simulation in education: making it work - medicine.nus.edu.sg · comments : hps a good and...
TRANSCRIPT
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Simulation in Education:Making it Work
Dr Ti Lian KahAssistant ProfessorDepartment of Anaesthesia
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Presentation Overview
Simulation in Medical EducationDefining fidelitySimulation in Department of AnaesthesiaWhat is in the literature about simulation: Benefits, Barriers & Critical Factors
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Apprenticeship Model
See one, do one, teach oneLearning on patients
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Apprenticeship Model
Weaknesses of apprenticeship modelTraining clinicians in risky procedures on real patients is less acceptableLimited opportunities to experience rare events and crisesApprenticeship means you have to wait for something to happen to learnTraining for teamwork is non-existantHigh cost of teaching in clinical environment
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“In order to make a good surgeon, you need to fill a lot of cemeteries”
anonymous
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Key Driver in Simulation Worldwide is Patient Safety
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Published by Institute of Medicine, USA in 2000Medical errors cause 98,000 deaths annuallyRecommended the use of simulators for training
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“DÉJÀ VU IS A GOOD THING FOR A PILOT TO FEEL WHEN WALKING INTO A COCKPIT”
Boeing Advertisement
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“…no industry in which human lives depend on skilled performance has waited for unequivocal proof of the benefits of simulation before embracing it.”
D. Gaba, Anesthesiology 1992
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The Underlying Reasons for using Simulator Training
It’s ExperientialFor changing behaviour, simulation is better than books and lecturesIt is safer to practice on simulators than on patients
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Simulation in Anaesthesia
Historically, anaesthesia has led the way in patient safety and educationIn 1980s, the Anesthesia Patient Safety Foundation (ASPF) became the world’s first patient safety organizationIn 1986, Stanford pioneered CASE (Comprehensive Anesthesia Simulation Environment) for team performance during critical eventsUniv of Florida used simulators to introduce residents to anaesthesia techniques, common errors and machine failure (ACRM: Anesthesia Crisis Resource Management)
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Simulation in Dept of Anaesthesia
Low Fidelity Simulation – Screen-based SimulationIntermediate Fidelity Simulation – task trainer for IntubationGroup teaching with Human Patient Simulator (HPS), a High Fidelity Simulation toolIndividual teaching with HPS
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Screen-Based Simulation
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Gas Man
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Intermediate Fidelity Simulation Tools
Replicates part of the environmentSimulation of a subset of functionalityVirtual reality, haptic systems, part task modelsTrain basic and complex technique related to psychomotor skills
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Endotracheal Intubation
Study to evaluate 2 different teaching techniquesAll students watched a standard videoDirected teaching – brought through step-by-stepExperiential teaching – swim or sinkRescue after 10 minAssessed as pass or fail; and overall score based on [1] equipment prep, [2] correct technique, [3] successful intubation & placement confirmation and [4] ventilation between attemptsRecalled at 3, 6, 9 and 12 months
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Intubation Module
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Check Placement & Ventilate
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Preliminary Results
36 students17 in directed group, 19 in experiential groupAt 3 months, experiential group had 78% pass rate vs. 41% in directed groupOverall scores were higher in experiential group [82% vs. 72%]
Ti et al, 2006
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INTUBATION MODULEQuality of video Usefulness of practical instructions
17
Excellent 26%
Above average 54%
Average 16%
Below average 3% Poor 1%
Excellent 30%
Above average 49%
Average 17%
Below average 2% Poor 2%
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INTUBATION MODULEGave more confidence in
intubating patientsImproves success rate
of intubation
18
Excellent 25%
Above average 47%
Average 18%
Below average 9%Poor 1%
Yes 67%
No 26%
Neutral 7%
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More Questions than Answers
Awaiting completion of trialWill there still be a difference at 6-12 months?Does it translate into greater confidence or success in real life? Better patient outcome?Will we get similar results with other tasks [cvp insertion, laryngeal mask, iv cannulation]?What is the role of stress in learning, if any?
