title: [Vestibular schwannomas: Surgical treatment of 67 cases in 10 years].
abstract: BACKGROUND
  Vestibular Schwannomas (VS) are benign intracranial tumors, for which their current management is a matter of debate, although microsurgical treatment remains the mode of choice in the majority of cases.
  
  
  OBJECTIVE
  To describe the surgical outcome of patients operated on for a VS in a Chilean Public Hospital.
  
  
  METHODS
  A series of 67 patients treated surgically between 2002 and 2012, in the Institute of Neurosurgery Asenjo is presented.
  
  
  RESULTS
  Sixty-five cases (97%) corresponded to Koos III and IV tumors, of which 52% were large (3-4 cm) or Giant (>4 cm). Forty-one cases were operated on using a retrosigmoid transmeatalapproach (61%). Total resection was achieved in 97% of the cases and subtotal in the remaining 3%. A mean six months follow-up showed that good facial function (House-Brackmann I or II) was obtained in 32.7% of the patients, and moderate function (House-Brackmann III or IV) in 42.3%. Cardiopulmonary complications were the most frequent (28%), and mortality was 1.5%.
  
  
  CONCLUSIONS
  The VS are tumors that can cause significant neurological deficit in advanced stages, despite their benign nature. Surgical treatment is very complex, and must be performed by specialized teams to ensure optimal functional results.
authors: Instituto de Neurocirugía Asenjo, Santiago de Chile, Chile; Departamento de Ciencias Neurológicas Sede Oriente, Universidad de Chile, Santiago de Chile, Chile. Electronic address: jorgemura@terra.cl.
authors: Jorge
authors: J
authors: Mura
authors: Instituto de Neurocirugía Asenjo, Santiago de Chile, Chile; Departamento de Ciencias Neurológicas Sede Oriente, Universidad de Chile, Santiago de Chile, Chile; Servicio de Neurocirugía, Hospital de Puerto Montt , Puerto Montt, Chile.
authors: José Luis
authors: JL
authors: Cuevas
authors: Instituto de Neurocirugía Asenjo, Santiago de Chile, Chile; Departamento de Ciencias Neurológicas Sede Oriente, Universidad de Chile, Santiago de Chile, Chile.
authors: David
authors: D
authors: Rojas-Zalazar
authors: Instituto de Neurocirugía Asenjo, Santiago de Chile, Chile.
authors: Francisco
authors: F
authors: Riquelme
authors: Instituto de Neurocirugía Asenjo, Santiago de Chile, Chile; Departamento de Ciencias Biomédicas, Universidad de Valparaíso, Valparaíso, Chile.
authors: Felipe
authors: F
authors: Luna
authors: Instituto de Neurocirugía Asenjo, Santiago de Chile, Chile; Departamento de Ciencias Neurológicas Sede Oriente, Universidad de Chile, Santiago de Chile, Chile; Unidad de Otoneurología, Instituto de Neurocirugía Asenjo, Santiago de Chile, Chile.
authors: Homero
authors: H
authors: Sariego
authors: Instituto de Neurocirugía Asenjo, Santiago de Chile, Chile; Unidad de Electrofisiología, Instituto de Neurocirugía Asenjo, Santiago de Chile, Chile.
authors: Juan José
authors: JJ
authors: Marengo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009464:Neuroma, Acoustic / Q000175:diagnosis / Q000601:surgery*; D011446:Prospective Studies; D013997:Time Factors; D016896:Treatment Outcome; D055815:Young Adult
keywords: Acceso retrosigmoideo; Acoustic neuroma; Facial nerve; Microcirugía; Microsurgery; Nervio facial; Neuroma acústico; Retrosigmoid approach; Schwannoma vestibular; Vestibular schwannoma