Survival of twins after delivery depends upon various factors. What is the commonest cause of perinatal moality in twins?
Correct Answer: Preterm
Description: Prematurity is the main cause of increased moality and morbidity in twins. Length of gestation tends to be inversely related to the number of fetuses. The mean age at delivery for singletons is 38.8 weeks, for twins 35.3 weeks, for triplets 32.2 weeks, and for quadruplets 29.9 weeks. The prematurity rate in multiple gestations is 5-10 times that of singletons, with 50% of twins and 90% of triplets born before 37 weeks. Ref: Thilo E.H., Rosenberg A.A. (2012). Chapter 2. The Newborn Infant. In W.W. Hay, Jr., M.J. Levin, R.R. Deterding, J.J. Ross, J.M. Sondheimer (Eds),CURRENT Diagnosis & Treatment: Pediatrics, 21e.
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Gynaecology & Obstetrics
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