Lotan - Figure 26

Reduce Number of Cystoscopic Procedures

FIG. 26:  One other potential use for urine-based biomarkers is to reduce the number of cystoscopic procedures.  This is a potential use, as there have been no prospective studies.  The advantage of such biomarkers is that they may reduce the frequency of cystoscopies, but this should be primarily for low-grade, early-stage tumors where progression rates are low.  The disadvantage is that these may miss a recurrence, so it might be risky to do this for high-grade cancer.  There is also concern for false-positive findings, which might increase patient anxiety and increase cost due to the additional workup that might be necessary.