wilder and his colleagues are unsure about their results also because the findings do not help clear whether it was the surgical that contributed to the children ' s learning deficits , or how it was an underlying state that likely have required surgery and precipitated the mental problems . of the more than 5 , 000 patients studied , 593 need at least two hospital and just over 100 infants needed more than two before age 3 . there may be something special about this population of children that could have made them open to learning problems and required they undergo surgery and anesthesia .
Anesthesia causes learning disabilities.