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Table 3 Chronic postoperative pain in 6 months after operation

From: Effect of lidocaine perioperative infusion on chronic postsurgical pain in patients undergoing thoracoscopic radical pneumonectomy

Variables

Control group (n = 28)

Lidocaine group (n = 29)

p-value

Total

Number of people with CPSP

4

4

1.00a

8

NRS

2.00 ± 1.41

1.25 ± 0.50

0.37b

 

Pain degree

 Mild

3

4

 

7 (87.5%)

 Moderate

1

0

 

1 (12.5%)

 Severe

0

0

 

0 (0.0%)

Location

  

0.23a

 

 Partial incision

1

2

 

3 (37.5%)

 Chest wall

3

2

 

5 (62.5%)

Pain form

  

0.11a

 

 Spontaneous pain

1

0

 

1 (12.5%)

 Stretch pain

2

2

 

4 (50.0%)

 Cough pain

2

1

 

3 (37.5%)

Duration

  

0.46a

 

 Always

0

1

 

1 (12.5%)

 Intermittent

4

3

 

7 (87.5%)

Analgesic use

  

1.00a

 

 Unused

4

4

 

8 (100%)

 used

0

0

 

0 (0.00%)

  1. CPSP chronic postsurgical pain, NRS numerical rating scales
  2. a Fisher exact test, b NStudent t-test