Hydroxychloroquine retinopathy oct

Discussion in 'Canadian Drug' started by sergicos, 02-Mar-2020.

  1. Goga1974 XenForo Moderator

    Hydroxychloroquine retinopathy oct


    Pattern of Retinopathy: Although the locus of toxic damage is parafoveal in many eyes, Asian patients often show an extramacular pattern of damage. Dose: We recommend a maximum daily HCQ use of 5.0 mg/kg real weight, which correlates better with risk than ideal weight.

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    HCQ is widely used for the treatment of rheumatic diseases, particularly lupus and RA. It is generally well tolerated, but retinopathy is a concern. Retinopathy is rare, but is sight threatening, generally irreversible and may progress even after cessation of therapy. Damage may be subclinical. Hydroxychloroquine HCQ is an anti-malarial medication that has in recent times been utilized as treatment for a variety of autoimmune diseases, such as. Chloroquine and hydroxychloroquine can cause toxic retinopathy due to their binding of melanin in the retinal pigmented epithelium RPE as well as direct toxicity to retinal ganglion cells. Early findings include mottling of the RPE and blunted foveal reflex. As the retinopathy progresses, a bull's-eye maculopathy develops, as seen in these photos.

    Risk of Toxicity: The risk of toxicity is dependent on daily dose and duration of use. There are no similar demographic data for CQ, but dose comparisons in older literature suggest using 2.3 mg/kg real weight.

    Hydroxychloroquine retinopathy oct

    Hydroxychloroquine-related retinal toxicity Rheumatology., Hydroxychloroquine retinopathy A review of imaging - NCBI

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  6. SD-OCT images may have important implications to use as an early indicator of retinal toxicity without any visible signs of hydroxychloroquine retinopathy.

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    Hydroxychloroquine long term i.e. over five years have a baseline examination in a hospital eye department ideally within six months, but definitely within 12 months, of starting therapy with a colour retinal photograph and spectral domain optical coherence tomography SD-OCT scans of the macula. Oct 21, 2010 The use of hydroxychloroquine HCQ, an antimalarial drug utilized for a range of rheumatologic and dermatologic diseases, is associated with a low incidence of retinopathy 0.5% when used at recommended doses 6.5 mg/kg per day. 1 It has largely replaced chloroquine because of decreased ocular toxicity at high dosages, 2 but can still lead to potentially irreversible visual loss. Hydroxychloroquine Retinopathy with SD-OCT Changes and Minimal Fundus Changes. The images shown here refer to the same case as "Hydroxychloroquine Retinopathy with Minimal Fundus Changes". This 68 year old woman with systemic lupus erythematosus had been on hydroxychloroquine at a dosage of 400 mg/d 6.52 mg/kg/d for eight years.

     
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