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DISASTER DRILL EVALUATION. Gary B. Green, MD, MPH, FACEP Office of Critical Event Preparedness and Response (CEPAR) Johns Hopkins University, Baltimore, Maryland. The Johns Hopkins University Evidence-based Practice Center (EPC) supported by the Agency for Healthcare Research & Quality.
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DISASTER DRILL EVALUATION Gary B. Green, MD, MPH, FACEP Office of Critical Event Preparedness and Response (CEPAR) Johns Hopkins University, Baltimore, Maryland
The Johns Hopkins University Evidence-based Practice Center (EPC)supported by the Agency for Healthcare Research & Quality The Johns Hopkins University Office of Critical Event Preparedness and Response (CEPAR) Johns Hopkins University School of Medicine, Department of Emergency Medicine
Objectives: • Understand the critical role of disaster simulations (drills) and their evaluation in disaster preparedness efforts • Discuss the data collection instruments, methods, and analytical techniques used to perform an objective, quantitative disaster drill evaluation • Describe the challenges faced in the actual performance of disaster drill evaluations and successful strategies to overcome these challenges
Why do disaster drills? • Training • Skills-based • Evaluation • Raise Awareness • Administration, Staff, Public • Team Building • Fulfill regulatory requirements • JCAHO, others
Learning Opportunities: • A drill affords opportunity to learn: • Emergency Operations (Disaster) Plan • Gain/Improve Skills-Based Competence • New, modified job requirements • Operations in unfamiliar and difficult settings • Use of infrequently used equipment • Deal with Large Numbers of Patients • Teamwork • Problem Solving, Improvisation
Drilling as Formative Evaluation: "The purpose of evaluation may be • formative (to provide ongoing feedback so that the learners or curriculum can improve) or • summative (to provide a final "grade" assessment of the performance of the learner or curriculum)" Kern DE, Thomas PA, Howard DM, Bass EB. Curriculum Development for Medical Education: A Six Step Approach. The Johns Hopkins University Press, Baltimore 1998, pp 6-7.
Post-course knowledge assessment Pre-course knowledge assessment Didactic education training (modular courses) Review/modify Disaster plan Skills/Practical Training (Drills) Drill evaluation: (Institutional & Individual skills assessment) (Re) Define stakeholders & goals Modification & re-engineering of training interventions Report & analysis of strengths & weaknesses Continuous Quality Improvement (CQI) Process Applied to Disaster Preparedness Capacity Building
Basic Principles of Drill Evaluation: • Drill/Evaluation Planning • Components of disaster response to be evaluated • Drill evaluation tools & techniques
1. Define Drill Goals and Boundaries • What are Specific Goals for this Drill? • Clinical response training • Incident Command System (ICS) effectiveness • Chemical, biological, radiation incident response • Efficiency of response • Define Boundaries of Drill Activities • Jurisdictions involved: • Single or multi-agency • Interface with outside agencies? • Hospital, pre-hospital, both? • Medical only, law enforcement, others? • Decontamination activities included?
2. Consider Resources Available • Adequate time before drill? • Buy-in by key stakeholders? • Live volunteers available? • Distinct evaluation team? • Time and place available for debriefing? • Continuing normal services during drill? DO NOT BE AMBITIOUS BEYOND RESOURCE AVAILABILITY!!
3. Select Specific System Response Components to be Evaluated: • Clinical Operations • Efficiency (Drill Flow) • Logistics (materials, facilities, transportation) • Other Operational Components • S&R, Security, PR, etc • Incident Command System • Most critical component • Defines borders of other components • System Integration • Interagency coordination, communications • Human Resources • Others as defined by local plan
“Smart” observers “Smart” casualties Post-drill interviews Group debriefing Self-assessment Photo, audiotape and/or videotape assessment Checklists Scribes Victim based recording Cross-evaluation Provider and/or victim flow tracking Computer modeling 4. Select Appropriate Evaluation Methods and Instruments Based Upon Goals and Resources:
Combined Approach to Evaluation • Clinical Care • Trained observers • Provider recording (triage tags, etc.) • “Smart” patients • Standardized Victim Scenarios • Drill flow • Victim Movement • Victim/Provider interactions • Entrance/exit observers • Scene Diagrams • Photos/Videotape analysis • Incident Command, System Integration • Direct observation difficult • Pattern Analysis of response • Self assessment & “cross-evaluation” • Plan Compliance (Qualitative Methods) • Checklists • Evaluators’ narrative comments • Videotape review • Debriefing comments • Survey or structured interview of participants
Clinical Care Evaluation • Standardized Victim Scenarios • Clearly written victim descriptions • Expert panel consensus process: • Triage Level: Primary and Secondary Triage • Critical Actions: Scene, Treatment Area • Victims moulaged per pre-written scenarios • Scenarios may change during event • Victim Based Recording • “Smart” Victims • Observer Based Recording • 6 victims/observer maximum
2 TRIAGE LEVEL ڤRed ڤ Yellow ڤ Green ڤ Black CRITICAL ACTIONS ڤOpen Airway ڤOxygen ڤVentilate ڤIntubation ڤNeedle Thoracostomy ڤChest Tube ڤDirect Pressure ڤIntravenous Line ڤTransfusion ڤ Wound Care ڤMedication ڤNothing ڤSpinal Immobilization ڤExtremity Immobilization DISPOSITION ڤ Operating Room ڤ Intensive Care ڤ Hospital ڤMorgue Vital Signs Mental Status: Pulse: Respirations: Capillary Refill: Skin Appearance: Patient Description: Age: Gender: Presentation: Physican Findings: Victim Scenario Card (Triage Area)
16 11 18 12 10 5 6 15 3 8 7 13 Victims Bed Chair 2 Zone III 1 17 9 14 Zone I Zone II 19 20 4
Evaluation of Drill Flow • Assess Efficiency of Operations • Time-based Data Collection • Relative rather than absolute times important • Flow Measured at Key Locations (Bottlenecks) • Can capture all movements with exact times for Victims, Providers and Resources • Scene entry/exit, decon, triage, treatment areas • Clear Identification System Critical • Allows Pattern Analysis
Evaluation of ICS • Most Difficult Component to Objectively Evaluate • Multiple simultaneous communications and decisions • Impractical to directly observe, record time and content of every communication • Observers and/or scribes can capture pre-determined “key” communications and actions • Pattern Analysis of Drill Flow • Assess active management of response components • Assess system response to situational changes • Structured Self Assessment & “Cross-Evaluation” • Adequacy, clarity of communications • Understanding of functional roles
Unit Leader Survey 1- Strongly Agree, 2– Neutral, 3– Strongly Disagree
Drill Participant Survey 1- Strongly Agree, 2– Neutral, 3– Strongly Disagree
Closing Perspectives • Plan drills targeted to specific goals • Include evaluation in plans for all drills • Use evaluation methods congruent with goals of drill & available resources • Seek adequate support for stronger evaluation designs • Evaluation results should drive all future planning and training activities