Funtional voiding disorder is characterized by symptoms referable to the genitourinary organs without organic obstruction or neurovesical dysfunction. In an attempt to understand possible mechanisms of symptoms of functional voiding disorder in
young
male adult, we retrospectively reviewed the urodynamic findings of 51 men with functional voiding disorder between the ages of 19 and 51 (mean 40.7 years). Presenting symptoms are divided into three groups: 1) Sx. Of irritation(irritation group)
in
17
patients; 2) Sx. Of bladder outlet obstruction(BOO group) in 25 patiednts; 3) Sx. Of bladder outlet obstruction with episodes of overdistention (overdistention group) in 9 patietns. On filing cystometry, time of first filling sense and urge sense
was
delayed significnatly in overdistention group and involumtary contraction was found in 5 patients with BOO(20%), in 3 patients with irritation(18%), and in 1 patients with episodes of overdistention. In overdistention group, maximal voiding
detrusor
pressure was significnalty lower and amount of postuoiding residual urine was significanlty larger than other two group on pressure/flow study. Total voiding time and time to maximal uroflow rate were delayed significantly in BOO and
overdistention
group. Pseudo detrusor-sphincter-dyssynergia was found in 3 patients among 25 patients with BOO. Therefore, we were able to find correlations between specific symptomatic group and urodynamic parameters by this result. Results of urodynamic
assessment
were divided into 5 categories: Impaired detrsor contility(IDC), detrusor instability(DI), obstruction, sensory urge syndrome, and equivocal studies. DI was found in 20% of patients with irritation of BOO. IDC was found in 80% of patients with
episodes
of overdistention and in 24% of patients with BOO. Thorough care is necessary in determining the treatment modality, and in follow up evaluation for patients showing IDC, DI or obstruction on urodynamic study. Conclusively, urodynamic study is
thought
to afford the opportunity in fdentifying these specific voiding disorder.
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