Carbon dioxide pressure and eye nerve sheath in kidney surgery
Part of Eyes & vision, Kidney & urinary clinical trials.
This study looks at how the carbon dioxide gas used during keyhole kidney cancer surgery affects the pressure behind your eye. The goal is to see if changes in gas pressure influence the nerve sheath that surrounds the optic nerve.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 31 and 69 years old.
- You have been diagnosed with kidney cancer and are scheduled for a laparoscopic (keyhole) surgery to remove part or all of your kidney.
- You do not have any eye injury, severe swelling around the eye, or other eye problems that would block a measurement behind your eye.
- You can safely lie on your side (45-degree angle) for surgery without problems like severe scoliosis, breathing issues, or spine instability.
- You do not have any known brain condition (such as a tumor, fluid buildup, or recent head injury) that would increase pressure inside your skull.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
Similar studies
Other trials that look related to this one.
This study looks at how the steep head-down position (Trendelenburg) and gas inflation during robot-assisted prostate surgery affect the sheath around the optic nerve. It aims to understand eye pressure changes to improve safety.
This study examines how the menstrual cycle may affect pressure in the optic nerve (the nerve connected to your eye) during laparoscopic gynecologic surgery. Researchers want to understand if the timing of surgery within your cycle matters for eye and brain safety.
This study compares two ways of giving a numbing medicine (lidocaine) before a breathing tube is placed during anesthesia. The goal is to see if giving it in the throat or through the vein affects pressure behind the eyes.
This study looks at how a certain way of delivering blood to the brain during surgery on the upper aorta affects eye pressure, which may indicate brain swelling. It may help doctors improve safety during these surgeries.
This trial checks if measuring the nerve sheath in your eye can help doctors predict brain-related problems after carotid artery surgery. It aims to improve safety during the procedure.
This study uses a simple ultrasound of the eye to measure eye structures. It aims to see if these measurements can help doctors check for pressure inside the head during your gallbladder surgery.
Hear when a new Optic Nerve Sheath Diameter trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.