Retrospective review of 100 cases of endoluminal aortic stent-graft surgery from an anaesthetic perspective

Abstract

One hundred cases of endoluminal aortic stent surgery were retrospectively reviewed and analysed with respect to outcome. The overall mortality rate was consistent with standard rates for open surgical repair. One hundred per cent of patients who developed multiorgan failure died (7), as did 78% of those who developed acute renal failure (9), and 55% of those who had a serum creatinine rise greater than 100 μmol/l (9). Patients given mannitol had an increased incidence of a serum creatinine rise of greater than 100 μmol/l, at 16% versus 4% for those not given mannitol. Patients with documented intra- or postoperative anaemia (Hb ≤ 80 g/l) had a mortality rate of 22% compared to 5% for non-anaemic patients. The mortality rate increased from 3% to 15% if the procedure took more than four hours. The anaesthetic requirements for this new type of surgery are outlined and discussed with respect to these results. The surgical technique is summarized.