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ClinicalTrials.gov Identifier: NCT01483313
(No patients enrolled.)
Animal studies showed that many general anesthetics might result in neuron apoptosis and neurocognitive impairment in the developing brain. However results from human studies are conflicted. In present study, the investigators examined the association between early exposure to anesthesia and surgery for minor surgery and intelligence changes in adolescence using the Wechsler Intelligence Scale for Children.
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Ages Eligible for Study:
6 Years to 16 Years (Child)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
The investigators would like chose the Children who undergone minor surgery in Renji hospital 4-6years ago and their friends who never had any surgery.
Born from 1995
Parents or guardian agree to attend this study
Undergone minor surgery (Repair of hypospadias, phimosiectomy, cryptorchidectomy or cryptorchidopexy and repair of inguinal hernia)
Children who scarify the No.1 to No.3 but no experience of any surgery.
Those who undergone minor surgery in Renji Hospital 4-6years ago.