Treatment of Juxtarenal Aortic Aneurysm With the Multilayer Stent

Abstract

This case shows that the use of an uncovered multilayer stent reduces the flow in the aneurysm but preserves perfusion of the branch arteries, which is impossible with covered stents.

Flow-diverting stents for the treatment of arterial aneurysms

“…These include a 16-year-old girl with a tuberculous thoracoabdominal aneurysm, 17 a 48-year-old HIVpositive patient with suprarenal and infrarenal aortic aneurysms, without an established infectious cause, 14 and an 81-year-old man with multiple comorbidities. 16 The Cardiatis Multilayer Stent was used in all patients. Patients were monitored for 12 to 18 months, and all covered branch vessels remained patent.…”

“…[6][7][8][9] Two were included in the analysis. 7,9 Of 14 articles that we considered, 12 reported the use of FDSs in arterial aneurysms (Table I), 1,7,[9][10][11][12][13][14][15][16][17][18] one in thoracoabdominal dissection, 19 and one in carotid blowout syndrome. 20 The full texts of these articles were retrieved and reviewed.…”

Three-Year Outcomes With the Multilayer Flow Modulator for Repair of Thoracoabdominal Aneurysms

“…The clinical benefits of this flow-modulating technology in the treatment of TAAA, type B dissection, juxtarenal aortic aneurysm, and peripheral and visceral artery aneurysm have been suggested in case reports and registry data 11,[19][20][21][22][23][24][25][26][27][28][29][30][31] and a comparative benchtop study. 32 We present 3-year follow-up for the prospective multicenter STRATO trial of the MFM in high-surgical-risk patients with TAAA.…”

Endovascular repair of a juxtarenal saccular aneurysm using the Multilayer Flow Modulator: report of the first case performed in a Public Hospital in Brazil

“…18,19 More recently, a new concept in treatment of arterial aneurysms was introduced with Multilayered uncovered self-expanding stents that offer high radial strength and are manufactured from fibers woven from cobalt alloy (Phynox): known commercially as the Multilayer Flow Modulator (MFM), the objective of this type of stent is to redirect blood flow in such a manner as to remove pressure from within the aneurysm sac, preventing it from rupturing. [5][6][7][8][10][11][12] The MFM's three-dimensional arrangement of threads in layers is designed to be capable of changing the flow regime in the aneurysm sac interior from turbulent to laminar, encouraging the formation of organized and stable thrombi in the interior of the sac. Successful clinical results in the form of thrombosis of the aneurysm, reduction of the aneurysm and patency of visceral branches were achieved in around 40% of aneurysms involving visceral arteries.…”

“…[4][5][6][7][8][9][10][11][12][13][14] We describe the case of patient with very high cardiological surgical risk and multiple comorbidities suffering from a juxtarenal saccular AAA. The patient's condition meant that conventional surgery would be high risk; the patient also had a history of laparotomy and segmental enterectomy because of mesenteric ischemia.…”