Efficacy And Influencing Factors Of Cervicogenic Headache With Pulsed Radiofrequency Treatment In C2 Dorsal Root Ganglion

Objective:To analyze the efficacy of cervical headache（CEH）with pulsed radiofrequency（PRF）treatment in C2 dorsal root ganglion,and to the factors affecting the efficacy.Methods:The general datas of 60 patients diagnosed with cervicogenic headache and treated with pulsed radiofrequency of cervical 2 dorsal root ganglion in the Department of Pain,Shanxi Bethune Hospital from May 2018 to December 2020 were retrospectively analyzed.Visual analogue scale（VAS）scores,Pittsburgh sleep quality index（PSQI）scores,cervical range of motion（ROM）score,self-rating anxiety scale（SAS）score at before operation and the 3^rdday,the 1^stweek,the 1^stmonth,the 3^rdmonth and the 6^thmonth after operation were used to assess changes in pain.Patients were divided into group E（excellent effect group）and group P（poor effect group）according to modified Mac Nab score at the 6^thmonths after operation.Results:There were no long-term complications in 60 patients after surgery.VAS scores,PSQI scores,cervical ROM scores and SAS scores at each time point after operation were significantly lower than those before operation（P<0.05）,and cervical ROM score at the 1st week after operation was higher than that the 3^rdday after operation（P<0.05）.PSQI score,VAS score and cervical ROM score at the 6^thmonth after operation were higher than those at the 3^rdmonth after surgery（P<0.05）.The factors associated with the postoperative efficacy of pulse radiofrequency therapy of cervical 2 dorsal root ganglion were disease duration,unilateral and bilateral,preoperative SAS score and preoperative cervical ROM score（P<0.05）.Patients with cervicogenic headache had high preoperative cervical ROM score,high preoperative SAS score,long disease duration and bilateral headache,which were risk factors for poor prognosis（P<0.05）.Conclusion:1.In patients with cervicogenic headache,pulsed radiofrequency cervical 2 dorsal root ganglion can achieve good efficacy in a short term.2.Patients with high preoperative cervical ROM score,high preoperative SAS score and long course of disease,bilateral headache may lead to poor efficacy.