computer-based support for improving patient medication management james j. cimino chief, laboratory...
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Computer-based Support for Improving Patient Medication Management
James J. CiminoChief, Laboratory for Informatics Development
National Institutes of Health Clinical Center
Senior Scientist, Lister Hill Center for Biomedical CommunicationsNational Library of Medicine
Informatics Grand RoundsDartmouth-Hitchcock Medical Center
May 16, 2008
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Challenges to Medication Management
• Lack of information about the patient– Patient’s condition– Patient’s co-morbidities– Medications the patient is supposed to take– Medications the patient is actually taking
• Access to medical knowledge– Knowing about availability of knowledge resources– Knowing how to use knowledge resources– Effort to use knowledge resources
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Solutions
• Medication reconciliation– Collect information from disparate sources– Present information to support decision making
• Infobuttons– Anticipate user’s information needs– Automate access to appropriate resources– Automate retrieval from these resources
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The Challenge of Medication Reconciliation
Stop
Stop
Stop
Stop
Go
StopGo
Stop
Go
?
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Many a Slip ‘Twixt the Cup and the Lip
Patient is Supposed to Take
Patient is not Supposed to Take
Patient is Taking
Reports
Taking
Doesn’t
Report Taking
Reports
Taking
Doesn’t
Report Taking
Patient is not Taking
Reports
Taking
Doesn’t
Report Taking
Reports
Taking
Doesn’t
Report Taking
Stop
Stop
Stop
Stop
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Problems and Solutions
• Errors due to:– Not starting medications the patient should be taking– Starting medications the patient shouldn’t be taking– Not communication starts/stops to next caregiver– Not communicating changes to patients
• Beers, et al. J Am Geriatric Society 1990:– 83% of hospital admission histories missed one or
more medications– 46% missed three or more
• Problems occur at all transitions in care:– “Continue all outpatient medications”
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Electronic Health Records to the Rescue!
Stop
Stop
Stop
Stop
Go
StopGo
Stop
Go
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Computer Assisted Medication Reconciliation
• Poon et al.: JAMIA 2006:– Preadmission Medication List– Grouped medications by generic names
• Text sources
• Multiple sources
• Substitutions might occur
• Confusing chronology
• Information overload!
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Our Approach to Medication Reconciliation
• Multiple inpatient and outpatient systems
• Natural language processing to get codes
• Medical knowledge base to group codes
• Chronological presentation
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Methods• All recent admissions for one physician (JJC)
• Multiple inpatient and outpatient resources
• Carol Friedman’s Medical Language Extraction and Encoding (MedLEE)
• US National Library of Medicine’s Unified Medical Language System (UMLS)
• Columbia’s Medical Entities Dictionary (MED)
• American Hospital Formulary Service (AHFS) classification
• Evaluation of ability to capture, code and organize
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1. Prior Clinic Note2. Prior Outpatient Medications3. Admission Note4. Admission Note Plan5. Admission Orders6. Admission Pharmacy Orders7. Active Orders at Discharge8. Discharge Pharmacy Orders9. Discharge Instructions10. Discharge Plan11. Clinic Note after Discharge12. Outpatient Medications after Discharge
Data SourcesData Source System Data Type
NarrativeCoded
NarrativeNarrative
CodedCodedCodedCoded
NarrativeNarrativeNarrative
Coded
WebCISWebCISWebCISWebCISEclipsysWebCISEclipsysWebCISEclipsysWebCISWebCISWebCIS
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Results
• 70 patient records reviewed
• 30 hospitalizations identified
• 17 met inclusion criteria
• MedLEE found 623/653 (95.4%) medications
• Total of 1533 medications (444 unique) in MED
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Medications by Source
Data Source Meds Recordswith Data
Meds perPatient
Prior Clinic Note * 157 17 9.2Prior Outpatient Medications 211 13 16.2Admission Note * 102 14 7.3Admission Note Plan * 41 12 3.4Admission Orders 88 8 11.0
Admission Pharmacy Orders 152 14 10.9
Active Orders at Discharge 93 8 11.6
Discharge Pharmacy Orders 171 14 12.2
Discharge Instructions * 60 7 8.6Discharge Plan * 123 16 7.7
Clinic Note After Discharge * 140 16 8.8
Outpatient Medications after Discharge 225 13 17.3
* Narrative text
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169 UMLS (93%)
8 Other Meds (4%):
INH, MVI, asa, Os-Cal,
darvocet, hctz, niacin, toprol
4 Non-Med (3%): cream, antiinflam-
matory, lotion, lozenge, po
MedLEE Terms Found30 Non-Med,
(5%)48 Other Meds (8%)
545 UMLS (87%)
Mapped to UMLS
MED Terms
442 AHFS (99.5%)
2 non-AHFS (0.5%): oxygen,
medication
16 non-AHFS (1.0%)
1517 AHFS (99.0%)
Mapped to AHFS
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Patient #9201204:
Anticoag-ulants
240400: Cardiac Drugs
240800: Hypoten-
sive Agents
280000: CNS
Agents
281604: Antidep-ressants
Prior Clinic Note coumadin verapamil cozaar cymbalta
Prior Outpatient Medications
Coumadin 5 mg Tab
Verapamil180 mg
Extended Release Tablet
LosartanPotassium
