Perinatal Outcome, Placental Pathology, and Severity of Discordance in Monochorionic and Dichorionic Twins

Victoria, Alejandro; Mora, Gerardo; Arias, Fernando

doi:10.1097/00006250-200102000-00027

Cited by 36 publications

(42 citation statements)

References 15 publications

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“…Women aged 40 and over experienced the highest multiple maternity rate (21.6/1000 all maternities) 2. It is known that multiple pregnancies are associated with a higher risk of perinatal death than singletons, which may be the result of many factors,3 – 5 but many of the excess deaths are ultimately due to prematurity 6 7…”

mentioning

confidence: 99%

Mortality of twin and singleton livebirths under 30 weeks' gestation: a population-based study

Ray

Platt

2009

Archives of Disease in Childhood - Fetal and Neonatal Edition

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mentioning

confidence: 99%

Mortality of twin and singleton livebirths under 30 weeks' gestation: a population-based study

Ray

Platt

2009

Archives of Disease in Childhood - Fetal and Neonatal Edition

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“…MC twin pregnancies carry a higher risk of perinatal complications compared to DC twins 2 – 4. In the first half of the 20th century, perinatal mortality was 27.7% for MC and 15.8% for DC twins.…”

mentioning

confidence: 99%

Pathology of twin placentas with special attention to monochorionic twin placentas

2008

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The risk of perinatal morbidity and mortality in twins is 3-7 times higher than in singletons. In comparison to dichorionic twins, monochorionic twins are at increased risk for perinatal mortality and serious morbidity. In both type of twins growth discordance can occur. Discordant growth of dichorionic twins could be due to differences in placental mass or differences in placental parenchymal lesions, whereas birth weight discordancy in monochorionic twins is caused by placental vascular anastomoses. In this review the different types of complications (acardiac twins, acute and chronic twin-twin transfusion syndrome) due to different combinations of vascular anastomoses are discussed in relation to a computer model developed to gain more insight into the development of the twin-twin transfusion syndrome. The angioarchitecture of 395 monochorionic twin placentas was studied. Mortality was highest in the absence of an arterio-arterial anastomosis (42%) and lowest in the presence of an arterio-arterial anastomosis (15%). If mortality occurred, pregnancies with double mortality usually had an arterio-arterial anastomosis. If pregnancies were complicated by one death, a veno-venous anastomosis is more likely to be present. In conclusion, monochorionic twin pregnancies are a high risk pregnancy with a high chance of both mortality and morbidity; placental characteristics are a major contributor to adverse outcome in these pregnancies.

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“…Monochorionicity has been associated with adverse outcomes such as preterm delivery, increased rates of NICU admission and longer NICU stays, neurological and respiratory morbidities, and perinatal mortality Victoria et al, 2001; Acosta-Rojas et al, 2007; Hack et al, 2008). Birth weight discordance has similarly been associated with a greater incidence of adverse perinatal outcomes (Amaru et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

Discordance of prenatal and neonatal brain development in twins

Mukherjee

Kang

Wolfe

et al. 2009

Early Human Development

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Perinatal Outcome, Placental Pathology, and Severity of Discordance in Monochorionic and Dichorionic Twins

Cited by 36 publications

References 15 publications

Mortality of twin and singleton livebirths under 30 weeks' gestation: a population-based study

Mortality of twin and singleton livebirths under 30 weeks' gestation: a population-based study

Pathology of twin placentas with special attention to monochorionic twin placentas

Discordance of prenatal and neonatal brain development in twins

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