Difficulties in recruiting

Fetal brain asymmetry is considered a normal developmental processes. The size and shape of the lateral ventricles are interdependence with the brain parenchyma. Abnormal development of the fetal brain may cause unilateral or bilateral ventriculomegaly. Fetal cerebral ventricle measurement is one of the most frequently used sonographic tool for the evaluation of brain development. It is easier to evaluate and measure the distal cerebral ventricle, and therefore data concerning the normal range of asymmetry and the normal progress of the asymmetry are limited.

The objective of the study is to follow up the incidental finding of fetal ventricle brain asymmetry between 19-30 weeks of pregnancy.

Inclusion Criteria:

• 18-42 years old pregnant women
• 19-30 weeks of pregnancy
• No medical history of chronic disease
• No medical history of drug therapy
• No other findings on ultrasound examination
• Low risk pregnancy

Exclusion Criteria:

• Fetal malformation
• Chronic maternal disease
• Fetal chromosomal aberration
• suspected fetal infection

Pregnant women with fetal ventricle brain asymmetry