Sickle Cell Retinopathy Sickle Cell Term Paper

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Variations of this technique include scatter photocoagulation and feeder vessel photocoagulation. Scatter photocoagulation is efficacious in the treatment for sea fan lesions. The desired outcome of this therapy is extraretinal fibroneovascular tissue regression. Localized scatter photocoagulation treats early proliferative changes. Once neovascularization invades the vitreous, localized scatter photocoagulation is generally less effective. If this technique does not result in regression of proliferative changes, feeder vessel photocoagulation may be used as an adjunct to induce infarction to the remaining sea fans.

Feeder vessel photocoagulation

Obliterating feeder vessels by retinal photocoagulation causes infarction of peripheral neovascular beds. This technique manages proliferative sickle retinopathy effectively, especially in cases where neovascularization persists after extensive scatter photocoagulation treatment 6. Feeder vessel photocoagulation is often complicated by vitreous hemorrhage, retinal detachments, choroidal ischemia, choroidal neovascularization, subretinal hemorrhage and/or fibrosis, or macular pucker and hole formation.

Retinal cryotherapy

Retinal cryotherapy is useful in treating peripheral retinal ischemia as opposed to directly obliterating these neovascular beds. This methodology of "indirect" obliteration of the neovascular bed results in regression of abnormal vessels with minimal complications.

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Cryotherapy often is limited to cases with cloudy ocular media.

Vitrectomy

Vitrectomy is indicated in cases of nonresolving vitreous hemorrhage and retinal detachment (stages IV and V). This procedure relieves the internal tractional forces that act on the retina and facilitate retinal photocoagulation. Complications associated with vitreoretinal surgery are anterior segment ischemia, sickling crisis, optic nerve, and macula infarctions.

Summary

Sickle cell disease is a genetic disorder that manifests itself in all body systems. Although some authors have questioned whether retinopathy is actually a sickle cell trait 9. Surgical treatment is indicated once retinopathy advances to the proliferative stage. Several treatment options may be utilized, but should be chosen to meet the patient's medical history and disease severity......

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"Sickle Cell Retinopathy Sickle Cell" (2004, November 28) Retrieved June 17, 2024, from
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"Sickle Cell Retinopathy Sickle Cell", 28 November 2004, Accessed.17 June. 2024,
https://www.aceyourpaper.com/essays/sickle-cell-retinopathy-sickle-cell-60038
   

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