title: Factors associated with abdominal compartment syndrome complicating endovascular repair of ruptured abdominal aortic aneurysms.
abstract: BACKGROUND
  Endovascular treatment of ruptured abdominal aortic aneurysms (r-AAAs) has the potential to offer improved outcomes. As our experience with endovascular repair of r-AAA evolved, we recognized that the development of abdominal compartment syndrome (ACS) led to an increase in morbidity and mortality. We therefore reviewed our experience to identify risk factors associated with the development of ACS.
  
  
  METHODS
  From January 2002 to December 2004, 30 patients underwent emergent endovascular repair of r-AAA by using commercially available stent grafts. All patients who developed ACS underwent emergent laparotomy. Physiological and clinical parameters were analyzed between patients with and without ACS after endovascular r-AAA repair.
  
  
  RESULTS
  Over the past 3 years, 30 patients underwent endovascular r-AAA repair, and 6 (20%) patients developed ACS. Patients with ACS had a higher incidence of the need for aortic occlusion balloon (67% vs 12%; P = .01), a markedly longer activated partial thromboplastin time (128 +/- 84 seconds vs 49 +/- 31 seconds; P = .01), a greater need for blood transfusion (8 +/- 2.5 units vs 1.8 +/- 1.7 units; P = .08), and a higher incidence of conversion to aortouni-iliac devices because of ongoing hemodynamic instability and an inability to expeditiously cannulate the contralateral gate (67% vs 8%) when compared with patients without ACS. The mortality was significantly higher in the patients with ACS (67%; 4 of 6) compared with patients without ACS (13%; 3 of 24; P = .01).
  
  
  CONCLUSIONS
  ACS is a potential complication of endovascular repair of r-AAA and negatively affects survival. Factors associated with the development of ACS include (1) use of an aortic occlusion balloon, (2) coagulopathy, (3) massive transfusion requirements, and (4) conversion of bifurcated stent grafts into aortouni-iliac devices. We recommend that, after endovascular repair of r-AAA, these patients undergo vigilant monitoring for the development of ACS.
authors.affiliation: Institute for Vascular Health and Disease, Albany, NY 12208, USA. mehtam@albanyvascular.com
authors.forename: Manish
authors.initials: M
authors.lastname: Mehta
authors.forename: R Clement
authors.initials: RC
authors.lastname: Darling
authors.forename: Sean P
authors.initials: SP
authors.lastname: Roddy
authors.forename: Scott
authors.initials: S
authors.lastname: Fecteau
authors.forename: Kathleen J
authors.initials: KJ
authors.lastname: Ozsvath
authors.forename: Paul B
authors.initials: PB
authors.lastname: Kreienberg
authors.forename: Philip S K
authors.initials: PS
authors.lastname: Paty
authors.forename: Benjamin B
authors.initials: BB
authors.lastname: Chang
authors.forename: Dhiraj M
authors.initials: DM
authors.lastname: Shah
mesh_terms: D000005:Abdomen / Q000503:physiopathology / Q000601:surgery*; D000368:Aged; D017542:Aneurysm, Ruptured / Q000601:surgery*; D017544:Aortic Aneurysm, Abdominal / Q000601:surgery*; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects* / Q000295:instrumentation; D003161:Compartment Syndromes / Q000209:etiology* / Q000503:physiopathology / Q000601:surgery; D019299:Decompression, Surgical / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007813:Laparotomy; D008297:Male; D011312:Pressure; D012189:Retrospective Studies; D012307:Risk Factors; D012422:Rupture, Spontaneous; D015607:Stents