Assessing anesthesiology residents’ out-of-the-operating-room (OOOR) emergent airway management

Abstract Background At many academic institutions, anesthesiology residents are responsible for managing emergent intubations outside of the operating room (OOOR), with complications estimated to be as high as 39%. In order to create an OOOR training curriculum, we evaluated residents’ familiarity with the content and correct adherence to the American Society of Anesthesiologists’ Difficult Airway Algorithm (ASA DAA). Methods Residents completed a pre-simulation multiple-choice survey measuring their understanding and use of the DAA. Residents then managed an emergent, difficult OOOR intubation in the simulation center, where two trained reviewers assessed performance using checklists. Post-simulation, the residents completed a survey rating their behaviors during the simulation. The primary outcome was comprehension and adherence to the DAA as assessed by survey responses and behavior in the simulation. Results Sixty-three residents completed both surveys and the simulation. Post-survey responses indicated a shift toward decreased self-perceived familiarity with the DAA content compared to pre-survey responses. During the simulation, 22 (35%) residents were unsuccessful with intubation. Of these, 46% placed an LMA and 46% prepared for cricothyroidotomy. Nineteen residents did not attempt intubation. Of these, only 31% considered LMA placement, and 26% initiated cricothyroidotomy. Conclusions Many anesthesiology residency training programs permit resident autonomy in managing emergent intubations OOOR. Residents self-reported familiarity with the content of and adherence to the DAA was higher than that observed during the simulation. Curriculum focused on comprehension of the DAA, as well as improving communication with higher-level physicians and specialists, may improve outcomes during OOORs.https://deepblue.lib.umich.edu/bitstream/2027.42/137699/1/12871_2017_Article_387.pd

Virtual reality simulation for critical pediatric airway management training.

BACKGROUND: Pediatric airway emergencies are relatively rare, but have potentially devastating consequences. Simulation based education is important in providing zero-risk management experience for these critical events. AIMS: The aim of the study was to assess usability and feasibility of combined interactive instructional videos and a novel Virtual Reality (VR) trainer for healthcare professionals and to evaluate the impact of this combination on learners' knowledge of critical airway events in children. METHODS: The study population included medical students, residents, faculty, and advanced practice nurses. Participants completed a short baseline knowledge pre-test of pediatric airway emergency management, followed by these consecutive interventions: (1) Interactive instructional pediatric airway videos and (2) VR trainer (HoloLens technology), simulating a pediatric critical airway event. Participants were randomized to manage anaphylaxis or foreign body aspiration. Finally, participants completed a second knowledge test (post-test) and a survey of their perceptions of the videos and VR trainer. RESULTS: Forty-one participants were included in the study. Overall, both interventions were well received. Positive perceptions included realism, interactivity, and active learning environment. Negative comments focused on video speed and the VR trainer learning curve. Participants reported preferences for future training of pediatric airway events to include videos and VR trainers, with or without didactic lectures. Most areas of knowledge showed slight to significant improvements following the interventions. Specifically, questions on pediatric anatomy, anaphylaxis, Heimlich maneuver, and foreign body removal showed the highest improvement in scores (P < 0.05). CONCLUSIONS: Interactive videos, in combination with a VR experience, provide promising zero-risk training for pediatric critical airway events. RELEVANCE FOR PATIENTS: Pediatric airway emergencies are relatively rare, but the potential consequences are devastating. VR is established as a valued mode of education with regard to medical emergency training. Multimedia informational and instructional formats result in greater understanding of information. Results from our intervention, combining an interactive video tutorial and a VR experience, show this was well received by a cross section of health-care providers. We demonstrated improved test scores in a pediatric airways quiz.http://deepblue.lib.umich.edu/bitstream/2027.42/174110/2/Virtual reality simulation for critical pediatric airway management training.pdfPublished versionDescription of Virtual reality simulation for critical pediatric airway management training.pdf : Published versio

Mechanical strain to maxillary incisors during direct laryngoscopy

Abstract Background While most Direct laryngoscopy leads to dental injury in 25–39% of cases. Dental injury occurs when the forces and impacts applied to the teeth exceed the ability of the structures to dissipate energy and stress. The purpose of this study was to measure strain, (which is the change produced in the length of the tooth by a force applied to the tooth) strain rate, and strain-time integral to the maxillary incisors and determine if they varied by experience, type of blade, or use of an alcohol protective pad (APP). Methods A mannequin head designed to teach and test intubation was instrumented with eight single axis strain gauges placed on the four maxillary incisors: four on the facial or front surface of the incisors and four on the lingual or back, near the insertion of the incisor in the gums to measure bending strain as well as compression. Anesthesiology faculty, residents, and certified registered nurse anesthetists intubated with Macintosh and Miller blades with and without APP. Using strain-time curves, the maximum strain, strain rate, and strain time integral were calculated. Results Across the 92 subjects, strain varied 8–12 fold between the 25th and 75th percentiles for all four techniques, but little by experience, while strain rate and strain integral varied 6–13 fold and 15–26 fold, respectively, for the same percentiles. Intubators who had high strain values with one blade tended to have high strains with the other blade with and without the APP (all pairwise correlation rho = 0.42–0.63). Conclusions Strain varies widely by intubator and that the use of the APP reduces strain rate which may decrease the risk of or the severity of dental injury