title: 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?
abstract: OBJECTIVE
  Whether 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.
  
  
  METHODS
  Detectable 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.
  
  
  RESULTS
  A 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.
  
  
  CONCLUSIONS
  The 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.
authors.affiliation: Department of Control of Physical Functions, Kyushu Dental College, Kitakyushu, Japan.
authors.forename: Shunji
authors.initials: S
authors.lastname: Shiiba
authors.affiliation: Department of Oral Diagnostic Science, Kyushu Dental College, Kitakyushu, Japan.
authors.forename: Tatsurou
authors.initials: T
authors.lastname: Tanaka
authors.affiliation: Department of Control of Physical Functions, Faculty of Dentistry, Kyushu University, Fukuoka, Japan.
authors.forename: Eiji
authors.initials: E
authors.lastname: Sakamoto
authors.affiliation: Department of Oral Diagnostic Science, Kyushu Dental College, Kitakyushu, Japan.
authors.forename: Masafumi
authors.initials: M
authors.lastname: Oda
authors.affiliation: Department of Oral Diagnostic Science, Kyushu Dental College, Kitakyushu, Japan.
authors.forename: Shinji
authors.initials: S
authors.lastname: Kito
authors.affiliation: Department of Oral Bioscience, Kyushu Dental College, Kitakyushu, Japan.
authors.forename: Kentaro
authors.initials: K
authors.lastname: Ono
authors.affiliation: Department of Oral Diagnostic Science, Kyushu Dental College, Kitakyushu, Japan.
authors.forename: Nao
authors.initials: N
authors.lastname: Wakasugi-Sato
authors.affiliation: Department of Oral Diagnostic Science, Kyushu Dental College, Kitakyushu, Japan.
authors.forename: Shinobu
authors.initials: S
authors.lastname: Matsumoto-Takeda
authors.affiliation: Department of Oral Bioscience, Kyushu Dental College, Kitakyushu, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Seta
authors.affiliation: Department of Oral Diagnostic Science, Nihon University School of Dentistry, Tokyo, Japan.
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Imamura
authors.affiliation: Department of Control of Physical Functions, Kyushu Dental College, Kitakyushu, Japan.
authors.forename: Osamu
authors.initials: O
authors.lastname: Nakanishi
authors.affiliation: Department of Oral Bioscience, Kyushu Dental College, Kitakyushu, Japan.
authors.forename: Kiyotoshi
authors.initials: K
authors.lastname: Inenaga
authors.affiliation: Department of Oral Diagnostic Science, Kyushu Dental College, Kitakyushu, Japan; Center for Oral Biological Research, Kyushu Dental College, Kitakyushu, Japan. Electronic address: rad-mori@kyu-dent.ac.jp.
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Morimoto
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D018712:Analgesics, Non-Narcotic / Q000008:administration & dosage*; D000779:Anesthetics, Local / Q000008:administration & dosage*; D002220:Carbamazepine / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D018810:Magnetic Resonance Angiography / Q000379:methods; D008297:Male; D008875:Middle Aged; D009407:Nerve Block / Q000379:methods*; D010147:Pain Measurement; D011237:Predictive Value of Tests; D012189:Retrospective Studies; D013748:Tetracaine / Q000008:administration & dosage*; D014276:Trigeminal Nerve / Q000098:blood supply*; D014277:Trigeminal Neuralgia / Q000188:drug therapy*
chemical_list: D018712:Analgesics, Non-Narcotic; D000779:Anesthetics, Local; D013748:Tetracaine; D002220:Carbamazepine