Karl-Erik Andersson led the review process.
Original Basic Science Article
Version of Record online: 28 OCT 2011
Copyright © 2011 Wiley Periodicals, Inc.
Neurourology and Urodynamics
Volume 31, Issue 1, pages 174–177, January 2012
How to Cite
Kaddumi, E. G., Qnais, E.Y. and Allouh, M.Z. (2012), Effect of esophagus distention on urinary bladder function in rats. Neurourol. Urodyn., 31: 174–177. doi: 10.1002/nau.21173
Conflict of interest: none.
- Issue online: 23 JAN 2012
- Version of Record online: 28 OCT 2011
- Manuscript Accepted: 22 MAY 2011
- Manuscript Received: 21 MAR 2011
- Deanship of Scientific Research and Graduate Studies in the Hashemite University
- pelvic organs;
- vagus nerve;
- viscero-visceral interaction
Micturition process is a spinobulbospinal reflex that is affected by the viscero-visceral interactions due to convergent inputs into spinal and/or supraspinal centers controlling that reflex. Although interaction between bladder and other pelvic organs, such as colon, are well studied, the viscero-visceral interaction between urinary bladder and internal organs in other regions are rarely studied.
In the present study, continuous filling cystometry recordings, in male rats, were used to investigate the effects of mechanical stimulation of distal-esophagus (distention), as well as, electrical stimulation of abdominal branches of the vagus nerve on urinary bladder micturition cycles.
Distal esophagus distention and electrical stimulation of the vagus nerve significantly increased the micturition frequency through decreasing the time of the storage phase of the micturition cycle. However, bilateral cervical vagotomy eliminated the effects of distal esophagus distention and electrical stimulation of vagus nerve on micturition cycles.
The results of this study indicate that there is a viscero-visceral interaction between esophagus and urinary bladder, which is mediated through vagal afferents. Understanding the properties of the viscero-visceral interactions affecting the urinary bladder will help in the diagnosis and management of micturition problems. Neurourol. Urodynam. 31:174–177, 2012. © 2011 Wiley Periodicals, Inc.