Korean J Anesthesiol.  2009 Feb;56(2):146-150. 10.4097/kjae.2009.56.2.146.

A comparative study on the efficacy and cardiovascular response generated by macintosh and pentax-AWS video laryngoscopic endotracheal intubation methods

• Cha SM
• Kang H
• Baek CW
• Park JW
• Jung YH

• KMID: 2299309
• DOI: http://doi.org/10.4097/kjae.2009.56.2.146

Abstract

BACKGROUND
The Pentax-AWS is a newly developed rigid video laryngoscope. In comparison to the Macintosh laryngoscope, it offers a significantly improved laryngeal view and facilitates endotracheal intubation. The present study was performed to compare the general efficiency and the cardiovascular responses generated by Macintosh and Pentax-AWS systems during endotracheal intubation.
METHODS
This study included 120 patients with American Society of Anesthesiologists (ASA) physical status class 1 or 2 requiring tracheal intubation for elective surgery. All patients were randomly allocated into two groups: Pentax-AWS (group P) and Macintosh (group M). Induction of anesthesia was performed using fentanyl, thiopental and succinylcholine intravenously. Systolic, mean and diastolic blood pressure (SBP, MBP, DBP) and heart rate (HR) were recorded just prior to induction, 1, 3, and 5 minutes after intubation.
RESULTS
There were no significant differences in SBP, MBP, DBP and HR between both groups. However, group P showed a higher POGO (Percentage of Glottic Opening) score than group M during endotracheal intubation.
CONCLUSIONS
Use of Pentax-AWS in endotracheal intubation did not increase hemodynamic changes compared to the use of Macintosh laryngoscope. Furthermore, Pentax-AWS offered an improved laryngeal view during endotracheal intubation.

Keyword

Cardiovascular response; Intubation; Pentax-AWS; Video laryngoscope

MeSH Terms

Anesthesia
Blood Pressure
Fentanyl
Heart Rate
Hemodynamics
Humans
Intubation
Intubation, Intratracheal
Laryngoscopes
Succinylcholine
Thiopental
Fentanyl
Succinylcholine
Thiopental