100 mgTablet
Pregabalin 50mg Capsule
Admission Note coumadin verapamil cozaar cymbalta
Admission Note Plan
coumadin
Admission Orders
Warfarin Sodium Oral 10
MG
Verapamil SR Oral 240 MG
Losartan Oral 50 MG
Admission Pharmacy Orders
WARFARIN TAB 5 MG
10 MILLIGRA
M
VERAPAMIL SR TAB 240 MG
LOSARTAN POTAS-
SIUM TAB 50
MG
Transition from Outpatient to Inpatient
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Patient #9201204:
Anticoag-ulants
240400: Cardiac Drugs
240800: Hypoten-
sive Agents
280000: CNS
Agents
281604: Antidep-ressants
Admission Pharmacy Orders
WARFARINTAB 5 MG 10MILLIGRAM
VERAPAMILSR TAB 240
MG
LOSARTAN POTASSIUMTAB 50 MG
Active Orders at Discharge
Verapamil SR Oral 240 MG
Losartan Oral 50 MG
DischargePharmacy Orders
VERAPAMIL SR TAB 240 MG
LOSARTANPOTASSIUMTAB 50 MG
DULOXET-INE CAP 20 MG
Discharge Instructions
cymbalta
Discharge Plan cymbalta
Clinic Note After Discharge
coumadin verapamil cymbalta
OutpatientMedications after
Discharge
Coumadin 5mg Tab
Verapamil180 mg Exte-
ndedRelease Tab
LosartanPotassium 100
mg Tablet
Pregabalin50mg
Capsule
Transition from Outpatient to Inpatient
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Discussion• Data from multiple coded and narrative sources
can be coded automatically and merged into a single form
• The UMLS and MED are both needed for coding to a single terminology (AHFS)
• Further work on MedLEE and the MED are needed
• Drugs tend to group into one per class; allows for change from one generic to another
• Chronology by drug class can highlight changes in medication plans
• Changes can be intended or unintended, but should not be ignored
• The next step is medication reconciliation
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http://www.dbmi.columbia.edu/cimino/medrec/
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Next Step: High-Quality Decision Making
• Providing patient information evokes additional information needs
• These needs are stereotypical
• Resources exist to address these needs
• If we can predict the needs, we can provide links
• Information available in the context can be used to target the resources
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Health Knowledge for Decision Support
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Health Knowledge for Decision Support
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Infobuttons
Anticipate Need and Provide Queries
i
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Information Needs of CIS Users
• Common tasks may have common needs
• System knows:– Who the user is– Who the patient is– What the user is doing– What information the user is looking at
• We can predict the specific need
• User is sitting at a computer!
• We can automate information retrieval
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First Attempt: The Medline Button
• CIS on mainframe
• BRS/Colleague (Medline) on same mainframe
• Get them to talk to each other
• Search using diagnoses and procedures
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First Attempt: The Medline Button
• CIS on mainframe
• BRS/Colleague (Medline) on same mainframe
• Get them to talk to each other
• Search using diagnoses and procedures• Technical success
• Practical failure
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Education at the Moment of Need
i
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Education at the Moment of Need
UnderstandInformation
Needs
1i
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Education at the Moment of Need
Get InformationFrom EMR
UnderstandInformation
Needs
1
2
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Education at the Moment of Need
Get InformationFrom EMR
ResourceSelection
UnderstandInformation
Needs
1
2
3
i
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Education at the Moment of Need
Get InformationFrom EMR
ResourceSelection
ResourceTerminology
UnderstandInformation
Needs
1
24
3
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Education at the Moment of Need
Get InformationFrom EMR
ResourceSelection
ResourceTerminology
UnderstandInformation
Needs
AutomatedTranslation
1
254
3
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Education at the Moment of Need
Get InformationFrom EMR
ResourceSelection
ResourceTerminology
QueryingUnderstandInformation
Needs
AutomatedTranslation
1
254
6
3
i
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Education at the Moment of Need
Get InformationFrom EMR
ResourceSelection
ResourceTerminology
Querying
Presentation
UnderstandInformation
Needs
AutomatedTranslation
1
254
6
3
7
i
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Infobuttons vs. Infobutton Manager
Pageof
Hyperlinks
InfobuttonClinical System Resourc
e
InfobuttonManager
ContextQuery
KnowledgeBase
s
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Usage in Lab Contexts
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HR-LabDetail
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Usage in In-Patient Drug Contexts
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HR-InPatientDrugs
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Usage in Diagnosis Context
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HR-Diagnoses
IM-Diagnoses
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Usage in Lab Order Entry Context
0
20
40
60
80
100
120
140
Aug-0
2
Nov-0
2
Feb-0
3
May
-03
Aug-0
3
Nov-0
3
Feb-0
4
May
-04
Aug-0
4
Nov-0
4
Feb-0
5
May
-05
Aug-0
5
Nov-0
5
Feb-0
6
May
-06
Aug-0
6
Nov-0
6
Feb-0
7
May
