Evaluation of treatment response to drugs in benign prostatic hyperplasia.

Relevant factors, both simple and complicated, for the evaluation of the treatment of outlet obstruction secondary to BPH have been discussed in the context of defining the components of an adequate trial of nonsurgical or surgical treatment for this entity. Some systematic assessment of symptomatology and a baseline minimal urodynamic evaluation should be the least common denominator for all patients entered into such studies. Long- and short-term outcomes must be considered.