Coronary artery dilatation requiring high inflation pressure.

@article{Bush1991CoronaryAD,
  title={Coronary artery dilatation requiring high inflation pressure.},
  author={Charles A. Bush and Joseph F. Ryan and Alessandro Orsini and Willard W. Hennemann},
  journal={Catheterization and cardiovascular diagnosis},
  year={1991},
  volume={22 2},
  pages={112-4}
}
A patient with rigid coronary lesions refractory to balloon dilatation is described. A Cordis Orion fixed wire balloon able to withstand 20 bar was required for successful dilatation.