Su Qian, Li Jie, Chu Xu, Zhao Rui
Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for China, Tianjin, 300060, China.
Graduate School, Tianjin Medical University, Tianjin, 300203, China.
Insights Imaging. 2023 Jan 24;14(1):16. doi: 10.1186/s13244-022-01332-2.
OBJECTIVE: To test whether preoperative pain sensitivity is associated with the postoperative axial pain (PAP) in degenerative cervical myelopathy (DCM) and to explore its underlying brain mechanism. METHODS: Clinical data and resting-state fMRI data of 62 DCM patients along with 60 age/gender matched healthy participants were collected and analysed. Voxel-wise amplitude of low frequency fluctuation (ALFF) was computed and compared between DCM patients and healthy controls. Correlation analyses were performed to reveal the association between the clinical metrics and brain alterations. Clinical data and ALFF were also compared between DCM patients with PAP and without PAP. RESULTS: (1) Relative to healthy participants, DCM patients exhibited significantly lower preoperative pain threshold which is associated with the PAP intensity; (2) Relative to patients without PAP, PAP patients exhibited increased ALFF in mid-cingulate cortex (MCC) and lower preoperative pain threshold; (3) Further, multivariate pattern analysis revealed that MCC ALFF provide additional value for PAP vs. non-PAP classification. CONCLUSION: In conclusion, our findings suggest that preoperative pain hypersensitivity may be associated with postoperative axial pain in degenerative cervical myelopathy patients. This finding may inspire new therapeutic ideas for patients with preoperative axial pain.
目的:检测术前疼痛敏感性是否与退行性脊髓型颈椎病(DCM)患者术后轴性疼痛(PAP)相关,并探究其潜在的脑机制。 方法:收集并分析62例DCM患者以及60名年龄/性别匹配的健康参与者的临床数据和静息态功能磁共振成像(fMRI)数据。计算并比较DCM患者与健康对照者的低频振幅(ALFF)体素值。进行相关性分析以揭示临床指标与脑改变之间的关联。还比较了有PAP和无PAP的DCM患者的临床数据和ALFF。 结果:(1)相对于健康参与者,DCM患者术前疼痛阈值显著更低,且这与PAP强度相关;(2)相对于无PAP的患者,有PAP的患者在扣带回中部(MCC)的ALFF增加且术前疼痛阈值更低;(3)此外,多变量模式分析显示,MCC的ALFF为PAP与非PAP分类提供了额外价值。 结论:总之,我们的研究结果表明,术前疼痛超敏反应可能与退行性脊髓型颈椎病患者术后轴性疼痛相关。这一发现可能为术前有轴性疼痛的患者带来新的治疗思路。
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