MyMerci › 기출문제 › Diseases of the circulatory system
Diseases of the circulatory system
문제
The patient's heart shows a characteristic ______ pattern during diastole, with rapid early filling followed by rapid deceleration.
1
restrictive
✓ 정답
2
normal
3
impaired
4
delayed
5
enhanced
해설
A restrictive filling pattern during diastole is characterized by rapid early filling followed by rapid deceleration, creating a "square root" sign. This pattern is seen in restrictive cardiomyopathy and indicates severe diastolic dysfunction due to reduced ventricular compliance.
같은 주제 다음 문제 The patient's EKG shows significant ST ______ in leads V2 through V4, suggesting acute ant… 임상 시나리오 Restrictive Diastolic Filling Pattern:
- E/A ratio > 2 indicates restrictive pattern
- Rapid early filling (E wave) with increased velocity
- Shortened deceleration time (DT < 160ms)
- Reduced A wave amplitude
- Associated with stiff ventricles
- Common in:
* Restrictive cardiomyopathy
* Constrictive pericarditis
* Advanced diastolic dysfunction
* Cardiac amyloidosis
- Doppler findings:
* High E velocity (>1.2 m/s)
* Low A velocity
* Short isovolumic relaxation time
- Poor prognosis indicator
- May require cardiac transplantation
- Reversible with treatment in some cases
- Diagnostic criteria:
* E/A ratio >2
* DT
핵심 개념
restrictive — A pattern characterized by limited or constrained movement or flow, typically due to stiffness or reduced compliance of cardiac tissuenormal — The typical or standard pattern of cardiac filling without any pathological changesimpaired — A condition where the function or ability is weakened or damaged, resulting in suboptimal performancedelayed — A pattern showing a prolonged or late onset of activity compared to the expected timingenhanced — An increased or improved pattern of activity beyond the normal range or expectation
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