reducing emergency department visits due to adverse events from medications daniel budnitz md, mph,...
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Reducing Emergency Department Visits due to Adverse Events from
Medications
Daniel Budnitz MD, MPH, CDR USPHSDivision of Healthcare Quality Promotion
USPHS Scientific & Training Symposium
May 25, 2010
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Disclaimer
“The findings and conclusions in this presentation are those of the author and do not necessarily represent the official position of the Centers for Disease Control and Prevention”
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1. An injury-based approach to medication safety– Errors vs. harm
2. Population-based harm data for priority setting– Frequency, severity, preventability
3. Patient-centered interventions– Opportunities, collaboration & injury prevention
Overview
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1. An Injury-based Approach
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Bank Robber
http://www.fbi.gov/libref/historic/famcases/sutton/sutton.htm
1901 - 1980
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William SuttonGentleman, Innovator, &… Bank Robber
http://www.fbi.gov/libref/historic/famcases/sutton/sutton.htm
1901 - 1980
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“Slick Willie” SuttonGentleman, Innovator, &… Bank Robber
“Why do you rob banks?”
“Because, that’s where the money is.”
http://www.fbi.gov/libref/historic/famcases/sutton/sutton.htm
1901 - 1980
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Sutton’s Law & Drug Safety
“Where the highest costs are incurred, therein lies the highest potential for over-all cost reduction”
-- Sutton’s Law applied to management accounting
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Sutton’s Law & Drug Safety
“Where the highest costs are incurred, therein lies the highest potential for over-all cost reduction”
-- Sutton’s Law applied to management accounting
“Where the highest number of adverse drug events (ADEs) occur, therein lies the highest potential for over-all harm reduction”
-- Sutton’s Law applied to drug safety
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2000 2006
Mediation Safety in 2000s:
Decade of Errors
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A Focus on Error Reduction…
Errors
Errors = Preventable events that may lead to inappropriate medication use or patient harm
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... Rather Than Harm Reduction
ADEs
ADE = Injury (harm) caused by a drug
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Some Errors ∩ Harm
Stable Patient
ADEsErrors
Injured Patient
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Why Not Start with Harms?
Errors
(Harms)
ADEs
Injured Patient
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Focus on Harms that are…
Errors
Injured Patient
Serious,Common,
Preventable
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Design Intervention
Evaluate Impact
Identify Risk & Protective
Factors
Identify the Harm
Population Surveillance
Data Drive the Public
Health Approach
Public Health Approach
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Design Intervention
Evaluate Impact
Identify Risk & Protective
Factors
Identify the Harm
Public Health Approach
Little national data on harms
Population Surveillance
Data Drive the Public
Health Approach
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Evaluate Impact
Identify the Harm
January, 2000
“…the data on emergency department visits and hospital admissions are insufficient for estimating overall ADE frequency”
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2. Population-based Harm Data for Priority Setting
Frequency, severity, preventability
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Why Emergency Visits & Hospitalizations?
Medication use 1
– 82% adults take at least 1 medicine– 18% adults >64 take 10 or more
1. 1. Slone Epidemiology Center at Boston University, 2008
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Why Emergency Visits & Hospitalizations?
Medication use 1
– 82% adults take at least 1 medicine– 18% adults >64 take 10 or more
Medication costs 2
1. 1. Slone Epidemiology Center at Boston University, 20082. 2. Hoffman et al. Am J Health Syst Pharm 2009;66:237-57
Hospitals Clinics Community
$27B $33B $227B
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Serious, Acute Harms: Emergency Departments (EDs)
Community Setting
ED visit
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Stratified probability sample of 24-hour EDs- 63 hospitals- 4 strata by hospital size / 1 stratum for pediatric
Cases weighted by inverse probability of selection
NEISS-CADES:Population Representative Surveillance
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Case Definition (ADEs)
Injury from the use of a drug:• Emergency department (ED) visit• Treating physician explicitly attributed • To a drug*• Intended for therapeutic use
*Drugs include: Rx, OTC, Supplements, Vaccines
Budnitz DS et al. JAMA 2006;296:1858-1866
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Estimated Annual Impact of
Ambulatory Adverse Drug Events
2004-2005Deaths
Hospitalizations
Emergency visits
Office visits
>700,000
>117,000
> 3.6 million
?
