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Signs
 
 

Augmentation Test

 
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Overview

  • Test For

  • Inflow stenosis
  • How to Perform

  • Use a finger to occlude outflow from the fistula a few centimetres from the anastomosis.
  • Interpretation

  • Normal - the fistula becomes hyperpulsatile, and the thrill disappears.
  • Inflow stenosis - the fistula remains weakly pulsatile
  • Accessory vein - the fistula becomes hyperpulsatile, and the thrill persists..
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