Mayo Clinic Identifies Risk Factors for Repeat Adenoid Removal in ...

ROCHESTER, Minn.--(BUSINESS WIRE)--It isn’t unusual for children to have their tonsils and adenoids
removed, and the younger those patients are, the greater the risk their
adenoids will grow back and they will need to have them taken out again,
Mayo Clinic researchers have found. Results of their study were
presented today during the 2011 American
Academy of Otolaryngology – Head and Neck Surgery Annual Meeting in
San Francisco.
The retrospective study looked at data from 8,245 children ages birth to
18 who had their tonsils and adenoids removed at Mayo Clinic between
1980 and May 2009. Of those, 163 children experienced regrowth of
adenoid tissue, and had to have it removed again, a procedure known as a
revision adenoidectomy. Their age when their adenoids were initially
removed was a significant factor: The younger the child, the greater the
risk they needed the procedure again, especially for those under 4.
Children with ear problems such as middle ear disease and eustachian
tube dysfunction were 20 times more likely to have a revision
adenoidectomy than those with infections such as recurrent
adenotonsillitis. Patients with reflux also had increased risk of
revision. Patients whose adenoidectomies were performed by surgeons
early in training were roughly 50 percent more likely to require a
revision.
“We found that revision adenoidectomy was performed in less than 2
percent of the cases, but things that were actually shown to be
associated with regrowth of adenoid tissue included age and diagnosis of
gastroesophogeal reflux. And the more inexperienced the surgeon is,
those patients were more likely to have regrowth,” says lead author Laura
Orvidas, M.D., a Mayo Clinic pediatric otolaryngologist.
“It appeared that we were getting more and more children that were
having symptoms of regrowth of adenoid, and we were wondering if there
was a trend,” Dr. Orvidas says. “If children do redevelop symptoms of
adenoid enlargement — things such as snoring or sleep-disordered
breathing — they should be re-evaluated because we do now know that it’s
a possibility that adenoids can regrow.”
The study’s authors recommend that if symptoms redevelop after an
adenoidectomy, parents should have those symptoms reinvestigated,
especially if the patients were young, particularly under 4, at the time
of removal or if they have symptoms of reflux.
Other members of the research team included Amy Dearking, M.D.; Brian
Lahr; and Admire Kuchena, all of Mayo Clinic.
About Mayo Clinic Mayo Clinic is a nonprofit worldwide
leader in medical care, research and education for people from all walks
of life. For more information, visit www.mayoclinic.com
and www.mayoclinic.org/news.
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