Neo-aortic root dilation and @entity338 up to 21 years after staged reconstruction for XXXX .

@entity1 @entity1699 @entity886 @entity338 @entity337
OBJECTIVES: We sought to assess the prevalence and progression of neo-aortic root dilation and @entity338 after staged reconstruction for @entity1699 ( @entity1699 ). BACKGROUND: In @entity1699 , the @entity338 as the neo-aortic valve. @entity886 has been observed after arterial switch operation and the Ross procedure. METHODS: @entity1 with @entity1699 born before January 1995 who had the Fontan operation and had serial echocardiograms were included. Echocardiograms were reviewed preoperatively, after each surgical reconstruction, and at most recent follow-up for neo-aortic root size and severity of @entity337 ( @entity337 ). Potential risk factors for @entity886 were assessed. RESULTS: Fifty-three @entity1 met inclusion criteria. Bidirectional superior cavopulmonary anastomosis as an interim procedure was performed in 39 @entity1 (74%). Median duration of follow-up was 9.2 (range 5.1 to 21) years. During follow-up, the neo-aortic root progressively dilated out of proportion to body size over time, with 52 @entity1 (98%) having a Z-score >2 at most recent follow-up. Neo- @entity337 was present in 61% of @entity1 at most recent follow-up, with progression over time in 26 @entity1 (49%). However, neo- @entity337 was more than mild in only three @entity1 . Significantly larger neo-aortic root Z-scores were observed in @entity1 with any degree of neo- @entity337 at most recent follow-up. No other anatomic or clinical variables correlated with severity of neo- @entity337 or root dilation. CONCLUSIONS: After staged reconstruction for @entity1699 , neo-aortic root dilation and neo- @entity337 progress over time. Early volume unloading does not have a beneficial impact on dilation of the neo-aortic root. These findings raise concerns about neo-aortic valve function into adulthood.