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High Fidelity Simulation Tools
RequirementsRealismAuthenticityAcceptability
High fidelity simulation requires suspension of disbelief
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Nature’s High Fidelity Simulation:Smoke and Mirrors
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High Fidelity Simulation Tools
Dynamic, integrated systemsSophisticated, life-like manikin with computer programmesComplex models of cardiovascular & respiratory physiologyExtensive pharmacological modeling of drugsMeti-HPS and Laerdal SimMan
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Meti HPS
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Simulation Laboratory
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Control Room
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Group Teaching with HPS (Year 1)
Cardiovascular & Respiratory Physiology to Year 1 Medical StudentsLarge groups of 20-25Demonstrate manipulation of cardiac output & changes in pulmonary mechanics and gas exchangeLess than ideal set up although student feedback has been very good
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Group Teaching with HPS (Year 3)
Pharmacology for Year 3Again, in large groupsUtilizes drug recognition system of HPSAgonist, antagonist, partial agonistGood feedback
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Individual Teaching with HPS
Crisis management to Year 4 studentsTo be effective, ideal group size should not exceed 6 Hands-on component essentialStudy from Univ of Toronto suggests that HPS is no better than video teaching if students crowd around HPS
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Crisis Management
Groups of 4-6 students6 scenarios used with common historyScenarios were anaphylaxis, myocardial infarction, pulmonary embolism, tension pneumothorax, hypovolemic shock and severe bronchospasmMedical students individually managed a scenario while others watched live via video-link
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Introduction
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Managing a Scenario
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Resuscitation
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Debriefing
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Debriefing
Important part of processTutor facilitated5 learning objectives emphasized: [1] crisis recognition, [2] basic management, [3] differential diagnosis, [4] specific management and [5] correct drugsVideo playbackOpinions, Q & A
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HUMAN PATIENT SIMULATOR MODULE
No 2%
Were the scenarios appropriate and realistic?
Is the time allocated for the simulator training adequate?
14
Yes 98%
No 35%
Yes 65%
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COMMENTS : HPSProbably can give more obvious hints of the scenario.
More time, more sessions will be good
Make use of HPS in A&E modules too
I like it very much
We should be periodically have the chance to do such training to familiarize in the procedures instead of only one
More time would be better! The HPS is an excellent teaching aid
Enjoyable
Good and fun
Generally, good experience
Very fun and engaging
HPS is very, very useful.
More of such sessions should be conducted at regular intervals of our training. It truly helps us learn
15
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COMMENTS : HPS
A good and different learning experience. Number of sessions should be increased. Relevant module
It is a very good training and should be further emphasis
Should allocate more time for this. Very useful allows practical application and knowledge
I felt that this program can be expanded
Very good module, should have more time allocated for this.
Very useful. Made us realize how unprepared we are
It should be increased in frequency to other years such as Year 5
More time and freedom to practice all scenarios
HPS is effective in simulating acute scenarios. More sessions will be good
Most interesting and useful of all the topics in the anaesthesia posting. Really improves learning and very interesting and very easy to recall.
16
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Study: Hot Seat vs Control
To determine if the person who was in the hot seat will perform better during retestOne of the previous scenarios randomly chosenStudents managed the scenarios individuallyScores based on learning objectivesMarked offline by 2 blinded assessors
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Preliminary Results
54 students participated, 10 hot seat & 44 controlsHot seat students had better scores [72% vs. 64%]Hot seat students were the highest or second highest scorer in their groups 70% of the time vs. 36% for control [p=0.078]
Ti et al, 2006
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Hot Seat Study
Await completion of the studyIndividual teaching is very resource intensiveIdeal group size not establishedTeam dynamics not testedRole of stress unknown
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Benefits of Simulation
Skill development / assessmentClinical skills practice in safe environmentPerformance evaluationEncourages self-assessmentCredentialing & certification
Culture / team developmentCrisis resource management in a team environmentMulti-disciplinary, problem-solving approach
SafetyControlled exposure to high acuity, low frequencyDetailed debriefingPatient safetyStandardization of protocols and proceduresResearch tool: improve education, error reduction, infection control
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Barriers to Simulation
Under-funding & under-resourcingOvercome traditional attitudes & practicesGenerating institutional & departmental supportSlow growth in simulation technologyLack of championsLack of hard evidence of increased competency or better patient outcomeLimited support for the use of simulation for accreditation and certificationFunding opportunities limited
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Critical Factors for Future of SimulationFinancial Planning
Good business planFinancial autonomy
People and CultureRecruiting educators & simulation championsDevelop culture of patient safetyMulti-disciplinary collaboration
Tools and TechnologyCollaboration between vendors and usersResearch
Critical support from other entitiesMalpractice insurance (e.g. reduction in fees)Certification (simulation as an evaluative tool)Medical device industry (simulation in design, assessment and training)
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Thank You