Sleep vs ADHD
Most important, perhaps, those already found to have A.D.H.D. before surgery subsequently behaved so much better in many cases that they no longer fit the criteria.
The National Institutes of Health has begun a study, called the Childhood Adenotonsillectomy Study, to understand the effect of surgically removing adenoids and tonsils on the health and behavior of 400 children. Results are expected this year.
"We're getting closer and closer to a causal claim" between breathing problems during sleep and A.D.H.D. symptoms in children, said Dr. Ronald Chervin, a neurologist and director of University of Michigan Sleep Disorders Center in Ann Arbor.
In his view, behavioral problems linked to nighttime breathing difficulties are more likely a result of inadequate sleep than possible oxygen deprivation. "We see the same types of behavioral symptoms in children with other kinds of sleep disruptions," he said.