Key result
Transcatheter coil occlusion successfully seals iatrogenic AV fistula with preserved arterial patency at 6 months.
Why the study?
Iatrogenic arteriovenous fistula of the internal mammary artery following subclavian vein catheterization presents risks of thromboembolism and arterial stenosis that require evaluation.
Case Report (n=1)
Transcatheter coil occlusion of an iatrogenic internal mammary artery to innominate vein fistula can be performed safely with good long-term patency and no thromboembolism, particularly when supported by heparin therapy during hemodialysis.
Answers are grounded in this paper and cite their sources.
Coil occlusion of post-catheterization fistula showed no thromboembolism or stenosis in this case; leaves open need for prospective data on safety and durability.
We encountered a case of right internal mammary artery to innominate vein fistula following subclavian vein catheterization and the projection of the coil spring was projected after transcatheter intravascular coil occlusion. We were worried about both distal thromboembolism from small thrombi forming on a portion of the coil spring and stenosis of the subclavian artery. However, there was no evidence of thromboembolism of the distal artery, and good patency of the right subclavian artery was shown by an angiogram performed six months later. The patient has been receiving heparin therapy during hemodialysis, which should help prevent thromboembolism of the distal artery.
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A 1985 study conducted a case report in Iatrogenic arteriovenous fistula of the internal mammary artery (n=1). Transcatheter intravascular coil occlusion was evaluated on Thromboembolism of the distal artery and patency of the right subclavian artery. Transcatheter intravascular coil occlusion of an iatrogenic arteriovenous fistula resulted in no evidence of distal thromboembolism and good patency of the right subclavian artery at 6 months.
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