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Table 3 VAS evaluation of the two group of patients at various time points of the ablation

From: Pain control for patients with hepatocellular carcinoma undergoing CT-guided percutaneous microwave ablation

Time points

Post initiation of ablation

Control Group

Experimental Group

p-value a

n = 50

n = 50

 

0.5 min

2.04 ± 1.97

1.02 ± 1.45

0.004

1.5 min

3.98 ± 1.95c

3.06 ± 1.27b

0.006

2.5 min

4.86 ± 1.7c

3.48 ± 1.30b

< 0.001

3.5 min

5.18 ± 1.62c

3.16 ± 1.20b

< 0.001

4.5 min

4.94 ± 1.64c

2.60 ± 1.09b

< 0.001

5.5 min

4.70 ± 1.46c

2.24 ± 0.85b

< 0.001

5 min after surgery

0.16 ± 0.55c

0.02 ± 0.14b

0.083

p-value

<0.001

<0.001

  1. aComparison between groups; bComparison within groups; cCompared to 0.5 min of the Experimental Group and the p-values were < 0.05