PMID- 20650382
OWN - NLM
STAT- MEDLINE
DCOM- 20101108
LR  - 20220318
IS  - 1873-4529 (Electronic)
IS  - 0952-8180 (Linking)
VI  - 22
IP  - 5
DP  - 2010 Aug
TI  - Clinical comparison of two stylet angles for orotracheal intubation with the 
      GlideScope video laryngoscope.
PG  - 352-9
LID - 10.1016/j.jclinane.2009.10.008 [doi]
AB  - STUDY OBJECTIVE: To compare the success of orotracheal intubation in 62 seconds 
      or less using the GlideScope video laryngoscope (GVL) and a 60 degrees or 90 
      degrees angled stylet with reverse loading of the endotracheal tube (ETT). 
      DESIGN: Prospective, randomized study. SETTING: Operating room of a university 
      hospital. PATIENTS: 120 ASA physical status I, II, and III adult patients 
      undergoing elective surgery requiring general anesthesia with orotracheal 
      intubation. INTERVENTIONS: Patients were randomly allocated to two groups (n = 60 
      each); both groups received general anesthesia and neuromuscular relaxation. A 
      conventional ETT was styleted and then bent from its straight configuration just 
      above the cuff, either at 60 degrees or 90 degrees against its concave natural 
      curve (reverse loading). Four attending anesthesiologists, who were blinded as to 
      stylet assignment (the 60 degrees or 90 degrees group), intubated the tracheas of 
      all patients with the GVL using either the primary or secondary stylet. 
      MEASUREMENTS: The primary outcome was success of orotracheal intubation in 62 
      seconds or less. The secondary outcome was actual time to intubation (TTI). MAIN 
      RESULTS: The odds ratio (OR) for intubation success was higher in the 90 degrees 
      group than the 60 degrees group (OR = 10.41; P < 0.03), as evidenced by 59 of 60 
      patients whose tracheas were intubated successfully within 62 seconds, compared 
      with 51 of 60 patients in the 60 degrees group. Seven of the 9 failures were due 
      to inability of the 60 degrees stylet to reach the glottic opening. The three 
      remaining failures were associated with TTI of more than 62 seconds. CONCLUSIONS: 
      The 90 degrees angled malleable stylet with reverse loading of the ETT provided 
      more reliable ETT delivery to the glottic opening and had a higher success rate 
      than the 60 degrees stylet.
CI  - Copyright 2010 Elsevier Inc. All rights reserved.
FAU - Dupanovic, Mirsad
AU  - Dupanovic M
AD  - Department of Anesthesiology and Department of Biostatistics, University of 
      Rochester School of Medicine & Dentistry, Rochester, NY 14642, USA. 
      mdupanovic@kumc.edu
FAU - Isaacson, Sheldon A
AU  - Isaacson SA
FAU - Borovcanin, Zana
AU  - Borovcanin Z
FAU - Jain, Sushma
AU  - Jain S
FAU - Korten, Santiago
AU  - Korten S
FAU - Karan, Suzanne
AU  - Karan S
FAU - Messing, Susan P
AU  - Messing SP
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Randomized Controlled Trial
PL  - United States
TA  - J Clin Anesth
JT  - Journal of clinical anesthesia
JID - 8812166
SB  - IM
MH  - Adult
MH  - Aged
MH  - Anesthesia, General/methods
MH  - Elective Surgical Procedures/methods
MH  - Equipment Design
MH  - Female
MH  - Hospitals, University
MH  - Humans
MH  - Intubation, Intratracheal/*methods
MH  - *Laryngoscopes
MH  - Laryngoscopy/*methods
MH  - Male
MH  - Middle Aged
MH  - Prospective Studies
MH  - Single-Blind Method
MH  - Time Factors
MH  - Video Recording
EDAT- 2010/07/24 06:00
MHDA- 2010/11/09 06:00
CRDT- 2010/07/24 06:00
PHST- 2008/11/26 00:00 [received]
PHST- 2009/09/30 00:00 [revised]
PHST- 2009/10/01 00:00 [accepted]
PHST- 2010/07/24 06:00 [entrez]
PHST- 2010/07/24 06:00 [pubmed]
PHST- 2010/11/09 06:00 [medline]
AID - S0952-8180(10)00176-5 [pii]
AID - 10.1016/j.jclinane.2009.10.008 [doi]
PST - ppublish
SO  - J Clin Anesth. 2010 Aug;22(5):352-9. doi: 10.1016/j.jclinane.2009.10.008.