Abstract
Twenty-five wound care patients were randomly assigned to either a VR group or non-virtual reality (NVR) group, singly blinded. Pre-debridement, peri-debridement, and immediately postdebridement anxiety, fun, and pain scores were collected using a Likert scale (0 = least; 10 = most) from each group of patients. These measurements were compared among the VR versus NVR group in the setting of routine wound debridement procedures. The results are compared with our previously published data on patients who underwent wide awake local anesthesia no tourniquet (WALANT) hand surgery. The WALANT surgery patients using VR experienced significant reduction in anxiety and increase in fun compared with the NVR group. In the wound debridement group with VR, there was improved fun, but no statistically significant reduction in pain or anxiety when compared with the NVR group. The mean score for anxiety was higher for awake hand surgery than for wound debridement cases (3.3 versus 1.7, P = 0.004). VR seems to be more effective in higher anxiety settings, could VR work via a neurological mechanism akin to the Melzack and Wall gate control theory of pain? VR may act primarily on the anxiety axis, providing negative feedback via cortical pathways to the amygdala.
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