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WS17‐07Fetal and neonatal echocardiographic features in twin‐to‐twin transfusion syndrome
Author(s) -
Murakoshi T.,
Naruse H.,
Torii Y.,
Maeda K.
Publication year - 2000
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1046/j.1469-0705.2000.00009-1-115.x
Subject(s) - medicine , cardiology , preload , regurgitation (circulation) , pulmonary artery , tricuspid insufficiency , inferior vena cava , ductus arteriosus , tricuspid valve , hemodynamics
Background Twin‐to‐Twin transfusion syndrome (TTTS) is a severe complication in monochorionic twin pregnancies. Particularly severe fetal and neonatal cardiac dysfunction is complicated in recipient twin and attended with high perinatal morbidity and mortality. The aim of this study was to evaluate the abnormal echocardiographic features and clinical complications of cardiac disease in TTTS. Method We studied 20 pregnancies complicated with TTTS. Serial fetal and neonatal echocardiography were carried out and evaluated the following parameters: cardiothoracic area ratio, aortic and pulmonary artery Doppler peak velocities, umbilical arterial resistance index, preload index of inferior vena cava, ventricular valve regurgitation and structural heart abnormalities. Result In recipients, all features had cardiomegaly, tricuspid valve regurgitation and high preload condition with increased preload index of inferior vena cava. Aortic and pulmonary artery peak velocities were increased in the recipients than those in the donors. Three cases of recipients had pulmonary valve stenosis and received balloon pulmonary valvuloplasty. Furthermore, three cases of donors had coarctation of aorta and also received surgical repair. Conclusion In addition to the severity of cardiac dysfunction, pulmonary stenosis and coarctation of aorta would be the important factors to evaluate perinatal prognosis of TTTS.