Intra-abdominal Umbilical Vein Aneurysm (AVO)

Hôpital NOVO

Status: Completed

Conditions: Obstetric Complication

Treatments: Diagnostic Test: Ultrasound monitoring

Study type: Observational

Funder types: Other

Identifiers

NCT03653884

CHRD0716

Details and patient eligibility

About

The purpose of this study is to investigate the ultrasound characteristics and outcome of pregnancies with fetal Intra-abdominal umbilical vein aneurysm.

Full description

Intra-abdominal umbilical vein aneurysm is a rare pathology of the fetal venous system. Its incidence is low, evaluated between 0.4 and 1.1 / 1000.

Intra-abdominal umbilical vein aneurysm is identified as an oval or rounded, anechoic mass located between the abdominal wall and the lower edge of the liver.

It is defined by two criteria: either a diameter greater than 9 mm or a diameter of the subhepatic segment of the umbilical vein greater than 50% of the diameter of its intrahepatic segment.

The complications that can occur during pregnancy are mainly represented by the MFIU, the occurrence of thrombosis and intrauterine growth retardation (IUGR). Their overall frequency is evaluated at 10%.

A complete fetal morphological assessment is necessary to eliminate the presence of other lesions. However, ultrasound monitoring is recommended during the third trimester in search of an increase in dilation and especially the appearance of a thrombus. A particular clinical form, related to abnormal umbilical vein involvement in the infra-hepatic portal system, must be individualized because of a high risk of thrombosis. It justifies the realization of an abdominal ultrasound in the first days of life

Enrollment: 43 patients

Sex: Female

Ages: 18 to 60 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• All patients who have AVO partially intra-abdominal isolated or associated with other abnormalities.
• Patients over the age of 18 who agree to participate in the study after oral information given by the sonographer.
• Any patient seen in 1st intention or 2nd intention.
• Gestational age between 20 and 35 weeks

Exclusion criteria

• Patient refusing to participate in the study.

Trial design

43 participants in 1 patient group

Pregnancy with fetal intra-abdominal umbilical vein.

Description:

All women with a pregnancy with a partially intra-abdominal umbilical vein aneurysm isolated or associated with other abnormalities découvert lors d'une ultrasonic monitoring.

Treatment:

Diagnostic Test: Ultrasound monitoring