title: [Cervival spine movement during light-guided orotracheal intubation with lightwand stylet (Trachlight)].
abstract: We assessed the degree of movement of the cervical spine (C-spine) during light-guided orotracheal intubation using a lightwand stylet (Trachlight). Twenty ASA 1-2 patients were studied. Following induction of anesthesia and obtaining muscle relaxation, the cross-table lateral radiograph of C-spine was taken before and during the intubation with Trachlight. We measured the distance between the spinous processes of C1 and the occiput (delta C1-occiput), and the degree of displacement of C1 and C5 against C3 (delta C1 + C5) by tracing the standard and intubation films. The results showed that delta C1-occiput was larger and delta C1 + C5 was smaller with Trachlight than with conventional or McCoy laryngoscopy we had previously reported. We concluded that light-guided intubation technique using Trachlight needed less movement of the C-spine in contrast to direct laryngoscopy. We believe that Trachlight is an easy, alternative and beneficial device for patients in whom cervical spine movement is limited or undesirable.
authors.affiliation: Department of Anesthesia, Shin Tokyo Hospital.
authors.forename: A
authors.initials: A
authors.lastname: Konishi
authors.forename: K
authors.initials: K
authors.lastname: Kikuchi
authors.forename: M
authors.initials: M
authors.lastname: Sasui
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002574:Cervical Vertebrae / Q000502:physiology*; D005260:Female; D006801:Humans; D007442:Intubation, Intratracheal / Q000295:instrumentation / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009068:Movement