dr. david mccallie · 2014-03-31 · cloud-based sepsis iterative, “crowd-sourced” refinement....
TRANSCRIPT
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Dr. David McCallie
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The Evolution of Clinical Decision Support
David McCallie Jr. MD
Cerner Corp.
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Agenda
General Observations
Some Examples
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Evolution of CDS?
Johanna Pung for Wikimedia Deutschland (Wikimedia Deutschland) CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
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Broad Spectrum of CDS
Identify
Sepsis Recognition
Propose
Manage
Intervene
Analyze
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User Experience
Reactive -> interrupt
Interactive -> assist
Ambient -> guide
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Knowledge Representation
Scripts
Rules
Algorithms & agents
“Big data” & learning
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Knowledge Source
Locally authored
Vendor packages
Cloud-based services
Third-party via imported content
Third-party via interactive plugins
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Workflow Integration
Foreground (triggers)
Background (event monitors)
Network (multi-agent monitors)
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Data and Access
Ad hoc codes + “curly braces” (Arden)
Value sets + vMR + ECA rules? (HeD)
Clinical Element Models + FHIR?
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Decision Support Goals
Avoid harm
Guide therapy (Tx)
Guide Dx and Tx
Prevent Dx
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Some (random) examples…
Johanna Pung for Wikimedia Deutschland (Wikimedia Deutschland) CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
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Traditional ADE Interaction Alert
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eRx – Guidance + Pre-screened choices
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Reduction in “nuisance” ADE alerts
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Interactive CDS Multi-step VTE Advisor
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Contextual, ambient, actionable guidance
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Contextual, ambient, actionable guidance
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Cloud-based CDS Continuous Sepsis Agent
EHR Data
Alert Routing
Concept Extraction
PowerChart
Data Crawler
Population EMR
Sepsis Agent
HR Resp. Temp BP Labs CNS Status Etc.
Alert Routed to Sepsis Team (and Dashboard)
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Cloud-based Sepsis Iterative, “crowd-sourced” Refinement
Version 14
Operating Characteristics • Sensitivity 68-91% • Specificity 91-97.6% • PPV up to 68%
Real-time Monitoring • Over 160 facilities • ~40K persons per hour • ~800K lives per day
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All Cause Readmission Prediction Model
* Denotes past and present clinical data
Models C-Stat
ACC Model 0.78
Previous Model 0.69
Average models reviewed in JAMA1
0.66
Yale NHHSC/CORE for CMS2 0.66
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Clinical Element Models & FHIR Data Profiles
mHealth
SOA Orchestration
Web Apps
REST API
SMART on FHIR® – Open Platform Architecture
OAuth
http://smartplatforms.org/smart-on-fhir/
Health IT Systems
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FHIR Resource “Observation” <Observation xmlns="http://hl7.org/fhir"> <name><!-- 1..1 CodeableConcept Type of observation (code / type) --></name> <value[x]><!-- 0..1 Quantity|CodeableConcept|Attachment|Ratio|Period| SampledData|string Actual result --></value[x]> <interpretation><!-- 0..1 CodeableConcept High, low, normal, etc. --></interpretation> <comments value="[string]"/><!-- 0..1 Comments about result --> <applies[x]><!-- 0..1 dateTime|Period Physiologically Relevant time/time-period for observation --></applies[x]> <issued value="[instant]"/><!-- 0..1 Date/Time this was made available --> <status value="[code]"/><!-- 1..1 registered | preliminary | final | amended + --> <reliability value="[code]"/><!-- 1..1 ok | ongoing | early | calibrating | error <bodySite><!-- 0..1 CodeableConcept Observed body part --></bodySite> <method><!-- 0..1 CodeableConcept How it was done --></method> <identifier><!-- 0..1 Identifier Unique Id for this particular observation --></identifier> <subject><!-- 0..1 Resource(Patient|Group|Device|Location) Who and/or what --></subject> <specimen><!-- 0..1 Resource(Specimen) Specimen used for this observation --></specimen> <performer><!-- 0..* Resource(Practitioner|Device|Organization) Who did it --></performer> <referenceRange> <!-- 0..* Provides guide for interpretation --> <low><!-- ?? 0..1 Quantity Low Range, if relevant --></low> <high><!-- ?? 0..1 Quantity High Range, if relevant --></high> <meaning><!-- 0..1 CodeableConcept Indicates the meaning/use of this range --></meaning> <age><!-- 0..1 Range Applicable age range, if relevant --></age> </referenceRange> </Observation>
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FHIR Profile for “Blood pressure”
MessageHeader event: Coding data: Any(0..*) -> List(1..1)
List-Bloodpressure subject: Patient|..|.. 0..1 -> Patient (1..1) (bundled | ref) Entry item: Observ. (1..1) (bundled)
Entry item: Observ. (1..1) (bundled)
Observation-Systolic name: “Systolic” value: Quantity (value.units “mmHg”)
Observation-Diastolic name: “Diastolic” value: Quantity (value.units “mmHg”)
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SMART on FHIR – Pluggable CDS (Intermountain Healthcare)
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SMART on FHIR – Pluggable CDS (VisualDx)
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SMART on FHIR – Pluggable CDS (VisualDx)
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Futures for CDS
Ambient > interruptive Guidance > interdiction Cloud-based > local Big learning > Big data Community/population data > EHR local data Algorithmic, multi-agent > scripts & rules Multi-disease > single-disease Pluggable “apps” > imported rules SMART + FHIR + Element Models > DSS + vMR ?
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Thank You!
Johanna Pung for Wikimedia Deutschland (Wikimedia Deutschland) CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons