Clinically effective concentration and risk of hydroxychloroquine retinopathy in Systemic Lupus Erythematosus : Walking on a thin line

2021 ◽  
Author(s):  
Samuel Bitoun ◽  
Gaétane Nocturne ◽  
Raphaèle Seror ◽  
Xavier Mariette
2021 ◽  
Vol 14 (1) ◽  
pp. e237243
Author(s):  
Diogo Hipolito-Fernandes ◽  
Maria Elisa Luís ◽  
Rita Flores ◽  
Rita Anjos

Subretinal fluid accumulation in a patient with systemic lupus erythematosus (SLE) may represent a diagnostic challenge. We present a case of a 43-year-old man with baseline diagnosis of SLE and hydroxychloroquine-associated maculopathy who reported progressive vision loss on the right eye, associated with corticosteroids use for an arthritic crisis. Ophthalmological examination did not reveal any acute finding. On optical coherence tomography, subretinal fluid in the perifoveal area was visible on the right eye, with corresponding enlargement of the visual field defect. An increased choroidal thickness was also visible. Fluorescein angiography revealed, on the right eye, two pinpoint areas of leakage and indocyanine green angiography signs of choroidal vascular hyperpermeability. Considering a diagnosis of a non-central central serous chorioretinopathy, corticosteroids use was interrupted, with resolution of the subretinal fluid. This case illustrates the relevance of a multimodal imaging approach to guide the diagnosis of patient with an SLE with subretinal fluid.


2021 ◽  
Vol 33 (1) ◽  
Author(s):  
Mohammed Salah Eldin Abdelbaky ◽  
Tarek Ahmad El Mamoun ◽  
Fatma Ibrahim Mabrouk ◽  
Rasha Mohamad Hassan

Abstract Background Hydroxychloroquine (HCQ) is an antimalarial drug, recently used in COVID-19 treatment. Also it is considered over many years the cornerstone in treating systemic lupus erythematosus (SLE) in adults and children. The incidence of retinal affection and retinal toxicity from hydroxychloroquine is rare, but even after the HCQ is stopped, loss of vision may not be reversible and may continue to progress. Fundus autofluorescence (FAF) is one of the screening methods recommended by AAO used for the diagnosis of hydroxychloroquine retinopathy. Our aim is to detect early HCQ-induced retinopathy among SLE patients and the risk factors for its development by using fundus autofluorescence. Results In the present study, 11.3% of the studied patients had significant visual field changes upon testing. Of those, 6.3% had abnormal fundus autofluorescence. We found a significant statistical relation between hydroxychloroquine retinopathy and the duration and cumulative dose of hydroxychloroquine therapy (p value = 0.003) and decreased best-corrected visual acuity of both eyes (p value = 0.000). There was no relationship between HCQ retinopathy detected by fundus autofluorescence and daily dose of HCQ/kg, age, sex, and SLEDAI score. Conclusion Frequency of SLE patients who had confirmed HCQ-induced retinopathy was 6.3%. Hydroxychloroquine could be safely used in all SLE patients regardless of age, sex, and SLE activity. Routine ophthalmological assessment is recommended for SLE patients who received HCQ especially for those who received HCQ longer than 7 years. Fundus autofluorescence is a modern objective tool which is specific for the early detection of HCQ retinopathy.


2018 ◽  
Vol 136 (1) ◽  
pp. 95-96
Author(s):  
Nilufer Yesilirmak ◽  
Hande Husniye Telek ◽  
Gulten Sungur ◽  
Yaprak Ozdemir ◽  
Nesibe Karahan Yesil ◽  
...  

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1025.2-1026
Author(s):  
Z. Osmani ◽  
A. Cornet ◽  
W. Zacouris-Verweij ◽  
S. Frankel

