Crown-rump length discordance in twins in the first trimester and its correlation with perinatal complications

Shahshahan, Z.; Hashemi, M.
June 2014
Iranian Journal of Reproductive Medicine;Jun2014 Supplement, Vol. 12, p75
Academic Journal
Introduction: A difference more than 15-40% in birth weight of twins can predict perinatal complications. As significant difference in twin's growth has a very important effect on pregnancy and perinatal complications, this study aimed to evaluate crown-rump length discordance (ACRL) in the first trimester of pregnancy and its correlation with perinatal complications. Materials and Methods: A total number of 118 women in the first trimester of twin pregnancy underwent ultrasound examination to measure ACRL. Then, at the time of delivery, perinatal complications in twins were recorded and the correlation between ACRL and perinatal complications were evaluated. Results: Among 118 studied mothers with twin pregnancy, ACRL was normal (<11%) in 96 cases (81.4%) and high (>11%) in 22 cases (18.6%). Birth weight discordance was normal (<20%) in 103 cases (87.3%) and above normal (>20%) in 15 cases (12.7%). The results revealed a significant correlation between higher frequency of small for gestational age (SGA) and high ACRL (more than 11%) (p=0.01). Conclusion: Our study concluded that SGA has a significant relationship with high ACRL (>11%).


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