Outcome measures
NRS
The basic information of all the patients was collected, including the static and dynamic NRS scores after the intervention. In addition, we collected pulse oxygen saturation (SpONRS scores at 30 min is 30 min after the intervention, with the NRS score at this moment unrelated to the other interventions, and this same is also true for NRS scores at 6 h, 12 h, 24 h.