14.3 per 1,000
2.4 per 1,000
0.4 per 1,000
Zhan C et al. Jt Comm J Qual Patient Saf 2005;7:372-8
Budnitz DS et al. JAMA 2006;296:1858-66
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ED Visits for ADEs by Event Type, United States, 2004-2005
Budnitz, D. S. et al. JAMA 2006;296:1858-1866.Budnitz DS et al. JAMA 2006;296:1858-1866
Similar numbers of ED visit for allergic reactions, non-allergic adverse effects, and unintentional overdoses
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Budnitz, D. S. et al. JAMA 2006;296:1858-1866.Budnitz DS et al. JAMA 2006;296:1858-1866
Hospitalizations for ADEs by Event Type, United States, 2004-2005
Most hospitalizations due to unintended overdoses 66% due to warfarin, antidiabetic agents, or other
narrow-therapeutic index drugs
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Drugs Implicated in ED Visits for ADEs United States, 2004-2005
Budnitz DS et al. JAMA 2006;296:1858-1866
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ADEs Treated in EDs by Patient Age, United States, 2004-2005
Budnitz DS et al. JAMA 2006;296:1858-1866
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Design Intervention
Identify Risk & Protective
Factors
Identify the Harm
Older Adults~ 1 out of 150 per year~ 7x hospitalization rate
~ 927,000 ED visits, 2008
Public Health Approach for Medication Safety, 2008
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Design Intervention
Identify Risk & Protective
Factors
Identify the Harm
Older Adults~ 1 out of 150 per year~ 7x hospitalization rate
~ 927,000 ED visits, 2008
Public Health Approach for Medication Safety
“Potentially Inappropriate” Medications ?
?
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Budnitz, DS et al. Ann Intern Med 2007;147:755-765
“Potentially Inappropriate” Medicines
Adapted from Fick DM et al. Arch Intern Med 2003;163:2716-25
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“Potentially Inappropriate” Prescribing Impacts Interventions
National Quality Measures– HEDIS / National Quality Forum measure– AHRQ annual Healthcare Quality Report
CMS– Monitoring of nursing home prescribing– Part D payment for Medication Therapy Management – 9th Scope of Work for quality improvement
Computerized clinical decision support– “Meaningful Use”
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Frequency of ED Visits for ADEs,Persons ≥65 Years
Budnitz DS et al. Ann Intern Med 2007;147:755-765
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Frequency of ED Visits for ADEs,Persons ≥65 Years
Budnitz DS et al. Ann Intern Med 2007;147:755-765
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Frequency of ED Visits for ADEs,Persons ≥65 Years
Budnitz DS et al. Ann Intern Med 2007;147:755-765
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Risk of ED Visits for ADEs,Persons ≥65 Years
Budnitz DS et al. Ann Intern Med 2007;147:755-765
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Based on Harm: Focus on Older Adults & Certain Medicines
Frequency:– 1 in 150 older adults / year
Severity: 7x more likely to be hospitalized
Preventability: Dosing and monitoring– 3 drugs (insulin, warfarin, and digoxin)
– 33% of estimated ADEs treated in EDs
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Design Intervention
Identify Risk & Protective
Factors
Identify the Harm
Older Adults~ 1 out of 150 per year~ 7x hospitalization rate
~ 927,000 ED visits, 2008
Public Health Approach for Medication Safety
“Potentially Inappropriate” Medications
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Design Intervention
Identify Risk & Protective
Factors
Identify the Harm
Older Adults~ 1 out of 150 per year~ 7x hospitalization rate
~ 927,000 ED visits, 2008
Public Health Approach for Medication Safety
AnticoagulantsInsulins
NTI Medicines
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Design Intervention
Identify Risk & Protective
Factors
Identify the Harm
Public Health Approach
Evaluate Impact
AnticoagulantsInsulins
NTI Medicines
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http://www.healthypeople.gov/HP2020/Objectives/
4 proposed Sub-objectives
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3. Patient-centered Prevention Partnerships
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Budnitz DS et al. JAMA 2006;296:1858-1866
