This study was a 4-year prospective audit of abdominal aortic aneurysm surgery including 222 aneurysm repairs: 106 elective, 76 urgent and 40 emergency. Twenty-five patients died: four who underwent elective surgery, seven urgent and 14 emergency. The two major causes of death, multiple organ failure and colonic ischaemia, were responsible for 11 of the 25 deaths. The three deaths from myocardial infarction all occurred in patients with a leaking aneurysm. Blood loss was significantly higher in patients with multiple organ failure and in those with colonic ischaemia. Methods to identify patients at high risk of massive blood loss and colonic ischaemia may be a way to reduce mortality.
The outcome at both hospitals is at least as good as other reported series, but it is interesting to note that the hospital which used less pulmonary artery catheters and less intervention (in the form of colloid and inotropes) showed a reduced mortality. These data may be important in assessing the different therapeutic strategies employed postoperatively in the ICU.
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