Assessment of the efficiency of endovesical laser treatment of urinary bladder tumors on the basis of polyamine content measured in the eluent.

: Authors describe a new analytical method for monitoring the treatment of vesicular tumors. Chromatographic analysis of the polyamine content of the eluent allows differential diagnostic judgement of the malignity of the laser treated tumorous tissue. The practical applicability of the method is demonstrated and evaluated on the basis of the analysis of 88 clinical cases.