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One stage or two stage treatment of colorectal cancer associated to abdominal aortic aneurysm: morbidity and mortality.

The coexistence of colorectal cancer and abdominal aortic aneurysm has been observed with increasing frequency, raising several questions about therapeutic and surgical strategies for management of both diseases. This study has reviewed 440 cases (359 cases analyzed) of colorectal cancer associated with abdominal aortic aneurysm recovered in the literature from year 1987 to 2010. In 120 cases, patients were treated in one stage; in 239 cases, they were treated in two stages. The treatment in two stages was associated with a morbidity of 26.4%, with a mortality of 5% and prosthetic infection of 0.8%. The treatment in one stage had rates of complications and mortality of 13.3% and 4.2% respectively and no cases of prosthetic infection. Analysis of the literature shows that the treatment in two stages exposes patients to a higher risk of complications and prosthetic infection.