Journals / MN Oftalmoloji / 2005 / Cilt: 12 - Sayı: 1

Pars plana vitrectomy with internal limiting membrane peeling in diabetic macular edema unresponsive to grid laser photocoagulation

Grid lazer fotokoagülasyonu sonrası diyabetik maküla ödemi devam eden olgularda pars plana vitrektomi ve iç limitan membran soyulması

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53–57
DOI
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AI Summary & Key Takeaways

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

However, further studies with a large number of patients are required.

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: To evaluate the effectiveness of pars plana vitrectomy (PPV) with peeling of the internal limiting membrane (ILM) in diabetic macular edema unresponsive to grid laser photocoagulation.
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Key Findings & Data:Material and Method: In this randomized controlled study, 24 eyes of 12 patients with diabetic macular edema unresponsive to grid laser photocoagulation were evaluated.
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Conclusion & Impact:However, further studies with a large number of patients are required.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Vitrektomi · Diabetes mellitus · Işık koagülasyonu

Abstract

Purpose: To evaluate the effectiveness of pars plana vitrectomy (PPV) with peeling of the internal limiting membrane (ILM) in diabetic macular edema unresponsive to grid laser photocoagulation. Material and Method: In this randomized controlled study, 24 eyes of 12 patients with diabetic macular edema unresponsive to grid laser photocoagulation were evaluated. PPV with ILM removal was performed at random in one eye of 12 patients and taken as the study group; while, the untreated fellow eyes were taken as the control group. Main outcome measures were the foveal thickness changes measured with optical coherence tomography, preoperative and postoperative visual acuity. Mann-Whitney U and Wilcoxon tests were used in statistical analysis. Results: Mean age of the patients was 61.8±6 years (range 51 to 74). Mean follow-up was 9±3.1 (range 6 to 12) months. In the study group, mean foveal thickness was 391.7±83.8 mm preoperatively and 241.7±45.2 mm postoperatively (p=0.004). In the control group, mean foveal thickness was 360.9±130.9 mm preoperatively and 323.7±107.6 mm postoperatively (p>0.05). Mean decrease in foveal thickness was 150±100.1 mm in the study group and 37.1±80.9 mm in the control group (p=0.006). In the study group, best-corrected logMAR visual acuity was 0.68±0.39 preoperatively and 0.52±0.41 postoperatively (p>0.05). In the control group, best-corrected logMAR visual acuity was 0.44±0.40 preoperatively and 0.53±0.45 postoperatively (p>0.05). In the study group, visual acuity improved by 2 or more lines in 5 eyes (41.7%) and remained stable in 7 eyes (58.3%). In the control group, visual acuity improved by 2 or more lines in 1 eye (8.3%) and decreased by 2 or more lines in 3 eyes (25%). Conclusion: PPV with ILM peeling was observed to be an effective procedure for treating the macular edema in diabetic patients with refractory macular edema after grid laser photocoagulation. However, further studies with a large number of patients are required.

Özet

Amaç: Grid lazer fotokoagülasyonu sonrası maküla ödeminin devam ettiği diyabetik olgularda pars plana vitrektomi (PPV) ile birlikte iç limitan membran (İLM) soyulmasının etkinliğini araştırmak. Gereç ve Yöntem: Bu randomize kontrollü çalışmada, grid lazer fotokoagülasyonu sonrası bilateral diyabetik maküla ödemi devam eden 12 hastanın 24 gözü değerlendirildi. Hastaların rasgele seçilen bir gözüne PPV ile birlikte İLM soyulması uygulanırken (Çalışma grubu; 12 göz), diğer gözüne hiçbir cerrahi işlemde bulunulmadı (Kontrol grubu). Çalışmada araştırdığımız ana parametreler; optik koherens tomografi ile ölçülen fovea kalınlığı, pre ve postoperatif görme keskinliği idi. İstatistiksel analizlerde Mann-Whitney U ve Wilcoxon testleri kullanıldı. Bulgular: Ortalama 61.8±6 (55-74) yaşında olan hastalar ortalama 9±3.1 ay (6-12 ay) süreyle takip edildiler. Çalışma grubunda fovea kalınlık ortalaması, preoperatif 391.7±83.8 mm iken postoperatif 241.7±45.2 mm idi (p=0.004). Kontrol grubunda fovea kalınlık ortalaması, preoperatif 360.9±130.9 mm iken postoperatif 323.7±107.6 mm idi (p>0.05). Postoperatif olarak, çalışma grubunda fovea kalınlığında ortalama 150±100.1 mm bir azalma olurken, kontrol grubunda fovea kalınlığında ortalama 37.1±80.9 mm azalma oldu (p=0.006). Çalışma grubunda logMAR görme keskinliği preoperatif 0.68±0.39 iken postoperatif 0.52±0.41 idi (p>0.05). Kontrol grubunda logMAR görme keskinliği preoperatif 0.44±0.40 iken postoperatif 0.53±0.45 idi (p>0.05). Çalışma grubunda 5 olguda (%41.7) görme keskinliğinde 2 sıra ve üzerinde bir artış olurken, 7 olguda (%58.3) aynı düzeyde kaldı. Kontrol grubunda ise 1 olguda (%8.3) görme keskinliğinde 2 sıra ve üzerinde bir artış olurken, 3 olguda (%25) 2 sıra ve üzerinde bir azalma oldu. Sonuç: Grid lazer fotokoagülasyonu sonrası maküla ödeminin devam ettiği diyabetik olgularda, PPV ile İLM soyulmasının maküla ödeminin tedavisinde etkin bir yöntem olduğu gözlendi. Ancak, daha çok sayıda olgu içeren çalışmalara gereksinim olduğu düşünüldü.

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Cite This Article

YANYALI, A., HOROZOĞLU, F., ÇELİK, E., NOHUTÇU, A. F. (2005). Pars plana vitrectomy with internal limiting membrane peeling in diabetic macular edema unresponsive to grid laser photocoagulation. MN Oftalmoloji, Cilt: 12 - Sayı: 1, 53–57. https://ajindex.com/articles/296039

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