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Concept
Neurogenic bladder dysfunction
Summary
Neurogenic bladder dysfunction, or neurogenic bladder, refers to urinary bladder problems due to disease or injury of the central nervous system or peripheral nerves involved in the control of urination. There are multiple types of neurogenic bladder depending on the underlying cause and the symptoms. Symptoms include overactive bladder, urinary urgency, frequency, incontinence or difficulty passing urine. A range of diseases or conditions can cause neurogenic bladder including spinal cord injury, multiple sclerosis, stroke, brain injury, spina bifida, peripheral nerve damage, Parkinson's disease, or other neurodegenerative diseases. Neurogenic bladder can be diagnosed through a history and physical as well as imaging and more specialized testing. Treatment depends on underlying disease as well as symptoms and can be managed with behavioral changes, medications, surgeries, or other procedures. The symptoms of neurogenic bladder, especially incontinence, can have a significant impact on quality of life.
There are different types of neurogenic bladder depending on the underlying cause. Many of these types may have similar symptoms.
Uninhibited bladder is usually due to damage to the brain from a stroke or brain tumor. This can cause reduced sensation of bladder fullness, low capacity bladder and urinary incontinence. Unlike other forms of neurogenic bladder, it does not lead to high bladder pressures that can cause kidney damage.
In spastic neurogenic bladder (also known as upper motor neuron or hyper-reflexive bladder), the muscle of the bladder (detrusor) and urethral sphincter do not work together and are usually tightly contracted at the same time. This phenomenon is also called detrusor external sphincter dyssynergia (DESD). This leads to urinary retention with high pressures in the bladder that can damage the kidneys. The bladder volume is usually smaller than normal due to increased muscle tone in the bladder. Spastic neurogenic bladder is usually caused by damage to the spinal cord above the level of the 10th thoracic vertebrae (T10).
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