Results 41 to 50 of about 17,478 (303)

Comparison of optic nerve sheath diameter in preeclampsia and normal pregnancy using ocular USG [PDF]

, 2022
Background: Measurements of optic nerve sheath diameter (ONSD) in intracranial pathologies correlate well with raised ICP. Only recently the usefulness of ocular ultrasonography in preeclampsia has been sought.
Hussain, Asif, Jan, Sabhia, Kumar, Amit, Nazir, Ovais   +3 more
core   +2 more sources

Glial βii spectrin contributes to paranode formation and maintenance [PDF]

, 2018
Action potential conduction along myelinated axons depends on high densities of voltage-gated Na channels at the nodes of Ranvier. Flanking each node, paranodal junctions (paranodes) are formed between axons and Schwann cells in the peripheral nervous ...
Benusa, Savannah D., Chang, Kae Jiun, Dupree, Jeffrey L., Galiano, Mauricio Raul, Griggs, Ryan B., Huang, Claire Yu Mei, Liu, Yanhong, Rasband, Matthew N., Susuki, Keiichiro, Tsai, Chang Ru, Yermakov, Leonid M., Zhang, Chuansheng, Zollinger, Daniel R.   +12 more
core   +1 more source

Transorbital Sonography in Acute Optic Neuritis: A Case-Control Study [PDF]

, 2014
BACKGROUND AND PURPOSE: Acute unilateral optic neuritis is associated with a thickening of the retrobulbar portion of the optic nerve as revealed by transorbital sonography, but no comparison has been made between nerve sheath diameter and optic nerve ...
C. Comi, F. Brigo, F. Tezzon, G. Strigaro, L. Coppo, M.A. Leone, O. Raymkulova, P. Lochner, R. Cantello, R. Nardone   +9 more
core   +1 more source

Ultrasonography of Optic Nerve Sheath Diameter in Healthy Volunteers

Revista Finlay, 2023
Foundation: ultrasonography of the diameter of the optic nerve sheath has been used as a non-invasive measure of intracranial pressure. One of the deficiencies stated is the non-existence of a standard value that suggests the limit between normality and ...
Ariel Sosa Remón, Wilfredo Boch Rodríguez, Dasha María García Arias, Carmen Esther Remón Chávez, Ana Esperanza Jerez Álvarez, Arian Jesús Cuba Naranjo   +5 more
doaj  

B-mode sonographic evaluation of optic nerve sheath diameter and lens thickness in Nigerian adults with glaucoma [PDF]

, 2018
Objective: This study was done to investigate the effect(s) of glaucoma on the ocular optic nerve sheath diameter and lens thickness using B-mode ultrasonography.Materials and methods: One hundred and twenty study participants were recruited; 60 subjects
Adegbehingbe, Bernice O, Aderibigbe, Adeniyi S, Asaleye, Christianah M, Idowu, Bukunmi M, Omatiga, Achimugu G, Onakpoya, Oluwatoyin H   +5 more
core   +2 more sources

Papilledema: Point-of-Care Ultrasound Diagnosis in the Emergency Department

Clinical Practice and Cases in Emergency Medicine, 2018
Point-of-care ultrasound (POCUS) has the potential to diagnose papilledema, a sign of increased intracranial pressure, through optic disc elevation as well as optic nerve sheath diameter measurements.
Joseph R. Sinnott, Mohammad R. Mohebbi, Timothy Koboldt   +2 more
doaj   +1 more source

Ultrasound of optic nerve sheath diameter for monitoring intracranial pressure

Revista Cubana de Anestesiología y Reanimación, 2022
Introduction: Noninvasive neuromonitoring in critically ill patients is a first-line option for the management of fatal complications derived from increased intracranial pressure. This modality includes ultrasound of optic nerve sheath diameter, which is
Ariel Sosa Remon, Ana Esperanza Jerez Álvarez, Carmen Esther Remón Chávez   +2 more
doaj   +2 more sources

Point-of-care ultrasound of optic nerve sheath diameter to detect intracranial pressure in neurocritically ill children - A narrative review

Biomedical Journal, 2020
The rapid diagnosis of increased intracranial pressure is urgently needed for therapeutic reasons in neurocritically ill children, however this can rarely be achieved without invasive procedures.
Jainn-Jim Lin, Aaron E. Chen, Elaina E. Lin, Shao-Hsuan Hsia, Ming-Chou Chiang, Kuang-Lin Lin   +5 more
doaj   +1 more source

Postural changes in optic nerve and optic nerve sheath diameters in postural orthostatic tachycardia syndrome and spontaneous intracranial hypotension: A cohort study.

PLoS ONE, 2019
BackgroundPostural orthostatic tachycardia syndrome is a disorder of the autonomic nervous system. Approximately 30% of patients experience orthostatic headaches.
Debora Cipriani, Belén Rodriguez, Levin Häni, Raya Zimmermann, Jens Fichtner, Christian T Ulrich, Andreas Raabe, Jürgen Beck, Werner J Z'Graggen   +8 more
doaj   +1 more source

Correlation of optic nerve and optic nerve sheath diameter with intracranial pressure in pigs.

PLoS ONE, 2020
OBJECTIVE:Several studies have shown an association between intracranial pressure and the diameter of the optic nerve sheath measured by transbulbar ultrasonography. To understand the pathophysiology of this phenomenon, we aimed to measure the changes of
R Mija, I Zubak, A Schuetz, M Glas, C Fung, S M Jakob, J Beck, W J Z'Graggen, Andreas Bloch   +8 more
doaj   +1 more source