Difference between revisions of "MEDITECH Surveillance Rules Engine"

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In the example above, we are looking for a delta change. If the patient was one of the old values: Alert, Awake, Follows Commands and that changes to Drowsy, Lethargic, or Disoriented then we want to trigger a flag. This fact could be used on its own OR in combination with other facts. Perhaps we only want to trigger a flag if the patients level of consciousness changes AND they have increasingly low urine output.<br><br>
 
In the example above, we are looking for a delta change. If the patient was one of the old values: Alert, Awake, Follows Commands and that changes to Drowsy, Lethargic, or Disoriented then we want to trigger a flag. This fact could be used on its own OR in combination with other facts. Perhaps we only want to trigger a flag if the patients level of consciousness changes AND they have increasingly low urine output.<br><br>
 
'''''Fun Fact:'''  Greek Letters are not just for frats! They can be found in mathematics, finance, science and engineering. The Delta symbol represents a finite change (math), a sensitivity to price (finance), heat (chemistry) and the degree of freedom in two pooled populations (statistics). It’s all Greek to me though!''
 
'''''Fun Fact:'''  Greek Letters are not just for frats! They can be found in mathematics, finance, science and engineering. The Delta symbol represents a finite change (math), a sensitivity to price (finance), heat (chemistry) and the degree of freedom in two pooled populations (statistics). It’s all Greek to me though!''
Once we have built our facts we can attach them to a Rule. In the next example we can see how multiple facts can be combined to make a rule.
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Once we have built our facts we can attach them to a Rule. In the next example we can see how multiple facts can be combined to make a rule.<br>
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[[File:MEDITECH Syndromic Surveillance Rules Engine.jpg|600px]]<br>
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On the main tab you can define what your rule will assess. Use the description tab to clarify the goal you want to achieve and list any queries that might be mapped in the rule.<br>
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[[File:MEDITECH Surveillance Rules Engine Rule Dictionary.jpg|600px]]<br>

Revision as of 18:37, 22 August 2016

In MEDITECH 6.1, the Surveillance dictionaries are housed under Quality Management. Both Quality and Clinical staff will use these tools to monitor the patient population.
MEDITECH Syndromic Surveillance.jpg
The Surveillance Rules engine functions differently than the Rules Engine used to apply clinical decision support in ordering and documentation. These rules are comprised of “Facts”. Each fact is built out separately and then added to the rule it’s going to be applied to.

The design philosophy behind this was to avoid “reinventing the wheel”. For instance, a “Fact” could say, only look at the INPATIENT population or only assess if a problem wasn’t present on admission. Once facts are built they can be applied to many different rules that assess for different things.
MEDITECH Surveillance Rules Engine.jpg
The above fact will assess the patient for a change in the level of consciousness. This fact will most likely be used is assessing the patient population for a variety of conditions: UTI, Dementia, Stroke, VAP and Sepsis for example all use these criteria.
MEDITECH Surveillance Rules Engine Fact Dictionary.jpg
Depending on the Item, (field, query, lab value etc) operator and modifier you are assessing you will be presented with different options to further define your “fact”. If your modifier is just “Equals” than you will not have to define old and new values.

In the example above, we are looking for a delta change. If the patient was one of the old values: Alert, Awake, Follows Commands and that changes to Drowsy, Lethargic, or Disoriented then we want to trigger a flag. This fact could be used on its own OR in combination with other facts. Perhaps we only want to trigger a flag if the patients level of consciousness changes AND they have increasingly low urine output.

Fun Fact: Greek Letters are not just for frats! They can be found in mathematics, finance, science and engineering. The Delta symbol represents a finite change (math), a sensitivity to price (finance), heat (chemistry) and the degree of freedom in two pooled populations (statistics). It’s all Greek to me though! Once we have built our facts we can attach them to a Rule. In the next example we can see how multiple facts can be combined to make a rule.
MEDITECH Syndromic Surveillance Rules Engine.jpg
On the main tab you can define what your rule will assess. Use the description tab to clarify the goal you want to achieve and list any queries that might be mapped in the rule.
MEDITECH Surveillance Rules Engine Rule Dictionary.jpg