title: Endovascular treatment of persistent sciatic artery aneurysm with the multilayer stent.
abstract: OBJECTIVE
  To describe the successful management of a symptomatic persistent sciatic artery (PSA) aneurysm using the Multilayer Aneurysm Repair System (MARS).
  
  
  METHODS
  A 50-year-old man with history of smoking, hypertension, and hypercholesterolemia suddenly developed pain in the buttock radiating to the left lower limb, mimicking sciatica. The ∼57×54-mm incomplete type PSA aneurysm was treated with two 14×80- and 14×60-mm MARS devices through a surgical left axillary artery access. There were no periprocedural complications. Thirty-day imaging documented patency of the stents and a minor reduction (∼47×55 mm) in the aneurysm, with slightly hyperdense content and no signs of perfusion. At 6 months, duplex and computed tomographic angiography showed complete thrombosis of the sac, patency of the multilayer stents, and further aneurysm shrinkage (40×37 mm).
  
  
  CONCLUSIONS
  The multilayer stent can alter the hemodynamics inside a peripheral aneurysm to promote sac thrombosis and redirect flow to collaterals originating from the sac.
authors.affiliation: 1 Departments of Cardiovascular Disease and.
authors.forename: Pietro
authors.initials: P
authors.lastname: Modugno
authors.forename: Mariangela
authors.initials: M
authors.lastname: Amatuzio
authors.forename: Carlo Maria
authors.initials: CM
authors.lastname: De Filippo
authors.forename: Enrico Maria
authors.initials: EM
authors.lastname: Centritto
authors.forename: Antonio
authors.initials: A
authors.lastname: Pierro
authors.forename: Luigi
authors.initials: L
authors.lastname: Inglese
mesh_terms: D000783:Aneurysm / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy*; D001158:Arteries / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000503:physiopathology; D057510:Endovascular Procedures / Q000295:instrumentation*; D006439:Hemodynamics; D006801:Humans; D035002:Lower Extremity / Q000098:blood supply*; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D015607:Stents; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D018616:Ultrasonography, Doppler, Duplex; D014654:Vascular Patency
keywords: aneurysm; multilayer stent; persistent sciatic artery; sac shrinkage; sac thrombosis