The standardisation of terminology of lower urinary tract function: Report from the standardisation sub-committee of the international continence society

This report presents definitions of the symptoms, signs, urodynamic observations and conditions associated with lower urinary tract dysfunction and urodynamic studies, for use in all patient groups from children to the elderly

Paul Abrams

2002

Scholarcy highlights

  • This report presents definitions of the symptoms, signs, urodynamic observations and conditions associated with lower urinary tract dysfunction and urodynamic studies, for use in all patient groups from children to the elderly
  • New or changed definitions are all indicated; recommendations concerning technique are not included in the main text of this report
  • ● Ambulatory urodynamic studies are defined as a functional test of the lower urinary tract, utilising natural filling, and reproducing the subject’s every day activities.*19 ● Natural filling means that the bladder is filled by the production of urine rather than by an artificial medium
  • ● Terminal detrusor overactivity is defined as a single, involuntary detrusor contraction, occurring at cystometric capacity, which cannot be suppressed and results in incontinence usually resulting in bladder emptying.*26
  • ● Urodynamic stress incontinence is noted during filling cystometry and is defined as the involuntary leakage of urine during increased abdominal pressure, in the absence of a detrusor contraction.
  • ● Abnormal detrusor activity can be subdivided: – Detrusor underactivity is defined as a contraction of reduced strength and/or duration, resulting in prolonged bladder emptying and/or a failure to achieve complete bladder emptying within a normal time span. – Acontractile detrusor is one that cannot be demonstrated to contract during urodynamic studies.*36 – Post void residual is defined as the volume of urine left in the bladder at the end of micturition.*37
  • A precise definition and any associated pathophysiology, such as reduced urethral function, or detrusor overactivity/low bladder compliance, should be stated

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