Prenatal Screening of Intestinal Malrotation With a Higher Risk of Volvulus.

Prenatal Screening of Intestinal Malrotation With a Higher Risk of Volvulus: Value of the Ultrasound Study of the Relative Position of the Superior Mesenteric Vessels and Fetal Abdominal MRI.

Digestive malrotation is an anatomical anomaly of the positionning of the mesenteric vessels and the digestive tract that can lead in some form to a dangerous neonatal complication: intestinal volvulus. This requires emergency surgery with a risk of digestive resection. Visualizing during pregnancy the normal or abnormal anatomical positionning of the mesenteric vessels could make it possible to diagnose this malrotation and prevent the occurrence of this complication.

The aim of the study is to study the neonatal outcome of fetus confirm to have an abnormal positionning of mesenteric vessels

Inclusion criteria:

• Pregnant women attending for 2nd trimester ultrasound
• Abnormal positionning of mesenteric vessels
• No other foetal malformation
• Singleton pregnancy
• Age >18 years

Exclusion criteria:

• Chromosomal abnormality
• polymalformative syndrom
• Foetal malformation changing intestine disposition (gastroschisis, diaphragmatic hernia, heterotaxis…)