title: Irrigation-suction straw sheath system for a rigid endoscope during endonasal endoscopic pituitary surgery.
abstract: OBJECTIVE
  One of the most problematic conditions during endonasal endoscopic pituitary surgery is blurred endoscopic vision caused by blood or bone dust. To address this problem we used a new device, the irrigation-suction straw sheath system originally developed for endoscopic sinus surgery in rhinology, for the endoscopic pituitary surgery.
  
  
  METHODS
  The irrigation-suction straw system (K-endosheath; Koken Co., Tokyo, Japan) consists of a flattened disposable straw catheter which can be attached on a rigid endoscope. When the endoscope is inserted into the oblong catheter, two gaps remain on either side of the endoscope. Through each of these gaps irrigation and continuous suction are performed respectively.
  
  
  RESULTS
  Clear vision could be immediately obtained by pressing the button to release the irrigation water onto the endoscope's front lens. Even targeted irrigation during drilling was possible. Above all, continuous suction was useful to clear the operative field of blood, smoke, or bone dust, ensuring the safety and uninterrupted progress of the procedure.
  
  
  CONCLUSIONS
  This irrigation-suction system has proved to be very useful and easy to use for endonasal endoscopic pituitary surgery. Further development of such new devices and instruments specialized for endonasal endoscopic pituitary surgery will promote the increased use of this minimally invasive technique in neurosurgery.
authors.affiliation: Department of Neurosurgery, Tominaga Hospital, 1-4-48 Minato-machi, Naniwa-ku, Osaka 556-0017, Japan. sig-kubo@momo.so-net.ne.jp
authors.forename: S
authors.initials: S
authors.lastname: Kubo
authors.forename: T
authors.initials: T
authors.lastname: Kikawada
authors.forename: H
authors.initials: H
authors.lastname: Hasegawa
authors.forename: S
authors.initials: S
authors.lastname: Tominaga
authors.forename: T
authors.initials: T
authors.lastname: Yoshimine
mesh_terms: D001769:Blood; D001842:Bone and Bones; D002404:Catheterization; D004391:Dust; D004724:Endoscopy / Q000379:methods*; D004867:Equipment Design; D006801:Humans; D009296:Nasal Cavity / Q000601:surgery; D010911:Pituitary Neoplasms / Q000601:surgery*; D013396:Suction / Q000379:methods; D007507:Therapeutic Irrigation / Q000379:methods
chemical_list: D004391:Dust