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Three-dimensional visualization using a rubber balloon as postpartum feedback for vessels traversing vasa previa

Published:November 05, 2022DOI:https://doi.org/10.1016/j.ejogrb.2022.11.004
      Vasa previa is a condition in which umbilical vessels without Warton jelly run through the fetal membrane across the internal os and may by life-threatening to a fetus [
      • Oyelese Y.
      • Smulian J.C.
      Placenta previa, placenta accreta, and vasa previa.
      ]. Therefore, transvaginal color Doppler ultrasound is used to screen for vasa previa. An atypical type of vasa previa was recently reported [
      • Suekane T.
      • Tachibana D.
      • Pooh R.K.
      • Misugi T.
      • Koyama M.
      Type-3 vasa previa: normal umbilical cord insertion cannot exclude vasa previa in cases with abnormal placental location.
      ,
      • Kamijo K.
      • Miyamoto T.
      • Ando H.
      • Tanaka Y.
      • Kikuchi N.
      • Shinagawa M.
      • et al.
      Clinical characteristics of a novel “Type 3” vasa previa: case series at a single center.
      ]. Due to the features of transvaginal ultrasound imaging, difficulties are sometimes associated with the three-dimensional (3D) imaging of vessels traversing vasa previa in utero. Therefore, postnatal feedback of fetal appendages is important, and a recent study suggested the running of the vessels of vasa previa postnatally by 3D imaging [
      • Matsuzaki S.
      • Kakigano A.
      • Mimura K.
      • Nagase Y.
      • Endo M.
      • Kimura T.
      Gross image of vasa previa restored in the postpartum period.
      ]. We herein present a new easy method using a rubber balloon for the 3D visualization of postpartum fetal appendages to confirm vessels traversing vasa previa.
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