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The UKHVR web app

Graeme Hickey
October 03, 2013

The UKHVR web app

Presented at the British Heart Valve Society annual meeting, 2013

Graeme Hickey

October 03, 2013


    Graeme Hickey
    Manchester University
    with Joel Dunning & Ben Bridgewater
    [email protected]

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  2. Background
    • UK Heart Valve Registry initiated in 1986
    • Funding withdrawn in 2004
    • National Adult Cardiac Surgery Adult
    Cardiac Audit registry has been collecting
    clinical data including implant data

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  3. Initial idea
    • What are the short-term failure rates of
    prosthetic valves?
    • Are any rates significant after adjustment for
    other variables?
    (PI: Mr Joel Dunning*, Middlesborough)
    *Email: [email protected]

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  4. Lessons learned

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  5. Going one step further
    • How does mid-term survival differ between
    • Are patient characteristics similar?
    • What are the market share trends?... by
    bovine?... by porcine?

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  6. I think a focus on transparency isn’t just a
    philosophical or ideological gimmick; it is a
    necessary progression. I see it this way. The
    future of healthcare is going to be driven by three
    forces: the first is economics; the second is public
    expectations; and the third is technology. [...]
    It is about putting more data and raw data out
    into the public domain for others to process and
    Sir Professor Bruce Keogh
    NHS Medical Director
    7 July 2011


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  7. Why has this not happened
    What some believe national registry data looks like

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  8. Data wrangling
    • All AVRs between April 1998 - March 2012
    • Mapped >8000 entries to ~100 valves
    • 160 other variables preprocessed
    • Exclude: missing implant data (11.2%); non-
    valve implants (0.6%); unmatched or
    overmatched data (4.2%)
    • Total of 87,423 AVRs

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  9. The UKHVR Web App
    Compliant with Chrome, Safari, Internet
    Explorer 10, iOS (iPad)
    Built with:

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  10. Registry growth
    1998 2000 2002 2004 2006 2008 2010
    Number of recorded AVRs
    Financial year beginning

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  11. Summary
    • The data exists and is useable (and growing!)
    • Powerful front-ends can inform all
    • Transparency drives improvements in quality

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  12. Availability
    • Still in development
    • Requires work: MVRs, rings, failure module,
    pathology + haemodynamic data
    • Requires data validation
    • Requires joint SCTS and NICOR approval

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  13. Questions?
    Coming soon to iOS & web
    Available now: bluebook.scts.org
    Some other apps
    you might also be
    interested in...

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  14. In case app fails...

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