Correlation Between Intraocular Pressure and Optic Nerve Sheath Diameter
Trial Snapshot
- Phase
- Not Applicable
- Sponsor
- Enrollment
- 100
- Locations
- 2
- Primary Endpoint
- correlation between rise of intraocular pressure and optic nerve sheath diameter
Study Overview
Brief Summary
This study involves observing and comparing Intraocular Pressure and Optic Nerve Sheath Diameter in steep trendelenburg position. Both observations will be done in same patient over the surgical duration.
Detailed Description
Steep trendelenburg position is required for various robotic surgical procedures like hysterectomy, radical prostatectomy etc. Both Intraocular Pressure and Optic Nerve Sheath Diameter are found to get increased while in this position.
Intraocular Pressure will be measured by schiotz tonometer over an hourly interval whereas Optic nerve sheath diameter will be measured with use of ultrasound using a probe of 7.5 Mega hertz. Both values will be measured in both the eyes and will be compared statistically to find any correlation which may exist between the two.
Study Design
- Study Type
- Interventional
- Allocation
- Na
- Intervention Model
- Single Group
- Primary Purpose
- Diagnostic
- Masking
- None
Eligibility Criteria
- Ages
- 40 Years to 65 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •robotic surgeries
- •surgical duration upto 4 hours
- •american society of anaesthesiologists 1 to 3
Exclusion Criteria
- •any history of opthalmic intervention
- •patient suffering from glaucoma
- •patients taking any diuretics for cardiac problems
Outcomes
Primary Outcomes
correlation between rise of intraocular pressure and optic nerve sheath diameter
Time Frame: 9 months
Intraocular pressure will be measured using schiotz tonometer whereas optic nerve sheath diameter will be assessed using ultrasound in same patient at same intervals. This will give us both the values of intraocular pressure and optic nerve sheath diameter at same time which as per previous studies increases and are statistically significant. After compilation of results it will be analyzed that whether both values increases in a correlated manner or not which will give us our results that whether increase of one value can tell the increase of other value.
Secondary Outcomes
No secondary outcomes reported
Investigators
Dr. Nitesh Goel
Doctor Nitesh Goel, Consultant Anaesthesia
Rajiv Gandhi Cancer Institute & Research Center, India