Effectiveness of non-pharmacological interventions for pain reduction following chest tube removal: A systematic review and network meta-analysis

Abstract

Objective

This study aimed to determine the most effective non-pharmacological intervention for pain relief following chest tube removal in adult patients.

Methods

We performed a systematic review with network meta-analysis, searching electronic databases for randomized controlled trials up to January 20, 2024. Compared to control or placebo groups, the trials included adult patients receiving non-pharmacological interventions, such as cold therapy, relaxation exercises, music therapy, transcutaneous electrical nerve stimulation, or aromatherapy. Data analysis utilized a random-effects model, reporting standardized mean differences (SMD) with 95% confidence intervals (CI), and treatment ranking was determined through surface under the cumulative ranking analysis and forest plots.

Results

Sixteen studies enrolling 1,342 patients were included, with moderate to high heterogeneity. Cold therapy and relaxation exercises effectively reduced pain after chest tube removal, with SMD of −1.84 (95 % CI: −2.81 to −0.87) and −2.04 (95 % CI: −3.43 to −0.65), respectively, from baseline to immediately post-removal. From baseline to ten to twenty minutes after removal, both therapies continued to show significant pain reduction, with SMD of −1.96 (95 % CI: −3.14 to −0.77) for cold therapy and −2.01 (95 % CI: −3.75 to −0.28) for relaxation exercises. Sensitivity analysis supported these findings, and cold therapy’s efficacy appeared unaffected by obesity. However, publication bias, possibly due to small study samples, was noted.

Conclusions

Cold therapy and relaxation exercises proved most effective for reducing pain immediately and up to ten to twenty minutes after chest tube removal. Given their cost-effectiveness, lack of side effects, and ease of use, we recommend relaxation exercises as a practical alternative to cold therapy. Nonetheless, further studies are needed to comprehensively assess non-pharmacological options for managing chest tube removal pain.

Implications for clinical practice

Incorporate cold therapy and relaxation exercises into post-chest tube removal pain management to improve patient comfort and minimize reliance on pharmacological interventions.