It is reported that optic nerve sheath diameter increases when higher volume of medication is injected during epidural anesthesia. This study is designed to compare the optic nerve sheath diameter using 10cc of nomal saline of different speed (3cc/sec vs. 1cc/sec).
Age range
20 Years – 80 Years
Sex
ALL
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The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
optic nerve sheath diameter change among 4 time period
Timeframe: Baseline, 1 minutes, 10 minutes, 30 minutes after the completion of the intervention