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Slow and Steady Method for Advancing Devices Through Tight or Tortuous Anatomy 

Slow and Steady Method for Advancing Devices Through Tight or Tortuous Anatomy
Chapter:
Slow and Steady Method for Advancing Devices Through Tight or Tortuous Anatomy
Author(s):

Robert Evans Heithaus

, Almas Syed

, and Chet R. Rees

DOI:
10.1093/med/9780199986071.003.0059
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date: 30 September 2020

Advancing vascular sheaths, catheters, balloons, stent grafts, or drainage catheters can prove difficult in tight or tortuous anatomy, leading to prolonged procedure and fluoroscopy time. Overcoming the static forces of friction requires greater magnitude of force compared to the kinetic forces of friction. Static forces of friction can result in catheter or device kinking, particularly in tight or tortuous anatomy. By applying slow, steady force (as opposed to multiple isolated applications of force) in a manner described in this chapter, one can advance a device in a slow and steady manner, thus reducing the amount of pain, tissue damage, and potentially fluoroscopy time.

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