Spontaneous echo contrast and decreased umbilical vein blood flow may predict thrombus formation in fetal intra-abdominal umbilical vein varix.
Fetal intra-abdominal umbilical vein varix (FIUVV)
Spontaneous echo contrast (SEC)
Thrombosis
Journal
Journal of medical ultrasonics (2001)
ISSN: 1613-2254
Titre abrégé: J Med Ultrason (2001)
Pays: Japan
ID NLM: 101128385
Informations de publication
Date de publication:
26 Mar 2024
26 Mar 2024
Historique:
received:
06
01
2023
accepted:
09
02
2024
medline:
26
3
2024
pubmed:
26
3
2024
entrez:
26
3
2024
Statut:
aheadofprint
Résumé
Fetal intra-abdominal umbilical vein varix (FIUVV) can cause thrombosis, fetal growth restriction (FGR), and intrauterine fetal death (IUFD). However, its management and evaluation to avoid fetal risks have not been elucidated. The aim of this study was to develop a novel method to evaluate fetal risks, including FGR and fetal dysfunction via frequent ultrasound examinations. A 28-year-old pregnant woman was diagnosed with FIUVV via ultrasound at 26 weeks of gestation and admitted to our hospital. Ultrasound examinations were performed two to three times weekly to evaluate size and shape of the FIUVV and umbilical vein blood flow at the inflow and outflow sites of the FIUVV. The outflow site of the FIUVV was constricted and collapsed, and the blood flow velocity at the inflow site of the FIUVV was decreased. At 32 weeks of gestation, spontaneous echo contrast (SEC), which indicates increased echogenicity, appeared. At 35 weeks of gestation, the patient noticed decreased fetal movement, and CTG showed non-reassuring fetal status. SEC in the FIUVV was remarkable. Fetal movement could not be confirmed at ultrasound. Cesarean section was performed and a 1,854-g healthy infant was delivered with an umbilical cord arterial pH of 7.266. The echographic changes, such as decreased umbilical vein blood flow and SEC, in FIUVV observed in this case could indicate thrombus formation, which can lead to fetal dysfunction. Frequent ultrasound examinations can help determine the timing of delivery and improve the neonatal prognosis.
Identifiants
pubmed: 38530506
doi: 10.1007/s10396-024-01428-w
pii: 10.1007/s10396-024-01428-w
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2024. The Author(s), under exclusive licence to The Japan Society of Ultrasonics in Medicine.
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