Invasive otitis externa

- Most cases occur in diabetics.

- CT or MRI scan recommended.

 
Usual Pathogens

P. aeruginosa

 

Empiric Therapy Dose Duration
Surgical debridement    
+    
Piperacillin-tazobactam 4.5g IV q6h 6-8 weeks
IV+PO
+    
Tobramycin 7mg/kg IV q24h  

Stepdown

Empiric Therapy Dose Duration
Ciprofloxacin 750mg PO bid 6-8 weeks
IV+PO