Microstructural abnormalities of the trigeminal nerve correlate with pain severity and concomitant emotional dysfunctions in idiopathic trigeminal neuralgia: A randomized, prospective, double-blind study

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• 作者：Yuan Wang^a ; ^{wangyuan8003@126.com" class="auth_mail" title="E-mail the corresponding author} ; Dan Li^b ; ^{youyouyu1010@163.com" class="auth_mail" title="E-mail the corresponding author} ; Faxiu Bao^a ; ^{baofaxiu0522@163.com" class="auth_mail" title="E-mail the corresponding author} ; Chenguang Guo^a ; ^{xiaoguo79@qq.com" class="auth_mail" title="E-mail the corresponding author} ; Shaohui Ma^a ; ^{sh_ma@163.com" class="auth_mail" title="E-mail the corresponding author} ; Ming Zhang^a ; ^{profzmmri@126.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：3D-FIESTA ; three-dimensional fast imaging employing steady state acquisition ; CSA ; cross-sectional area ; CSF ; cerebrospinal fluid ; HAMA ; Hamilton Anxiety Rating Scale ; HAMD ; Hamilton Depression Rating Scale ; ITN ; idiopathic trigeminal neuralgia ; MVD ; microvascular decompression ; NVC ; neurovascular compression ; REZ ; root entry zone ; TGN ; trigeminal nerve ; TOF-MRA ; time-of-flight magnetic resonance angiography ; VAS ; visual analogue scale ; V ; volume
• 刊名：Magnetic Resonance Imaging
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：34
• 期：5
• 页码：609-616
• 全文大小：1009 K

文摘

To compare cross-sectional area (CSA) and volume (V) between the trigeminal nerves (TGNs) of the affected side and the unaffected side in patients with idiopathic trigeminal neuralgia (ITN), and both nerves in normal controls, and to correlate these morphological data with degree of facial pain and emotional disorder severity in ITN patients.

Methods

Forty ITN patients and 40 matched healthy volunteers underwent three-dimensional fast imaging employing steady state acquisition (3D-FIESTA) and time-of-flight magnetic resonance angiography (TOF-MRA) focusing on CSA and V of the TGN cisternal segment. Correlations between the morphological results and scores of visual analogue scale (VAS), Hamilton Depression Rating Scale (HAMD), and Hamilton Anxiety Rating Scale (HAMA) were analyzed in two groups.

Results

CSA and V of the affected TGN were significantly smaller than in the unaffected TGN and both sides in controls. No statistical differences were observed between morphological data of the unaffected TGN and control TGNs. CSA and V of the affected TGN were significantly associated with VAS scores in ITN patients, and intermediate correlations were detected with HAMD and HAMA scores.

Conclusion

Degree of atrophy in the affected TGN can be effective for evaluating facial pain and assessing emotional deficits in ITN patients.