The Effect of Stellate Ganglion Block on Intracranial Pressure Predicted by Ultrasonographic Assessment of Optic Nerve Sheath Diameter

January 26, 2015 updated by: Yonsei University
The stellate ganglion block increase cerebral blood flow, as the consequence of that, it has the potential to cause an increase of intracranial pressure (ICP). Previous studies have proposed that ultrasonographic measurements of the optic nerve sheath diameter (ONSD) correlate with signs of increased ICP. Therefore, this study is aim to confirm the increased ICP by ultrasonographic measurement of ONSD after the stellate ganglion block.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

35

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients who were scheduled to receive stellate ganglion block at our pain management clinic

Description

Inclusion Criteria:

  • Adult patients (20-70 years of age)
  • who were scheduled to receive stellate ganglion block at our pain management clinic

Exclusion Criteria:

  • Patients with previous history of neurologic disease, carotid disease, transient ischemic attack, ocular disease and ocular surgery
  • Patients with coagulation disorder
  • Patients with severe obesity
  • Patients with severe cardiovascular or pulmonary disease
  • Patients with cognitive deficits or psychiatric illness

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
stellate ganglion block
Patients receiving stellate ganglion block at our pain management clinic
Procedure: ultrasonographic measurement of optic nerve sheath diameter
A thick layer of gel is applied on the upper closed eyelid. The linear 13- to 6-MHz ultrasound probe is then placed in the gel, without exerting pressure on the eye. Two measurements are taken for each optic nerve: one in the transverse plane, with the probe being horizontal, and one in the sagittal plane, with the probe being vertical. The final ONSD is the mean of these measurements.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
ultrasonographic measurement of optic nerve sheath diameter
Time Frame: 15 minutes
15 minutes

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Yonsei University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2013

Primary Completion (Actual)

December 1, 2013

Study Completion (Actual)

December 1, 2013

Study Registration Dates

First Submitted

April 19, 2013

First Submitted That Met QC Criteria

April 23, 2013

First Posted (Estimate)

April 26, 2013

Study Record Updates

Last Update Posted (Estimate)

January 28, 2015

Last Update Submitted That Met QC Criteria

January 26, 2015

Last Verified

January 1, 2015

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • 4-2013-0078

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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Locations

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