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Beta-adrenergic activity in human proximal urethra: a study with terbutaline
The Journal of Urology
|December 1, 1980
Summary
Beta-adrenergic stimulation significantly reduces maximum urethral closure pressure in patients with neurogenic bladder dysfunction. This finding suggests a role for beta-2 agonists in managing urethral function in these conditions.
Area of Science:
- Urology
- Pharmacology
- Neuroscience
Background:
- Neurogenic bladder dysfunction affects patients with spinal cord injury or neurogenic diseases.
- Urethral closure pressure is critical for maintaining continence.
- Beta-adrenergic receptors are present in the proximal urethra.
Purpose of the Study:
- To investigate the effect of beta-adrenergic stimulation on urethral closure pressure.
- To determine the role of beta-2 agonists in neurogenic bladder dysfunction.
Main Methods:
- Studied 15 patients with neurogenic bladder dysfunction.
- Measured maximum urethral closure pressure before and after terbutaline administration.
- Terbutaline, a beta-2 agonist, was administered subcutaneously.
Main Results:
- A significant average decrease of 40.46% in maximum urethral closure pressure was observed.
- The decrease in pressure was statistically significant (p < 0.001).
Conclusions:
- Beta-adrenergic activity, specifically via beta-2 agonism, can decrease urethral closure pressure.
- These findings have potential clinical implications for managing urethral function in neurogenic bladder.
- Further research is warranted to explore therapeutic applications.