Guided Breathing VR Reduces Opioid Use Post-PTBD in Cancer Patients by 64%
This randomized controlled trial evaluated the analgesic potential of guided breathing virtual reality (VR) in managing pain for cancer patients undergoing percutaneous transhepatic biliary drainage (PTBD). The study involved 45 patients who were randomly assigned to either a VR with guided deep breathing group (VRBG, n=22) or a conventional VR without breath guidance group (VROG, n=23). Both groups experienced two 7-minute VR sessions with calming visuals and narration, while VRBG received additional prompts for slow, rhythmic breathing. The primary endpoint was opioid consumption on the day following PTBD. Results showed that the VRBG group had significantly lower opioid consumption compared to the VROG group, with mean morphine milligram equivalents of 20.25 vs. 56.61 (P=0.044). No significant difference was observed in opioid use on the day of the procedure. Secondary endpoints included patient satisfaction and willingness to reuse VR, which were comparable between groups. Safety was assessed, revealing that mild adverse events were infrequent and self-limiting. These findings suggest that incorporating structured breathing guidance into VR may enhance its analgesic effect and reduce opioid reliance after invasive procedures, offering a promising non-pharmacological adjunct in cancer pain management.