title: Visceral and renal artery complications of suprarenal fixation during endovascular aneurysm repair.
abstract: BACKGROUND
  The effect of suprarenal fixation of endovascular grafts on renal and visceral artery function remains undefined. This study aimed to determine renal and visceral artery complications following suprarenal fixation during endovascular aneurysm repair (EVR).
  
  
  METHODS
  Prospectively collected data from 112 patients who received suprarenal fixation (group SF) and 36 patients who received infrarenal fixation (group IF) in a single institution from December 1997 to April 2005 were reviewed retrospectively. Median follow-up was 26 months (range 0.1-101 months).
  
  
  RESULTS
  Stent struts extended to or above the level of 106 (94.6%) right renal arteries, 104 (92.9%) left renal arteries, 49 (43.8%) superior mesenteric arteries (SMA), and 7 (6.3%) celiac arteries in group SF. This group had 2 (1.8%) unintentional main renal artery occlusions, of which 1 was successfully treated at the first procedure with a renal stent. There was 1 (0.9%) SMA occlusion which resulted in bowel infarction and death. Group IF had no renal or visceral artery complications. There were no late-onset occlusions or infarcts. There was no significant difference in median serum creatinine between groups SF and IF at 1 month (p = 0.18) and 6 months to 12 months (p = 0.22) follow-up. The change in serum creatinine over time was also not significantly different within each group (SF, p = 0.09; IF, p = 0.38).
  
  
  CONCLUSIONS
  In this study, suprarenal fixation was associated with a very small incidence of immediate renal and visceral artery occlusion. There did not appear to be any medium-term sequelae of suprarenal fixation.
authors.affiliation: St. George's Vascular Institute, Blackshaw Road, London, SW17 0QT, UK.
authors.forename: Edward
authors.initials: E
authors.lastname: Choke
authors.forename: Graham
authors.initials: G
authors.lastname: Munneke
authors.forename: Robert
authors.initials: R
authors.lastname: Morgan
authors.forename: Anna-Maria
authors.initials: AM
authors.lastname: Belli
authors.forename: Joseph
authors.initials: J
authors.lastname: Dawson
authors.forename: Ian M
authors.initials: IM
authors.lastname: Loftus
authors.forename: Robert
authors.initials: R
authors.lastname: McFarland
authors.forename: Thomas
authors.initials: T
authors.lastname: Loosemore
authors.forename: Matthew M
authors.initials: MM
authors.lastname: Thompson
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017130:Angioplasty; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery*; D001027:Aortography; D001807:Blood Vessel Prosthesis; D002445:Celiac Artery / Q000000981:diagnostic imaging; D003404:Creatinine / Q000097:blood; D005260:Female; D005500:Follow-Up Studies; D017052:Hospital Mortality; D006801:Humans; D007422:Intestines / Q000098:blood supply; D007511:Ischemia / Q000000981:diagnostic imaging / Q000209:etiology / Q000401:mortality; D008297:Male; D017538:Mesenteric Artery, Superior / Q000000981:diagnostic imaging; D008641:Mesenteric Vascular Occlusion / Q000209:etiology* / Q000401:mortality / Q000628:therapy; D008875:Middle Aged; D012078:Renal Artery Obstruction / Q000209:etiology* / Q000401:mortality / Q000628:therapy; D012189:Retrospective Studies; D015607:Stents; D014057:Tomography, X-Ray Computed
chemical_list: D003404:Creatinine