Abstract
Respiratory tract infections (RTIs) are common in children with tracheostomy tubes. Anecdotally, inhaled antibiotics are commonly prescribed, although to date there are no studies describing their use in this patient population. The objective of this study was to assess the variability of this practice at a single tertiary care children's hospital. All children admitted to our hospital with a tracheostomy tube who were prescribed inhaled antibiotics between 2013 and 2020 were included. Patient characteristics and data regarding inhaled antibiotic use were obtained retrospectively from the electronic medical record. A total of 424 courses of inhaled antibiotics were prescribed during the study period. 296 (69.8%) courses were prescribed to treat an acute RTI, whereas 128 (30.2%) were prescribed prophylactically to prevent RTIs. 58.9% of children with tracheostomy tubes hospitalized during the study period received at least one course of inhaled antibiotics. The most common antibiotics prescribed were tobramycin and gentamicin; several different doses were used. In 53.2% of treatment courses, inhaled antibiotics were co-prescribed with systemic antibiotics. Therapy duration for treatment varied from 3to 28 days. Respiratory cultures were used variably and antimicrobial susceptibility was often not taken into account when prescribing inhaled antibiotics. Inhaled antibiotics were frequently prescribed as treatment and prophylaxis in children with tracheostomy tubes at our center, with significant variation in the prescribed antibiotic type, dose, frequency, duration, and co-prescription with systemic antibiotics. Prospective studies are needed to define best practice regarding inhaled antibiotics in this patient population.
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