[Surgical correction of overactive bladder resistant to standard therapy]

Surgical treatment was given to 45 patients with overactive bladder: transurethral detrusorotomy was made in 21 patients (group 1), bladder hydrodilation (BH) was made in 24 patients (group 2). Detrusorotomy was performed by transurethral median cut of the bladder posterior wall by needle electrode leading to destroyment of intramural sympathic and parasympathic nervous fibres. Hydrodilation of the bladder was made under intravesical pressure equal to systolic arterial pressure with 2 min exposure. On day thirty after the operation regress of the lower urinary tract symptoms was registered in 20 (95.2%) patients of group 1 and 11 (45.8%) patients of group 2. Urge to voiding (UV) disappeared in 90.5% patients of group 1 and in 45.8% of group 2 (p < 0.05), the number of patients with miction pain reduced 6-fold and 1.9-fold, with UV--8.5 and 1.2-fold, respectively (p < 0.05). The number of diurnal mictions in group 1 decreased 3.2-fold vs 1.9-fold in group 2. The bladder size in urgency in group 1 patients increased 2.5-fold, the pressure fell also 2.5-fold. In group 2 these parameters changed only 1.2 times (p < 0.05). Cystometry recorded recurrent detrusor overactivity in 13 (54.2%) patients after hydrodilation and only in 3 (14.3%)--after cut of the bladder wall (p < 0.05). Thus, transurethral detrusorotomy in overactive bladder resistant to conventional treatment is much more effective than hydrodilation. The operation is low invasive and is well tolerated. Simple performance and good short-time results are advantages of this technique.