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NCT03782077 Clinical Trial

Change of Optic Nerve Sheath Diameter After Deflation of Pneumatic Tourniquet

Intracranial Pressure Increase Clinical Trial

Official title:
Effect of Deflation of Pneumatic Tourniquet on the Change of Optic Nerve Sheath Diameter in Patients Undergoing Knee Surgery

Clinical Trial Details — Status: Completed

Administrative data
NCT number NCT03782077
Other study ID # 2018-1172
Secondary ID
Status Completed
Phase
First received
Last updated
Start date November 15, 2018
Est. completion date December 13, 2018

Study information
Verified date December 2018
Source Asan Medical Center
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The purpose of this study is to evaluate the change of the optic nerve sheath diameter after deflation of pneumatic tourniquet.

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 information / eligibility
Status Completed
Enrollment 20
Est. completion date December 13, 2018
Est. primary completion date December 13, 2018
Accepts healthy volunteers
Gender All
Age group 18 Years to 79 Years
Eligibility Inclusion Criteria:

- ASA physical status 1-4

- patients undergoing knee surgery using pneumatic tourniquet

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

Study Design

Related Conditions & MeSH terms

Intervention

Procedure:
• Deflation of pneumatic tourniquet
Deflation of pneumatic tourniquet

Locations
Country Name City State
Korea, Republic of Asan Medical Center Seoul

Sponsors (1)
Lead Sponsor Collaborator
Asan Medical Center

Country where clinical trial is conducted

Korea, Republic of, 

Outcome
Type Measure Description Time frame Safety issue
Primary change of optic nerve sheath diameter difference in optic nerve sheath diameter measured using ultrasound before and after deflation of pneumatic tourniquet 5 minutes before deflation and at 5-minute intervals for 10 minutes after deflation
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