title: Comparison of haemodynamic responses to tracheal intubation using the Airway Scope(®) and Macintosh laryngoscope in normotensive and hypertensive patients.
abstract: We compared the effects of the Airway Scope(®) on haemodynamic responses during tracheal intubation with those of direct laryngoscopy in normotensive and hypertensive patients. The systolic blood pressure, diastolic blood pressures and heart rate were recorded: (a) before anaesthesia; (b) immediately before intubation; (c) at intubation; and (d) 1, 2, 3, 4 and 5 min after intubation. In normotensive patients, the increase in blood pressure and heart rate over time were significantly lower with the Airway Scope than with the Macintosh laryngoscope (p < 0.003). In hypertensive patients, however, there was no difference in the changes over time in any of these haemodynamic measures between the two devices (p > 0.05). We conclude that the Airway Scope attenuates haemodynamic responses to tracheal intubation in comparison with the laryngoscope in normotensive but not in hypertensive patients. You can respond to this article at http://www.anaesthesiacorrespondence.com.
authors.affiliation: Department of Anaesthesiology, Saiseikai Yokohama-shi Nannbu Hospital, Yokohama, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Koyama
authors.forename: M
authors.initials: M
authors.lastname: Nishihama
authors.forename: G
authors.initials: G
authors.lastname: Inagawa
authors.forename: Y
authors.initials: Y
authors.lastname: Kamiya
authors.forename: T
authors.initials: T
authors.lastname: Miki
authors.forename: R
authors.initials: R
authors.lastname: Kurihara
authors.forename: T
authors.initials: T
authors.lastname: Goto
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000758:Anesthesia; D000959:Antihypertensive Agents / Q000627:therapeutic use; D001794:Blood Pressure / Q000502:physiology; D005260:Female; D005931:Glottis / Q000502:physiology; D006339:Heart Rate / Q000502:physiology; D006439:Hemodynamics / Q000502:physiology*; D006685:Hoarseness / Q000453:epidemiology / Q000209:etiology; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D007442:Intubation, Intratracheal / Q000295:instrumentation*; D020704:Laryngoscopes; D007828:Laryngoscopy; D008297:Male; D008875:Middle Aged; D010612:Pharyngitis / Q000453:epidemiology / Q000209:etiology; D011183:Postoperative Complications / Q000453:epidemiology; D018401:Sample Size; D055815:Young Adult
chemical_list: D000959:Antihypertensive Agents