Naoki Toya1, Takao Ohki2, Yasutake Momokawa2, Kota Shukuzawa3, Soichiro Fukushima3, Hiromasa Tachihara2, Tadashi Akiba4. 1. Division of Vascular Surgery, Department of Surgery, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa, Chiba, 277-8567, Japan. toyanaoki@gmail.com. 2. Division of Vascular Surgery, Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan. 3. Division of Vascular Surgery, Department of Surgery, The Jikei University Kashiwa Hospital, 163-1, Kashiwashita, Kashiwa, Chiba, 277-8567, Japan. 4. Department of Surgery, The Jikei University Kashiwa Hospital, Kashiwa, Japan.
Abstract
PURPOSE: Renal insufficiency is associated with increased morbidity and death after endovascular aortic aneurysm repair (EVAR). However, the effect of postoperative acute kidney dysfunction on patient outcome has not been fully determined. This study aimed to determine the risk factors of early postoperative renal function decline using chronic kidney disease (CKD) staging and its effect on the clinical outcome. METHODS: A retrospective analysis was performed on a prospectively maintained EVAR database. Pre- and postoperative CKD stages were determined for all patients according to the estimated glomerular filtration rate values. RESULTS: We identified 135 patients who were treated with elective EVAR. CKD stage decline was observed in 25 (19 %) of the patients. Freedom from aneurysm-related death was significantly lower in patients with postoperative CKD progression compared with those with unchanged CKD stage. A shaggy aorta without oral beta-blocker administration and higher preoperative serum creatinine levels (>1.4 mg/dL) were found to be independent predictors of an early postoperative CKD stage decline. CONCLUSIONS: Patients with postoperative CKD progression have an increased frequency of aneurysm-related death. The presence of a shaggy aorta, absence of oral beta-blocker administration and an increased preoperative creatinine level are independent predictors of early postoperative CKD progression.
PURPOSE:Renal insufficiency is associated with increased morbidity and death after endovascular aortic aneurysm repair (EVAR). However, the effect of postoperative acute kidney dysfunction on patient outcome has not been fully determined. This study aimed to determine the risk factors of early postoperative renal function decline using chronic kidney disease (CKD) staging and its effect on the clinical outcome. METHODS: A retrospective analysis was performed on a prospectively maintained EVAR database. Pre- and postoperative CKD stages were determined for all patients according to the estimated glomerular filtration rate values. RESULTS: We identified 135 patients who were treated with elective EVAR. CKD stage decline was observed in 25 (19 %) of the patients. Freedom from aneurysm-related death was significantly lower in patients with postoperative CKD progression compared with those with unchanged CKD stage. A shaggy aorta without oral beta-blocker administration and higher preoperative serum creatinine levels (>1.4 mg/dL) were found to be independent predictors of an early postoperative CKD stage decline. CONCLUSIONS:Patients with postoperative CKD progression have an increased frequency of aneurysm-related death. The presence of a shaggy aorta, absence of oral beta-blocker administration and an increased preoperative creatinine level are independent predictors of early postoperative CKD progression.
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