare the incidence of HDPs/PE and multinomial logit regression models to evaluate the severity of PE between the study groups. The models were adjusted for potential confounders. Increases in HDPs were observed in concordant (aOR, 2.33; 95% CI: 1.46-3.73) and discordant (aOR, 3.50; 95% CI: 2.26-5.43) pregnancies with SGA fetuses but not in discordant pregnancies without SGA fetuses (aOR, 1.42; 95% CI: 0.81-2.49); increases in PE were also found in concordant (aOR, 1.87; 95% CI: 1.08-3.23) and discordant (aOR, 3.75; 95% CI: 2.36-5.96) pregnancies with SGA fetuses but not in discordant pregnancies without SGA fetuses (aOR, 1.34; 95% CI: 0.71-2.52). Discordant pregnancies with SGA fetuses were associated with severe PE (aRRR, 3.48; 95% CI: 1.79-6.77), whereas concordant pregnancies with SGA fetuses were associated with only mild PE (aRRR, 2.54; 95% CI: 1.33-4.88). Our results suggest that SGA is associated with the development of HDP/PE, while discordant growth is associated with the severity of PE. These associations need to be further investigated using estimated fetal weight (EFW).
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Affiliation(s)
- Dongxin Lin
- Foshan Institute of Fetal MedicineAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
| | - Caihong Luo BD
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
| | - Gengdong Chen
- Foshan Institute of Fetal MedicineAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
| | - Dazhi Fan
- Foshan Institute of Fetal MedicineAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
| | - Zheng Huang
- The First Affiliated Hospital of Guangdong Pharmaceutical UniversityGuangzhouChina
| | - Pengsheng Li
- Foshan Institute of Fetal MedicineAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
| | - Shuzhen Wu
- Foshan Institute of Fetal MedicineAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
| | - Shaoxin Ye BD
- Foshan Institute of Fetal MedicineAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
| | - Huiting Ma
- Foshan Institute of Fetal MedicineAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
| | - Jiaming Rao
- Foshan Institute of Fetal MedicineAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
| | - Huishan Zhang
- Foshan Institute of Fetal MedicineAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
| | - Ting Chen
- Foshan Institute of Fetal MedicineAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
| | - Meng Zeng
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
| | - Xiaoling Guo
- Foshan Institute of Fetal MedicineAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
| | - Zhengping Liu
- Foshan Institute of Fetal MedicineAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
- Department of ObstetricsAffiliated Foshan Maternity & Child Healthcare HospitalSouthern Medical UniversityFoshanChina
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