@entity1757 associated with XXXX .

@entity1 @entity154 @entity712 @entity1757 @entity439 @entity1002
The most common variety of @entity1757 , a @entity154 , is frequently associated with a so-called @entity439 . Previous studies have suggested that @entity1757 associated with an @entity439 tend to spontaneously decrease in size or close more than defects without such an @entity439 . To better define the natural history of this entity, clinical and catheterization data from 87 @entity1 with @entity1757 and @entity439 were reviewed. The initial evaluation was made at a median age of 0.3 years (range 0.1 to 11), with the final evaluation at a median age of 10 years (range 1.5 to 20) and a median duration of follow-up of 8.6 years (range 1.2 to 18.8). Approximately 75% of the @entity1757 had a small or no @entity1002 at last evaluation. Overall, 48 @entity1 (55%) had no significant change in the size of the defect, and 39 (45%) showed improvement during the period of observation. Only four @entity1 (5%) had spontaneous closure of the defect. Of the 49 @entity1 who presented with a large @entity1002 , with or without @entity712 , 23 (47%) had persistence of a shunt large enough to warrant surgery. When spontaneous improvement occurred, it did so by 6 years of age in all but one @entity1 . Therefore, a continued tendency for a @entity1757 associated with an @entity439 to spontaneously decrease in size or close after this age may be less likely than previously suggested.(ABSTRACT TRUNCATED AT 250 WORDS)
