The patient's heart demonstrates ______ dysfunction, where t… | 마이메르시 MyMerci
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Diseases of the circulatory system
문제

The patient's heart demonstrates ______ dysfunction, where the ventricle cannot relax properly during diastole.

해설
Diastolic dysfunction refers to the heart's inability to properly relax and fill with blood during the diastolic phase. This condition leads to impaired ventricular filling despite normal contractile function, often resulting in heart failure with preserved ejection fraction.
같은 주제 다음 문제The patient's EKG shows significant ST ______ in leads V2 through V4, suggesting acute ant…

임상 시나리오

• Diastolic dysfunction: Impaired relaxation of heart muscle during filling phase
• Key characteristics:
- Stiff/rigid ventricle walls
- Decreased compliance
- Elevated filling pressures
- Normal ejection fraction

• Common causes:
- Hypertension
- Aging
- Left ventricular hypertrophy
- Diabetes
- Coronary artery disease

• Clinical manifestations:
- Dyspnea
- Exercise intolerance
- Pulmonary congestion
- Peripheral edema

• Diagnostic methods:
- Echocardiography
- Doppler imaging
- E/A ratio assessment
- Tissue Doppler
- B-type natriuretic peptide levels

• Treatment approaches:
- Blood pressure control
- Rate control
- Diuretics
- ACE inhibitors
- Beta blockers

핵심 개념

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