The heart sounds demonstrate a ______ rhythm, with regular v… | 마이메르시 MyMerci
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Diseases of the circulatory system
문제

The heart sounds demonstrate a ______ rhythm, with regular variation in intensity during respiration, typical of cardiac tamponade.

해설
Pulsus paradoxus, a regular variation in pulse intensity with respiration where systolic pressure falls more than 10 mmHg during inspiration, is a classic finding in cardiac tamponade. This represents enhanced ventricular interdependence due to pericardial compression.
같은 주제 다음 문제The patient's EKG shows significant ST ______ in leads V2 through V4, suggesting acute ant…

임상 시나리오

Key Points about Cardiac Tamponade:

1. Definition
- Compression of heart by fluid in pericardial space
- Life-threatening condition requiring immediate treatment

2. Clinical Features
- Beck's triad: hypotension, JVD, muffled heart sounds
- Pulsus paradoxus >10 mmHg
- Tachycardia
- Electrical alternans on ECG

3. Hemodynamic Changes
- Decreased cardiac output
- Increased central venous pressure
- Equalization of diastolic pressures

4. Common Causes
- Pericardial effusion
- Trauma
- Malignancy
- Post-cardiac surgery
- Infection

5. Diagnostic Methods
- Echocardiography
- Cardiac CT
- Right heart catheterization
- Chest X-ray

6. Treatment Options
- Pericardiocentesis
- Surgical pericardiectomy
- Treatment of underlying cause
- Volume resuscitation

핵심 개념

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