title: Anatomic changes of target vessels after fenestrated and branched aortic aneurysm repair.
abstract: OBJECTIVE
  Objective of this study was to evaluate the anatomic changes of the stented target vessels after endovascular repair of complex aortic aneurysms.
  
  
  METHODS
  Between July 2011 and December 2013, 53 aortic aneurysms were treated in our department with fenestrated and branched stent-graft devices. Forty-two of these patients were pre- and postoperatively scanned with a high resolution computer tomography (CT) (Cook Zenith® fenestrated or branched, Australia Pty. Ltd., Brisbane, Australia: N.=19; AnacondaTM fenestrated, Vascutek, Glasgow, Scotland, UK: N.=23). The other 11 out of the 53 patients did not receive a CT scan, because of a pre-existing renal failure. In the CT scans we retrospectively evaluated the anatomic vessel deviation at the origin of the target vessel and the vessel shift distal to the stent. For the first measurement the CT scans were loaded into OsiriX MD®, and the pre- and postoperative angles of the target vessels were measured and subtracted. For matching, the CT-scans were normalized at vertebral body lumbar 2. The second measured angle was the maximal measured angle distal to the target vessel stent-graft.
  
  
  RESULTS
  Altogether, 113 target vessels were stented (celiac trunk [CT] 15, superior mesenteric arteries [SMA] 26, renal arteries [RA] 72), with 97 balloon-expandable PTFE stents: 90 Atrium V12 (Maquet Getinge group, Hudson, NH, USA), 7 BeGrafts (Bentley InnoMed, Hechingen, Germany) and 16 self-expandable fluency PTFE stents (Bard, Karlsruhe, Germany). The mean anatomic deviation at the target vessel origin was 28±17.3 and the mean vessel shift distal to the stent was 36.3±18.8. There were no significant differences between the main device and the target vessel stent types.
  
  
  CONCLUSIONS
  Fenestrated and branched stent-graft solutions for aortic aneurysm repair induce changes of the target vessel anatomy. We did not observe significant differences between the several devices.
authors.affiliation: Department of Vascular Surgery European Vascular Center Aachen‑Maastricht RWTH University Hospital, Aachen, Germany - m.jacobs@mumc.nl.
authors.forename: J
authors.initials: J
authors.lastname: Kalder
authors.forename: P
authors.initials: P
authors.lastname: Keschenau
authors.forename: M
authors.initials: M
authors.lastname: Tamm
authors.forename: H
authors.initials: H
authors.lastname: Jalaie
authors.forename: M J
authors.initials: MJ
authors.lastname: Jacobs
authors.forename: A
authors.initials: A
authors.lastname: Greiner
mesh_terms: D000368:Aged; D001014:Aortic Aneurysm / 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; D008297:Male; D011474:Prosthesis Design; D012189:Retrospective Studies; D015607:Stents; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome