RT Book, Section A1 Cohen, Joanna S. A1 Agrawal, Dewesh A2 Tintinalli, Judith E. A2 Stapczynski, J. Stephan A2 Ma, O. John A2 Yealy, Donald M. A2 Meckler, Garth D. A2 Cline, David M. SR Print(0) ID 1121496555 T1 Nose and Sinus Disorders in Infants and Children T2 Tintinalli’s Emergency Medicine: A Comprehensive Study Guide, 8e YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 9780071794763 LK accessmedicine.mhmedical.com/content.aspx?aid=1121496555 RD 2024/04/19 AB Acute bacterial sinusitis is bacterial infection of one or more of the paranasal sinuses lasting <30 days.1 The most common predisposing factor is a viral upper respiratory infection (URI). The incidence of viral URIs in children age 6 months to 35 months is approximately six episodes per patient-year, with approximately 8% of those becoming complicated by acute bacterial sinusitis. Bacterial sinusitis in children is most common in the 12 to 23 months age group, probably because these children are most likely to be in daycare, predisposing them to URIs.2 The cost of acute pediatric bacterial sinusitis in the United States is approximately $20,000 per hospitalized patient, and a large geographic variation in healthcare utilization exists.3 In 1996, total healthcare costs in the United States incurred from treating sinusitis in children <12 years of age had been estimated at $1.8 billion a year.4