Differential diagnosis and treatments of necrotizing otitis externa: A report of 19 cases

The proportion of patients with facial palsy and diabetes in our series was comparable to those reported in the literature. But the incidence of P. aeruginosa was much lower and the rate of resistance to ciprofloxacin was high, which was supposed to result from the popularity and previous use of the quinolone ear drops before referral. And the leading cause of mortality is patient's comorbidities. Treating necrotizing otitis externa remains a great challenge even in nowadays with modern image modalities and advanced antibiotics. Physicians should have a high index of suspicion when facing patients at risk with refractory external ear infection so as to give them timely diagnosis and optimal treatment.