Clinical Study

Effects of Catheter Tip Location on the Spread of Sensory Block Caused by a Continuous Thoracic Paravertebral Block: A Prospective, Randomized, Controlled, Double-Blind Study

Table 3

Postoperative pain scores on the numerical rating scale.

Group A  
(n = 22)
Group P  
(n = 25)
P-value

Pain at rest
 2 h after surgery2.5 (0.75–4 )2 (0–3 )0.32
 24 h after surgery1 (0–2 )2 (0–3 )0.20
Pain during coughing
 2 h after surgery3 (1–5 )2 (0–4 )0.44
 24 h after surgery2.5 (1.75–4 )3 (2–5 )0.15
Pain during movement
 2 h after surgery3 (1–4.25 )2 (0.5–4.5 )0.51
 24 h after surgery2.5 (1.75–4.25 )4 (2.5–5 )0.075

The data are shown as the median (interquartile range [range]). The P-values were calculated using the Mann-Whitney U test.