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  • Title: Perinatal outcome according to chorionicity in twins - a Polish multicenter study.
    Author: Kosińska-Kaczyńska K, Szymusik I, Bomba-Opoń D, Olejek A, Sławska H, Zimmer M, Pomorski M, Bręborowicz G, Drews K, Seremak-Mrozikiewicz A, Szymankiewicz M, Pikuła T, Oleszczuk J, Patro-Małysza J, Marciniak B, Wielgoś M.
    Journal: Ginekol Pol; 2016; 87(5):384-9. PubMed ID: 27304656.
    Abstract:
    OBJECTIVES: The aim of the study was to analyze the perinatal outcome of twin gestations and estimate the influence of chorionicity on the outcome in a large cohort of twin pregnancies in Poland. MATERIAL AND METHODS: A retrospective analysis of 465 twin deliveries in 6 Polish centers in 2012 was conducted. Baseline characteristics, the course of pregnancy and labor, as well as the neonatal outcome were analyzed in the study group and according to chorionicity. RESULTS: A total of 356 twin pregnancies were dichorionic (DC group) (76.6%), and 109 were monochorionic (MC group) (23.4%). There were no differences in the occurrence of pregnancy complications according to chorionicity, except for IUGR of at least one fetus (MC 43.1% vs. DC 34.6%; p = 0.003). 66.5% of the women delivered preterm, significantly more in the MC group (78% vs. 62.9%; p = 0.004). Cesarean delivery was performed in 432 patients (92.9%). Mean neonatal birthweight was statistically lower in the MC group (2074 g vs. 2370 g; p < 0.001). Perinatal mortality of at least one twin was 4.3% (2.8% in the DC group vs. 9.2% in the MC group; p = 0.004). Neonatal complications, including NICU admission, respiratory disorders, and infections requiring antibiotic therapy, were significantly more often observed among the MC twins. CONCLUSIONS: The overall perinatal outcome in the presented subpopulation of Polish twins and its dependence on cho-rionicity is similar to the reports in the literature. Nevertheless, the rates of preterm and cesarean deliveries remain higher. It seems that proper counselling of pregnant women and education of obstetricians may result in reduction of these rates.
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