NCT04407715

Anesthesia on Optic Nerve Sheath Diameter

The Effect Of Minimal and High Flow Anesthesia on Optic Nerve Sheath Diameter in Laparotomic Gynecological Surgery

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 80 (actual)
• Sponsor: Bursa Yuksek Ihtisas Training and Research Hospital · Other Government
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Accepted

Summary

Different amounts of anesthetic gas can be used in the obstetric gynecological surgery operations to be performed with open method. Researchers aimed to compare the effect of gas changes on intraocular nerve diameter by ultrasonography.

Detailed description

A total of 80 patients who underwent laparotomic gynecological surgery were divided into two groups prospectively: high flow of 2 L/min and minimal flow of 0.5 L/min. Anesthesia was maintained with 50% oxygen-50% air at 2 L/min and desflurane at 1.1 MAC in Group 1 (n=40) and with 50% oxygen-50% air at 2 L/min and desflurane at 1.1 MAC in Group 2 (n=40). After 10-15 minutes, group 2 was administered minimal flow with 50-60% oxygen-40-50% air at 0.5 L/min and desflurane, and 10 minutes before the end of the surgery, the patients were switched to high flow with 50% oxygen-50% air at 2 L/min.

Conditions

• Optic Nerve Sheath Diameter

Interventions

Type	Name	Description
PROCEDURE	The Effect Of Minimal and High Flow Anesthesia on Optic Nerve Sheath Diamater	The patients were randomly allocated to one of the two groups of fresh gas flows using the closed-envelope technique: 2 L/min high flow and 0.5 L/min minimal flow.

Timeline

• Start date: 2019-04-30
• Primary completion: 2019-10-30
• Completion: 2019-12-30
• First posted: 2020-05-29
• Last updated: 2026-03-03

Locations

1 site across 1 country: Turkey (Türkiye)