From: Preoperative education with image illustrations enhances the effect of tetracaine mucilage in alleviating postoperative catheter-related bladder discomfort: a prospective, randomized, controlled study
Tetracaine group (n = 30)
Image group (n = 30)
P value
0.5 h
0 (0%)
–
1 h
2 (6.7%)
0.492
2 h
5 (16.7%)
0.052
6 h
4 (13.3%)
0.112