ADEs Treated in EDs by Patient Age, United States, 2004-2005
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Unintentional Overdoses Cause Most Emergency Visits in Children <5 Years Old
1,022
5,022
7,911
56,41627,500
Type Percent
Unintentional Overdoses
58%
Allergic Reactions 28%
Side Effects 5%
Vaccine Reactions 8%
Secondary Effects 1%
Cohen AL, et al. J Pediatr 2008;152: 416-421
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Rates of Emergency Department Visits for Unintentional Overdoses, 2004-2005
Schillie SF et al. Am J Prev Med 2009;37:181-7
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Rates of Emergency Department Visits for Unintentional Overdoses, 2004-2005
Schillie SF et al. Am J Prev Med 2009;37:181-7
1 out of every 180 two-year-olds each year
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Underlying Causes of Emergency Department Visits for Child Overdoses,
2004-2005
Schillie SF, et al. Am J Prev Med 2009;37:181-7
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Underlying Causes of Emergency Department Visits for Child Overdoses,
2004-2005
Schillie SF, et al. Am J Prev Med 2009;37:181-7
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Underlying Causes of Emergency Department Visits for Child Overdoses,
2004-2005
Schillie SF, et al. Am J Prev Med 2009;37:181-7
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PROTECT Partnership
Preventing Overdoses & Treatment Errors in Children Taskforce
Federal agencies, manufacturers (OTC), professional organizations, safety experts
Innovative safety packaging (↓ ingestions)
Standardize dosing units and abbreviations for liquid medicines (↓ errors)
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Packaging Innovations to Reduce Pediatric Ingestions
Active Passive
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Principles of Standardization & Health Literacy
http://www.chpa-info.org/scienceregulatory/Voluntary_Codes.aspx
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Tamiflu Suspension
Medication-safety efforts in ambulatory settings must recognize the central role of patients and lay caregivers in medication management. Instructions and labeling should be clear, concise, consistent, and designed for the way prescriptions are written and used. As highlighted by Parker et al., dispensing liquid medications with dosing devices with markings that match the units used in the instructions on the pharmacy label is one necessary step toward safer medication use.
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Design Intervention
Identify Risk & Protective
Factors
Identify the Harm
Improving packaging, labeling
- 1 in 180 two-year olds - Unsupervised ingestions
98,000 ED visits/year for children <=5 years old
Public Health Approach for Medication Safety
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http://www.healthypeople.gov/HP2020/Objectives/
4th proposed Sub-objective
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1. Injury-based approach to medication safety– Identify the harms
2. Population-based harm data for priority setting– Identify common, serious, preventable harms
3. Patient-centered interventions– Use opportunities, collaboration & lessons of
injury prevention
Summary
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Acknowledgements
Division of Healthcare Quality Promotion, CDC
• Nadine Shehab• Kelly Weidenbach• Victor Johnson• Melissa Schaefer• Maribeth Lovegrove• Michael Jhung• Daniel Pollock• Sarah Schillie• Chesley Richards
Center for Drug Evaluation and Research, FDA
• Karen Weiss• Solomon Iyasu• Gerald Dalpan• Judy Staffa• Pamela Scott• Mary Willie• Margie Goulding• Charles Ganley• Sue Johnson
US Consumer Product Safety Commission
• Tom Schroeder• Joel Freidman• Cathleen Irish
TM
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Additional Slides
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• Antibiotics– 7 of the top 14 drugs implicated
in ED visits for ADEs– 142,000 ED visits/year– ~ 80% are allergic reactions
• Risks of adverse events from antibiotics incorporated into national campaign to promote judicious antibiotic use– CDC Get Smart
Implications for Antibiotic Use
Budnitz DS, et al. JAMA 2006;296:1858-66.Shehab N, et al. Clin Infect Dis 2008;47:735-43.
