Marjan U. Mujib, Marc A. Passman, Francisco Alcocer, Thomas C. Matthews, Marc A. Patterson, Bart R. Combs, Bruce G. Lowman, William D. Jordan
Surgery, University of Alabama at Birmingham, Birmingham, AL.
OBJECTIVES: To investigate the changing trend of mortality rates from ruptured and non-ruptured abdominal aortic aneurysm (AAA) in the population of United States over last 30 years.
METHODS: Using publicly available compressed mortality data files and year 2000 U.S. population as the standard, we estimated age-adjusted mortality rates/100,000 with ruptured and non-ruptured AAA for patients aged ≥65 years, men and women, and all races. Mortality trends were analyzed between 1979 and 2007 in the US.
RESULTS: In 1979, the national age-adjusted ruptured AAA mortality rate was 21.5/100,000 with minimal change in 1990 (20.6/100,000). The mortality rate declined sharply after 1991 from 20.1/100,000 in 1991 to 14.8/100,000 in 1999, (26% decline); whereas the rate dropped more dramatically from 14.6/100,000 in 2000 to 8.8/100,000 in 2007, (40% reduction) (Figure). The decline in age-adjusted ruptured AAA mortality rate from 1979 to 2007 was more pronounced for males (66%) than females (44%). Age-adjusted mortality rates for non-ruptured AAA remained steady over the last three decades (Figure).
CONCLUSIONS: Over a 30-year time period, there has been a decrease in mortality for ruptured AAA after 1990. Further study is required to assess the impact of operative management, more frequent elective repair, or endovascular techniques on the improved outcomes for AAA mortality.
AUTHOR DISCLOSURES: F. Alcocer, Nothing to disclose; B. R. Combs, Nothing to disclose; W. D. Jordan, Nothing to disclose; B. G. Lowman, Nothing to disclose; T. C. Matthews, Nothing to disclose; M. U. Mujib, Nothing to disclose; M. A. Passman, Nothing to disclose; M. A. Patterson, Nothing to disclose
Figure: Age-adjusted mortality trend for abdominal aortic aneurysm (AAA): U.S. National Data from 1979-2007
Posted April 2012