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Table 5 Systolic blood pressures (mean ± SD, mmHg) of the two groups of patients at various time points of the surgery

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

Before Surgery

132.44 ± 11.83

135.22 ± 16.91

0.343

Before initiation of ablation

135.88 ± 12.41c

137.48 ± 18.27d

0.610

0.5 min

140.22 ± 13.58c

138.84 ± 20.07

0.688

1.5 min

142.94 ± 14.72c

142.4 ± 20.39d

0.880

2.5 min

144.36 ± 17.91c

143.84 ± 20.61d

0.893

3.5 min

146.02 ± 18.13c

145.16 ± 19.68d

0.822

4.5 min

146.06 ± 18.4c

144.63 ± 19.05d

0.708

5.5 min

147.05 ± 18.31c

142.21 ± 19.12d

0.235

5 min after surgery

136.50 ± 12.52c

138.34 ± 17.58

0.548

p-value

< 0.001

< 0.001

  1. aComparison between groups; bComparison within groups; cCompared to Control Group before surgery, and the p-values were < 0.05. dCompared to Experimental Group before surgery, and the p-values were < 0.05