Aggravated capillary non-perfusion after intravitreal bevacizumab for macular edema secondary to systemic lupus erythematosus and anti-phospholipid syndrome

[Clinical and immunological characteristics of systemic lupus erythematosus with retinopathy]

OBJECTIVE

To investigate the clinical and immunological characteristics of systemic lupus erythematosus (SLE) with retinopathy.

METHODS

Fifty SLE patients with retinopathy without hypertension and diabetes (retinopathy group) who were hospitalized in the Peking University People's Hospital from January 2009 to July 2022 were screened. Fifty SLE patients without blurred vision during the course of the SLE and without retinopathy in the fundus examinations (non-retinopathy group) matched for sex and age were selected. Their clinical manifestations, laboratory tests and lymphocyte subsets were statistically analyzed.

RESULTS

The most common fundus ocular change of the SLE patients with retinopathy was cotton-wool spots (33/50, 66.0%), followed by intraretinal hemorrhage (31/50, 62.0%). Retinopathy could occur at any stage of SLE duration, with a median of 1 year (20 days to 30 years). The proportion of lupus nephritis (72.0% vs. 46.0%, P=0.008) and serositis (58.0% vs. 28.0%, P=0.002) in the retinopathy group were significantly higher than those in the non-retinopathy group. The proportion of neuropsychiatric systemic lupus erythematosus (NPSLE) in the retinopathy group was higher, but there was no significant difference between the two groups. Compared with the non-retinopathy group, the proportion of positive anti-cardiolipin antibody (30.0% vs. 12.0%, P=0.027), the SLEDAI score (median 22.0 vs. 10.5, P < 0.001), erythrocyte sedimentation rate (P < 0.001), C-reactive protein (P=0.019) and twenty-four hours urine total protein level (P=0.026) in the retinopathy group were significantly higher, and the hemoglobin level was significantly lower [(91.64±25.18) g/L vs. (113.96±18.57) g/L, P < 0.001]. The proportion of CD19⁺ B cells in peripheral blood of the patients with SLE retinopathy was significantly increased (P=0.010), the proportion of CD4⁺ T cells was significantly decreased (P=0.025) and the proportion of natural killer (NK) cells was lower (P=0.051) when compared with the non-retinopathy group.

CONCLUSION

Retinopathy in SLE suggests a higher activity of SLE disease with more frequent hematologic and retinal involvement. It is recommended to perform fundus examination as soon as a patient is diagnosed with SLE. SLE patients with retinopathy may have stronger abnormal proliferation of B cells, and aggressive treatment should be applied to prevent other important organs involvement.

Retinal vasculopathy in patients with systemic lupus erythematosus

A retrospective case control study was conducted in the Peking Union Medical College Hospital. Medical records were reviewed for demographic data, clinical features, laboratory results, systemic lupus erythematosus (SLE) disease activity evaluations, and ophthalmic examinations to investigate the clinical characteristics and significance of retinal vasculopathy (RV) in Chinese patients with systemic lupus erythematosus. The prevalence of RV was approximately 0.66% (35/5298) in SLE patients. A total of 60 eyes were involved. The ocular presentations included decrease of visual acuity (48/60, 80%), visual field loss (7/60, 11.7%), and diplopia (3/60, 5%). Ophthalmic fundoscopic examination revealed cotton-wool spots (30/60, 50%), retinal vascular attenuation (31/60, 51.6%), and hemorrhages (41/60, 68.3%). Retinal angiogram showed that 72.7% (16/22) eyes had vaso-occlusion. The ophthalmic episodes could occur at any stage of SLE duration, with a median of 12 months (0-168 months) following SLE onset. Twenty-one (35%) eyes did not recover, or even worsened, during hospital stay. RV was found to be significantly associated with neuropsychiatric lesions (51.4% vs. 21.3%, p = .005) and hematological disturbance (62.9% vs. 34.3%, p = .005). SLE patients with RV had significantly higher SLE disease activity index scores than controls (19.9 ± 0.9 vs. 10.2 ± 0.7, p < .001). An inverse association of anti-SSA antibody with RV was detected (34.3% vs. 67.1%, p = .001). Nervous system disturbance (odds ratio (OR) = 4.340, 95% confidence interval (CI) 1.438, 13.094, p = .009) and leukocytopenia (OR = 6.385, 95% CI 1.916, 21.278, p = .003) were independent risk factors, while anti-SSA antibody positivity (OR = 0.249, 95% CI 0.087, 0.710, p = .009) was a protective factor for RV in SLE patients. In certain cases, RV is a threatening condition for SLE patients presenting with clinical ocular manifestations. Ophthalmo-fundoscopic detection is recommended as soon as SLE is diagnosed.

Ischemic retinal vasculitis and its management

Ischemic retinal vasculitis is an inflammation of retinal blood vessels associated with vascular occlusion and subsequent retinal hypoperfusion. It can cause visual loss secondary to macular ischemia, macular edema, and neovascularization leading to vitreous hemorrhage, fibrovascular proliferation, and tractional retinal detachment. Ischemic retinal vasculitis can be idiopathic or secondary to systemic disease such as in Behçet's disease, sarcoidosis, tuberculosis, multiple sclerosis, and systemic lupus erythematosus. Corticosteroids with or without immunosuppressive medication are the mainstay treatment in retinal vasculitis together with laser photocoagulation of retinal ischemic areas. Intravitreal injections of bevacizumab are used to treat neovascularization secondary to systemic lupus erythematosus but should be timed with retinal laser photocoagulation to prevent further progression of retinal ischemia. Antitumor necrosis factor agents have shown promising results in controlling refractory retinal vasculitis excluding multiple sclerosis. Interferon has been useful to control inflammation and induce neovascular regression in retinal vasculitis secondary to Behçet's disease and multiple sclerosis. The long term effect of these management strategies in preventing the progression of retinal ischemia and preserving vision is not well understood and needs to be further studied.

Ocular manifestations of systemic lupus erythematosus: a review of the literature

About one-third of patients suffering from systemic lupus erythematosus have ocular manifestations. The most common manifestation is keratoconjunctivitis sicca. The most vision threatening are retinal vasculitis and optic neuritis/neuropathy. Prompt diagnosis and treatment of eye disease is paramount as they are often associated with high levels of systemic inflammation and end-organ damage. Initial management with high-dose oral or IV corticosteroids is often necessary. Multiple "steroid-sparing" treatment options exist with the most recently studied being biologic agents.