Am J Perinatol 2024; 41(05): 531-538
DOI: 10.1055/s-0042-1744259
Review Article

Ultrasonographic Diagnosis of Twin-to-Twin Transfusion Syndrome

Eduardo Reyna-Villasmil
1   Obstetrics and Gynecology Department. Central Hospital Dr. Urquinaona, Maracaibo, Venezuela
,
2   Obstetrics and Gynecology Department, University of Zulia, Maracaibo, Venezuela
,
Juan C. Briceño-Sanabria
3   Obstetrics and Gynecology Department. San Juan de Dios Hospital, Río Negro, Colombia
› Institutsangaben
Funding None.

Abstract

Introduction Twin-twin transfusion syndrome (TTTS) is a typical complication of monochorionic twin pregnancies (MCTP). Placental vessels that communicate in the chorionic plate between donor and recipient, are responsible for the imbalance of blood flow. Circulatory imbalance causes hypovolemia in donor and hypervolemia in recipient fetus. In a typical case, recipient fetus develops polyhydramnios, weight gain, cardiomegaly and hydrops fetalis. In contrast, donor fetus develops oligohydramnios and fetal growth restriction.

Aim The objective of this review is to evaluate in detail the main diagnostic aspects and add other important data for diagnosis of TTTS.

Scientific bases The main diagnostic event for this condition is based on the ultrasonographic discovery of oligohydramnios-polyhydramnios sequence. Other useful elements for diagnosis, staging and prognosis are fetal urinary bladder visualization, urinary bladder volumen measurements, edema of subcutaneous and/or generalized tissue edema, Doppler flow velocity waves and cardiac evaluation.

Conclusion Considerations regarding diagnosis of TTTS make it possible to emphasize that role of physicians treating patients with MCTP is to identify ultrasound sequence of oligohydramnios-polyhydramnios. Other ultrasonographic fetal data as fetal urinary bladder visualization, urinary bladder volumen measurements, edema of subcutaneous and/or generalized tissue edema, Doppler flow velocity waves and cardiac evaluation; may help diagnosis, staging and prognosis of TTTS. It is their responsibility to accurately assess severity, therapeutic possibilities and prognosis.

Key Points

  • The role of physicians treating patients with MCTP, regarding diagnosis of TTTS, must be to identify ultrasound sequence of oligohydramnios–polyhydramnios.

  • Other ultrasonographic fetal data may help diagnosis, staging, and prognosis of TTTS as follows: fetal urinary bladder visualization, urinary bladder volume measurements, edema of subcutaneous and/or generalized tissue edema, Doppler flow velocity waves, and cardiac evaluation.

  • It is physicians' responsibility to accurately assess severity, therapeutic possibilities, and prognosis of patients with MCTP and diagnosis of TTTS.



Publikationsverlauf

Eingereicht: 01. Mai 2021

Angenommen: 26. Januar 2022

Artikel online veröffentlicht:
09. März 2022

© 2022. Thieme. All rights reserved.

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