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ISSN: 1895-4588
Videosurgery and Other Miniinvasive Techniques
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1/2023
vol. 18
 
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Thoracic surgery
abstract:
Original paper

The effects of different analgesic methods on chronic pain in patients undergoing video-assisted thoracoscopic surgery

Xiaoning Zhao
1
,
Weijie Xiao
1
,
Tianhao Zhang
1
,
Man Xi
1
,
Xijia Sun
1

  1. Department of Anesthesiology, The First Hospital of China Medical University, Shenyang, China
Videosurgery Miniinv 2023; 18 (1): 157–165
DOI: https://doi.org/10.5114/wiitm.2022.120572
Online publish date: 2022/10/22
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Introduction
Thoracic epidural block, paravertebral block, and intercostal nerve block have been confirmed to alleviate acute pain after video-assisted thoracoscopic surgery (VATS). In contrast, little is known about the effects of these methods on chronic post-surgical pain (CPSP). Aim: To investigate the effects of epidural block, paravertebral block, and intercostal nerve block on postoperative chronic pain in patients undergoing VATS.

Material and methods
A total of 240 patients undergoing VATS were randomly divided into 4 groups: an epidural group, paravertebral group, intercostal group, and a control group. All patients were interviewed after 1, 3, 6, and 12 months to investigate the incidence and severity of CPSP.

Results
The epidural group had lower incidence of chronic pain within 6 months and it was less severe within 3 months compared with the control group. The incidence and intensity of chronic pain within 3 months were lower in the intercostal group than in the control group. The incidence and intensity of pain within 1 month of surgery were lower in the paravertebral group than in the control group. Of the 122 patients who developed pain after 1 month, 93 (76.2%) reported chronic pain after 12 months, and only 9 (11.7%) had chronic pain after 12 months despite reporting no pain at 1 month.

Conclusions
The prevalence of CPSP after VATS is high. Epidural block, paravertebral block, and intercostal nerve block can all reduce the incidence and severity of CPSP, with epidural block showing the best effect. In addition to acute pain, 1-month postoperative pain also exerts a warning effect on CPSP.

keywords:

chronic pain, video-assisted thoracoscopic surgery, chronic post-surgical pain, paravertebral nerve block, intercostal nerve block, thoracic epidural block
  
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