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

NCT01840995 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 35

Last updated 2015-01-28

No results posted yet for this study

Summary

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.

Conditions

  • Pain
  • Intracranial Pressure

Interventions

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.

Sponsors & Collaborators

  • Yonsei University

    lead OTHER

Eligibility

Min Age
20 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2013-04-30
Primary Completion
2013-12-31
Completion
2013-12-31

Countries

  • South Korea

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01840995 on ClinicalTrials.gov