-07
Aug-0
7
HR-LabOrder
IM-LabOrder
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Usage in InPat Drug Order Entry
0
50
100
150
200
250
300
350
Aug
-02
Nov
-02
Feb
-03
May
-03
Aug
-03
Nov
-03
Feb
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May
-04
Aug
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Nov
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Aug
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Nov
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HR-DrugOrder
IM-DrugOrder
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The Coumadin Story
• Chair of Medicine wants link to Coumadin protocol
• First, I have to find the guidelines
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The Coumadin Story
• Chair of Medicine wants link to Coumadin protocol
• First, I have to find the guidelines
• Then I have to add the question to the IM table
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The Coumadin Story
• Chair of Medicine wants link to Coumadin protocol• First, I have to find the guidelines• Then I have to add the question to the IM table
• Finally, I link the question to the context
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The Coumadin Story
• Chair of Medicine wants link to Coumadin protocol• First, I have to find the guidelines• Then I have to add the question to the IM table• Finally, I link the question to the context
• Voilá!
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New York Presbyterian Hospital (Eclipsys)
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NY Office of Mental Health (Psykes)
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NY Office of Mental Health (Psykes)
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Regenstrief Medical Record System
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Cryststal Run Healthcare (NextGen)
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AMIA 2007 Demo Participants
• Health care & academic institutions– Intermountain Healthcare, Columbia University,
Partners Healthcare
• Content providers– Wolters Kluwer Health, ACP, Micromedex,
UpToDate, Ebsco, Lexicomp
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Institution-Specific Requirements
• What are the users’ information needs?
• In what contexts do those needs arise?
• What resources will resolve the needs?
• How do we deal with terminology?
• How can the Infobutton Manager be integrated into the clinical information system?
• The institution’s librarian is the best person to resolve most of these issues
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Infobutton ManagerMaintenance Tool
Functions:Browse
AddUpdateDelete
Clinician
Infobutton Manager
TranslationTable
TermTranslation
ContextTable
ContextMatching
InfobuttonTable
QueryConstruction
Page ofLinks
SystemMaintainer
Institution Customization Tasks
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Librarian Infobutton Tailoring Environrment (LITE)
• Specify user contexts
• Identify terminology in each context
• Information needs in each context
• Resources for resolving information needs
• Automating translation and querying
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Infobutton ManagerMaintenance Tool
Functions:Browse
AddUpdateDelete
Clinician
Infobutton Manager
TranslationTable
TermTranslation
ContextTable
ContextMatching
InfobuttonTable
QueryConstruction
Page ofLinks
SystemMaintainer
Institution Customization Tasks
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LITE TasksLibrarian Infobutton
Tailoring Environment(LITE)
InfobuttonManagerLog File
LITELog File
LITE Auditing
LITE Monitoring
Infobutton ManagerMonitoring
InstitutionLibrarian
ContextDefinition
ResourceUtilization
TerminologySpecification
QuestionConstruction
ResourceSelection
Clinician
Infobutton Manager
TranslationTable
TermTranslation
ContextTable
ContextMatching
InfobuttonTable
QueryConstruction
Page ofLinks
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LITE Research Plan
• Conduct community assessment
• Refine LITE features
• Establish forum for feedback from librarians
• Develop LITE in an iterative manner
• Develop a user manual and tutorial
• Evaluate usability of LITE by librarians
• Evaluate the use of LITE
• Disseminate the results of the project
• Promote the use of the IM and LITE
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Status Report
• Drupal site
• Community of users
• Clear through Institutional Review Board
• Enroll “subjects”
• Make each draft a forum topic
• Collect feedback
• Iterate
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www.infobuttons.org
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lite.dbmi.columbia.edu
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Conclusions• Diverse medication data can be automatically
integrated
• Organizing data by time and drug class can highlight possible errors
• Infobuttons can anticipate and resolve clinicians’ information needs
• Institution-specific tailoring is required
• International standard will stimulate wider adoption
• Librarian Infobutton Tailoring Environment will put the Infobutton Manager on autopilot
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Acknowledgments
• Medication Reconcilliation– Carol Friedman for use of MedLEE– Jianhua Li for programming– Tiffani Bright for background research– US National Library of Medicine
• Infobuttons– Jianhua Li for programming– Many student contributors– Guilherme Del Fiol– Noemie Elhadad– National Library of Medicine