Assesment of Optic Nerve Sheath Diameter in Healthy Adults in Turkey

Abstract

Introduction: In this study, we aimed to investigate how the normal values of optic nerve sheath diameter are distributed in normal healthy volunteers in Turkish population. Materials and Methods: This prospective study was planned between November 15, 2019 and April 15, 2020. The study included 160 healthy volunteers who were over 18 years of age and didn’t have acute and chronic systemic disorders. The optic nerve sheath diameters (ONSD) of the subjects were measured from both eyes ultrasonographically. Results: ONSD means (median, IQR) of right and left eyes of the subjects were measured as 4.87 (0.41) mm and 4.86 (0.32) mm, respectively. Right and left eye ONSD measurements were detected lower in female gender than men, and this difference was statistically significant. (p = 0.017 and p = 0.031, respectively). Conclusion: Determination of ONSD optimal reference values in healthy individuals would benefit in predicting increase in intracranial pressure in clinical practice.

Keywords

• Optic nerve sheath diameter
• Ultrasonography
• Healthy volunteer

Türkiye'de Sağlıklı Erişkinlerde Optik Sinir Kılıfı Çapının Değerlendirilmesi

Abstract

Amaç: Biz bu çalışmada Türk populasyonundaki normal sağlıklı gönüllülerde optik sinir kılıf çapının normal değerlerinin nasıl dağıldığını araştırmak istedik. Gereç ve Yöntem: Bu prospektif çalışma 15 Kasım 2019 ile 15 Nisan 2020 tarihleri arasında planlandı. Çalışmaya 18 yaş üstü ,akut ve kronik sistemik rahatsızlığı bulunmayan 160 sağlıklı gönüllü dahil edildi. Deneklerin her iki gözden ultrasonografik olarak ONSD’leri ölçüldü. Bulgular: Deneklerin sağ ve sol göz ONSD ortalamaları (median,IQR) sırasıyla 4,87 (0,41) mm ve 4,86 (0,32) mm olarak ölçüldü. Sağ göz ve sol göz ONSD ölçümleri bayan cinsiyette erkelere göre daha düşük saptandı ve bu fark istatiksel olarak anlamlıydı. (p=0,017 ve p=0,031, sırasıyla). Sonuç: Sağlıklı bireylerde ONSD optimal referans değerlerinin belirlenebilmesi klinik pratikte kafa içi basınç artışını öngörmede fayda sağlayacaktır.

Keywords

• optik sinir kılıf çapı
• Ultrasonografi
• Sağlıklı gönüllü

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