Article Text

Download PDFPDF
The “butterfly” sign of the undilatable lesion
  1. T Raina,
  2. J Gunn

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.

The vast majority of patients undergoing percutaneous coronary intervention (PCI) these days are treated with stent insertion uneventfully. Often, in simple cases, pre-dilatation with a balloon is not even performed (so-called “direct” stenting). In more complex cases, varying degrees of resistance of the lesion to balloon expansion are experienced, and these may require multiple balloon pre-dilatations to higher pressure and larger sizes before the stent can be implanted. A truly undilatable lesion is an unpredictable, fearsome and, mercifully, rare finding. It is usually associated with …

View Full Text