1. Placental weight and birth weight to placental weight ratio in monochorionic and dichorionic growth-restricted and non-growth-restricted twins
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Mariângela Alves Souza, Maria de Lourdes Brizot, Sckarlet Ernandes Biancolin, Regina Schultz, Mário Henrique Burlacchini de Carvalho, Rossana Pulcineli Vieira Francisco, and Marcelo Zugaib
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Twin Pregnancy ,Placental Pathology ,Placental Weight ,Birth Weight/Placental Weight Ratio ,Monochorionic Twin ,Growth Restriction ,Medicine (General) ,R5-920 - Abstract
OBJECTIVE: The aim of the present study was to compare the placental weight and birth weight/placental weight ratio for intrauterine growth-restricted and non-intrauterine growth-restricted monochorionic and dichorionic twins. METHODS: This was a retrospective analysis of placentas from twin pregnancies. Placental weight and the birth weight/placental weight ratio were compared in intrauterine growth-restricted and non-intrauterine growth-restricted monochorionic and dichorionic twins. The association between cord insertion type and placental lesions in intrauterine growth-restricted and non-intrauterine growth-restricted monochorionic and dichorionic twins was also investigated. RESULTS: A total of 105 monochorionic (intrauterine growth restriction=40; non-intrauterine growth restriction=65) and 219 dichorionic (intrauterine growth restriction=57; non-intrauterine growth restriction=162) placentas were analyzed. A significantly lower placental weight was observed in intrauterine growth-restricted monochorionic (p=0.022) and dichorionic (p
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