Effect of high-frequency repetitive transcranial magnetic stimulation in M1 region combined with dorsolateral prefrontal cortex on electroencephalogram θ frequency band amplitude of patients with neuropathic pain after spinal cord injury
10.3969/j.issn.1006-9771.2024.01.012
- VernacularTitle:M1区联合背外侧前额叶高频重复经颅磁刺激对脊髓损伤后神经病理性疼痛患者脑电图θ振幅的效果
- Author:
Dong LIU
1
;
Zihan XU
2
;
Jiang LI
1
;
Ping JU
3
Author Information
1. Qingdao University Affiliated Hospital, Qingdao, Shandong 266000, China
2. The Second People's Hospital of Shandong Province, Ji'nan, Shandong 250023, China
3. Chinese People's Liberation Army Navy Qingdao Special Service Rehabilitation Center, Qingdao, Shandong 266000, China
- Publication Type:Journal Article
- Keywords:
spinal cord injury;
neuropathic pain;
repetitive transcranial magnetic stimulation;
electroencephalogram;
θ frequency band amplitude
- From:
Chinese Journal of Rehabilitation Theory and Practice
2024;30(1):87-94
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo explore the efficacy of high-frequency repetitive transcranial magnetic stimulation (rTMS) in M1 region combined with dorsolateral prefrontal cortex (DLPFC) on electroencephalogram (EEG) θ frequency band amplitude of patients with neuropathic pain (NP) after spinal cord injury. MethodsFrom June, 2022 to June, 2023, 50 NP patients after SCI in Qingdao University Affiliated Hospital were included and divided into M1 region stimulation group (n = 25) and M1 region combined with DLPFC stimulation group (the combined stimulation group, n = 25). M1 region stimulation group received 10 Hz rTMS in the left M1 region, while the combined stimulation group received same stimulation in left M1 region combined with DLPFC, for three weeks. Before and after intervention, the pain was assessed with Short Form of McGill Pain Questionnaire (SF-MPQ), the depression and anxiety status were evaluated using Hamilton Depression Scale (HAMD) and Hamilton Anxiety Scale (HAMA), and the EEG θ frequency band amplitude was recorded to detect the changes of brain electrophysiological activity. ResultsFour cases in M1 region stimulation group, and two cases in the combined stimulation group were dropped. After intervention, the total score of SF-MPQ and the scores of the subscales, the scores of HMMD and HAMA decreased in both groups (|t| > 2.523, P < 0.05). The EEG θ frequency band amplitude significantly reduced in the prefrontal and frontal regions in M1 region stimulation group (|t| > 5.243, P < 0.001), and it also significantly reduced in the prefrontal, frontal regions, central and parietal regions in the combined stimulation group (|t| > 4.630, P < 0.001). All the scores were lower (|t| > 2.270, Z = -1.973, P < 0.05), and the EEG θ frequency band amplitude in the prefrontal, frontal regions, central and parietal regions were lower (P < 0.05) in the combined stimulation group than in M1 region stimulation group. ConclusionHigh frequency rTMS is an effective analgesic method on NP after SCI, which can improve their depression and anxiety symptoms and reduce the EEG θ frequency band amplitude. Compared with M1 region rTMS stimulation, the combination of M1 region and DLPFC rTMS is more effective.
