title: [Aortic dissection spread to the renal arteries: role of renal volumetry after angioplasty].
abstract: OBJECTIVE
  Type A or B aortic dissection can extend to renal arteries, causing a renal ischemia which treatment is usually endovascular. The aim of our study is to show the interest of the renal volumetry in the follow-up of these patients.
  
  
  METHODS
  Twenty-two patients (16 men, mean age 63.4±11.8years, BMI 25.2±3.4kg/m(2)) with a type A or B aortic dissection spread to one or to both renal arteries and followed at Grenoble university hospital were consecutively included. All patients underwent renal angiography with aorto-renal pressure gradients measurements and follow-up by renal volumetry (scanner Siemens(®)). A renal ischemia was defined by a decrease of 20% or more of the volumetry.
  
  
  RESULTS
  Sixteen patients (73%) were hypertensive before the aortic dissection among which ten (62%) were treated. Eight patients (36%) have a significant renal pressure gradient among which five (62%) underwent renal endovascular therapy. The renal volumetry of these five patients remained unchanged while six of 17 patients (36%) without angioplasty have a decreasing volumetry.
  
  
  CONCLUSIONS
  Renal volumetry appeared an effective and attractive option for the follow-up of the patients with aortic dissection spread to the renal arteries. These results should be taken into account to put the indication of an endovascular treatment.
authors.affiliation: Clinique de cardiologie, CHU de Grenoble, BP 217, 38043 Grenoble cedex 09, France. EVautrin@chu-grenoble.fr
authors.forename: E
authors.initials: E
authors.lastname: Vautrin
authors.forename: F
authors.initials: F
authors.lastname: Thony
authors.forename: O
authors.initials: O
authors.lastname: Chavanon
authors.forename: I
authors.initials: I
authors.lastname: Hannachi
authors.forename: G
authors.initials: G
authors.lastname: Barone-Rochette
authors.forename: H
authors.initials: H
authors.lastname: Pierre
authors.forename: J-P
authors.initials: JP
authors.lastname: Baguet
mesh_terms: D000368:Aged; D000784:Aortic Dissection / Q000150:complications / Q000000981:diagnostic imaging* / Q000628:therapy; D000792:Angiography; D000800:Angioplasty, Balloon / Q000379:methods; D017545:Aortic Aneurysm, Thoracic / Q000150:complications / Q000000981:diagnostic imaging* / Q000628:therapy; D001810:Blood Volume; D015992:Body Mass Index; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006785:Hospitals, University; D006801:Humans; D007511:Ischemia / Q000000981:diagnostic imaging* / Q000209:etiology / Q000628:therapy; D007668:Kidney / Q000098:blood supply* / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D012077:Renal Artery / Q000000981:diagnostic imaging*; D012079:Renal Circulation; D012307:Risk Factors; D016896:Treatment Outcome; D014654:Vascular Patency