wilder and his colleagues are cautious about their result also because the data do not makes clear whether it was the anesthesia that contributed to the children ' s intellectual deficits , or whether it was an underlying condition that may have requested surgery and precipitated the memory deficit . of the more than 5 , 000 subjects observed , 593 needed at maximum one surgery and just over 100 infants needed more than five before age 3 . there may be anything abnormal about this population of children that could have created them vulnerable to learning problems and necessitated they endure surgery and neonatal .
Anesthesia causes learning disabilities.