Pediatricsbasic
Which aetiological category is used when a cause has not been identified?
Answer
Idiopathic
Explanation
**Idiopathic** is the category used when no cause has been identified. Secondary cardiomyopathy is associated with another disease or exposure, while obstructive and valvular describe other characteristics or disease contexts rather than this aetiological label. **Key takeaway:** “Idiopathic” signals an unknown cause, not a specific structural pattern.\n\n**Glossary:** **Idiopathic**: Arising without an identified cause.
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