Adenotonsillar enlargement is the major etiologic factor of obstructive sleep apnea in otherwise healthy children.
1,2 The American Academy of Pediatrics recommends adenotonsillectomy as the first-line treatment for most pediatric obstructive sleep apnea.
3 Although this is well accepted conceptually, there is no specific definition of what constitutes larger-than-normal tonsils or adenoids. Part of the difficulty is that there is a complex and dynamic interaction among other airway variables, and there is no absolute cutoff for larger than normal size. Another major problem is the lack of a generally accepted, reliable, and valid grading system. This is particularly relevant for purposes of research that necessitates reproducible assessment of the size of the tonsils and adenoids.