detrusor-sphincter dyssynergia
Pronunciation: de-TROO-sor SFINK-ter dis-sin-ER-jee-ah
Also written as: DSD — Detrusor-Sphincter Dyssynergia
Neurological condition where the external urethral sphincter contracts inappropriately during detrusor muscle contraction, causing voiding dysfunction.
Full Definition
A form of neurogenic bladder dysfunction characterized by uncoordinated contraction between the detrusor muscle and external urethral sphincter, resulting in functional bladder outlet obstruction. Instead of the normal sphincter relaxation during detrusor contraction, both muscles contract simultaneously, preventing efficient bladder emptying. This condition is commonly seen in children with spinal cord abnormalities, spina bifida, or other neurological disorders. The dyssynergia can lead to high intravesical pressures, incomplete emptying, recurrent infections, and upper urinary tract deterioration. Diagnosis is confirmed through video urodynamics showing simultaneous detrusor and sphincter activity.
Usage
Usage note: Note: DSD abbreviation may also refer to 'disorders of sexual development' - context clarifies meaning.
In Context
- "Video urodynamics confirmed detrusor-sphincter dyssynergia with high-pressure voiding and incomplete emptying." — Urodynamic study report
- "The spina bifida patient's detrusor-sphincter dyssynergia required alpha-blocker therapy and CIC." — Management plan