title: A retrospective review of Palmaz stenting of the aortic neck for endovascular aneurysm repair.
abstract: BACKGROUND
  To review the aortic neck characteristics, graft types, and technical results of Palmaz stent placement as an adjunct to endovascular aneurysm repair (EVAR).
  
  
  METHODS
  A retrospective review of 110 consecutive EVAR cases identified 18 cases in which Palmaz stents were placed as an adjunct to EVAR. Graft types, hostile aortic neck features (neck diameter: >26 mm, length: <15 mm, angulation: >60°, reverse taper necks), and treatment success were identified.
  
  
  RESULTS
  Technical success in the placement of a proximal Palmaz stent was achieved in 17 of 18 cases. Palmaz stenting was attempted for the treatment of type I endoleak in 17 of 18 patients. One prophylactic stent was deployed in the setting of hostile neck anatomy. Proximal stent deployment resulted in immediate treatment success of type I endoleaks in 16 of 17 patients-one failure occurred in a patient who presented with a delayed type I endoleak. Analysis of aortic neck anatomy revealed that two of 18 patients had no criteria for a hostile neck, seven had one criterion, and nine met at least two criteria. With respect to stent-graft types, nine of 18 (50%) cases used the Endologix Powerlink, six used Gore Excluder, two used Cook Zenith, and one used Medtronic Talent. With a mean follow-up of 254 days, 16 of 17 type I endoleaks remain resolved.
  
  
  CONCLUSIONS
  With proper patient selection and additional adjunctive treatments, Palmaz stenting can effectively treat proximal type I endoleaks.
authors.affiliation: UCLA Gonda Vascular Center, Ronald Reagan UCLA Medical Center, Los Angeles, CA 90095, USA. sfarley@mednet.ucla.edu
authors.forename: Steven Michael
authors.initials: SM
authors.lastname: Farley
authors.forename: David
authors.initials: D
authors.lastname: Rigberg
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: Jimenez
authors.forename: Wesley
authors.initials: W
authors.lastname: Moore
authors.forename: William
authors.initials: W
authors.lastname: Quinones-Baldrich
mesh_terms: D000368:Aged; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging / Q000601:surgery*; D001027:Aortography / Q000379:methods; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation*; D057867:Endoleak / Q000209:etiology / Q000601:surgery; D057510:Endovascular Procedures / Q000009:adverse effects / Q000295:instrumentation*; D005260:Female; D006801:Humans; D015141:Los Angeles; D008297:Male; D011474:Prosthesis Design; D012189:Retrospective Studies; D015607:Stents; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome