| Grade |
Description (EORTC/RTOG criteria) |
Before instillation |
3 months after instillation |
| I |
Slight epithelial atrophy
Minor telangiectasia (microscopic hematuria) |
- |
9/20 (45%) |
| II |
Moderate frequency
Generalized telangiectasia
Intermittent macroscopic hematuria |
6/20 (30%) |
11/20 (55%) |
| III |
Severe frequency and dysuria
Severe generalized telangiectasia (often with petechiae)
Frequent hematuria
Reduction in bladder capacity (<150 cc) |
14/20 (70%) |
- |
