Collins Samantha G, Markovic Lauren E, Bartges Joseph W
Am J Vet Res. 2025 May 2;86(7). doi: 10.2460/ajvr.25.02.0061. Print 2025 Jul 1.
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.
14 client-owned dogs in a retrospective case series.
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.
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.
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.
呈现关于Venovo静脉支架的单中心数据，作为患有先天性肝内门体分流的犬经皮经静脉线圈栓塞术（PTCE）期间的一种替代选择。
回顾性病例系列中的14只客户拥有的犬。
所有犬均因PTCE干预就诊，并有不同程度的临床症状。犬在PTCE前接受药物治疗。回顾了2020年至2024年使用Venovo支架进行PTCE的犬的病历，以获取相关的围手术期数据、不良事件和结果。
14只平均体重为19.5 kg（标准差，6.9 kg）的犬接受了PTCE并植入了Venovo支架。分流口上方的尾腔静脉平均直径为15.4 mm（标准差，2.8 mm），分流口下方为17.5 mm（标准差，3.7 mm）。每只犬使用单个Venovo支架，中位直径为18.0 mm（四分位间距，14.0至20.0 mm），平均长度为91.4 mm（标准差，21.8 mm）。支架尺寸与腔静脉直径的平均比值在分流口下方为1.0（标准差，0.1），在分流口上方为0.9（标准差，0.1）。所有犬的术后X光片显示支架和线圈位置合适，无向外移位或断裂。
在计划进行PTCE时，Venovo静脉支架是一种可行的支架选择。Venovo支架通常可按1:1的比例与血管匹配，无需对尾腔静脉进行过大尺寸选择。
