Journal of pain research · 2018
Computed tomography-guided percutaneous ozone injection of the Gasserian ganglion for the treatment of trigeminal neuralgia.
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An Jian-Xiong, Liu Hui, Chen Ruo-Wen, Wang Yong, Zhao Wen-Xing, Eastwood Derek, Williams John P
Аннотация
OBJECTIVE: The aim of this study was to evaluate the therapeutic effect of computed tomography (CT)-guided percutaneous ozone injection for refractory trigeminal neuralgia.
DESIGN: A retrospective evaluation was performed in the study.
SETTING: The study was conducted at a university hospital pain center.
PATIENTS AND METHODS: A total of 29 patients with a clinical diagnosis of refractory trigeminal neuralgia were enrolled. All patients were treated with a percutaneous ozone injection and one patient was excluded. There were 21 patients with classical trigeminal neuralgia (group A) and seven patients with painful trigeminal neuropathy caused by post-herpetic neuralgia (group B). The percutaneous injection was an oxygen-ozone mixture at an ozone concentration of 30 μg/mL into the Gasserian ganglion performed under CT guidance. The number of procedures performed varied from one to as many as 16. Outcomes were evaluated using visual analog scale (VAS) pain scores.
RESULTS: The combined VAS scores were 7.11 ± 1.23 pretreatment, 2.86 ± 1.69 posttreatment (P < 0.05) and 3.25 ± 2.01 after 6-month follow-up (P < 0.05). In group A, the VAS scores were 7.10 ± 1.04 pretreatment and 2.90 ± 1.84 posttreatment (P < 0.05). In group B, the VAS scores were 7.14 ± 1.77 pretreatment and 2.71 ± 1.25 posttreatment (P < 0.05). After 6-months follow-up, the VAS score was 3.38 ± 2.18 in group A and 2.86 ± 1.46 in group B, a decrease compared to pretreatment (P < 0.05). VAS of Group A and B showed no difference not only in pretreatment but also in postreatment and follow-up.
CONCLUSION: Percutaneous ozone injection is a safe and effective treatment for patients with refractory trigeminal neuralgia.
DESIGN: A retrospective evaluation was performed in the study.
SETTING: The study was conducted at a university hospital pain center.
PATIENTS AND METHODS: A total of 29 patients with a clinical diagnosis of refractory trigeminal neuralgia were enrolled. All patients were treated with a percutaneous ozone injection and one patient was excluded. There were 21 patients with classical trigeminal neuralgia (group A) and seven patients with painful trigeminal neuropathy caused by post-herpetic neuralgia (group B). The percutaneous injection was an oxygen-ozone mixture at an ozone concentration of 30 μg/mL into the Gasserian ganglion performed under CT guidance. The number of procedures performed varied from one to as many as 16. Outcomes were evaluated using visual analog scale (VAS) pain scores.
RESULTS: The combined VAS scores were 7.11 ± 1.23 pretreatment, 2.86 ± 1.69 posttreatment (P < 0.05) and 3.25 ± 2.01 after 6-month follow-up (P < 0.05). In group A, the VAS scores were 7.10 ± 1.04 pretreatment and 2.90 ± 1.84 posttreatment (P < 0.05). In group B, the VAS scores were 7.14 ± 1.77 pretreatment and 2.71 ± 1.25 posttreatment (P < 0.05). After 6-months follow-up, the VAS score was 3.38 ± 2.18 in group A and 2.86 ± 1.46 in group B, a decrease compared to pretreatment (P < 0.05). VAS of Group A and B showed no difference not only in pretreatment but also in postreatment and follow-up.
CONCLUSION: Percutaneous ozone injection is a safe and effective treatment for patients with refractory trigeminal neuralgia.