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A Case Study of Computer Systems
The Belfast City Hospital Nephrology unit
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What is information?
Defined as “that which helps decision making”
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Patient Information consists of two components
Clinical Data Clinical Knowledge
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Clinical Data
Presenting Symptoms and signs Laboratory results
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Clinical Knowledge
General Facts about diseases How to interpret lab results How to choose therapies
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Question
How are Clinical Data and knowledge managed within the Nephrology unit at BCH?
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Roles of information technology
Shifts away from conventional paper medical records towards computerised systems.
Many problems are associated with the use of paper records
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Problems with Paper Records Accessibility of Info ( necessary to search
through numerous letters, reports and notes before finding answers).
Missing records Bulk of paper storage Incompleteness Cost Confidentiality (paper notes easily photo
copied).
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Use of computers in Nephrology Unique coding and classification for
presenting complaints Computerised discharge system E-mail for communication - I.e.. arranging
meetings, forwarding test results and patient information.
Clinical programs Office programs
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The Clinical Programs
The Registrars Discharge program Medline “Up to Date” Online Lab Results Online X-Ray Results
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Patient Discharge program
This is a program used by the JHO’s and Registrars to discharge a patient from the Nephrology department.
Although it is configured slightly differently for Nephrology the same program is used by all of the departments of the hospital
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Features The program uses ICD-10 coding All 27,000 codes are stored on the
computer. The 100 most common diseases in
Nephrology appear in a scroll down list. JHO’s use same system as registrars Registrars can verify JHO’s diagnosis
using the verify manager.
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Details entered into the program include….
Standard patient details The Admission diagnosis The procedure done to the patient Any additional note to be forwarded to
the GP. Drugs givenThe Registrar checks what the JHO has entered and a Discharge note is generated for the GP and patient
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DischargeJHO Performs discharge
Registrar verifies discharge
Info passed onto coding office GP discharge letter produced
Discharge letter produced for patient
Patient Discharged
(Currently a paper copy)
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General Opinion
The program is good. Before this system paper discharge notes were used.
Registrars find it easy to check a JHO’s diagnosis.
Generally JHO’s do actually use the system though people still write discharge notes by hand when in a rush
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Medline “Up to Date”
A CD-ROM which allows doctors to perform “Evidence Based medicine”
The CD is updated every few months by the supplier.
It contains the most up to date forms of treatment for patients.
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What Does it contain? Text book information Articles Treatment recommendations Pictures ( e.g.. ECG’s) Sound files ( e.g.. Heart sounds) Movies / animation's Microscopic slides Slides for lectures
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Features
Other information can be accessed by clicking on certain keywords in the article ( like the Internet).
The reference lists contain complete abstracts.
Pictures and other media are easily exported for lecture preparation.
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Features
Medline is also available over the Internet and provides access to various medical journals.
Internet site contains a very powerful search engine.
Internet links are available References are easily printed out or
saved to disk.
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Opinions
“ The program acts like an interactive text book”
“It’s Very handy for research or just if you want to leave one of your junior doctors to do a lecture for you”
Everyone spoken to found the multimedia features of use in diagnosis.
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Online Lab and X-Ray Access
The Lab program is called Master Lab It is a menu driven interface. The X-ray program is known as BCH
Rad
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Features of Master Lab
Lab times for the program are quicker - results can be obtained the same day rather than the proceeding day.
It stores a history of previous test results for a patient - which is stored in easy to use, one-key menus.
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Features of BCH Rad
Currently the X-ray results are limited to text format. That is you only get the radiologists report on the X-ray.
Plans are underway to use digital technology to store X-rays on the computer as well.
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Other Non-Clinical Programs
E-mail Microsoft PowerPoint Microsoft Excel Speech to Text
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Most consultants and registrars have E-mail on their own PC’s.
The PC’s are permanently connected to the Internet.
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Uses of e-mail
General letters / Personal messages Attachments of patient data files Schedules of meetings Patient appointments Although it is currently not occurring
there are plans for patient results to be sent to GP’s Directly over the E-mail.
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PowerPoint
A tool used more frequently by medical lecturers in preparing lectures for medical students.
Images are easily imported from Medline.
Files can be transferred over the E-mail to junior doctors if they need to take the lectures.
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Excel
During our visit the consultant received and Excel file attachment over the E-mail.
Excel is often the form that dialysis results and blood tests for patients on the ward are stored on.
It enables easy printing of specific patients details.
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Speech to Text
Two versions on different computers Older version (On Apple) - programmed
to recognise medical terms. Speech has to be slow and staccato. Newer version - able to recognise fluid
speech but not medical terms.
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Opinion of Speech to Text
A method preferred by some of the older doctors who are less proficient at typing.
It will never replace high speed typing but is a useful tool for generating large quantities of text.
Takes a relatively long time to train to recognise your voice.
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Security of Data
In response to growing use of computer technology, the BMA has developed nine principles of data security
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BMA Confidentiality Principles
Access control Record opening Control Consent and notification Persistence Attribution Information flow
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BMA Confidentiality Principles
Aggregation control Trusted Computing base
Strict adherence to those principles prevents breach of patient confidentiality
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Security problems on Computers
Problems with access to all records by all users
Password sharing Terminals left permanently on in wards Information may be easily printed out (
though records may be made of this)
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Security aspects
Patient information can only be accessed using passwords - these are needed to log on and access each individual program.
Each staff member has a different password and different access levels.
Only staff named on the access control list may view patient files.
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Summary Computer systems in Medicine are… Time savers Secure sites of information storage Sites for research and stores of text
book information Ways of communicating Convenient - though not always
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Sometimes they can just be a Pain!