Key result
Neoaortic root dilatation can develop 18 years post-arterial switch operation, exceeding prior timeframes.
Why the study?
Neoaortic root dilatation after arterial switch operation has been reported to progress until 11 years post-operation, but later onset is not well documented.
Highlights the need for long-term surveillance after arterial switch operations, as neoaortic root dilation can present as late as 18 years post-surgery.
It has been claimed that neoaortic root dilatation or enlargement with aortic regurgitation is progressive until 11 years after an arterial switch operation. We report a case of neoaortic root dilatation onset occurring 18 years after operation and discuss the pathological features and the possible acting mechanisms.
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Yuan et al. (2008) studied this question. Arterial switch operations can lead to the onset of neoaortic root dilatation 18 years post-surgery, demonstrating that progression can occur beyond the previously assumed 11-year limit.
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