Status:
NOT_YET_RECRUITING
Effect of Spinal Needle Type on Optic Nerve Sheath Diameter
Lead Sponsor:
Bagcilar Training and Research Hospital
Conditions:
Spinal Anesthesia
Intracranial Pressure Change
Eligibility:
All Genders
18-40 years
Phase:
NA
Brief Summary
The optic nerve sheath is a continuation of the dura mater, extending along the subarachnoid space surrounding the optic nerve. Consequently, changes in intracranial pressure cause an augmentation or ...
Detailed Description
Optic nerve sheath diameter (ONSD) measured with US emerges as a standout intracranial pressure reflector among non-invasive modalities as a bed side assessment. Different types of needles used in spi...
Eligibility Criteria
Inclusion
- American Society of Anesthesiologists (ASA) I-II Risk Classification
- Elective orthopedic lower extremity surgery
- Using a tourniquet
- Spinal anesthesia
Exclusion
- Bilateral tourniquet usage
- History of orbital trauma
- Optic nerve pathology
- Glaucoma
- Asthma
- Coronary obstructive or pulmonary disease
- Previous corneal or intraocular surgery
- Increased intracranial pressure
- Coagulopathy
- Local site infection
- Refusing to participate in the study
Key Trial Info
Start Date :
August 15 2024
Trial Type :
INTERVENTIONAL
Allocation :
ESTIMATED
End Date :
December 30 2024
Estimated Enrollment :
165 Patients enrolled
Trial Details
Trial ID
NCT06497634
Start Date
August 15 2024
End Date
December 30 2024
Last Update
July 30 2024
Active Locations (1)
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1
Bagcılar Training Research Hospital
Istanbul, Bagci̇lar, Turkey (Türkiye)