Peer-reviewed veterinary case report
Venovo stent use for liver shunt treatment in 14 dogs
By Collins, Samantha G et al.·Published in American journal of veterinary research·2025·View original on PubMed →
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Original publication title: Venovo venous stent for percutaneous treatment of intrahepatic portosystemic shunts in 14 dogs.
- Species:
- dog
Plain-English summary
Fourteen dogs with congenital liver shunts were treated using a special stent called the Venovo venous stent during a procedure to block abnormal blood flow. These dogs showed various symptoms related to their liver issues and had been managed with medication before the procedure. After the stent was placed, all dogs had successful outcomes, with no complications like stent migration or fracture observed in follow-up X-rays. This method appears to be a safe and effective option for treating these types of shunts in dogs.
People also search for: dog liver shunt treatment · Venovo stent for dogs · congenital portosystemic shunt symptoms
Abstract
OBJECTIVE: To present single-center data for the Venovo venous stent as an alternative option during percutaneous transvenous coil embolization (PTCE) in dogs with a congenital intrahepatic portosystemic shunt. ANIMALS: 14 client-owned dogs in a retrospective case series. CLINICAL PRESENTATION: All dogs were referred for PTCE intervention and had varying degrees of clinical signs. Dogs were medically managed before PTCE. Medical records of dogs that underwent PTCE using a Venovo stent from 2020 through 2024 were reviewed for relevant periprocedural data, adverse events, and outcomes. RESULTS: 14 dogs with a mean body weight of 19.5 kg (SD, 6.9 kg) underwent PTCE with implantation of a Venovo stent. The mean caudal vena cava diameter cranial to the shunt orifice was 15.4 mm (SD, 2.8 mm) and caudal to the shunt orifice was 17.5 mm (SD, 3.7 mm). A single Venovo stent was used for each dog, with a median diameter of 18.0 mm (IQR, 14.0 to 20.0 mm) and a mean length of 91.4 mm (SD, 21.8 mm). The mean ratio of stent size to vena cava diameter was 1.0 (SD, 0.1) caudal to the shunt orifice and 0.9 (SD, 0.1) cranial to the shunt orifice. Postoperative radiographs in all dogs revealed appropriate stent and coil position with no outward migration or fracture. CLINICAL RELEVANCE: The Venovo venous stent is a viable option for stent selection when planning for PTCE. The Venovo stent can be generally sized 1:1 to the vessel, and oversizing to the caudal vena cava is unnecessary.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/40315912/