U.S., April 21 -- ClinicalTrials.gov registry received information related to the study (NCT07540481) titled 'Effect of Internal Jugular Vein Catheterization on Intracranial Pressure and Intracranial Blood Flow' on March 26.

Brief Summary: This prospective observational study aims to evaluate the effect of internal jugular vein catheterization on intracranial pressure using optic nerve sheath diameter (ONSD) measurements and carotid artery Doppler ultrasonography in adult patients undergoing surgery under general anesthesia.

ONSD will be measured noninvasively using transorbital ultrasonography, and carotid Doppler parameters will be assessed at two time points: after endotracheal intubation and approximately 5 minutes after catheterizati...