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  • Title: Pure stress leakage symptomatology: is it safe to discount detrusor instability?
    Author: James M, Jackson S, Shepherd A, Abrams P.
    Journal: Br J Obstet Gynaecol; 1999 Dec; 106(12):1255-8. PubMed ID: 10609718.
    Abstract:
    OBJECTIVE: To determine whether the combination of a urological history and urinary diary, with rigorous selection criteria, can be used to define a group of women on whom urodynamic assessment is unnecessary prior to offering surgery for urinary stress incontinence. DESIGN: Retrospective review of the urodynamic records of women attending for assessment between January 1992 and December 1996. SETTING: Urodynamic Department, Southmead Hospital, Bristol. POPULATION: 5193 women who attended the urodynamic clinic during the five year study period. METHODS: Self-completion of a urinary diary in the preceding week before urodynamic assessment and a detailed urological history before undergoing cystometry by all women in the study period. Data were entered onto a computer database. Women reporting stress incontinence in the absence of bladder filling symptoms, with a normal urinary diary showing daytime frequency of seven times or less and nocturia of no more than once, had the results of their filling cystometry analysed. RESULTS: Of 5193 women, 555 had symptoms of pure stress incontinence and a normal urinary diary. Incontinence was confirmed objectively in 81%, with 9% having incontinence secondary to detrusor instability; 5% had detrusor instability as the sole cause of their incontinence with 4% having a mixed picture of detrusor instability incontinence and urethral sphincter weakness. CONCLUSION: Genuine stress incontinence cannot be diagnosed reliably from a urological history, even when rigorous selection criteria are used in combination with a normal urinary diary. Without cystometry, incontinence secondary to detrusor instability will be missed.
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