EXIT CATHETERIZATION

Abstract
We have described a new, and we believe highly practical, extension of our ability to maneuver within and achieve access via vascular freeways. In brief, a catheter system is used to obtain a controlled probe path outwards through the vascular wall at selected sites and for a variety of potentially useful purposes. The technique requires the professional skill and the high quality radiologic equipment used for conventional guided catheterization, plus simple instruments which can be homemade. The clinical role to be played by this technique remains to be conclusively established; we believe its feasibility has been clearly shown and that it warrants the objective consideration of others.

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