title: Results of Open Surgical Repair of Chronic Juxtarenal Aortic Occlusion.
abstract: OBJECTIVE
  The aim of study was to review the results of open surgical repair (OSR) of chronic juxtarenal aortic occlusion (JRAO).
  
  
  METHODS
  We retrospectively reviewed the results of OSR performed in 47 patients (male, 92%; mean age, 59.9±9.3 years [range, 44-79]) with chronic JRAO during the past 21 years. In order to reduce intraoperative renal ischemic time (RIT), we excised a portion of the occluded segment of the infrarenal aorta without proximal aortic clamping. We then performed suprarenal aortic clamping with both renal arteries clamped, removed the proximal aortic thrombus cap, confirmed both renal artery orifices, and moved the suprarenal aortic clamp to the infrarenal aorta to allow renal perfusion and standard aortoiliac reconstruction. We investigated early (<30 days) postoperative surgical morbidity (particularly renal function), operative mortality, and longterm patient survival. We conducted risk factor analysis for postoperative renal insufficiency.
  
  
  RESULTS
  The mean intraoperative RIT was 10.7±5.5 minutes (range, 3-25), including 6 patients who underwent concomitant pararenal aortic thromboendarterectomy. Postoperatively, five (11%) patients had transient renal insufficiency, one had pneumonia, and one patient had an acute myocardial infarction. However, there was no operative mortality or newly developed dialysis-dependent renal failure. Postoperative follow up was available in 36 (77%) patients for a mean period of 6.3 years (range, 1 month-17 years). Kaplan Meier calculations of patient survival at 5 and 10 years after surgery were 91.2% and 83.6%, respectively.
  
  
  CONCLUSIONS
  We have experienced short RIT, acceptable early postoperative results and long-term survival after OSR of chronic JRAO.
authors.affiliation: Department of Surgery, Chungnam National University Hospital, Daejeon.
authors.forename: Shin-Seok
authors.initials: SS
authors.lastname: Yang
authors.affiliation: Division of Vascular Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul.
authors.forename: Young-Wook
authors.initials: YW
authors.lastname: Kim
authors.affiliation: Division of Vascular Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul.
authors.forename: Yang Jin
authors.initials: YJ
authors.lastname: Park
authors.affiliation: Division of Vascular Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul.
authors.forename: Dong-Ik
authors.initials: DI
authors.lastname: Kim
authors.affiliation: Division of Vascular Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul.
authors.forename: Shin-Young
authors.initials: SY
authors.lastname: Woo
authors.affiliation: Division of Transplantation and Vascular Surgery, Department of Surgery, Kyungpook National University School of Medicine, Daegu, Korea.
authors.forename: Seung
authors.initials: S
authors.lastname: Huh
authors.affiliation: Division of Transplantation and Vascular Surgery, Department of Surgery, Kyungpook National University School of Medicine, Daegu, Korea.
authors.forename: Hyung-Kee
authors.initials: HK
authors.lastname: Kim
keywords: Juxtarenal aortic occlusion; Renal complication; Renal ischemic time; Surgical results