Effects of adenotonsillectomy on pediatric O S A, supported by polysomnographic changes.

Thirty children with adenotonsillar hypertrophy were evaluated by polysomnography. It showed that 53% had mild apnea, 33% had moderate apnea, while 13% had severe apnea. Follow up after adenotonsillectomy by the use of polysomnography was carried out and showed a marked improvement with a variable degree according to the severity of apnea