The effect of guided imagery on the quality and severity of pain and pain-related anxiety associated with dressing changes in burn patients: A randomized controlled trial

Abstract

Pain and anxiety caused by burn dressing change are one of the major issues in burn patients. In this regard, guided imagery as a complementary method can be effective in reducing the levels of anxiety and pain. This method is the process of creating mental images and using sensory features through the individual's imagination and memory that facilitate the achievement of desired therapeutic outcomes. Therefore, this study was aimed at determining the effect of guided imagery on the quality and severity of pain and pain-related anxiety associated with dressing change in burn patients. This is a single-blinded randomized controlled trial in which a total of 70 burn patients were enrolled using convenience sampling and randomly allocated to two groups of intervention and control (n = 35 in each group). Each patient in the intervention group received four sessions of guided imagery during four consecutive days (one session a day) using a headphone. Then in both groups, the level of pain was assessed after the dressing change and the level of pain-related anxiety was assessed before the dressing change (between the end of the intervention and the initiation of dressing change). Data were collected using a demographic questionnaire, the Visual Analog Scale (VAS), the short-form McGill Pain Questionnaire (SF-MPQ), and the Burn Specific Pain Anxiety Scale (BSPAS). Data were first entered into the IBM SPSS Statistics for Windows, version 25.0 and then analyzed using repeated-measures Analysis of Variance. The repeated measures ANOVA indicated the mean score of the quality and severity of pain and pain-related anxiety differed statistically and significantly after the intervention (during the four sessions) compared to before it (baseline) in the intervention group (p < 0.001). The independent-samples t-test indicated a statistically significant difference in the mean scores of the quality and severity of pain and pain-related anxiety between the two groups (p < 0.001). This difference was found to be significant from the second session onwards (p < 0.001). Medical staff, including physicians, nurses and other healthcare professionals, are responsible for developing strategies to manage complications of burn injuries. Considering the effectiveness of guided imagery in reducing anxiety and pain in burn patients, it is recommended to use this method of complementary medicine to manage stress, anxiety, and pain in these patients.