Case Studies | Gynaecology | Sri Lanka | Volume 3 Issue 8, August 2014
Expectant Management of an Acardiac Twin Pregnancy
S. H. Dodampahala  | M.S.E. Karunadasa
Abstract: Synonyms key words Twin reversed arterial perfusion syndrome (TRAP), Acardius. acardiac monsters, Mono chorionic twins. Prevalence: 0.3: 10, 000 pregnancies, 1 % monozygotic twin pregnancies. Definition: A complication of monozygotic twin pregnancies in which one fetus develops normally (pump twin) and the second twin (recipient twin) demonstrates cardiac mal development ranging from complete absence of heart tissue to some formation of rudimentary myocardia. Etiology: Probable reversal of circulation in the anomalous twin resulting from anastomosis of circulation between the twins. Pathogenesis: Malformation of the heart and heart dependent endodermal organs in the anomalous twin. Associated anomalies: In the perfused twin: total or partial absence of cranial vault, holoprosencephaly, anencephaly, absent facial structures, anophthalmia, microphthalmia, cleft lip, cleft palate, absent or rudimentary limbs, diaphragmatic defects, absent lungs and heart, esophageal atresia, ventral wall defects, ascites, absent liver and gallbladder, edema of the skin and single umbilical artery. In the pump twin: evidence of congestive heart failure (ascites, pleural effusions, polyhydramnios, skin edema).
Keywords: win reversed arterial perfusion syndrome TRAP, Acardius acardiac monsters, Mono chorionic twins
Edition: Volume 3 Issue 8, August 2014,
Pages: 1005 - 1008
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