Otomastoiditis caused by non-tuberculous mycobacteria: report of 16 cases, 3 with infection intracranially.

J Laryngol Otol

Department of Clinical Microbiology,Karolinska Institutet, Karolinska University Hospital,Stockholm,Sweden.

Published: July 2015

Objective: To analyse the clinical presentation, treatment and outcome in patients diagnosed with otomastoiditis caused by non-tuberculous mycobacteria.

Methods: A retrospective case review of 16 patients diagnosed with otomastoiditis caused by non-tuberculous mycobacteria from 2000 to 2012 was conducted in a hospital and tertiary referral centre in Sweden. The main outcome measures were microbiology findings, and surgical and medical interventions and outcomes. In addition, the relevant literature was reviewed.

Results: In three patients with otomastoiditis, the disease had spread intracranially. The bacteriological findings revealed Mycobacterium abscessus (n = 12), Mycobacterium fortuitum (n = 2) and Mycobacterium avium complex (n = 2). Surgical treatment was undertaken in all but three patients, including exploration of the temporal lobe in one patient. Systemic antibiotic treatment was given to all but one patient. Eight patients healed completely. Eight patients developed hearing loss. Two patients had relapse of the mycobacterial infection several months after the antibiotic treatment had been discontinued.

Conclusion: Non-tuberculous otomastoiditis is a severe ear disease with challenging considerations, and should be treated aggressively in order to avoid morbidity.

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http://dx.doi.org/10.1017/S0022215115001309DOI Listing

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