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Pharmacotherapy for Bladder Outlet Obstruction in Females

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Female Bladder Outlet Obstruction and Urethral Reconstruction
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Abstract

Lower urinary tract is richly innervated by autonomic and somatic nervous system. The interactions between end-organs and central nervous system happen through an array of neurotransmitters. Acetylcholine (through both muscarinic and nicotinic), norepinephrine, nitric oxide, adenosine triphosphate, serotonin, glutamate, glycine, and gamma-aminobutyric acid are major neurotransmitters. These neurotransmitters are natural targets for pharmacotherapy of voiding dysfunction.

Pharmacotherapeutic agents for VD can be broadly categorized into those three: (1) agents for improvement of bladder contractility, (2) agents for relaxation of internal sphincter/bladder neck, (3) agents for relaxation of external sphincter/pelvic floor. Alpha-1 adrenoceptor blockers are the most widely studied and are clinically used. Onabotulinum toxin A is a neurotoxin that inhibits release of acetylcholine from neuromuscular junction. In small studies on men and women with dysfunctional voiding BoNT injection into external sphincter has shown significant improvement.

There is no FDA-approved agent for management of voiding dysfunction in women. Nevertheless, several agents are clinically being used based on results of small-scale studies in women and experience of use in similar pathologies in men. High-quality randomized controlled trials are warranted in this nascent and orphaned area.

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Agarwal, M.M. (2021). Pharmacotherapy for Bladder Outlet Obstruction in Females. In: Khattar, N., Nayyar, R., Panda, A. (eds) Female Bladder Outlet Obstruction and Urethral Reconstruction. Springer, Singapore. https://doi.org/10.1007/978-981-15-8521-0_11

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  • DOI: https://doi.org/10.1007/978-981-15-8521-0_11

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