Journals / MN Oftalmoloji / 2014 / Cilt: 21 - Sayı: 3

Ability of ganglion cell complex parameters determined by spectral domain optical coherence tomography to diagnose glaucoma

Spektral domain optik koherans tomografi ile belirlenen gangliyon hücre kompleksi parametrelerinin glokom tanısındaki yeri

Pages
174–178
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

While diagnosing glaucoma, in- terpreting these parameters together will guide the clinician for early diagnosis and treatment.

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: To evaluate the ability of ganglion cell complex (GCC) parameters determined by spectral-domain optical coherence tomography (OCT) to diagnose glaucoma.
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Key Findings & Data:Material and Method: In this prospective study, 69 eyes with open angle glaucoma and 70 age and sex matched healthy eyes (control group) were assessed.
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Conclusion & Impact:While diagnosing glaucoma, in- terpreting these parameters together will guide the clinician for early diagnosis and treatment.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Aim: To evaluate the ability of ganglion cell complex (GCC) parameters determined by spectral-domain optical coherence tomography (OCT) to diagnose glaucoma. Material and Method: In this prospective study, 69 eyes with open angle glaucoma and 70 age and sex matched healthy eyes (control group) were assessed. Glaucomatous eyes were fur- ther divided into early glaucoma and advanced glaucoma subgroups. Visual field test was per- formed and OCT (RTVue, Optovue) was used to determine GCC thickness, focal loss volume (FLV), global loss volume (GLV), retinal thickness (RT), and retinal nerve fiber layer (RNFL) thickness in all subjects. Sensitivity and specifity of FLV, GLV, GCC/RT ratio and RNFL meas- urements to diagnose glaucoma were calculated. Results: GCC/RT ratio was significantly different between control group, early glaucoma- tous eyes and advanced glaucomatous eyes (p<0.05). The mean FLV was 0.55±0.89%, 1.34± 1.57% and 7.12±5.60% in the control group, early glaucoma group and advanced glaucoma group, respectively, whereas the mean GLV was 3.57±4.49%, 5.36±4.01% and 16.47±12.89%; and the mean RNFL thickness was 107.71±17.10&#956;m, 102.33±10.15&#956;m and 82.87±19.74&#956;m, respectively (all; p<0.05). Of the analyzed parameters, GLV had the highest specifity, and GCC/RT ratio had the highest sensitivity. Conclusions: GCC parameters and GCC/RT ratio determined by spectral-domain OCT showed high sensitivity and specifity in detecting glaucoma. While diagnosing glaucoma, in- terpreting these parameters together will guide the clinician for early diagnosis and treatment.

Özet

Amaç: Spektral domain optik koherans tomografi (OKT) ile belirlenen gangliyon hücre kompleksi (GHK) parametrelerinin glokom tanısı koymadaki kullanılabilirliğini değerlendir- mek. Gereç ve Yöntem: Bu prospektif çalışma kapsamında 69 açık açılı glokomu bulunan göz ile yaş ve cinsiyet uyumlu 70 sağlıklı göz (kontrol grubu) değerlendirildi. Glokomlu olgular er- ken glokomlu gözler ve ileri glokomlu gözler olarak iki alt gruba ayrıldı. Tüm olguların gör- me alanı testleri yapıldı ve OKT (RTVue, Optovue) ile GHK kalınlığı, fokal hacim kaybı (FLV), tüm hacim kaybı (GLV), retina kalınlığı (RK), retina sinir lifi tabakası kalınlığı (RSLT) değer- lendirildi. FLV, GLV, GHK/RK oranı ve RSLT ölçümlerinin glokom tanısı koymadaki duyarlı- lık ve özgüllükleri hesaplandı. Bulgular: GHK/RK oranı kontrol grubu, erken glokomlu gözler ve ileri glokomlu gözlerde anlamlı farklı idi (p<0,05). Kontrol grubu, erken glokomlu gözler ve ileri glokomlu gözlerde ortalama FLV sırası ile %0,55±0,89, %1,34±1,57 ve %7,12±5,60 iken, sırasıyla GLV %3,57± 4,49, %5,36±4,01 ve %16,47±12,89 ve sırasıyla ortalama RSLT kalınlığı 107,71±17,10μm, 102,33±10,15μm ve 82,87±19,74μm idi (hepsi; p<0,05). Bakılan parametrelerden GLV en yüksek özgüllüğe, GHK/RK oranı ise en yüksek duyarlılığa sahip parametrelerdi. Sonuç: Spektral-domain OKT ile belirlenen GHK parametreleri ve GHK/RK oranı glokom tanısında yüksek duyarlılık ve özgüllüğe sahiptir. Glokom tanısı koyarken bu parametrelerin hep birlikte değerlendirilmesi erken tanı ve tedavi için klinisyene yol göstericidir.

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Cite This Article

BAYHAN, S. A., BAYHAN, H. A., MUHAFIZ, E., ADAM, M., GÜRDAL, C. (2014). Ability of ganglion cell complex parameters determined by spectral domain optical coherence tomography to diagnose glaucoma. MN Oftalmoloji, Cilt: 21 - Sayı: 3, 174–178. https://ajindex.com/articles/295622

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