Dominant outflow vein occlusion in the management of naturally occurring peripheral arteriovenous anomalies in cats and dogs

Two dogs and 1 cat were referred to a tertiary veterinary center for the consultation and treatment of limb edema, variable dermal sanguineous crusting lesions, and intermittent lameness. A peripheral arteriovenous anomaly (PAA) was diagnosed via computed tomographic angiography (CTA) in each case....

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Published inJournal of veterinary internal medicine Vol. 35; no. 6; pp. 2876 - 2884
Main Authors Hyndman, Philip S., Weisse, Chick, Schwartz, Pamela, Rosen, Robert J.
Format Journal Article
LanguageEnglish
Published Hoboken, USA John Wiley & Sons, Inc 01.11.2021
Wiley
Subjects
angiography
Angiography - veterinary
Animals
Arteriovenous Malformations - therapy
Arteriovenous Malformations - veterinary
Case Report
Cat Diseases - diagnostic imaging
Cat Diseases - therapy
Catheters
Cats
Computed Tomography Angiography
digital subtraction angiography
Dog Diseases - diagnostic imaging
Dog Diseases - surgery
Dogs
Embolization
Embolization, Therapeutic - veterinary
General anesthesia
Ligation - veterinary
Medical imaging
peripheral arteriovenous fistula
peripheral arteriovenous malformation
SMALL ANIMAL
Surgery
Veins & arteries
angiography
digital subtraction angiography
peripheral arteriovenous fistula
peripheral arteriovenous malformation
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Summary:Two dogs and 1 cat were referred to a tertiary veterinary center for the consultation and treatment of limb edema, variable dermal sanguineous crusting lesions, and intermittent lameness. A peripheral arteriovenous anomaly (PAA) was diagnosed via computed tomographic angiography (CTA) in each case. Arteriography enabled further evaluation of the PAA with confirmation of a dominant outflow vein. Dominant outflow vein occlusion was achieved by direct ligation in 1 dog and retrograde transvenous glue embolization in the cat and other dog. Repeat arteriography demonstrated resolution of arteriovenous shunting. Presenting clinical signs resolved in all animals. The previously identified aberrant vessels in 1 dog were not identified after CTA 40 days postoperatively. No postoperative complications or recurrence was identified in any case during the 6‐ to 55‐month follow‐up period.
ISSN:0891-6640
1939-1676
DOI:10.1111/jvim.16286