title: Applicability of Zenith p-branch Standard Fenestrated Endograft in Our Series.
abstract: BACKGROUND
  In the endovascular treatment of abdominal aortic aneurysm (AAA) with short or absent infrarenal neck, the delay in the availability of fenestrated device and its high cost, have led to the manufacture of standardized models. Another option is the endografts with stents in parallel; however, regulated criteria for their use and long-term studies are lacking. The aim of this study was to assessed whether the AAA treated with fenestrated device or stents in parallel in our department, complied with the characteristics for the placement of the new endograft p-branch(®). Furthermore, the differences between the p-branch and the implanted prosthesis were analyzed.
  
  
  METHODS
  Single-center and descriptive study of 41 aneurysms treated consecutively from 2008 to 2015. The anatomic characteristics analyzed were: relative distances between the visceral arteries, time position, diameter in the sealing area and number of fenestrations, and its compatibility with the p-branch.
  
  
  RESULTS
  The anatomic compatibility rate with the p-branch options was 73.2% (30 cases). Of the 11 incompatible cases, 6 were due to misalignment of the visceral branches, 2 due to the aortic neck diameter being greater, another because the femoral access was inappropriate, and 2 more due to the fenestration configuration. Of the 30 cases in which compatibility existed, in 12 (40%) the configuration used coincided with the p-branch. In 13 cases, the number of fenestrations was higher than those actually used, with 23 fenestrations carried out and 39 hypothetical fenestrations with the new endograft. In the 5 remaining cases, a fenestration for the celiac trunk was necessary to achieve an adequate seal.
  
  
  CONCLUSIONS
  The p-branch could meet the needs of three-quarters of the aortic anatomies of our series, with favorable expectations on cost and waiting time. However, in most cases either a higher number of fenestrations are needed for visceral arteries or the proximal seal was shorter than would be ideal.
authors.affiliation: Servicio de Angiología, Cirugía Vascular y Endovascular, Hospital Universitario Doctor Peset, Valencia, España. Electronic address: pbargay1798@gmail.com.
authors.forename: Pau
authors.initials: P
authors.lastname: Bargay-Juan
authors.affiliation: Servicio de Angiología, Cirugía Vascular y Endovascular, Hospital Universitario Doctor Peset, Valencia, España.
authors.forename: Francisco Julián
authors.initials: FJ
authors.lastname: Gómez-Palonés
authors.affiliation: Servicio de Angiología, Cirugía Vascular y Endovascular, Hospital Universitario Doctor Peset, Valencia, España.
authors.forename: Luis Ariel
authors.initials: LA
authors.lastname: Pepén-Moquete
authors.affiliation: Servicio de Angiología, Cirugía Vascular y Endovascular, Hospital Universitario Doctor Peset, Valencia, España.
authors.forename: Ángel
authors.initials: Á
authors.lastname: Plaza-Martínez
authors.affiliation: Servicio de Angiología, Cirugía Vascular y Endovascular, Hospital Universitario Doctor Peset, Valencia, España.
authors.forename: Jose Miguel
authors.initials: JM
authors.lastname: Zaragozá-García
authors.affiliation: Servicio de Angiología, Cirugía Vascular y Endovascular, Hospital Universitario Doctor Peset, Valencia, España.
authors.forename: Sara Mercedes
authors.initials: SM
authors.lastname: Morales-Gisbert
mesh_terms: D059925:Anatomic Landmarks; 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*; D000072226:Computed Tomography Angiography; D057510:Endovascular Procedures / Q000009:adverse effects / Q000295:instrumentation*; D006801:Humans; D011474:Prosthesis Design; D013030:Spain; D015607:Stents; D013997:Time Factors; D016896:Treatment Outcome