Progressive pulmonary autograft root dilatation and failure after Ross procedure.

@article{Takkenberg1999ProgressivePA,
  title={Progressive pulmonary autograft root dilatation and failure after Ross procedure.},
  author={Johanna J.M. Takkenberg and Pieter E. Zondervan and Lynne van Herwerden},
  journal={The Annals of thoracic surgery},
  year={1999},
  volume={67 2},
  pages={
          551-3; discussion 553-4
        }
}
We present a case of progressive pulmonary autograft root dilatation and subsequent failure after a Ross procedure. The explanted autograft vessel wall revealed striking histologic findings indicative of chronic media rupture. Examination of another explanted pulmonary autograft root showed similar histologic changes, suggesting a common phenomenon in pulmonary autograft roots. It may be the cause of progressive root dilatation as observed after Ross operations. 
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