Endovascular Occlusion of the
Iatrogenic Aorto-caval Shunt from an Excluded Aorta.
Case-record.
Peregrin J. H., Šochman J.
Základna radiodiagnostiky a intervenční radiologie IKEM, Praha, přednosta doc. MUDr. Jan Peregrin, CSc. Klinika kardiologie IKEM, Praha, přednosta prof. MUDr. Vladimír Staněk, CSc. |
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Summary:
Objective: To demonstrate the treatment of an unusual aorto-caval shunt by embolization and
implantation of a covered stent to the IVC.
Material and method: Male, 56 years. In 1992 during lumbar spine disc surgery the abdominal aorta
was inadvertently injured and an aorto-caval shunt finally developed with developing symptoms of
LV failure. Final surgical treatment was an aortobiiliac bypass with ligation of the aorta and both
common iliac arteries, but on FU i.v. DSA an early filling of IVC was detected.
During the first years after the surgery the patient was doing well, but in 1998 the symptoms of LV
failure reoccurred (dyspnoea, LV enlargement, Cl=4.0 l/min/m
2
). Angiography detected a significant
A-V shunt arising from an excluded aortic segment that was filled by retrograde flow from lumbar
arteries.
By a retrograde approach via IVC a catheter was introduced through the shunt channel to the
excluded aorta and 4 pieces of 30 cm embolization coils were introduced. A custom made Ella
covered stent was implanted into the IVC to seal the shunt channel.
The patient is symptoms free, LV diminished in size, Cl dropped to 2.7 l/min/m
2
. Radionuclide study
did not detect any shunt to IVC, FU angiography revealed a minor, almost non-detectable A-V shunt
to IVC.
Key words:
embolization – aorto-caval shunt – covered stent
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