Background:Long-term use of hydroxychloroquine (HCQ) is very common in patients with lupus erythematosus. It has been associated with wide-ranging benefits and it is generally well tolerated1. However, long-term use (i.e. > 5 years) and high-dose HCQ (i.e. > 5 mg/kg/day) are both considered to be risk factors for developing HCQ retinopathy2.Advances in our understanding of HCQ retinopathy has led to changes in the recommendations for HCQ dosing and retinopathy screening1-3. The latest EULAR guidelines for the management of systemic lupus erythematosus (SLE)4recommend a maximum HCQ dose of 5 mg/kg/day and ophthalmological screening at baseline and annually after 5 years of HCQ treatment.Objectives:To assess whether recent EULAR guidelines regarding HCQ dosing and retinopathy screening are affecting prescription patterns and screening frequencies in Europe.Methods:Patients in Europe were given the opportunity to complete the online European Survey for Lupus Patients (ESLP) initiated by LUPUS EUROPE. The survey was promoted on social media from the 26thof June – 11thof July 2019. The survey consisted of 29 questions. Each participant was asked, among other things, to report their body weight (kg), daily HCQ dose and if they have received baseline screening and/or regular eye examinations.Results:The online survey was completed by 2938 lupus patients from 36 countries. The majority were female (86.5%) and diagnosed with SLE (85.7%). The daily HCQ dose (mg/kg) was available from 1678 patients (57.1%). The median ± IQR HCQ dose was 4.3 ± 2.5 mg/kg/day with a median treatment duration of 7 years (IQR: 3 – 14).The recommended daily HCQ dose of 5 mg/kg was exceeded by 618 patients (36.8%). Low HCQ dose (≤ 4 mg/kg) was reported by 769 patients (45.8%). In addition, 284 out of 1786 patients (15.9%) reported they skipped HCQ once a week or more often. Nevertheless, only 8.7% of patients reported that they were more likely to skip HCQ than other medication. Patients from Belgium, Israel, France and Portugal reported the highest HCQ dosages. In contrast, patients from Spain reported the lowest HCQ dosages (Figure 1).Figure 1.HCQ dose (mg/kg/day) reported by patients (• median HCQ dose). PRT: Portugal, POL: Poland, NLD: Netherlands, ITA: Italy, ISR: Israel, GRC: Greece, FRA: France, FIN: Finland, ESP: Spain, DEU: Germany, CHE: Switzerland, BEL: Belgium.Moreover, 935 out of 1137 patients diagnosed in the past 10 years (82.2%) reported that they have received an ophthalmological screening at baseline. Lastly, 1167 patients reported long-term use of HCQ (i.e. ≥ 5 years). Only about 64% of them (n=748) reported that they receive regular eye examinations (i.e. at least once every year).Conclusion:Studies have suggested that prescription patterns in the USA and UK were already affected by guidelines regarding HCQ dosing1. We show large inter- and intra-country variations of HCQ dosing in Europe. Additionally, most centers fail to follow recent recommendations4regarding annual screening of retinopathy in case of long-term HCQ use.More research is needed to assess the clinical efficacy of low-dose HCQ and to confirm whether proper screening modalities are being employed as recommended by recent guidelines2-4.References:[1]Jorge A et al. Hydroxychloroquine retinopathy - implications of research advances for rheumatology care. Nat Rev Rheumatol. 2018 Dec; 14(12): 693-703.[2]Michael F. Marmor et al, 2016, Recommendations on Screening for Chloroquine and Hydroxychloroquine Retinopathy (2016 Revision). Ophthalmology. 123(6): 1386-94.[3]Imran H. Yusuf et al. The Royal College of Ophthalmologists recommendations on screening for hydroxychloroquine and chloroquine users in the United Kingdom: executive summary. Eye (Lond). 2018 Jul; 32(7): 1168–1173.[4]Fanouriakis A et al. 2019 update of the EULAR recommendations for the management of systemic lupus erythematosus. Ann Rheum Dis. 2019 Jun; 78(6): 736-745.Disclosure of Interests:None declared


Author(s):  
Francis R. Comerford ◽  
Alan S. Cohen

Mice of the inbred NZB strain develop a spontaneous disease characterized by autoimmune hemolytic anemia, positive lupus erythematosus cell tests and antinuclear antibodies and nephritis. This disease is analogous to human systemic lupus erythematosus. In ultrastructural studies of the glomerular lesion in NZB mice, intraglomerular dense deposits in mesangial, subepithelial and subendothelial locations were described. In common with the findings in many examples of human and experimental nephritis, including many cases of human lupus nephritis, these deposits were amorphous or slightly granular in appearance with no definable substructure.We have recently observed structured deposits in the glomeruli of NZB mice. They were uncommon and were found in older animals with severe glomerular lesions by morphologic criteria. They were seen most commonly as extracellular elements in subendothelial and mesangial regions. The deposits ranged up to 3 microns in greatest dimension and were often adjacent to deposits of lipid-like round particles of 30 to 250 millimicrons in diameter and with amorphous dense deposits.


2000 ◽  
Vol 6 (7) ◽  
pp. 821-825 ◽  
Author(s):  
ELIZABETH LERITZ ◽  
JASON BRANDT ◽  
MELISSA MINOR ◽  
FRANCES REIS-JENSEN ◽  
MICHELLE PETRI

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