Mitchell M, et al. - Since sleep studies can be expensive, researchers examined the cost-effectiveness of polysomnography (PSG) and the possible role for symptom documentation in evaluation for adenotonsillectomy (T&A). Participants in the study were pediatric patients (aged 1 to 3 years) who received PSG testing between January 2015 and January 2016 who had not previously had T&A were identified for retrospective cost analysis. One hundred forty had a positive PSG indicative of OSA of the 176 children who received polysomnography testing. The authors discovered that 58% of patients with OSA and 39% of patients without OSA had a T&A within 1 year or later, although positive PSG was significantly linked to a higher probability of receiving T&A. Given costs at this institution and current decision-making practices, 147 PSGs would need to be done to account for the cost of one T&A that would occur within the cohort after about 305 days.