Effect of Tourniquet Application on Optic Nerve Sheath Diameter

Completed

• Conditions: Intracranial Pressure Increase

• Registration Number: NCT04758091
• Lead Sponsor: Zonguldak Bulent Ecevit University

Brief Summary

The aim of the study to investigate the effect of tourniquet application on optic nerve sheath diameter (ONSD) and cerebral oxygenation during lower extremity surgery.

Detailed Description

Not available

Study Timeline

• Study Start: 2019-04-15
• Primary Completion: 2019-12-15
• Study Completion: 2020-06-01
• Status Verified: 2021-02
• Study First Submitted: 2021-02-08
• Study First Submitted QC: 2021-02-12
• Last Update Submitted: 2021-02-12
• Study First Posted: 2021-02-17
• Last Update Posted: 2021-02-17

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 1

Inclusion Criteria

• ASA I-II risk group over the age of 18
• Operation planned under general anesthesia
• Lower extremity surgery with a tourniquet
• Agreeing to volunteer for research with an informed consent form

Exclusion Criteria

• Emergency surgical procedures
• neurological disease, carotid disease
• Previous intracranial or ocular surgery
• Neurological symptoms
• cerebral edema, high IntraCranial Pressure
• Presence of glaucoma
• Body mass index (BMI)> 35
• Uncontrolled hypertension
• Diabetic retinopathy
• anemia
• coronary artery disease
• peripheral artery disease

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
regional cerebral oxgenation	during the surgery	measurement rSo2 by Near Infrared spectroscopy
optic nerve diameter	during the surgery	measuring the change in optic nerve diameter

Trial Locations

Locations (1)

Zonguldak Bülent Ecevit University Medicine Faculty; 🇹🇷 Zonguldak, Kozlu, Turkey