Pediatricsbasic
Systolic function in RCM is necessarily severely impaired from the earliest stage.
Answer
false
Explanation
The slides state that systolic function **may be maintained until later** in RCM. The principal early abnormality is impaired diastolic filling due to poor compliance. Thus, preserved systolic function does not exclude significant restrictive physiology. **Key takeaway:** RCM can cause severe filling impairment before systolic function declines.\n\n**Glossary:** **Diastolic**: Relating to ventricular relaxation and filling. **Systolic**: Relating to ventricular contraction.
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