Abstract
BACKGROUND: Nasotracheal intubation typically comprises three distinct stages: (i) nasopharyngeal intubation; (ii) direct laryngoscopy to identify the vocal cords; and (iii) the passage of the tracheal tube into the trachea. The aim of this study was to identify and compare the cardiovascular responses associated with each of these stages. METHODS: Seventy-five ASA I or II patients, aged 16-65 yr, requiring nasotracheal intubation as part of their anaesthetic management, received a standardized general anaesthetic and were allocated randomly to receive either nasopharyngeal intubation or nasopharyngeal intubation plus direct laryngoscopy or full nasotracheal intubation. RESULTS: There was a significant hypertensive response, compared with pre-induction levels, in all three groups. The maximum mean (SD) mean arterial pressure in the nasotracheal intubation group was 113 (17.1) mm Hg, which was significantly greater than that in the nasopharyngeal intubation (97 (13) mm Hg) (P
| Original language | English |
|---|---|
| Pages (from-to) | 667-71 |
| Number of pages | 5 |
| Journal | British Journal of Anaesthesia |
| Volume | 91 |
| Issue number | 5 |
| Publication status | Published - 1 Nov 2003 |