Definition
The status of evidence for a pre-existing clinical condition of heart failure, as represented by a code.
Components
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Data Element ConceptPerson—clinical evidence status (heart failure)
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Object ClassPerson
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PropertyClinical evidence status
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Value DomainClinical evidence status code N
Representation
This representation is based on the value domain for this data element, more information is available at " Clinical evidence status code N ".| Data Type | Number |
|---|---|
| Format | N |
| Maximum character length | 1 |
| Value | Meaning | Start Date | End Date | |
|---|---|---|---|---|
| Permissible Values | 1 | Objective evidence | ||
| 2 | No objective evidence |
Comments
Guide for use:
Objective evidence is coded where a patient has current symptoms of heart failure (typically breathlessness or fatigue), either at rest or during exercise and/or signs of pulmonary or peripheral congestion and objective evidence of cardiac dysfunction at rest. The diagnosis is derived from and substantiated by clinical documentation from testing according to current practices.
Comments:
The most widely available investigation for documenting left ventricular dysfunction is the transthoracic echocardiogram (TTE).
Other modalities include:
- transoesophageal echocardiography (TOE),
- radionuclide ventriculography (RVG),
- left ventriculogram (LVgram),
- magnetic resonance imaging (MRI).
In the absence of any adjunctive laboratory tests, evidence of supportive clinical signs of ventricular dysfunction. These include:
- third heart sound (S3),
- cardiomegaly,
- elevated jugular venous pressure (JVP),
- chest X-ray evidence of pulmonary congestion.