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Eur J Cardiothorac Surg 2003;24:588-593
© 2003 Elsevier Science NL

Postoperative pain detracts from early health status improvement seen after video-assisted thoracoscopic lung volume reduction surgery

Department of Respiratory Medicine and Thoracic Surgery, Glenfield Hospital, Leicester LE3 9QP, UK

Received 13 March 2003; received in revised form 19 June 2003; accepted 24 June 2003.

^* Corresponding author. Tel.: +44-116-2563959; fax: +44-116-2367768
e-mail: ingeroey{at}hotmail.com

Objectives: To assess the impact of lung volume reduction surgery (LVRS) on postoperative pain. Methods: Fifty-two patients, 34 male/18 female, median age 59 (46–70) years, underwent unilateral video-assisted thoracoscopic (VAT) LVRS. FEV₁, TLC, RV and RV/TLC ratio were assessed preoperatively and at 3, 6, 12 and 24 months post surgery. At the same time interval health status was assessed by Euroquol and SF 36 questionnaires. Results: Significant improvements in health status, as assessed by SF 36, persisted from 3 months to 1 year. However, in the pain domain there was a worsening of the mean score from 74 preoperatively to 64 at 3 months, 68 at 6 months, 73 at 12 months and 65 at 24 months. The improvements in Euroquol score were not statistically significant. However, they became significant for at least 2 years postoperatively, when those patients who had a worsening pain score postoperatively were excluded. While the percentage of patients with a worsening of pain scores measured with SF 36 remained between 40 and 45% even 2 years after LVRS, when using Euroquol this percentage did decrease from 30% at 3 months to 14% at 2 years. There was no significant correlation between the change of scores and length of operation, hospital stay or air leak. It was also not statistically significant whether these patients had an extra procedure (redo thoracotomy or insertion of extra drain postoperatively). There were some significant correlations between changes in hyperinflation and changes in pain scores but this was not consistent for Euroquol and SF 36. Conclusion: Postoperative pain detracts from global improvement in health status after LVRS even after unilateral VATS. There may be an influence of alterations in chest mechanics after surgery on the development of pain.

Key Words: Emphysema • LVRS • Postoperative pain • VATS