CT-Guided Percutaneous Infrazygomatic Radiofrequency Neurolysis Through Foramen Rotundum to Treat V2 Trigeminal Neuralgia PAIN MEDICINE Huang, B., Yao, M., Feng, Z., Guo, J., Zereshki, A., Leong, M., Qian, X. 2014; 15 (8): 1418-1428

Abstract

Percutaneous radiofrequency thermocoagulation or neurolysis of Gasserian ganglion through foramen ovale (FO) is the classical approach to treat trigeminal neuralgia (TN). However, it has been technically challenging when individual trigeminal sub-branch nerve block is desired through this approach. We have thus developed a novel computed tomograph-guided technique to block the V2 trigeminal nerve through foramen rotundum (FR). With this technique, we have conducted a study of 27 patients with isolated V2 TN. We hypothesize that this new technique will have comparable clinical outcome with the conventional FO approach.Prospective study.Academic hospitals.Twenty-seven patients with isolated classical V2 TN were enrolled and divided into FO group (N?=?12) and FR group (N?=?15).Numeric Rating Scale (NRS) scores for facial pain, at pretreatment, immediate postoperative, postoperative 1 day, and 1, 6, and 12 months were recorded. The primary clinical outcome (successful pain relief with 50% or more reduction in NRS) and secondary adverse clinical outcome (hematoma, facial numbness, masticatory weakness, and corneal involvement) were compared and analyzed.Both groups have good immediate and sustained pain relief. However, when compared with the FO group, the FR group is associated with shorter procedural time (29.2?±?9.3 vs 45.4?±?22.13 minutes, P?

View details for DOI 10.1111/pme.12440

View details for Web of Science ID 000342630800025

View details for PubMedID 24716880