analysis of short-term efficacy of radiofrequency thermocoagulation in treatment of classic trigeminal neuralgiaQi Wang1, Wen-jie Du2
1Shanxi bethune hospital, 99 Longcheng Street, Taiyuan City, Shanxi Province, China.
2First affiliated Hospital of Zhengzhou University, Zhengzhou City, Henan Province, China.
Objectives: To explore the short-term efficacy of radiofrequency thermocoagulation for the treatment of classic trigeminal neuralgia.Keywords: radiofrequency thermocoagulation therapy, trigeminal neuralgia, interventional therapy, minimally invasive
Material and Methods: A retrospective analysis of 58 patients with classical trigeminal neuralgia treated with radiofrequency thermocoagulation at our institution between 2016 and 2019, including 23 men and 35 women. The mean age of all patients was 62.1±10.9 years, the duration of the disease ranged from 2 months to 360 months, and the mean duration of the disease was 80.1±77.9 months. Patients were divided into three groups, V2, V3, V2+V3, according to the site of symptom presentation. Treatment effectiveness was evaluated by observing patients' before-surgery, after-surgery, and 1-year after-surgery visual pain simulation scores (VAS). The clinical efficacy was evaluated by calculating the percentage of patients whose net improvement in VAS scores of the three groups of patients V2, V3, and V2+V3 reached the MCID value of trigeminal neuralgia.
Results: Patients' after-surgery VAS scores and 1-year after-surgery VAS scores all showed meaningful improvement (p<0.001) compared with preoperative VAS scores, and after-surgery VAS scores showed meaningful change (p<0.05) compared with 1-year after-surgery VAS scores. 84.62%, 95.45%, 86.96% of patients in V2, V3, V2+V3 groups showed net improvement in after-surgery VAS scores to MCID values, and 69.2%, 86.4%, 74.0% of patients in 1-year after-surgery VAS scores showed net improvement to MCID values respectively.
Conclusion: The early efficacy of radiofrequency thermocoagulation for classic trigeminal neuralgia is significant, but patients have a tendency to have recurrence of pain symptoms 1 year after surgery.
Corresponding Author: Wen-jie Du, China