title: Trigeminal Neuralgia: Evaluation of the Relationship Between the Region of Neuralgic Manifestation and the Site of Neurovascular Compression Under Endoscopy.
abstract: This study aimed to evaluate the relationship among the pain region, branches of trigeminal nerve, and the neurovascular compression (NVC) location. A total of 123 consecutive patients with trigeminal neuralgia (TN) underwent endoscope-assisted microvascular decompression according to positive preoperative tomographic angiography. V2 alone was in 51 cases and V3 alone was in 64 cases. The location of NVC was classified into cranial, caudal, medial, or lateral sites. Some patients with multiple regions were recorded as medial + cranial, lateral + cranial, medial + caudal, and lateral + caudal. Twenty-eight (71.8%) of 39 patients with TN (V2) had their NVC at the medial site of the nerve. Twenty-seven (64.3%) of 42 patients with TN (V3) had their NVC at the lateral site of the nerve. There was a statistically significant difference (P = 0.0011 < 0.01, χ2 test). Sixteen (69.6%) of 23 patients with TN(V2) had their NVC at the cranial site of the nerve. Thirty-four (69.4%) of 49 patients with TN (V3) had their NVC at the caudal site of the nerve. There was no statistical difference (P = 0.3097 > 0.01). Evaluation of the relationship between the pain region and the NVC location by endoscopic images during microvascular decompression is more accurate. The second branch is mostly distributed in the medial area, and third branch is mainly distributed in the lateral area.
authors.affiliation: Department of Oral and Craniofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
authors.forename: Wenhao
authors.initials: W
authors.lastname: Zhang
authors.forename: Minjie
authors.initials: M
authors.lastname: Chen
authors.forename: Weijie
authors.initials: W
authors.lastname: Zhang
authors.forename: Ying
authors.initials: Y
authors.lastname: Chai
mesh_terms: D000328:Adult; D000368:Aged; D001672:Biocompatible Materials; D003399:Craniotomy / Q000379:methods; D004724:Endoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D018810:Magnetic Resonance Angiography / Q000379:methods; D008297:Male; D008340:Mandibular Nerve / Q000473:pathology / Q000601:surgery; D008442:Maxillary Nerve / Q000473:pathology / Q000601:surgery; D061145:Microvascular Decompression Surgery / Q000295:instrumentation / Q000379:methods*; D008875:Middle Aged; D009408:Nerve Compression Syndromes / Q000175:diagnosis* / Q000601:surgery; D011093:Polyethylene Terephthalates; D014276:Trigeminal Nerve / Q000473:pathology* / Q000601:surgery; D014277:Trigeminal Neuralgia / Q000175:diagnosis* / Q000601:surgery
chemical_list: D001672:Biocompatible Materials; D011093:Polyethylene Terephthalates