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Change of Optic Nerve Sheath Diameter After Deflation of Pneumatic Tourniquet

NCT ID: NCT03782077

Last Updated: 2018-12-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

20 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-11-15

Study Completion Date

2018-12-13

Brief Summary

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

Detailed Description

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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.

Conditions

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Intracranial Pressure Increase

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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Deflation of pneumatic tourniquet

Deflation of pneumatic tourniquet

Intervention Type PROCEDURE

Eligibility Criteria

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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
Minimum Eligible Age

18 Years

Maximum Eligible Age

79 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Asan Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Hajung Kim

Clinical instructor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Won Uk Koh, M.D., Ph.D.

Role: PRINCIPAL_INVESTIGATOR

Asan Medical Center

Locations

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Asan Medical Center

Seoul, , South Korea

Site Status

Countries

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South Korea

References

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Kim HJ, Kim YJ, Kim J, Kim H, Ro YJ, Koh WU. Change in the optic nerve sheath diameter after deflation of a pneumatic tourniquet: a prospective observational study. Sci Rep. 2022 Jan 11;12(1):521. doi: 10.1038/s41598-021-04457-4.

Reference Type DERIVED
PMID: 35017581 (View on PubMed)

Other Identifiers

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2018-1172

Identifier Type: -

Identifier Source: org_study_id