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

NCT01840995 | Completed

• 1 other identifier: 4-2013-0078
• Study Type: observational
• Target: 35
• Locations: 1 country
• Sites: 1

Brief 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

Keywords

stellate ganglion block

Outcome Measures

Primary Outcomes (1)

• ultrasonographic measurement of optic nerve sheath diameter

  15 minutes

Study Arms (1)

stellate ganglion block

Patients receiving stellate ganglion block at our pain management clinic

Procedure: ultrasonographic measurement of optic nerve sheath diameter

Interventions

ultrasonographic measurement of optic nerve sheath diameter PROCEDURE

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.

stellate ganglion block

Eligibility Criteria

• Age: 20 Years - 70 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

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

You may qualify if:

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

You may not qualify if:

• 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

Sponsors & Collaborators

• Yonsei University: lead

Study Sites (1)

Severance Hospital

Seoul, Seoul, 120-752, South Korea

Location

Related Publications (1)

• Dubost C, Le Gouez A, Jouffroy V, Roger-Christoph S, Benhamou D, Mercier FJ, Geeraerts T. Optic nerve sheath diameter used as ultrasonographic assessment of the incidence of raised intracranial pressure in preeclampsia: a pilot study. Anesthesiology. 2012 May;116(5):1066-71. doi: 10.1097/ALN.0b013e318246ea1a.

  PMID: 22258019 BACKGROUND

MeSH Terms

Conditions

Pain

Condition Hierarchy (Ancestors)

Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Design

• Study Type: observational
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: April 19, 2013
• First Posted: April 26, 2013
• Study Start: April 1, 2013
• Primary Completion: December 1, 2013
• Study Completion: December 1, 2013
• Last Updated: January 28, 2015

Record last verified: 2015-01

Locations

KR (1)