Abstract:Objective: The purpose of this study was to observe whether there is a statistical difference in the success rate of CT guided radiofrequency thermocoagulation of left and right lumbar sympathetic nerves, and to explore the influencing factors of outcome events based on anatomy and technical aspects. Methods: A total of 76 patients who underwent CT-guided radiofrequency thermocoagulation of lumbar sympathetic nerve in the pain Department of Jiaxing first Hospital were selected. All patients underwent bilateral lumbar sympathetic radiofrequency thermocoagulation and were divided into two groups: left group (n = 76) and right group (n = 76). The operation time, CT scanning times, implementation rate of remedial measures, pulse oxygen saturation (SPO2), foot temperature (T) and perfusion index (PI) of both feet before and after operation were observed. Results: The operation time, CT scanning times and anhydrous alcohol rescue rate on the left side were significantly lower than those on the right side, and the difference was statistically significant. There was no significant difference in preoperative SPO2, T and PI between two groups, but the postoperative PI and T on the left side were significantly higher than those on the right side, and the difference was statistically significant. Conclusion: In CT-guided radiofrequency thermocoagulation of lumbar sympathetic nerve, the right side is difficult to operate and the success rate is low. Anatomical factors may be an important reason for this difference.