It was not until 1923 that Leriche1 first described the syndrome resulting from the arteriosclerotic obliteration of the lower abdominal aorta, and in 1946 dos Santos2 succeeded in the first direct surgical attack on the obliterative process of the distal aorta through a thromboendarterectomy. Because the surgical methods of handling this condition are still in a developmental stage, it was considered of value to summarize our series of 33 cases treated surgically during the period from 1953 through 1957.
Complete or incomplete occlusion of the distal aorta and the common iliac arteries produces a somewhat varied group of symptoms. The onset is usually gradual, the first symptoms appearing in most of these patients in the fifth decade of life and in a few in the fourth and sixth decades, but in none after 60 years of age (Fig. 1). It is therefore a condition appearing