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Peer-reviewedCC BYJournal of vascular surgery cases and innovative techniques

Unexpected para-aortic venous migration of n-butyl cyanoacrylate during transarterial sac embolization for a type II endoleak: A technical pitfall.

  • Kohei Hamamoto1
  • Emiko Chiba1
  • Soichiro Kojima1
  • Mamoru Arakawa2
  • Harushi Mori1
  1. 1Department of Radiology, Jichi Medical University, Shimotsuke, Tochigi, Japan.
  2. 2Department of Cardiovascular Surgery, Jichi Medical University, Shimotsuke, Tochigi, Japan.
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Abstract

We report an unusual case of para-aortic venous migration of n-butyl cyanoacrylate (NBCA) during transarterial sac embolization for a type II endoleak after endovascular aneurysm repair. Preprocedural computed tomography and angiography demonstrated no venous communication. During progressive NBCA injection, sequential opacification of the fourth lumbar vein and a para-aortic venous structure became apparent, prompting immediate cessation of embolization. The patient remained asymptomatic, and follow-up imaging demonstrated stable aneurysm size without complications. This case highlights a rare technical pitfall and emphasizes careful fluoroscopic monitoring during NBCA sac embolization despite initially negative imaging findings.

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Cite

BibTeXRIS
BibTeX
@article{hamamoto2026unexpected,
  title = {{Unexpected para-aortic venous migration of n-butyl cyanoacrylate during transarterial sac embolization for a type II endoleak: A technical pitfall.}},
  author = {Kohei Hamamoto and Emiko Chiba and Soichiro Kojima and Mamoru Arakawa and Harushi Mori},
  journal = {Journal of vascular surgery cases and innovative techniques},
  year = {2026},
  month = sep,
  doi = {10.1016/j.jvscit.2026.102514},
  url = {https://europepmc.org/article/MED/42903859},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Unexpected para-aortic venous migration of n-butyl cyanoacrylate during transarterial sac embolization for a type II endoleak: A technical pitfall.
AU  - Kohei Hamamoto
AU  - Emiko Chiba
AU  - Soichiro Kojima
AU  - Mamoru Arakawa
AU  - Harushi Mori
PY  - 2026
DA  - 2026/09/19
JO  - Journal of vascular surgery cases and innovative techniques
DO  - 10.1016/j.jvscit.2026.102514
UR  - https://europepmc.org/article/MED/42903859
AB  - We report an unusual case of para-aortic venous migration of n-butyl cyanoacrylate (NBCA) during transarterial sac embolization for a type II endoleak after endovascular aneurysm repair. Preprocedural computed tomography and angiography demonstrated no venous communication. During progressive NBCA injection, sequential opacification of the fourth lumbar vein and a para-aortic venous structure became apparent, prompting immediate cessation of embolization. The patient remained asymptomatic, and follow-up imaging demonstrated stable aneurysm size without complications. This case highlights a rare technical pitfall and emphasizes careful fluoroscopic monitoring during NBCA sac embolization despite initially negative imaging findings.
SN  - 2468-4287
ER  -