(1) University of Arkansas for the Medical Sciences, Little Rock, Arkansas, USA
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Twin pregnancies are at increased risk, compared to singleton pregnancies, for spontaneous abortions, malformations, low birth weight neonates, and preterm deliveries. Additionally the pregnancies are at greater risk for gestational diabetes, hypertension/ preeclampsia, acute fatty liver, and placental abruption. Because of these increased risks for pregnancy complications and adverse pregnancy outcomes, the assessment of amniotic fluid volume is even more important in twin pregnancies during the foetal anatomic survey, growth assessment, and as a component of antenatal testing. This paper discusses the different methods we have to evaluate amniotic fluid volume in twins.
The amniotic fluid volume in twins is estimated by many different techniques including amniotic fluid index, single deepest pocket, 2-diameter pocket, and subjective assessment method.
Twin pregnancies are at significantly higher risk for pregnancy complications, perinatal morbidity and mortality compared to singleton pregnancies. The amniotic fluid volume can be measured accurately in each sac but the techniques to measure those fluid volumes are impractical for everyday use.