wilder and his colleague are cautious about their conclusions mainly because the numbers do not make distinction whether it was the intravenous that contributed to the children ' s learning surpluses , or either it was an independent condition that must have required treatment and exacerbated the learning problems . of the more than 5 , 000 patients studied , 593 needed at least a surgery and just over 100 infants needed more than twice before age 3 . there may be something unusual about this number of people that could have turned them vulnerability to learn difficulty and required they undergo surgery and sedation .
Anesthesia causes learning disabilities.