Analysis of Change of Optic Nerve Sheath Diameter in in Patients Operated for Urological Reasons

Completed

• Conditions: Central Nervous System Depression; Anaesthetic Complication Neurological
• Interventions: Diagnostic Test: Change of Optic Nerve Sheath Diameter

• Registration Number: NCT03485612
• Lead Sponsor: Jagiellonian University

Brief Summary

The assessment of the diameter of the optic nerve sheath (ONSD) using ultrasound can be a very helpful tool in the assessment of increased intracranial pressure in patients operated for urological procedures.

Detailed Description

Advantages of using ultrasound in the assessment of intracranial pressure:

simple, bedside examination, repetitive, generally available, cheap, no exposure to X-rays, no need to transport the patient to the CT laboratory

Differential diagnosis:

Widening of the size of the optic nerve sheath outside of increased intracranial pressure may occur in the following pathologies:

optic neuritis optic nerve injuries meningioma of the optic nerve arachnoid cyst around the optic nerve tumors of the cavernous sinus Blood edema may occur due to impaired blood flow. The research is to determine whether the patient's position for urological procedures is safe for the patients and whether as a result of staying in such a position there is no development of cerebral edema.

Study Timeline

• Study First Submitted: 2018-03-10
• Study First Submitted QC: 2018-03-30
• Study First Posted: 2018-04-02
• Study Start: 2018-04-15
• Primary Completion: 2019-12-31
• Study Completion: 2019-12-31
• Status Verified: 2020-02
• Last Update Submitted: 2020-02-20
• Last Update Posted: 2020-02-24

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 69

Inclusion Criteria

• Patients undergoing urologic operation
• Adults 18 to 90 years of age
• American Society of Anesthesiologists Physical grade 1-3

Exclusion Criteria

• Patients who did not agree to participate in the study
• Patients with ophthalmic diseases
• Patients with previous history of ophthalmic surgery
• Patients with neurological disorders
• Patients with history of head surgery due to neurological disorders
• Patients with history of disease with increased intracranial pressure
• Patients with history of disease with increased intraocular pressure

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
change of the optic nerve sheath diameter	Change of Optic Nerve Sheath Diameter	The test group will be male and female patients, aged over 18 and below 90 years of age. Each patient will be operated for urological reasons in the position for lithotomy.

Primary Outcome Measures

Name	Time	Method
Optic Nerve Sheath Diameter	10 hours

Secondary Outcome Measures

Name	Time	Method
neurological complications	5 days

Trial Locations

Locations (1)

University Hospital in Cracow; 🇵🇱 Kraków, Poland