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Diseases of the circulatory system
문제
The heart demonstrates ______ filling during cardiac catheterization, with rapid early filling followed by an abrupt plateau.
1
restrictive
✓ 정답
2
constrictive
3
impaired
4
normal
5
enhanced
해설
Restrictive filling pattern on cardiac catheterization shows rapid early diastolic filling followed by an abrupt plateau (square root sign). This pattern is characteristic of restrictive cardiomyopathy or severe diastolic dysfunction.
같은 주제 다음 문제 The patient's EKG shows significant ST ______ in leads V2 through V4, suggesting acute ant…
임상 시나리오 Cardiac Catheterization and Diastolic Patterns:
1. Restrictive Pattern:
- Rapid early diastolic filling
- Abrupt plateau formation
- Square root sign appearance
- Elevated end-diastolic pressure
- Associated with restrictive cardiomyopathy
2. Hemodynamic Parameters:
- Increased right atrial pressure
- Elevated pulmonary capillary wedge pressure
- Dip and plateau pattern
- Decreased cardiac output
- Preserved ejection fraction
3. Diagnostic Features:
- Rapid y descent
- Elevated filling pressures
- Decreased compliance
- Ventricular interdependence
- Preserved systolic function
4. Clinical Conditions:
- Amyloidosis
- Sarcoidosis
- Hemochromatosis
- Endomyocardial fibrosis
- Radiation-induced cardiomyopathy
5. Pressure Measurements:
- Right ventricular pressure
- Left ventricular pressure
- Pulmonary artery pressure
- Right atrial pressure
- Left atrial pressure
핵심 개념
restrictive — A condition where the heart muscle becomes rigid and less elastic, limiting its ability to fill properly during diastole
constrictive — A condition characterized by the restriction of heart filling due to a rigid, thickened pericardium
impaired — Reduced or weakened function, indicating compromised cardiac filling capacity
normal — Regular physiological pattern of cardiac filling without any abnormalities
enhanced — Increased or improved cardiac filling beyond normal physiological levels
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