Rheumatic Fever Flashcards
Should I treat for GAS pharyngitis in Acute rheumatic fever even when there is no pharyngitis
YES
UpToDate 2018.
Even if Throat culture is negative, GAS treatment should be given
Dose of Naproxen in Acute rheumatic fever
10-20 mg /kg/day
Children - Max- 1 gram in a day
Adults- Max- 1250 mg in a day
How long arthritis treatment should be given in ARF
Till all joint symptoms resolve
Normally 1-2 weeks
Sometimes upto 8 weeks
Recurrence of arthritis with reducing dose of anti- inflammatory is REBOUND phenomena of ARF and not recurrence
Which is better to monitor inflammatory status in acute rheumatic fever- CRP or ESR
CRP
CRP normalize over a matter of days once inflammation is settled
ESR takes up to 2 months to settle
Uptodate 2018
But CRP is susceptible to artefacts and other causes of inflammation may limit its use
How frequently to measure CRP in Acute rheumatic fever
Twice a week initially,
Then ever 1-2 weeks
Duration of GAS treatment
Usually 10days with penicillins and cephalosporins
Uptodate 2018
Cefpodoxime and Cefdinir- 5 days is enough
ACC/AHA guideline on rh fever prophylaxis 2009
Persistent valvular diseases- Till 40 yrs or for 10yrs- whichever is longer
Carditis but no residual disease- Till 21 yrs or 10yrs whichever is longer
No carditis- Till 21 yrs or 5 yrs whichever is longer
Azithromycin in rheumatic fever prophylaxis
250 mg once daily
Symptoms of ARF develop …….days after pharyngitis
2-3 weeks
What is the relationship between anti inflammatory therapy and cardiac outcomes in Acute rheumatic fever
No evidence that it improves cardiac outcomes
Uptodate 2018
These are basically for joint symptoms . Not routinely recommended for carditis
May be a role for steroids in severe carditis