The neurogenic overactive bladder. Classification based on urodynamics.

The aetiology and pathogenesis of bladder overactivity are very variable and the classification is rather crude. By careful interpretation of clinical findings and urodynamic assessments, refinement of the diagnosis is possible. From a therapeutic and prognostic stand-point, it is of interest to distinguish between "idiopathic detrusor instability" and the "uninhibited overactive bladder". Based on neurological investigation and cystometric recordings, including the ice water test, characteristics of the 2 entities are described.