Other Cardiac Conditions

Question 1

Aetiology RF?

Answer 1

• susceptible person (HLA class II variant)

- pharyngeal infection with GAS

Question 2

Clinical features of RF?

Answer 2

• age (5-15)
• 2-3 weeks post infection
• Jones Criteria

Question 3

Jones Criteria?

Answer 3

2 major/ 1 major + 2 minor and evidence of strep infection ( do throat swap and ASOT titre)
Major
- Carditis (70%)
- endocarditis: murmur usually of mitral or aortic origin
- pericarditis: pericardial friction rub if effusion develops rub disappears
- myocarditis: increased cardio thoracic ratio, dyskinetic/diffuse apex, resting tachycardia
- pancarditis: often CCF
- subcutaneous nodules: non-tender mall mobile nodules over extensor surfaces
- erythema marginatum: transient circular rash mostly trunks and limbs but never face
- Sydenham chorea (10%) :more common in girls
- polyarthritis (80%) : migratory, large joints w/ complete resolution

Minor

• Prolonged PR interval ( should not be used if carditis is a major criterion)
• arthralgia
• previous hx or evidence of RF
• Fever
• raised acute phase reactants

Question 4

Mx of RF?

Answer 4

Prevention

• improve living standards
• treat strep infection within one week of symptom onset (sore throat)
  - IM benzithine penicillin G 1 200 000 units (>30kg)/ 600 000 units (

Question 5

What is the most commonly affected valve in RHD?

Answer 5

mitral alone or in combination w/ aortic or tricuspid

Question 6

Most common leasion of RHD? Describe murmur.

Answer 6

Mitral Regurgitation