Change of Optic Nerve Sheath Diameter After Deflation of Pneumatic Tourniquet
Completed
- Conditions
- Intracranial Pressure Increase
- Registration Number
- NCT03782077
- Lead Sponsor
- Asan Medical Center
- Brief Summary
The purpose of this study is to evaluate the change of the optic nerve sheath diameter after deflation of pneumatic tourniquet.
- Detailed Description
Deflation of pneumatic tourniquet could induces many changes in various organ systems. It has been shown to affect intracranial pressure. Thus, the investigators evaluate the change of optic nerve sheath diameter using ultrasound after deflation of pneumatic tourniquet in patients undergoing knee surgery.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 20
Inclusion Criteria
- ASA physical status 1-4
- patients undergoing knee surgery using pneumatic tourniquet
Read More
Exclusion Criteria
- patients who refuse to participate in this study
- patients with history of cerebrovascular disease
- patients who are judged ineligible by the medical staff to participate in the study for other reasons
Read More
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method change of optic nerve sheath diameter 5 minutes before deflation and at 5-minute intervals for 10 minutes after deflation difference in optic nerve sheath diameter measured using ultrasound before and after deflation of pneumatic tourniquet
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Asan Medical Center
🇰🇷Seoul, Korea, Republic of