software development & starting out

Hi,

As someone who is an OpenEHR novice can you give me any tips - there
is so much information on the website it is difficult to know where to
start.

While I have yet to understand the full potential of the framework, I
would like to start with something simple.

Suppose a surgeon signs onto my system and wishes to create a new
progress note. On paper he may have written (swapping out the <>)

Hi,

I recommend that you start reading the Architecture Overview which gives a
overview of the ideas behind openEHR. You can find the current version at
the URL
http://svn.openehr.org/specification/TAGS/Release-1.0.1/publishing/architect
ure/overview.pdf .

If you would like to have a little “hands on” experience of archetypes is it
probably a good idea to download an archetype editor and play around with
it. The Linköping University Archetype Editor can be found at the URL
http://www.imt.liu.se/mi/ehr/tools/ and the Ocean Archetype editor at the
URL http://downloads.oceaninformatics.com/products/archetypeeditor/ .

  Greetings,
  Mikael Nyström
  Medical Informatics
  Department of Biomedical Engineering
  Linköping University
  Sweden

Good links - the architecture overview explains a lot. I downloaded
the editor and was looking to load the openEHR archetypes but the
following link fails to find a tar.gz file of all ADLs:

http://my.openehr.org/wsvn/knowledge/archetypes/?op=dl&rev=0&isdir=1

(I got the link from here:
http://svn.openehr.org/knowledge/archetypes/dev/index.html)

Question:

I noticed that the Archetype Editor has the ability to create
references to UMLS and Snowmed content - is that part of OpenEHR or is
it licensed separately?

thanks!

Greg

Boston, MA
http://www.patientos.org

Dear Greg Caulton

First, I think you must have a conceptual idea of “diagnostic-therapeutic cycle” (see http://www.mieur.nl/mihandbook/r_3_3/mmedia/f01_02l.gif )

And you think how to organize medical concepts into information model (openEHR’s information model. For basic understanding, refer to http://ontology.buffalo.edu/medo/HL7_2004.pdf) and how to use information model in real practical situation(openEHR’s archetype).

For your understanding, from information model’s viewpoint your example may be coded like this.

(it’s peudocode and not exactly match with openEHR. It’s just for your understanding )

<Composition (Admission Note)>

with admitted with Received ml/kg of volume resuscitation last night. Went to OR for placement, transferred to ICU for management after OR. a) Send b) for wound infection

But, in order to use this example in real situation, we need to define codes(terminology), ranges and other constraints for , , etc. This is the role of archetype.

I don’t know whether these are tips for you. But as Mikael Nystrom said, it is better that you start reading Architecture Overview and post any questions here

Best regards

Seung Jong Yu MD, MS

ggojang@gmail.com

Research Doctor
Medical Information Center Lab.
Seoul National University Hospital
28 Yongon-dong, Chongno-gu
Seoul 110-799, Korea
+82-2-2072-1978

2007/10/19, Greg Caulton <caultonpos@gmail.com>:

Thanks Seung,

Simple diagrams help me a lot :slight_smile: My background is computer science not medicine.

I am starting to get the picture, this is exciting stuff. In the past I have the best HIS systems organize clinical data into a hierarchy with little rhyme or reason, and custom to the client. Writing meaningful reports from flowsheet data was a disaster. This could really help a lot and gives me something to focus my implementation on rather than a custom domain model.

I am sure I will post many more questions.

thanks!

Greg

Boston, MA
http://www.patientos.org

Greg Caulton wrote:

Hi,

I noticed that the Archetype Editor has the ability to
create references to UMLS and Snowmed content - is that
part of OpenEHR or is it licensed separately?

openEHR is designed to be able to map to any terminology (and also possible
to use without any mappings at all).

Neither UMLS nor Snomed CT are included in openEHR and you need to have
separate licenses for them, but if you are based in the US I think it is a
minor problem. (Someone who knows details about the licenses in the US
better than me can maybe add some information. I am based in Sweden and are
only engaged in Snomed CT:s organization IHTSDO.)

(Snomed CT is an acronym for “Systematized Nomenclature of Medicine-Clinical
Terms”, so there is no “w” in the acronym.)

  Greetings,
  Mikael Nyström
  Medical Informatics
  Department of Biomedical Engineering
  Linköping University
  Sweden

Hi Greg

I am going to respond to how such a record might exist as openEHR data. You have gone for a very narrative form which may mean that you are thinking dictation - very hard to go from narrative to formally structured data (ask Peter Elkin at the Mayo). I have clipped the openEHR-EHR- from the lead of archetype names.

Greg Caulton wrote:

<age, sex> -  with <ESLD> admitted with [ADMISSION DIAGNOSIS as EVALUATION-problem-diagnosis]<dehydration>

The following would be noting findings in the record - we could use hyperlinks to those parts of the EHR and would not necessarily re-enter the data. It is an important feature of openEHR that a URL can be expressed to any data point in an EHR.

Received <n> ml/kg of volume resuscitation last night.  Went to OR for
<CVL> placement, transferred to ICU for management after OR.

a)  Send <bacterial infection> <if stooling>

a) - this is an INSTRUCTION-laboratory and the timing for action is if the person uses their bowels

b)  <Re|start> <med> for wound infection

b) - this is an ACTION-medication and re-commence of a standing instruction.

c)  Check weights

c) - this is an INSTRUCTION-observation to record the weight - timing ? daily

d) etc.
_____________________

How does OpenEHR come into play with this action -

Is this helpful.

(attachments)

OceanCsmall.png

Hi Sam,

Yes that helps - thanks!

Greg

Greg Caulton wrote:

Thanks Seung,

Simple diagrams help me a lot :slight_smile: My background is computer science
not medicine.

I am starting to get the picture, this is exciting stuff. In the past
I have the best HIS systems organize clinical data into a hierarchy
with little rhyme or reason, and custom to the client. Writing
meaningful reports from flowsheet data was a disaster. This could
really help a lot and gives me something to focus my implementation on
rather than a custom domain model.

I am sure I will post many more questions.

*in a similar vein, you may find this paper useful as well -
http://www.openehr.org/publications/health_IT/MedInfo2007-BealeHeard.pdf

- thomas beale