The purpose of the study was to estimate which factors could have effect on successful outcome of surgery in patients operated on for ruptured abdominal aortic aneurysm (RAAA). The analysis referred to 66 patients operated upon from 1992 to 1995. The specification of all factors which could bring the influence on the successful result of the surgical treatment, was done. The statistical analysis was taken using the Yule-Kendall test and according to it for each factor the risk coefficient Q (from 0.8 to 1.0) was suggested. The group of factors conditioning in each case the failure of surgical procedure was noticed. There were differences in mortality after surgical treatment of RAAA -from 41.2% to 83.3%, mean 63.6%. The mortality of 100% was ascertained in patients with Q above 3.5. The correlation between number of patients with expected risk factors and increasing mortality rate was done. This method is useful for explaining divergences in results of surgical treatment in patients with RAAA and may be helpful for qualification of patients for surgical procedure.
