Question
Acute aortic regurgitation occurs in:
The correct answer is
Infective endocarditis
Causes of Acute Aortic Regurgitation
Acute aortic regurgitation (AR) is a serious condition where the aortic valve doesn't close properly, allowing blood to leak back into the left ventricle from the aorta.
- Infective Endocarditis: This is a primary cause of acute aortic regurgitation. Infection damages the leaflets of the aortic valve, causing rapid destruction and severe regurgitation. The infection can directly destroy valve tissue or lead to large vegetations that impede valve closure.
- Other conditions like Ankylosing spondylitis, Marfan's syndrome, and Rheumatoid arthritis are more commonly associated with chronic aortic regurgitation due to gradual changes in the valve or aorta, rather than acute destruction.
Therefore, infective endocarditis is a direct and common cause of acute aortic regurgitation.
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Important Questions from Bacterial Infections
Which of the following are major criteria under the Jones Criteria for Acute Rheumatic Fever?
1. Chorea
2. Erythema Marginatum
3. Subcutaneous Nodules
4. Polyarthralgia
Select the correct answer using the code given below:
- Whipple's disease is characterized by the infiltration of small intestinal mucosa by 'foamy' macrophages. Which one of the following histological stains is characteristically used to stain them?
- A young male presented with recent onset urethral discharge and dysuria. On examination, the discharge was profuse and purulent. Microscopy of smears from the discharge revealed Gram-negative diplococci. What is the likely diagnosis?
- Cat-scratch disease is caused by infection of which of the following organisms?
Which of the following drugs is/are useful in the treatment of Listeria monocytogenes infection?
1. Ceftriaxone
2. Gentamicin
3. Ampicillin
4. Sulfamethoxazole
Select the correct answer using the code given below.
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