Effectiveness of prolonged hydrostatic dilatation of bladder.

Thirty-three patients with intractable frequency and 9 patients with hematuria from irradiation cystitis, bladder tumors or both underwent 54 prolonged hydrostatic dilatations of the bladder. Thirty-eitht per cent of patients with frequency had long-lasting improvement and 19 per cent had temporary relief. Eight patients in this group had multiple procedures, having improved temporarily after previous treatments. Six of the 9 patients with hematuria had appreciable palliative relief.