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Advanced Technical In the Industry Vocabulary Test

detrusor-sphincter dyssynergia

Also written as: DSD — Detrusor-Sphincter Dyssynergia

Neurogenic condition where the bladder muscle and external urethral sphincter contract simultaneously instead of coordinating properly.

Full Definition

Detrusor-sphincter dyssynergia (DSD) is a serious neurogenic bladder dysfunction where the detrusor muscle contracts at the same time as the external urethral sphincter, preventing normal bladder emptying. This uncoordinated voiding pattern creates high bladder pressures that can damage the upper urinary tract and kidneys. DSD is commonly seen in children with spinal cord injuries, spina bifida, or other neurological conditions affecting the sacral spinal cord. Management typically requires clean intermittent catheterization, anticholinergic medications, and sometimes surgical intervention such as sphincterotomy or bladder augmentation to protect kidney function.

Usage

Usage note: Often abbreviated as DSD; hyphenation is standard in medical literature.

In Context

  • "Urodynamic studies confirmed detrusor-sphincter dyssynergia with dangerously high bladder pressures." — Urodynamic study report
  • "The patient's detrusor-sphincter dyssynergia required immediate intervention to prevent upper tract deterioration." — Pediatric urology emergency consultation

Also known as

DSD detrusor-external sphincter dyssynergia

Contrasted with

coordinated voiding

Don't confuse with

detrusor overactivity sphincter deficiency

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