Fetal thrombotic vasculopathy: A case report and literature review

Peleja, Ana Berquo; Martinelli, Silvio; Ribeiro, Renata Lopes; Bittar, Roberto Eduardo; Schultz, Regina; Francisco, Rossana Pulcineli Vieira

doi:10.1590/1806-9282.62.07.687

Cited by 2 publications

(1 citation statement)

References 12 publications

(15 reference statements)

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“…Lepais et al showed that fetal thrombotic vasculopathy may cause acute or intermittent obstruction of umbilical blood flow, 9 which is related to fetal growth restriction and can lead to extraplacental umbilical cord and fetal thrombosis. 10 Placental thrombosis may alter the entire umbilical circulation, which we believe is the cause of a low umbilical S/D ratio. In Case 4, the placenta was much thicker at gestational week 31 than a previous measurement, with many calcified spots and blood sinuses in the placenta, which were apparently inconsistent with normal placental maturity.…”

Section: Discussionmentioning

confidence: 86%

A sustained decrease in the systolic/diastolic ratio may be a sign of severe adverse events in the umbilical cord: a report of eight cases

Zeng,

Zhang,

et al. 2024

J Int Med Res

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A high systolic/diastolic (S/D) ratio of umbilical cord blood is a manifestation of intrauterine hypoxia. However, the clinical significance of a persistently decreased S/D ratio of umbilical cord blood has not been reported. We report eight cases of a persistently decreased S/D ratio of umbilical cord blood, with two cases of umbilical thrombus, five cases of excessive torsion, and one case of a true cord knot. Fetuses with a persistently decreased S/D ratio of umbilical cord blood may be at risk, and it may be an important indication of umbilical cord lesions.

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Section: Discussionmentioning

confidence: 86%