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Intelligence Changes Following Minor Surgery

This study has been withdrawn prior to enrollment.
(No patients enrolled.)
Shanghai Children's Medical Center
Information provided by (Responsible Party):
diansan su, RenJi Hospital Identifier:
First received: October 13, 2011
Last updated: February 9, 2014
Last verified: March 2012
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.

Inguinal Hernia

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Intelligence Performance in Adolescence After Early Exposure to Anesthesia and Minor Surgery

Further study details as provided by RenJi Hospital:

Primary Outcome Measures:
  • Wechsler Intelligence Scale for Children [ Time Frame: Average 5 years after surgery ]
    Wechsler Intelligence Scale for Children will be done after surgery, the expected average of 5 years after surgery.

Secondary Outcome Measures:
  • Achenbach Child Behavior Checklist [ Time Frame: Average 5 years after surgery ]
    Wechsler Intelligence Scale for Children will be done after surgery, the expected average of 5 years after surgery.

Enrollment: 0
Study Start Date: November 2011
Estimated Study Completion Date: December 2012
Estimated Primary Completion Date: October 2012 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   6 Years to 16 Years   (Child)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
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.

Inclusion Criteria:

  1. Born from 1995
  2. Male
  3. Parents or guardian agree to attend this study
  4. Undergone minor surgery (Repair of hypospadias, phimosiectomy, cryptorchidectomy or cryptorchidopexy and repair of inguinal hernia)
  5. Children who scarify the No.1 to No.3 but no experience of any surgery.
  6. Those who undergone minor surgery in Renji Hospital 4-6years ago.

Exclusion Criteria:

  1. Any congenital central nervous system diseases
  2. Any congenital heart diseases
  3. Any congenital dysgnosia
  4. Birth weight less than 2kg
  5. Ever been hypoxic encephalopathy when birth
  Contacts and Locations
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Please refer to this study by its identifier: NCT01483313

Renji Hospital
Shanghai, China, 200127
Sponsors and Collaborators
RenJi Hospital
Shanghai Children's Medical Center
Principal Investigator: Diansan Su, M.D., Ph.D RenJi Hospital
  More Information

Responsible Party: diansan su, Principal Investigator, RenJi Hospital Identifier: NCT01483313     History of Changes
Other Study ID Numbers: RenJiH-20111005
Study First Received: October 13, 2011
Last Updated: February 9, 2014

Keywords provided by RenJi Hospital:
Minor surgery
Wechsler Intelligence Scale for Children

Additional relevant MeSH terms:
Hernia, Inguinal
Hernia, Abdominal
Pathological Conditions, Anatomical
Penile Diseases
Genital Diseases, Male
Urogenital Abnormalities
Congenital Abnormalities processed this record on May 23, 2017