How is hydrodistention performed in the evaluation of interstitial cystitis/bladder pain syndrome (IC/BPS)?

Updated: Dec 04, 2020
  • Author: Eric S Rovner, MD; Chief Editor: Edward David Kim, MD, FACS  more...
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Answer

Examination of the fully distended bladder should be unremarkable, except perhaps for some mild trabeculation. The diagnostic distention is typically held for 1-2 minutes, and then the bladder is drained. The amount of drainage (bladder capacity under anesthesia) and the color of the effluent are recorded. Characteristically, the last 50-100mL of effluent may be blood tinged (terminal pinking) in patients with interstitial cystitis. The bladder capacity may be reduced in patients with the ulcerative variety of interstitial cystitis, whereas the bladder capacity is normal or only slightly reduced in patients with the nonulcerative form of interstitial cystitis.


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