Características prenatales del síndrome de Turner

Most fetuses with prenatally diagnosed Turner's syndrome have a complete monosomy X and in almost all there are abnormalities on ultrasound scan that lead to diagnosis. Compared with postnatal series, heart defects are more frequent and severe in these fetuses. All these features explain the poor prognosis associated with prenatal diagnosis of this chromosomal disorder. Fetal echocardiography allows accurate diagnosis of most heart defects. The probability of cardiac disease increases when an abnormal ductus venosus waveform is found.