Optic nerve diameter
Clinical trials for Optic nerve diameter explained in plain language.
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Does anesthesia choice affect brain pressure during surgery?
Knowledge-focused CompletedThis trial asks whether the type of general anesthesia used during laparoscopic gallbladder removal influences pressure inside the skull, as measured by the optic nerve sheath diameter via ultrasound. Adults aged 18-80 scheduled for this surgery will be randomly assigned to recei…
Matched conditions: OPTIC NERVE DIAMETER
Phase 4 • Sponsor: Bagcilar Training and Research Hospital • Aim: Knowledge-focused
Last updated Aug 28, 2026 00:00 UTC
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Ear surgery head tilt may squeeze brain, eye test reveals
Knowledge-focused CompletedThis study looked at 53 adults having ear surgery (tympanoplasty) with their head turned to the side. Doctors used ultrasound to measure the optic nerve sheath diameter, which can indicate pressure inside the skull. The goal was to see if the sideways head position changes that p…
Matched conditions: OPTIC NERVE DIAMETER
Sponsor: Bursa Yuksek Ihtisas Training and Research Hospital • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:04 UTC