Multilayer stent in the treatment of popliteal artery aneurysms

Abstract

Endovascular repair of popliteal artery aneurysms is an emerging treatment in high risk surgical patients. The location in a functionally demanding anatomical area creates limitations in terms of endograft patency. Technological advancements have been conscripted in an effort to circumvent such constraints. The multilayer stent technology effects through haemodynamic modulation. We used the multilayer stent to treat 6 asymptomatic popliteal artery aneurysms in 3 patients. All procedures were successfully accomplished without any complications. Over a mean follow up period of 9 months, thrombosis occurred in two limbs, and blood flow was restored with thrombolysis, achieving a primary and secondary patency rate at 6 months of 67 % and 100 %, respectively. Partial or complete thrombosis of the aneurysm sac was achieved in all aneurysms. Even though the use of the multilayer stent in popliteal artery aneurysms was safe in the short term, our experience showed that close surveillance is required.

Early Experience With the Multilayer Aneurysm Repair Stent in the Endovascular Treatment of Trans/Infragenicular Popliteal Artery Aneurysms: A Mixed Bag

“…There are a limited number of cases in which the MARS device has been used in PAAs, [10][11][12] although the stent has been deployed elsewhere, 13 such as in the treatment of aortic 13 and visceral aneurysms. 11,12 The physiological difference when comparing the flow mechanics of the aorta and its branches to the infrainguinal vessels is easily appreciable, so results from those studies may not be directly applied to PAAs.…”

“…However, another small series in similarly high-risk patients also brought attention to the risk of stent thrombosis. 10 …”

Popliteaaneurysmaassoziierte Probleme

“…Gegen den Einsatz der Viabahn  spricht zunächst die postoperative Thromboserate (innerhalb von 1-3 Tagen postoperativ), die in zwei von Antonello et al [2] und Fontanelle et al [7] publizierten Studien mit 4-10 % angegeben wurde.…”

Ruptured Aneurysm of Superficial Femoral Artery

“…Несмотря на относительную редкость, аневризмы периферических артерий являются грозной патологией, представляющей реальную угрозу потери конечности и даже жизни больного [7]. Только в конце XX в. развивающиеся эндоваскулярные методы привнесли новизну в хирургию аневризм [8]. Однако открытые реконструктивные операции не утратили свою актуальность и нуждаются в совершенствовании с учетом современных диагностических и технических возможностей [9,10] Проблема хирургического лечения артериальных аневризм не утратила своей актуальности и для своего решения требует от хирурга взвешенного подхода.…”