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OTC Medicines are Commonly Involved in Emergency Visits for Overdoses
Schillie SF, et al. Am J Prev Med 2009;37:181-7
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Example: Innovations to Reduce Needlesticks
Active Passive
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Drug Management by Setting
Hospital
Who prescribes? MD
Who administers? RN
Who stores? PharmD
Who monitors? MD, RN, PharmD, Lab
Support systems? Extensive
ADE monitoring? Incident reporting
Basis for safety interventions?
Systems engineering Industrial quality control
Budnitz DS and Layde PM. Pharmacoepidemiol Drug Saf. 2007;16:160-5
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Drug Management by Setting
Hospital Ambulatory
Who prescribes? MD MD & Layperson
Who administers? RN Layperson
Who stores? PharmD Layperson
Who monitors? MD, RN, PharmD, Lab Layperson & MD
Support systems? Extensive Minimal
ADE monitoring? Incident reporting Public health surveillance
Basis for safety interventions?
Systems engineering Industrial quality control
Injury Prevention Strategies
Budnitz DS and Layde PM. Pharmacoepidemiol Drug Saf. 2007;16:160-5
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Ongoing surveillance based on chart abstraction
NEISS-CADES:Data Collection
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Setting: only ED visits– No inpatient follow-up or mortality
Underestimates– Relies on caregiver recognition, physician
documentation, and accurate abstraction– High PPV, lower sensitivity
Selection biases– Acute onset ADEs– ADEs which can be diagnosed in ED
Limitations
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1. Look in Diagnosis Section of chart:
Do diagnoses include key words?• Allergic reaction• Adverse effect• Side-effect (s/e)• Secondary to (2°to, due to, related to)• Ingestion (poisoning)• Toxicity (overdose, supra-therapeutic level)• Medication error
Or suspicious symptoms?• Angioedema (face/lip/throat swelling)• Anaphylaxis (severe allergy)• Rash (urticaria, dermatitis)• Bleeding (GI Bleed, hematemesis, epistaxis,
hypocoaguability, high INR/PT)• Hypoglycemia (low blood sugar)
2. Is a Drug involved?Drugs include: prescription meds,
over-the-counter meds, vaccines, vitamins, & dietary supplements.
Identifying ADE Cases
YES
NO
NO3. Is there evidence of:• Suicide attempt?• Intentional overdose?• Abuse / Recreational use?
YES
4. Fill out ADE Screen:
• Record ED chart DIAGNOSISword for word
• Record drug name(s)
• If available, record dose, route, frequency, and duration
• Record reason for visit, testing,and treatments
• Record any other information(e.g., discharge instructions or medication error information)
YES
NO
STOPDo not report
ADE
STOPDo not report
ADE
START
FINISH
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• Drug data– Name of implicated medication(s)– Dose, frequency, duration, route– Concomitant drugs
• Patient demographics• Testing and treatments in ED • Physician diagnoses• Patient disposition• Narrative description of event
Recording Case Data
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Design Intervention
Identify Risk & Protective
Factors
Identify the Problem
Insulin, Warfarin
Older Adults- 2x rate ED visits- 7x hospitalization rate
256,000 ED visits in 2008
Public Health Approach for Medication Safety
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Identify Plausible InterventionsPhase-Factor Matrix
FactorPhase
Host (Patient)
Agent (Drug) Environment
Pre-event
Event
Post-event
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Preventing Adverse Events from Warfarin
Budnitz DS and Layde PL Pharmacoepidemiol Drug Saf 2007;16:160-5