Postoperative Renal Function After Elective Abdominal Aortic Aneurysm Repair Requiring Suprarenal Aortic Cross-Clamping |
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Authors: | Fabio A Kudo Toshiya Nishibe Keiko Miyazaki Toshifumi Murashita Keishu Yasuda Motomi Ando Masayasu Nishibe |
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Institution: | (1) Department of Cardiovascular Surgery, Hokkaido University School of Medicine, Sapporo, Japan;(2) Department of Surgery, Division of Cardiovascular and Thoracic Surgery, Fujita Health University, Toyoake, Japan;(3) Department of Surgery, Eniwa Midorino Clinic, Eniwa, Japan;(4) Department of Surgery, Division of Cardiovascular and Thoracic Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukake, Toyoake, Aichi 470-1192, Japan |
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Abstract: | Purpose To examine postoperative renal function after suprarenal aortic cross-clamping performed without renal hypothermia in patients undergoing elective abdominal aortic aneurysm (AAA) surgery.Methods Between 1991 and 2000, 18 patients underwent surgery for a juxtarenal AAA, which required a suprarenal aortic cross-clamp. All AAAs were repaired with a proximal anastomosis just below the renal arteries. We divided the patients into two groups according to the duration of the renal ischemia: <45 min (n = 12) and 45 min (n = 6). The postoperative changes in renal function were analyzed.Results There were no hospital deaths and none of the patients needed permanent hemodialysis. The postoperative peak in the serum creatinine level after suprarenal cross-clamping for 45 min was significantly higher than that after cross-clamping for <45 min. The percentage changes in serum creatinine and blood urea nitrogen were correlated positively with the duration of renal ischemia, and were significantly greater in the group with renal ischemia of <45 min than in the group with prolonged renal ischemia ( 45 min).Conclusions Suprarenal aortic cross-clamp without performing renal hypothermia is safe and able to be tolerated well by the patient during elective AAA surgery, although careful attention must be paid to limiting the period of renal ischemia. |
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Keywords: | Abdominal aortic aneurysm Suprarenal cross-clamp Renal function |
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