Kayser Ole, Schäfer Philipp
Department of Radiology, University Hospital Schleswig-Holstein, Kiel, Germany.
Ger Med Sci. 2013;11:Doc01. doi: 10.3205/000169. Epub 2013 Jan 14.
Although endovascular transcatheter embolization of arteriovenous fistulas is minimally invasive, the torrential flow prevailing within a fistula implies the risk of migration of the deployed embolization devices into the downstream venous and pulmonary circulation. We present the endovascular treatment of a giant postnephrectomy arteriovenous fistula between the right renal pedicle and the residual renal vein in a 63-year-old man. The purpose of this case report is to demonstrate that the Amplatzer vascular plug (AVP) can be safely positioned to embolize even relatively large arteriovenous fistulas (AVFs). Secondly, we illustrate that this occluder can even be introduced to the fistula via a transvenous catheter in cases where it is initially not possible to advance the deployment-catheter through a tortuous feeder artery. Migration of the vascular plug was ruled out at follow-up 4 months subsequently to the intervention. Thus, the Amplatzer vascular plug and the arteriovenous through-and-through guide wire access with subsequent transvenous deployment should be considered in similar cases.
尽管动静脉瘘的血管内导管栓塞术微创,但瘘管内的湍急血流意味着已部署的栓塞装置有迁移至下游静脉和肺循环的风险。我们介绍了一名63岁男性患者右肾蒂与残余肾静脉之间巨大肾切除术后动静脉瘘的血管内治疗。本病例报告的目的是证明即使是相对较大的动静脉瘘(AVF),也可安全放置Amplatzer血管封堵器(AVP)进行栓塞。其次,我们说明在最初无法通过迂曲的供血动脉推进输送导管的情况下,甚至可以通过经静脉导管将这种封堵器引入瘘管。干预后4个月的随访排除了血管封堵器的迁移。因此,在类似病例中应考虑使用Amplatzer血管封堵器以及动静脉贯穿导丝通路并随后经静脉部署。