title: How I do it: the mononostril endonasal transethmoidal-paraseptal approach.
abstract: The use of endoscopes in transnasal surgery offers increased visualization. To minimize rhinological morbidity without restriction in manipulation, we introduced the mononostril transethmoidal-paraseptal approach.
  
  
  
  The aim of the transethmoidal-paraseptal approach is to create sufficient space within the nasal cavity, without removal of nasal turbinates and septum. Therefore, as a first step, a partial ethmoidectomy is performed. The middle and superior turbinates are then lateralized into the ethmoidal space, allowing a wide sphenoidotomy with exposure of the central skull base.
  
  
  
  This minimally invasive transethmoidal-paraseptal approach is a feasible alternative to traumatic transnasal concepts with middle turbinate and extended septal resection.
authors.affiliation: ENDOMIN - Center for Endoscopic and Minimally Invasive Neurosurgery, Hirslanden Hospital, Zurich, Switzerland.
authors.forename: Robert
authors.initials: R
authors.lastname: Reisch
authors.affiliation: Center for Otorhinolaryngology, Head and Neck Surgery, Hirslanden Hospital, Zurich, Switzerland.
authors.forename: Hans Rudolf
authors.initials: HR
authors.lastname: Briner
authors.affiliation: ENDOMIN - Center for Endoscopic and Minimally Invasive Neurosurgery, Hirslanden Hospital, Zurich, Switzerland. anne-katrin.hickmann@hirslanden.ch.
authors.forename: Anne-Katrin
authors.initials: AK
authors.lastname: Hickmann
mesh_terms: D005005:Ethmoid Sinus / Q000601:surgery*; D006801:Humans; D010911:Pituitary Neoplasms / Q000601:surgery*; D019292:Skull Base Neoplasms / Q000601:surgery*; D013101:Sphenoid Sinus / Q000601:surgery*
keywords: Endoscopy; Mono-nostril; Pituitary; Skull-base; Trans-sphenoidal