title: Efficacy of video-guided laryngoscope in airway management skills of medical students.
abstract: OBJECTIVE
  Video-guided laryngoscopy, though unproven in achieving better success rates of laryngoscopy outcome and intubation, seems to provide better glottic visualization compared with direct laryngoscopy. The objective of this study was to compare the efficacy of video-guided laryngoscope (VGL) in the airway management skills of medical students.
  
  
  METHODS
  Medical students throughout their anesthesiology rotations were enrolled in this study. All students received standard training in the airway management during their course and were randomly allocated into two 20 person groups. In Group D, airway management was performed by direct laryngoscopy via Macintosh blade and in Group G intubation was performed via VGL. Time to intubation, number of laryngoscopy attempts and success rate were noted. Successful intubation was considered as the primary outcome.
  
  
  METHODS
  All data were analyzed using SPSS 16 software. Chi-square and Fisher's exact test were used for analysis of categorical variables. For analyzing continuous variables independent t-test was used. P < 0.05 was considered as statistically significant.
  
  
  RESULTS
  Number of laryngoscopy attempts was less in Group G in comparison to Group D; this, however, was statistically insignificant (P: 0.18). Time to intubation was significantly less in Group G as compared to Group D (P: 0.02). Successful intubation in Group G was less frequently when compared to Group D (P: 0.66). Need for attending intervention, esophageal intubation and hypoxemic events during laryngoscopy were less in Group G; this, however, was statistically insignificant.
  
  
  CONCLUSIONS
  The use of video-guided laryngoscopy improved the first attempt success rate, time to intubation, laryngoscopy attempts and airway management ability of medical students compared to direct laryngoscopy.
authors.affiliation: Department of Anesthesiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Peirovifar
authors.affiliation: Department of Anesthesiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Ata
authors.initials: A
authors.lastname: Mahmoodpoor
authors.affiliation: Liver and Gastrointestinal Disease Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran.
authors.forename: Samad Ej
authors.initials: SE
authors.lastname: Golzari
authors.affiliation: Road Traffic Injury Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Hassan
authors.initials: H
authors.lastname: Soleimanpour
authors.affiliation: Department of Anesthesiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Yashar
authors.initials: Y
authors.lastname: Eslampour
authors.affiliation: Department of Anesthesiology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Vahid
authors.initials: V
authors.lastname: Fattahi
keywords: Airway management; education; medical students; video-guided laryngoscope