Comparison between Tramadol and Butorphanol for Treating Postoperative Catheter-Related Bladder Discomfort: A Randomized Controlled Trial

Figure 2

CRBD score (a) and VAS score (b) in butorphanol and control groups at different time points. Time process, T0: 0 min, T1: 5 min, T2: 15 min, T3: 30 min, T4: 1 h, T5: 6 h.

(a)

(b)