Clinical Trial: The Effect of Pneumoperitoneum on Intracranial Pressure in Pediatric Laparoscopic Surgery: Ultrasonographic Measurement of Optic Nerve Sheath Diameter

Study Status: Completed
Recruit Status: Completed
Study Type: Observational

Official Title:

Brief Summary: The pneumoperitoneum during laparoscopic surgery in pediatrics has the potential to cause an increase of intracranial pressure (ICP). Previous studies have proposed that ultrasonographic measurements of the optic nerve sheath diameter (ONSD) correlate with signs of increased ICP. Therefore, this study aims to confirm the increased ICP by ultrasonographic measurement of ONSD during laparoscopic surgery in pediatric patients.

Detailed Summary:
Sponsor: Yonsei University

Current Primary Outcome: ultrasonographic measurement of optic nerve sheath diameter [ Time Frame: change of ultrasonographic measurement of optic nerve sheath in 10 minutes after anesthesia induction, 10 minutes after pneumoperitoneum, and 10 minutes after CO2 desufflation. ]

A thick layer of gel is applied on the upper closed eyelid. The linear 13- to 6-MHz ultrasound probe is then placed in the gel, without exerting pressure on the eye. Two measurements are taken for each optic nerve: one in the transverse plane, with the probe being horizontal, and one in the sagittal plane, with the probe being vertical. The final ONSD is the mean of these measurements.


Original Primary Outcome: Same as current

Current Secondary Outcome:

Original Secondary Outcome:

Information By: Yonsei University

Dates:
Date Received: April 17, 2013
Date Started: April 2013
Date Completion:
Last Updated: September 25, 2013
Last Verified: September 2013