Journals / Türk Nöroloji Dergisi / 2019 / Cilt: 25 - Sayı: 1

Analysis of Peripapillary Retinal Nerve Fiber Layer and Macular Volume in Patients with Multiple Sclerosis, Neuromyelitis Optica Spectrum Disorders, and Healthy Controls Using Spectral Domain Optical Coherence Tomography in a Turkish Cohort

Multipl Skleroz, Nöromiyelitis Optika Spektrum Bozuklukları ve Sağlıklı Kontrollerden Oluşan Türk Kohortunda Peripapiller Retina Sinir Lifi Tabakası ve Maküla Hacminin Spektral Optik Koherans Tomografi ile Değerlendirilmesi

Pages
26–31
Publication Date
2022-11-04
DOI
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AI Summary & Key Takeaways

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

Optic neuritis of NMOSD is associated with a thinner average RNFL compared with MS,suggesting earlier axonal injury in the affected optic nerves.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: To compare the peripapillary retinal nerve fiber layer (pRNFL) thickness and macular volume in patients with multiple sclerosis (MS), neuromyelitisoptica spectrum disorders (NMOSD), and healthy controls.Materials and Methods: This study used spectral domain-optical coherence tomography to measure pRNFL and the volume of retinal layers at the macula.Forty patients with MS or NMOSD and 19 healthy controls were enrolled.Results: After at least one clinical episode of optic neuritis, the average pRNFL for NMOSD [60 µm (34-105)] and patients with MS [85 µm (41-109)] werelower than in healthy controls [99 µm (88-109)], and patients with NMOSD had significantly lower pRNFL compared with patients with MS (p=0.002).
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Key Findings & Data:Fovealvolume did not differ between optic neuritis eyes of patients with NMOSD and MS (NMOSD 1.18±0.3 mm3, MS 1.82±2.07 mm3).
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Conclusion & Impact:Optic neuritis of NMOSD is associated with a thinner average RNFL compared with MS,suggesting earlier axonal injury in the affected optic nerves.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: To compare the peripapillary retinal nerve fiber layer (pRNFL) thickness and macular volume in patients with multiple sclerosis (MS), neuromyelitisoptica spectrum disorders (NMOSD), and healthy controls.Materials and Methods: This study used spectral domain-optical coherence tomography to measure pRNFL and the volume of retinal layers at the macula.Forty patients with MS or NMOSD and 19 healthy controls were enrolled.Results: After at least one clinical episode of optic neuritis, the average pRNFL for NMOSD [60 µm (34-105)] and patients with MS [85 µm (41-109)] werelower than in healthy controls [99 µm (88-109)], and patients with NMOSD had significantly lower pRNFL compared with patients with MS (p=0.002). Fovealvolume did not differ between optic neuritis eyes of patients with NMOSD and MS (NMOSD 1.18±0.3 mm3, MS 1.82±2.07 mm3). The mean pRNFL values inseronegative NMOSD eyes [58 µm (range, 47-111)] tended to be thinner compared with seropositive NMOSD eyes [76 µm (range, 42-105)]. This finding wasnot considered to be statistically significant.Conclusion: Our study revealed that both foveal (area in a 1.5 mm ETDRS ring) and total macular volume (area in a 6 mm ETDRS ring) were lower in bothpatients with MS and NMOSD compared with healthy controls. Optic neuritis of NMOSD is associated with a thinner average RNFL compared with MS,suggesting earlier axonal injury in the affected optic nerves.

Özet

Amaç: Multipl skleroz (MS), nöromiyelitis optika spektrum bozuklukları (NMOSB) ve sağlıklı kontrollerde, peripapiller retina sinir lifi tabakası kalınlığı (pRSLT) ve maküla hacminin karşılaştırılmasıdır. Gereç ve Yöntem: Bu çalışmada pRSLT ve maküla hacmini ölçmek için spektral optik koherans tomografi kullanılmıştır. MS veya NMOSB nedeniyle izlenen 40 hasta ve 19 sağlıklı kontrol dahil edilmiştir. Bulgular: Tek bir optik nevrit sonrası ortalama pRSLT’nin NMOSB olanlarda [60 µm (34-105)] ve MS’lerde [85 µm (41-109)], sağlıklı kontrollere göre [99 µm (88-109)] daha düşük olduğu görülmüş ve bunun NMOSB olanlarda MS’lere göre anlamlı düşük olduğu saptanmıştır (p=0,002). Fovea hacmi NMOSB ve MS hastalarının optik nevrit geçiren gözlerinde farklılık göstermemiştir (NMOSB 1,18±0,3 mm3, MS 1,82±2,07 mm3). Ortalama pRSLT kalınlığı seronegatif NMOSB olan grupta [58 µm (47-111)] seropozitif gruba göre [76 µm (42-105)] daha ince olma eğilimde saptanmış olmakla birlikte, bu istatiksel olarak anlamlı bulunmamıştır. Sonuç: Çalışmamızda sağlıklı kontrollere göre NMOSB ve MS’lilerde hem fovea (1,5 mm ETDRS halkası) hem de maküla (6 mm ETDRS halkası) hacminin azaldığı gösterilmiştir. NMOSB optik nevritinin MS ile karşılaştırıldığında, daha ince ortalama RSLT ile ilişkili olduğunu ve etkilenen optik sinirde daha erken aksonal hasar geliştiğini desteklemektedir.

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Cite This Article

ÇOLPAK, A. İ., TUNCER, A., SEVİM, D. G., KADAYIFÇILAR, S., KARABUDAK, R., DİKER, S., KANSU, T. (2022). Analysis of Peripapillary Retinal Nerve Fiber Layer and Macular Volume in Patients with Multiple Sclerosis, Neuromyelitis Optica Spectrum Disorders, and Healthy Controls Using Spectral Domain Optical Coherence Tomography in a Turkish Cohort. Türk Nöroloji Dergisi, Cilt: 25 - Sayı: 1, 26–31. https://ajindex.com/articles/636737

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