Role of the Vitreous in Central Retinal Vein Occlusion

Hikichi, Taiichi; Konno, Suguru; Trempe, Clement L.

doi:10.1097/00006982-199515010-00006

Cited by 83 publications

(68 citation statements)

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“…Non-ischemic CRVO constituted 81 % of 620 CRVO patients (Hayreh, 1994). In another study, 66 % of CRVO were of the non-ischemic type (Hikichi et al, 1995). However, the majority of the cases with CRVO were of the ischemic type (66.2 %) in our study.…”

Section: Resultscontrasting

confidence: 55%

Clinico-epidemiological characteristics of central retinal vein occlusion in a tertiary level eye care center of Nepal

Shrestha

Byanju²,

Bhattarai

et al. 2014

Nep J Oph

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Background: Central retinal vein occlusion (CRVO) is one of the common retinal disorders causing severe visual impairment. Objective: To study the clinical profile, risk factors and visual outcome in central retinal vein occlusion. Materials and methods: Seventy-four eyes of 74 patients with central retinal vein occlusion were retrospectively enrolled during the period of one year. All the patients in the study were classified with regard to their ischemic status into two groups, ischemic CRVO and non-ischemic CRVO. The demographic pattern of the patients was recorded. The other parameters studied were visual acuity, history of glaucoma, hypertension, diabetes mellitus and hyperlipidemia. The patients were followed up at 1 month, 3 months and 6 months after treatment.Results: The majority of the patients (n = 49, 66.2 %) had the ischemic type of CRVO, whereas, 25 (33.8 %) of them had the non-ischemic type. The CRVO was more commonly observed in males in both the groups. Hypertension was the most common risk factor associated with CRVO. The visual improvement was significantly better in non-ischemic CRVO (RR = 0.04, 95% CI = 0.01 -0.31, p = 0.000). Conclusion:The CRVO was more common in males than in females. It was associated with systemic hypertension. The ischemic type of the CRVO was more prevalent than the non-ischemic one in this study. Visual outcome was better in the non-ischemic CRVO.

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Section: Resultscontrasting

confidence: 55%

Clinico-epidemiological characteristics of central retinal vein occlusion in a tertiary level eye care center of Nepal

Shrestha

Byanju²,

Bhattarai

et al. 2014

Nep J Oph

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“…A new surgical approach was introduced in 1988 by Osterloh and Charles [9] by dissecting the common adventitial sheath at the level of the arteriovenous crossing, where the thickened artery is supposed to exert compression onto the vein, leading to turbulence downstream in the venous flow, endothelial damage and sometimes secondary thrombosis. By releasing the vein from the presumed compression by the artery, this surgical procedure aims to re-establish normal blood flow in the retinal venous sector.…”

Section: Introductionmentioning

confidence: 99%

Management of branch retinal vein occlusion with vitrectomy and arteriovenous adventitial sheathotomy, the possible role of surgical posterior vitreous detachment

Charbonnel

Glacet–Bernard

Korobelnik

et al. 2003

Graefe's Arch Clin Exp Ophthalmol

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“…Some authors have suggested the important role of posterior hyaloid acting as a scaffold for new vessel formation and favoring macular edema as well (Akiba et al 1990;Nasrallah et al 1988). Several reports have suggested that PVD may protect the ischemic eye from the development of both conditions (Akiba et al 1990;Hikichi et al 1995). An intravitreal gas bubble is known to cause PVD in rabbits and primates, and it has been used as a treatment for macular holes in human beings (Chan et al 1995).…”

mentioning

confidence: 99%

Induced posterior vitreous detachment by intravitreal sulfur hexafluoride (SF6) injection in patients with nonproliferative diabetic retinopathy

Ochoa-Contreras

Delsol‐Coronado

Buitrago

et al. 2000

Acta Ophthalmologica Scandinavica

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ABSTRACT.Purpose: To induce posterior vitreous detachment (PVD) in patients with nonproliferative diabetic retinopathy (NPDR) by injecting an intravitreal gas bubble of SF6 and to compare the evolution of the diabetic retinopathy between eyes with gas induced PVD and non-injected eyes without PVD. Methods: An intravitreal gas bubble of SF6 was injected via the pars plana in twelve eyes of twelve patients with NPDR and no previous PVD. Subsequent clinical, ultrasonographic and angiographic controls were performed to evaluate the development of PVD and progression of the disease. Results: All gas-injected eyes developed PVD. All eyes with induced PVD (treatment group) remained stable without progression of the retinopathy after 2 years of follow up. In the control group (contralateral eyes without PVD), two eyes (16.6%) progressed to proliferative diabetic retinopathy (PDR) (pΩ 0.23); five (41.6%) showed progression to more severe stages of NPDR (pΩ 0.01) and another 41.6% of such eyes remained stable. Conclusions: Intravitreal SF6 injection induced PVD in all eyes of our study without undesirable side effects. Further studies are necessary to make conclusions regarding the correlation between the presence of induced PVD and the progression of diabetic retinopathy.Key words: posterior vitreous detachment (PVD) -sulfur hexafluoride (SF6) -intravitreal gas bubble -diabetic retinopathy.

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Role of the Vitreous in Central Retinal Vein Occlusion

Cited by 83 publications

References 0 publications

Clinico-epidemiological characteristics of central retinal vein occlusion in a tertiary level eye care center of Nepal

Clinico-epidemiological characteristics of central retinal vein occlusion in a tertiary level eye care center of Nepal

Management of branch retinal vein occlusion with vitrectomy and arteriovenous adventitial sheathotomy, the possible role of surgical posterior vitreous detachment

Induced posterior vitreous detachment by intravitreal sulfur hexafluoride (SF6) injection in patients with nonproliferative diabetic retinopathy

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