• Makoto Hashimoto, Toshiro Ito, Yoshihiko Kurimoto, Ryo Harada, Nobuyoshi Kawaharada, and Tetsuya Higami.
• Department of Cardio-Thoracic Surgery, Sapporo Medical University School of Medicine, South 1, West 16, Chuo-ku, Sapporo 060-8543, Japan.
• Surg. Today. 2013 Feb 1;43(2):136-40.

PurposeTo establish if preoperative arterial blood lactate (Lac) is a factor related to hospital death for patients with a ruptured abdominal aortic aneurysm (rAAA).MethodsThe subjects were 55 patients who underwent surgery for an rAAA in a single institution between July, 2000 and November, 2009. Patients were divided into a survivor group and a non-survivor group. We compared the preoperative Lac levels and other data between the groups.ResultsThere were ten hospital deaths. On univariate analysis, preoperative Lac levels, shock vital, cardiopulmonary resuscitation, Hardman index ≥3, and Glasgow aneurysm score ≥84 were significantly higher and preoperative hemoglobin was significantly lower in the non-survivor group. The postoperative mortality rate tended to increase with preoperative Lac levels. The mortality rate of patients with a preoperative Lac level higher than 9 mmol/l was 86 %. Those factors that had significant association with hospital mortality on univariate analysis were consecutively analyzed using multivariate logistic regression analysis. The multivariate logistic regression analysis revealed that a preoperative Lac level >9 mmol/l was the only independent risk factor of hospital mortality.ConclusionThe preoperative Lac level of patients with a rAAA may be a predictor of their prognosis.

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