Pain Relief for Glossopharyngeal Neuralgia by Repeated Peripheral Glossopharyngeal Nerve Block

Sago Teppei, Ando Eika, Shiiba Shunji

doi:10.11264/jjop.16.55

Patient: The patient is a 84-year-old man. He had noticed electric shock-like pain on the right mandible and radix linguae 1 month ago. He had become to have difficulty in opening mouth and swallowing due to pain and was referred to our department for pain control. At first visit, we suspected glossopharyngeal neuralgia because the pain was reduced by spraying lidocaine spray to the radix linguae. Glossopharyngeal nerve block with a low-concentration local anesthetic was performed to control the pain, and the pain was alleviated. The analgesic effect of the first block was temporary, but the analgesic effect continued in the subsequent multiple blocks, and the pain disappeared after the fourth block, so the treatment was terminated. <br>Discussion: Blocking the peripheral branches of the glossopharyngeal nerve with a low-concentration local anesthetic have the effects that block ephaps transmission and neuronal excitability and lead to a natural refractory period by blocking tactile stimuli from the periphery for a certain period. These effects may lead long-lasting analgesic effect. <br>Conclusion: Glossopharyngeal nerve block with a low-concentration local anesthetic is effective as a pain control method for glossopharyngeal neuralgia.

Pain Relief for Glossopharyngeal Neuralgia by Repeated Peripheral Glossopharyngeal Nerve Block

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