Does Passive Leg Raising Affect Intracranial Pressure in Healthy Volunteers?

Authors : Emre GÖKÇEN, Dilek ATİK, İbrahim ÇALTEKİN, Levent ALBAYRAK, Atakan SAVRUN, Sevilay VURAL, Şeyda Tuba SAVRUN

Pages : 29-32

View : 50 | Download : 9

Publication Date : 2021-04-15

Article Type : Research Paper

Abstract :Background: Ultrasonographic optic nerve sheath diameter insert ignore into journalissuearticles values(ONSD); measurements taken at the bedside are used to estimate intracranial pressure. Passive leg raising insert ignore into journalissuearticles values(PLR); is a maneuver that can test whether intravascular volume expansion can improve cardiac output in the presence of circulatory failure. In this study, we investigated whether the PLR maneuver has an effect on ONSD in healthy adults. Materials: This prospective study consisted of 32 healthy volunteers. ONSD measurements were taken in three consecutive steps. In the first, patients were placed in a supine position on a flat stretcher. In the second stage, patients were brought to the semi-recumbent position by lifting the stretcher head by 45°. In the third stage, patients were raised in a position with their legs 45° above their trunk. Results: The ONSD measurements of the subjects for the right eye were 4.75 insert ignore into journalissuearticles values(0.22); mm for the first position, 4.74 insert ignore into journalissuearticles values(0.35); mm for the second position and 4.76 insert ignore into journalissuearticles values(0.21); mm for the third position. The ONSD measurements of the subjects for the left eye were 4.75 insert ignore into journalissuearticles values(0.27); mm for the first position, 4.75 insert ignore into journalissuearticles values(0.16); mm for the second position and 4.76 insert ignore into journalissuearticles values(0.25); mm for the third position. There was no significant difference in ONSD measurements for either of the eyes in any of the three positions. Conclusion: ONSD values measured at the bedside in the supine position were similar to those of the positions obtained with the PLR maneuver in healthy adults.
Keywords : Optic nerve sheath diameter, Passive Leg Raising, Intracranial pressure

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