title: Endoluminal stent-graft relining of visceral artery bypass grafts to treat perigraft seroma.
abstract: OBJECTIVE
  To describe the endovascular treatment of intra-abdominal perigraft seromas associated with small-caliber expanded polytetrafluoroethylene (ePTFE) grafts.
  
  
  METHODS
  Two patients who underwent hybrid repair of thoracoabdominal aortic aneurysms in which renovisceral bypass grafts were implanted presented with large, symptomatic perigraft seromas. The 5- to 8-mm-diameter ePTFE bypass grafts believed to be involved in the seromas were successfully relined with self-expanding Viabahn stent-grafts in percutaneous procedures. The patients' symptoms were relieved, and imaging follow-up (18 and 10 months, respectively) has shown near complete resorption of the seromas.
  
  
  CONCLUSIONS
  It is expected that this minimally invasive technique could be very valuable in treating aortic, renovisceral, and peripheral perigraft seroma.
authors: 1 Clinic for Cardiovascular Surgery, University Hospital Zurich, Switzerland.
authors: Mario
authors: M
authors: Lachat
authors: Maricarmen
authors: M
authors: Romero Toledo
authors: Michael
authors: M
authors: Glenck
authors: Frank J
authors: FJ
authors: Veith
authors: Christian A
authors: CA
authors: Schmidt
authors: Felice
authors: F
authors: Pecoraro
mesh_terms: D017545:Aortic Aneurysm, Thoracic / Q000000981:diagnostic imaging / Q000601:surgery*; D001027:Aortography / Q000379:methods; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation*; D057510:Endovascular Procedures / Q000009:adverse effects / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011138:Polytetrafluoroethylene; D011474:Prosthesis Design; D012086:Reoperation; D049291:Seroma / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D015607:Stents; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014781:Viscera / Q000098:blood supply*
chemical_list: D011138:Polytetrafluoroethylene