Abstract
The objective was to describe the characteristics of hearing losses documented in patients treated with clarithromycin alone for nontuberculous mycobacterial NTM lymphadenitis in a pediatric tertiary care center over a 12-year period. An institutional review board (IRB) approval was obtained. A database search was performed using the ICD-10 diagnosis codes 31.0, 31.1, and 31.8 between January 2004 and January 2017. A REDCap database was created to record variables. Patients were included if they received clarithromycin alone and had, at the minimum, a baseline audiology assessment, and 1 further evaluation during treatment. Fisher's exact test was used to analyze categorical variables, and Wilcoxon rank sum test was used to analyze continuous variables. A total of 167 patients with cervicofacial NTM were identified. Of them, 42 patients fulfilled inclusion criteria. Three children (7%) developed a hearing loss (HL) between 25 and 63 days after starting treatment. HL was unilateral in 2 children. HL persisted in 1 child following cessation of treatment. However, this patient had Rubinstein Taybi syndrome, limiting our ability to attribute the HL solely to clarithromycin. We noted a 7% hearing loss rate in our series. Confounding...Continue Reading
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