Lin Mary S, Drucker Charles, Tolaymat Besher, Jinwala Felecia, Nagarsheth Khanjan
Division of Vascular Surgery, Department of Surgery, University of Maryland School of Medicine, Baltimore, Md.
J Vasc Surg Cases Innov Tech. 2020 Oct 19;6(4):686-689. doi: 10.1016/j.jvscit.2020.09.013. eCollection 2020 Dec.
Arteriovenous fistulas are known to be one of the most enduring and safe hemodialysis access modalities. However, access preservation can be challenging in the setting of degeneration, including the development of complex pseudoaneurysms. Prolonged compression or thrombin injection can risk thrombosis of the fistula, and covered stent use can predispose the access to infection and other stent complications. We present a case in which endovascular balloon occlusion was used to facilitate the use of ultrasound-guided thrombin injection to resolve a dialysis access pseudoaneurysm by transiently reducing flow and preventing thromboembolism. This method is a safe, effective, and minimally invasive technique that should be considered for salvage of autogenous access compromised by pseudoaneurysm development.
动静脉内瘘是已知最持久且安全的血液透析通路方式之一。然而,在发生退变的情况下,包括复杂假性动脉瘤的形成,内瘘的维护可能具有挑战性。长时间压迫或注射凝血酶可能会导致内瘘血栓形成的风险,而使用覆膜支架可能会使通路易于发生感染及其他支架相关并发症。我们报告一例,其中采用血管腔内球囊闭塞术,通过短暂减少血流并预防血栓栓塞,来辅助超声引导下注射凝血酶以解决透析通路假性动脉瘤。该方法是一种安全、有效且微创的技术,对于因假性动脉瘤形成而受损的自体通路的挽救应予以考虑。