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Purpose: This study is designed to assess the impact of teaching tracheal intubation using video-guided feedback on the ability to perform and maintain this clinical skill by medical students.
Hypothesis: We hypothesise that, for novices, video-guided feedback provided during tracheal intubation will improve learning and retention of this clinical skill compared to standard teaching using direct visualization feedback.
Competency in laryngoscopic tracheal intubation is a key skill to be developed during the training of medical students. Teaching this technical skill remains a challenge due to the fact that the laryngeal view is limited to one person at a time. Therefore, the feedback given during the procedure by the instructor to the student becomes limited, delayed and thus less efficient. This lack of efficiency could explain the poor success rates of tracheal intubations performed by medical students during the initial learning phase. Over the last ten years, new intubation devices incorporating optic fibers have been commercialized. These new technologies combined to video systems are now increasingly used for teaching purposes. Recent literature tends to show that this new approach could ease the learning process and increase the medical student's satisfaction towards the teaching of tracheal intubation.
Maintaining this knowledge and clinical skill can also be challenging especially for physicians who are not exposed to the intubation technique on a regular basis. Since tracheal intubation is a potentially lifesaving procedure, retention of this competency is crucial.
This study is designed to assess the impact of teaching tracheal intubation using video-guided feedback and the short and mid-term retention of the competency in a population of pregraduate medical students (clinical years 3 and 4).
Medical students enrolled in this study will initially receive standardised training using a short video explaining the tracheal intubation technique. Then, they will be asked to intubate on mannequins for a short period of time (15 minutes).
A total of 18 medical students will be randomly assigned to the following groups:
- Group V: to perform video-guided intubations on six patients under the supervision of an anaesthesiologist.
- Group S: to perform tracheal intubation on six patients under the supervision of an anaesthesiologist using standard teaching technique (direct visualization).
Patients scheduled for elective surgery under general anaesthesia including neuromuscular blockade as part of their anaesthetic management will be considered for this study. Standard monitoring for general anaesthesia will be used. Immediately after induction of general anaesthesia, the anaesthesiologist will confirm the patient's intubation grade. Patients having an intubation grade higher than 2 on the Cormack-Lehane scale, will be excluded.
-Short-term phase (within a week from the initial phase):
Novices will be asked to perform ten tracheal intubations under the supervision of an anaesthesiologist but without any specific feedback.
-Mid-term phase (6 weeks after the initial/short-term phase):
Novices will be asked to perform ten tracheal intubations six weeks after the initial/short term phase under the supervision of an anaesthesiologist without any specific feedback. If the medical student fails to intubate the patient, the anaesthesiologist will perform the technique.
Images from all intubations will be captured on videotape for subsequent review. These images will be used to detect mucosa lacerations, oesophageal intubation, number of attempts and total time required to perform tracheal intubation.
Lastly, a questionnaire will be completed by all medical students to assess their satisfaction towards the teaching technique and their ability to perform tracheal intubation.
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Health Services Research
Centre Hospitalier de l'Université de Montréal (Hôpital Notre-Dame)
Centre hospitalier de l'Université de Montréal (CHUM)
Published on BioPortfolio: 2014-08-27T03:19:45-0400
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