• Oral Surg Oral Med Oral Pathol Oral Radiol · Jan 2014

    Can the neurovascular compression volume of the trigeminal nerve on magnetic resonance cisternography predict the success of local anesthetic block after initial treatment by the carbamazepine?

    • Shunji Shiiba, Tatsurou Tanaka, Eiji Sakamoto, Masafumi Oda, Shinji Kito, Kentaro Ono, Nao Wakasugi-Sato, Shinobu Matsumoto-Takeda, Yuji Seta, Yoshiki Imamura, Osamu Nakanishi, Kiyotoshi Inenaga, and Yasuhiro Morimoto.
    • Department of Control of Physical Functions, Kyushu Dental College, Kitakyushu, Japan.
    • Oral Surg Oral Med Oral Pathol Oral Radiol. 2014 Jan 1; 117 (1): e15-21.

    ObjectivesWhether NVC volume on magnetic resonance (MR) cisternography might be related to the success of local anesthetic block by tetracaine (TNB) as an additional treatment after carbamazepine (CBZ) treatments in patients with trigeminal neuralgia (TN) was evaluated.Study DesignDetectable NVC volumes were measured from MR cisternography in 65 patients with TN treated by TNB after CBZ treatments. The correlation between the success of TNB and the NVC volume or the improvement in pain by CBZ was evaluated retrospectively.ResultsA significant difference was found between the improvement in pain by CBZ and the success of TNB, but not between NVC volume on MR cisternography and the success of TNB.ConclusionsThe present results suggest that the success of CBZ as initial treatment, but not NVC volume on MR cisternography, may be a significant predictor of the success of TNB as additional therapy in patients with TN.Copyright © 2014 Elsevier Inc. All rights reserved.

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