title: Neuro-otologic surgery through minimally invasive retrosigmoid approach: endoscope assisted microvascular decompression, vestibular neurotomy, and tumor removal.
abstract: OBJECTIVE
  The objective of this study was to describe and evaluate the efficacy of the endoscope assisted minimally invasive retrosigmoid approach.
  
  
  METHODS
  Retrospective study and literature review.
  
  
  METHODS
  From December 1993 to December 2004, a total of 1,177 cases of endoscope assisted minimally invasive retrosigmoid approach were performed at the Otorhinolaryngology unit of Hôpital Nord in Marseille. By using this approach, we performed microvascular decompression for hemifacial spasm and trigeminal neuralgia, vestibular neurotomy for refractory Ménière's disease with repeated attacks of dizziness, and tumor removal of acoustic neurinoma. We examined the results and postoperative complications.
  
  
  RESULTS
  All the results were positive, and we did not experience any mortal complications. The most common complication was cerebrospinal fluid leakage, encountered in 42 (3.6%) cases.
  
  
  CONCLUSIONS
  We believe that the combination of an endoscope and microscope that provides accurate information with low invasion is becoming indispensable for these types of operations, which are in the category of functional surgery. We report the merits and significance of the approach of combining the endoscope and microscope and discuss the operational technique to perform a minimally invasive surgery as an oto-neurosurgeon.
authors.affiliation: Otorhinolaryngology Unit, Hôpital Nord, Marseille, France. miyazaki@jikei.ac.jp
authors.forename: Hidemi
authors.initials: H
authors.lastname: Miyazaki
authors.forename: Arnaud
authors.initials: A
authors.lastname: Deveze
authors.forename: Jacques
authors.initials: J
authors.lastname: Magnan
mesh_terms: D003399:Craniotomy / Q000379:methods; D019299:Decompression, Surgical / Q000379:methods*; D004724:Endoscopy / Q000379:methods*; D019569:Hemifacial Spasm / Q000601:surgery; D006801:Humans; D008575:Meniere Disease / Q000601:surgery; D008866:Microsurgery / Q000379:methods*; D009464:Neuroma, Acoustic / Q000601:surgery*; D011183:Postoperative Complications; D012189:Retrospective Studies; D016896:Treatment Outcome; D014277:Trigeminal Neuralgia / Q000601:surgery; D014725:Vestibular Nerve / Q000601:surgery*