Chronic post-surgical pain (CPSP) remains a common complication after thoracic surgery and may significantly impair patients' quality of life. Although the widespread adoption of video-assisted thoracic surgery (VATS) has reduced surgical trauma and improved postoperative recovery, a substantial proportion of patients still develop persistent pain.
The EVATHO study is a multicenter prospective observational cohort designed to determine the prevalence of CPSP three months after VATS and to identify perioperative factors associated with its development. Adult patients undergoing thoracic surgery by VATS at Montpellier and Nice University Hospitals will be prospectively enrolled.
Pain intensity, neuropathic pain characteristics, anxiety, depression, quality of life, and analgesic consumption will be assessed using validated questionnaires during the perioperative period and at 1 and 3 months after surgery. The results of this study may help identify patients at increased risk of CPSP and improve perioperative pain management strategies following thoracic surgery.
Adult patients undergoing video-assisted thoracic surgery (VATS) for thoracic surgery
Age <18 years
Adults under legal protection or unable to provide informed non-opposition
Patients unable to understand or complete the study questionnaires
Patients not affiliated with a French health insurance scheme.
Adult patients undergoing video-assisted thoracic surgery (VATS) for pulmonary resection, pleural procedures, chest wall surgery, or lung biopsy at Montpellier and Nice University Hospitals.
Cohort
Prospective
Not listed
Number of participants with chronic post-surgical pain
Chronic post-surgical pain defined as a Brief Pain Inventory (BPI) average pain score greater than 3 at the 3-month postoperative follow-up.
Postoperative pain at 1 month after VATS
Post-surgical pain defined as a Brief Pain Inventory (BPI) average pain score greater than 3 at the 1-month postoperative follow-up.
Visual Analogue Scale (VAS) pain score
Pain intensity measured using the Visual Analogue Scale (VAS), with scores ranging from 0 (no pain) to 10 (worst imaginable pain).
Cumulative postoperative opioid consumption.
Total opioid consumption during the postoperative period as morphine milligram equivalents
Douleur Neuropathie 4 (DN4) score
Neuropathic pain measured using the Douleur Neuropathique 4 (DN4) questionnaire. Scores range from 0 to 10, with scores greater than or equal to 4 indicating neuropathic pain.
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