Improved Analgesic Effect of Paravertebral Blocks before and after Video-Assisted Thoracic Surgery: A Prospective, Double-Blinded, Randomized Controlled Trial
Table 2
Comparison of VAS in the 72 h postoperative period among the three groups.
Group A
Group B
Group C
value
During rest
Before surgery
0 (0–0)
0 (0–0)
0 (0–0)
0.762
1 h after surgery
0 (0–0)
0 (0–0)
0 (0–0)
0.165
8 h after surgery
0 (0–2.25)
0 (0–2.00)
0 (0–1.25)
0.991
24 h after surgery
2.00 (0–2.00)
2.00 (0–2.00)
2.00 (0–2.00)
0.981
48 h after surgery
0 (0–2.00)
0 (0–2.00)
0.5 (0–1.25)
0.711
72 h after surgery
0 (0–0)
0 (0–0)
0 (0–0.25)
0.560
During rotation of the homolateral arm
Before surgery
0 (0–0)
0 (0–0)
0 (0–0)
0.762
1 h after surgery
0 (0–2.00)
0 (0–0)
0 (0–0)
0.140
8 h after surgery
0 (0–2.50)
0 (0–2.00)
1.5 (0–2.00)
0.937
24 h after surgery
2.00 (2.00–3.00)
2.00 (2.00–4.00)
2.00 (2.00–3.25)
0.877
48 h after surgery
2.00 (0–2.00)
2.00 (2.00–2.00)
2.00 (1.00–2.00)
0.954
72 h after surgery
0 (0–1.00)
0 (0–2.00)
0 (0–2.00)
0.689
While coughing
Before surgery
0 (0–0)
0 (0–0)
0 (0–0)
0.838
1 h after surgery
0 (0–2.00)
0 (0–0)
0 (0–0.25)
0.071
8 h after surgery
1 (0–2.50)
2 (2.00–4.00)
1.50 (0–2.25)
0.331
24 h after surgery
2.00 (2.00–4.00)
4.00 (2.00–4.00)
2.00 (2.00–3.00)
0.053
48 h after surgery
2.00 (2.00–4.00)
2.00 (2.00–4.00)
2.00 (2.00–2.25)
0.296
72 h after surgery
2.00 (0–2.00)
2.00 (0–2.00)
1.50 (0–2.00)
0.331
The VAS (median (quartiles)) during rest, during rotation of the homolateral arm, and while coughing had no significant difference among the three groups in the 72 h postoperative period, .
