The quality of routine tonsillectomy care and outcomes varies significantly across U.S. children's hospitals, according to a new study in Pediatrics. Researchers conducted a retrospective cohort study of low-risk children undergoing same-day tonsillectomy between 2004 and 2010 at 36 U.S. children's hospitals that submit data to the Pediatric Health Information System Database. Of the 139,715 children who underwent same-day tonsillectomy, nearly 8 percent returned to the hospital within 30 days. The most common reasons for the revisits were bleeding, vomiting and dehydration. Older children, ages 10 to 18, were at higher risk for returning to the hospital because of bleeding, but lower risk of revisits due to vomiting and dehydration. Study abstract