title: Preliminary results of adjunctive use of endoanchors in the treatment of short neck and pararenal abdominal aortic aneurysms.
abstract: OBJECTIVE
  To present our initial experience with the use of EndoAnchors for endovascular aneurysm repair (EVAR) of abdominal aortic aneurysms (AAAs) with little to no infrarenal landing zone.
  
  
  BACKGROUND
  EndoAnchors have been reported to assist in the prevention and treatment of type 1a endoleaks in patients with hostile aortic necks who undergo EVAR.
  
  
  METHODS
  Between July 2013 and July 2014, nine patients with AAAs and short proximal aortic necks (i.e., 0-10 mm in length) underwent EVAR. In five patients, utilization of the chimney graft technique was necessary. A mean of 2.5 (range 1-4) visceral vessels underwent chimney graft. The prophylactic use of EndoAnchors was utilized in all 9 patients. The decision to use the EndoAnchors was made in the preoperative planning phase.
  
  
  RESULTS
  Technical success was achieved in 100% of cases. In two cases, type 1a endoleaks were noted before the deployment of any EndoAnchors. In both cases, a final angiogram depicted resolution of the type 1a endoleak after insertion of the EndoAnchors. Mean follow-up time was 8 months. At 30 days, 3 months, and 6 months, 100% of the endografts remained patent and free from type 1a endoleaks. No adverse renal complications or mortality was reported.
  
  
  CONCLUSIONS
  EndoAnchors are an applicable adjunct to EVAR as treatment for short infrarenal neck and pararenal AAAs. Further investigations are needed to determine the durability of this novel application.
authors.affiliation: Department of Vascular Surgery, Baylor College of Medicine, Houston, Texas.|CHI St. Luke's Health-Baylor St. Luke's Medical Center, Houston, Texas.
authors.forename: Edgar Luis
authors.initials: EL
authors.lastname: Galiñanes
authors.affiliation: Department of Cardiology, Texas Heart Institute, Houston, Texas.|CHI St. Luke's Health-Baylor St. Luke's Medical Center, Houston, Texas.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Hernandez
authors.affiliation: Department of Cardiology, Texas Heart Institute, Houston, Texas.|CHI St. Luke's Health-Baylor St. Luke's Medical Center, Houston, Texas.
authors.forename: Zvonimir
authors.initials: Z
authors.lastname: Krajcer
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D015901:Angiography, Digital Subtraction; 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 / Q000517:prevention & control; D057510:Endovascular Procedures / Q000009:adverse effects / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008297:Male; D011474:Prosthesis Design; D012189:Retrospective Studies; D015607:Stents; D053441:Suture Anchors; D013536:Suture Techniques / Q000295:instrumentation*; D013997:Time Factors; D016896:Treatment Outcome
keywords: EVAR; chimney graft; stent graft