Antenatal Diagnosis and Prognosis of Fetal Lateral Ventriculomegaly in Different Degrees by Ultrasound

Objective:To study the value of ultrasound in antenatal diagnostic and prognostic evaluation of fetal lateral ventriculomegaly.Methods:The pregnant women with fetal lateralventriculomegaly undertook ultrasonic examination and were followed up for six months after birth.The degrees of fetal lateral ventriculomegaly were measured and recorded.Fifty-three cases underwent amnio-centesis for chromosome karyotype analysis.Results:There were 116 cases with different degrees of lateral ventriculomegaly,of which,51 cases underwent artificial labor in gestation stage,including 17 cases in mild degree and 34 cases in severe degree.Of the other 65cases without artificial labor,61 cases were in mild group,including 31 cases(50.82%)whose venticulomegaly gradually disappeared,6 cases(9.83%)became more serious,and 24 cases(39.34%)kept existence.The other 4cases without artifcial labor were in severe grade,including one was dead-birth and three died in six months after birth.Twelve(23.53%) of the 53cases underwent chromosome karyotype analysis showed chromosome abnormality.Conclusion:About 50% of simplex mild lateral ventriculomegaly vanished before birth,40%kept existence,and only very few became more serious.The lateral ventriculomegaly would have a poor prognosis when complicates with other deformations or in severe degree,unless the pregnant women undertake artificial labor.