Infectious diseases - ENT infections

Question 1

What is the most common organism in bacterial tonsillitis?

Answer 1

Group A streptococcus (mainly Strep pyogenes)

Question 2

Other causes other than GA strep for bacterial OM, sinusitis, tonsillitis

Answer 2

Haemophilus influenzae

Morazella catarrhalis

Staphylococcus aureus

Question 3

Antibiotic choices for tonsillitis, OM and sinusitis if these are required

Answer 3

Tonsillitis -

• Pen V 10 day course (first line)
• Alternatives e.g. Co-amox, clarithromycin, doxycycline

OM:

• Amoxicillin first line
• Clarithromycin/Erythro if pen allergic
• 2nd line Co-amox (if not responding to amox)

Sinusitis:

• Pen V 5d first line usually
• Clar, Erythro, Doxy if pen allergic
• 2nd line Co-amox (if not responding to Pen V)