Natural history and management of XXXX .

@entity1 @entity455 @entity1695 @entity439 @entity397 @entity731 @entity1029
Fifty-five @entity1 with 72 @entity439 of the iliac vessels were evaluated retrospectively during a 12-year period (1972 to 1985). @entity731 was found in all @entity439 . Marked male predominance (5:1) and advanced age (mean 74.6 years) characterized this population group. Two thirds of them harbored multiple @entity439 and @entity439 were found primarily to involve the internal iliac artery (12 of 18 @entity1 ). Although symptomatic presentation varied with anatomic location and presence of @entity397 , most @entity1 were either asymptomatic (45%) or had such nonspecific complaints (11%) that diagnosis was often delayed or erroneous. A mass detected during abdominal, rectal, or vaginal examination was found in 39 @entity1 (70%). @entity439 size ranged from 2.5 to 18 cm (mean 5.5 cm) for the entire group. Internal @entity1029 tended to be larger (7.7 cm) yet demonstrated no increased risk of @entity397 , which was encountered in 33% of @entity1 . Elective operative management was undertaken in 26 @entity1 with a mortality rate of 11%. When repair had to be performed as an emergency procedure mortality increased to 33%. @entity439 , resection, or endoaneurysmorrhaphy coupled with graft interposition when necessary did not seem to influence @entity1 survival. Eleven @entity1 treated nonoperatively demonstrated enlargement in three, @entity397 in one, and progressive @entity1695 in one @entity1 . @entity1029 demonstrate expansile growth with @entity455 and therefore should be managed aggressively under elective circumstances.
