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Year : 2019  |  Volume : 22  |  Issue : 11  |  Page : 1570-1575

Transorbital sonographic measurement of optic nerve sheath diameter among HIV-Positive patients in Northwestern Nigeria

1 Department of Ophthalmology, Bayero University/Aminu Kano Teaching Hospital, Kano, Nigeria
2 Department of Radiology, Bayero University/Aminu Kano Teaching Hospital, Kano, Nigeria

Correspondence Address:
Dr. M A Suwaid
Department of Radiology, Bayero University/Aminu Kano Teaching Hospital, Kano
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/njcp.njcp_622_18

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Background: Human immunodeficiency virus (HIV) is a pandemic disease affecting all regions across the globe and Nigeria having the second highest prevalence worldwide. Highly active antiretroviral therapy (HAART) has profound negative effect on the optic nerve even though (HAART) has improved the health status of the affected individuals and overall reduction in mortality. Imaging modality especially ultrasound has a great role in the assessment of the optic nerve because of its availability, affordability, and easy operability with reliable sensitivity. Subjects and Methods: This cross-sectional study was conducted at the Department of Radiology and Ophthalmology, AKTH, Kano, from October 2017 to June 2018. A total of 143 consenting HIV-positive adults age 18–60 years on HAART were recruited. Optic nerve sheath diameter (ONSD) of each eye was measured using 11–14 MHz linear transducer. Ethical approval was obtained from the ethic and research committee of the hospital. Results: The mean ONSD value of the right eye was 3.49 mm ± 1.04 standard deviation (SD) and 3.55 mm ± 1.11 SD for the left eye. The optic nerve diameter was found to be larger on the left eye and increased slightly with age (P < 0.05). There was nonsignificantly higher values of ONSD among female (3.59 mm ± 1.12 SD) when compared with males (3.332 mm ± 0.878) with P value >0.005. Conclusion: ONSD values among HIV-positive patients are significantly higher in the left eye and among female subjects. Also, patients with HIV on HAART have thicker optic nerves when compared with general population in Kano, Nigeria.

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