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CC BY-NC-ND 4.0 · AJP Rep 2024; 14(02): e136-e139
DOI: 10.1055/a-2315-7550
Case Report

Type III Vasa Previa Associated with Resolution of a Low-Lying Placenta: Case Report and Literature Review

Joanna J. Kim
1   Department of Obstetrics and Gynaecology, University of Ottawa, Ottawa, Ontario, Canada
,
Katherine Bonhomme
1   Department of Obstetrics and Gynaecology, University of Ottawa, Ottawa, Ontario, Canada
,
Lawrence W. Oppenheimer
1   Department of Obstetrics and Gynaecology, University of Ottawa, Ottawa, Ontario, Canada
,
Laura Gaudet
2   Department of Obstetrics and Gynaecology, Queen's University, Kingston, Ontario, Canada
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Abstract

Vasa previa occurs when fetal vessels lie above the cervical os. A novel type of vasa previa, known as type III, is characterized by an abnormal branching of fetal vessels from the placenta in the absence of velamentous cord insertion (as seen in type I) or multilobed placenta (as seen in type II). Here, we present a case of a type III vasa previa after a resolution of a low-lying placenta. The presence of any known risk factors of vasa previa, including low-lying placenta, should prompt screening for vasa previa in the third trimester. Accurate and timely diagnosis of vasa previa will confer significant survival benefit for the neonate.

Keywords

vasa previa - placenta - prenatal diagnosis - fetal medicine


Publication History

Received: 29 January 2024

Accepted: 27 March 2024

Accepted Manuscript online:
27 April 2024

Article published online:
10 May 2024

© 2024. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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