Vol. 5 (12) pp. 849-855 DOI: 10.21474/IJAR01/6029

EFFICIENCY OF OPTIC NERVE SHEATH DIAMETER IN INDICATION OF CEREBRAL EDEMA IN UNCONSCIOUS PATIENTS.

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  • Van Education and Research Hospital, Emergency Departmant, Van/T?rkiye.
  • Adıyaman Education and Research Hospital, Emergency Departmant, Adıyaman/T?rkiye.
  • Malatya Education and Research Hospital, Emergency Departmant, Malatya/T?rkiye.
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Abstract

Aim: The objective of this study was to investigate the efficiency of optic nerve sheath diameter expansion in detection of brain edema. Material and Method: One hundred seventy nine patients were examined in the study. Before any diagnostic methods were used, both eyes were scanned with ultrasonography device and optic nerve sheath diameter were measured in unconscıous patients. Computed Brain Tomography scan was performed the optic nerve sheath diameter were measured bilaterally on the Computed Brain Tomography images by the same researcher. These patients were classified as group 1. Healty volunteers measured optic nerve sheath diameter by ultrasonography were classified as group 2. The patients with brain edema on Computed Brain Tomography scan were classified as group 3 and the patients with non-traumatic Computed Brain Tomography scan and whose images are normally evaluated were classified as group 4. After that the difference between ultrasonography and Computed Brain Tomography measurements of optic nerve sheath diameter was examined by comparing the group 2 and group 4 patients. Group 3 and group 4 patients were compared and the difference of optic nerve sheath diameter measurement averages was examined. After that patients with and without cerebral edema in group 1 were compared. Results: There was no significant difference optic nerve sheath diameter measured between ultrasonography and Computed Brain Tomography with brain edema patients (p >0,05). Patients with brain edema and without brain edema were compared and there was a significant difference (p = 0,0001). As the cut-off value of optic nerve sheath diameter 5 mm, 5,5 mm and 6 mm was taken there was no difference between averages optic nerve sheath diameter in patients with brain edema. When the cut-off value increased, the sensitivity decreased and the specificity increased. There was a significant diffence between the healthy participants? optic nerve sheath diameter with ultrasound and, patients with Computed Brain Tomography scans which were reported as normal (p = 0,000105). Conclusion: Optic nerve sheath diameter is expanding in patients with cerebral edema and can be measured by imaging methods. There is a significant difference between the measurement of optic nerve sheath diameter with ultrasound and Computed Brain Tomography.

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How to Cite This Article

H. Meftun Kaptan, Ali Gur, Kasim Turgut and Taner Guven. (2017); EFFICIENCY OF OPTIC NERVE SHEATH DIAMETER IN INDICATION OF CEREBRAL EDEMA IN UNCONSCIOUS PATIENTS., Int. J. of Adv. Res., 5 (12), 849-855, ISSN 2320-5407. DOI: https://doi.org/10.21474/IJAR01/6029

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Ali Gür
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