JOURNAL ARTICLE

The treatment of V2 + V3 idiopathic trigeminal neuralgia using peripheral nerve radiofrequency thermocoagulation via the foramen rotundum and foramen ovale compared with semilunar ganglion radiofrequency thermocoagulation

Fei Zeng, Mengye Zhu, Quan Wan, Yi Yan, Changxi Li, Yong Zhang
Clinical Neurology and Neurosurgery 2020 June 17, 196: 106025
32590251

OBJECTIVES: To compare the advantages and disadvantages of V2 + V3 idiopathic trigeminal neuralgia using peripheral nerve radiofrequency (RF) thermocoagulation (PRF) via the foramen rotundum (FR) and foramen ovale (FO) with those of semilunar ganglion RF thermocoagulation (GRF) under local anesthesia, for exploring a new and available surgical method for patients with V2 + V3 idiopathic trigeminal neuralgia.

PATIENTS AND METHODS: 102 patients with V2 + V3 idiopathic trigeminal neuralgia were enrolled in this prospective randomized controlled clinical trial, and they were divided into the PRF and GRF group randomly (n = 51 in both groups). The outcome of pain relief was assessed using the Barrow Neurological Institute (BNI) pain score, and grouped as good (BNI Class I or II, no medication required) and bad (BNI Class III-V, medication required or failed). Recurrence was defined as a relapse to a previous lower level after attainment of any higher level of pain relief. The immediate effective rate, the 2-year postoperative effective rate, the 2-year postoperative recurrence rate, and the number of complications were observed and recorded.

RESULTS: Their basic conditions (age, gender ratio, side of pain, and disease duration) were similar. Furthermore, we found that the 2-year postoperative effective rate between them had no significant difference. By comparing the two groups, PRF group had the better immediate effective rate of the V2 branch and no severe complications such as corneal ulcer, however, GRF group had lower 2-year postoperative recurrence rate of the V3 branch and fewer facial swelling.

CONCLUSION: The PRF surgery, like GRF, is another prospective treatment for V2 + V3 idiopathic trigeminal neuralgia by virtue of its excellent immediate effect, accurate positioning and high safety.

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