Pediatricsintermediate
Match each diagnostic finding observed during the evaluation of restrictive cardiomyopathy (RCM) with the corresponding diagnostic investigation: Findings: 1. Prominent P waves, ST depression, and T-wave inversions 2. Mild to moderate cardiomegaly 3. Biatrial enlargement, normal-to-small ventricular cavities, and abnormal diastolic filling 4. Pericardial thickening evaluated to rule out constrictive pericarditis Investigations: A. Electrocardiogram (ECG) B. Chest radiograph C. Echocardiogram D. Cardiac MRI
Answer
1-A, 2-B, 3-C, 4-D
Explanation
The slides associate **prominent P waves, ST depression, and T-wave inversion** with ECG; mild-to-moderate cardiomegaly with chest radiography; and enlarged atria, smaller ventricles, and abnormal Doppler filling with echocardiography. MRI can help identify a thickened pericardium when distinguishing RCM from constrictive pericarditis. **Key takeaway:** Imaging helps characterize restrictive physiology and assess a treatable mimic.\n\n**Glossary:** **Pericardium**: The sac surrounding the heart. **MRI**: Magnetic resonance imaging.
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