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Neurourol Urodyn. 2012 Apr;31(4):541-3. doi: 10.1002/nau.21241. Epub 2012 Jan 24.

The effect of rectal distension on bladder function in patients with overactive bladder.

Author information

1
Arizona Urogynecology, Mesa, AZ, USA. drmoakl@gmail.com

Abstract

AIMS:

To investigate the effect of rectal distension on bladder sensation volumes and the number of detrusor contractions in patients with overactive bladder (OAB) symptoms.

METHODS:

A prospective randomized study included patients with OAB symptoms. Multichannel urodynamic studies were completed with and without rectal balloon distension. Bladder sensation volumes and detrusor contractions were compared.

RESULTS:

Twenty-six patients were included in the study. The mean age was 67 years and mean BMI was 28.3 kg/m(2) . Bladder sensation volumes were lower with rectal distention as follows: normal desire to void (139 ml SD, ±114 vs. 197 ml SD ±150, P = 0.01), strong desire to void (260 ml SD ±171 vs. 330 ml SD ±172, P = 0.01), and maximum cystometric capacity (326 ml SD ±183 vs. 403 ml SD ±180, P = 0.0001). There was no difference in the number of detrusor contractions or the bladder volume at which the first detrusor contraction had occurred with and without rectal distension.

CONCLUSION:

Rectal distention in patients with OAB symptoms significantly lowered bladder sensation volumes (normal desire, strong desire, and maximal capacity).

PMID:
22275153
DOI:
10.1002/nau.21241
[Indexed for MEDLINE]
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