Perinatal conditions of late preterm twins versus early term twins

ZHANG Yi-Min; SHAO Shu-Ming; ZHANG Xiao-Rui; LIU Jie; ZENG Chao-Mei

doi:10.7499/j.issn.1008-8830.2011126

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Chinese Journal of Contemporary Pediatrics ›› 2021, Vol. 23 ›› Issue (3) : 242-247. DOI: 10.7499/j.issn.1008-8830.2011126

CLINICAL RESEARCH

Perinatal conditions of late preterm twins versus early term twins

ZHANG Yi-Min, SHAO Shu-Ming, ZHANG Xiao-Rui, LIU Jie, ZENG Chao-Mei

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Abstract

Objective To study the perinatal complications of late preterm twins (LPTs) versus early term twins (ETTs). Methods A retrospective analysis was performed for the complications of 246 LPTs, 496 ETTs, and their mothers. The risk factors for late preterm birth were analyzed. According to gestational age, the twins were divided into five groups: 34-34⁺⁶ weeks (n=44), 35-35⁺⁶ weeks (n=70), 36-36⁺⁶ weeks (n=132), 37-37⁺⁶ weeks (n=390), and 38-38⁺⁶ weeks (n=106). The perinatal complications were compared between groups. Results Maternal hypertension, maternal thrombocytopenia, placenta previa, and premature rupture of membranes were independent risk factors for late preterm birth in twins (P < 0.05). The LPT group had higher incidence rates of respiratory diseases, feeding intolerance, and hypoglycemia than the ETT group (P < 0.05). The 34-34⁺⁶ weeks group had a higher incidence rate of neonatal asphyxia than the 37-37⁺⁶ weeks and 38-38⁺⁶ weeks groups; and had a higher incidence rate of septicemia than 36-36⁺⁶ weeks group (P < 0.0045). The 34-34⁺⁶ weeks and 35-35⁺⁶ weeks groups had higher incidence rates of neonatal respiratory distress syndrome, neonatal apnea, and anemia than the other three groups; and had higher incidence rates of neonatal pneumonia, hypoglycemia and septicemia than the 37-37⁺⁶ weeks and 38-38⁺⁶ weeks groups (P < 0.0045). The 35-35⁺⁶ weeks group had a higher incidence rate of feeding intolerance than the 36-36⁺⁶ weeks, 37-37⁺⁶ weeks, and 38-38⁺⁶ weeks groups (P < 0.0045). The 36-36⁺⁶ weeks group had a lower incidence rate of hypoglycemia than the 34-34⁺⁶ weeks group and a higher incidence rate of hypoglycemia than the 37-37⁺⁶ weeks group (P < 0.0045). Conclusions Compared with ETTs, LPTs have an increased incidence of perinatal complications. The incidence of perinatal complications is associated with gestational ages in the LPTs and ETTs.

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Twins / Perinatal period / Complication / Late preterm infant / Early term infant

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ZHANG Yi-Min, SHAO Shu-Ming, ZHANG Xiao-Rui, LIU Jie, ZENG Chao-Mei. Perinatal conditions of late preterm twins versus early term twins[J]. Chinese Journal of Contemporary Pediatrics. 2021, 23(3): 242-247 https://doi.org/10.7499/j.issn.1008-8830.2011126

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