Extreme Interocular Asymmetry in an Atypical Case of a Hydroxychloroquine-Related Retinopathy

<i>Background and Objectives</i>: Long-term hydroxychloroquine (HCQ) therapy can lead to retinal toxicity. Typically, it is characterized by a bull’s eye maculopathy. More recently, a “pericentral” form of HCQ retinopathy that predominantly affects patients of Asian descent has been desc...

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Main Authors: Gabriel Hallali, Zari Seyed, Anne-Véronique Maillard, Karima Drine, Laurence Lamour, Céline Faure, Isabelle Audo
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Medicina
Subjects:
Online Access:https://www.mdpi.com/1648-9144/58/7/967
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author Gabriel Hallali
Zari Seyed
Anne-Véronique Maillard
Karima Drine
Laurence Lamour
Céline Faure
Isabelle Audo
author_facet Gabriel Hallali
Zari Seyed
Anne-Véronique Maillard
Karima Drine
Laurence Lamour
Céline Faure
Isabelle Audo
author_sort Gabriel Hallali
collection DOAJ
description <i>Background and Objectives</i>: Long-term hydroxychloroquine (HCQ) therapy can lead to retinal toxicity. Typically, it is characterized by a bull’s eye maculopathy. More recently, a “pericentral” form of HCQ retinopathy that predominantly affects patients of Asian descent has been described. To our knowledge, this is the first reported case where such an asymmetry between the right and the left eye in the toxicity profile is observed. <i>Case presentation</i>: The patient presented with a 12-year exposure to HCQ at a daily dose of 4.35 mg/kg. She presented an inferior pericentral-only phenotype of HCQ toxicity on the right eye and a perifoveal-only toxicity on the left eye. Modest progression of toxicity was observed on both eyes over the seven years of follow-up, despite drug discontinuation. <i>Conclusions</i>: To our knowledge, this is the first time that two different phenotypes of HCQ-related retinopathy are found in the same patient, challenging our understanding of the pathophysiology of HCQ retinal toxicity.
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spelling doaj.art-1b6a46aa291e4c1886e74cc0c7188b8c2023-11-30T21:25:38ZengMDPI AGMedicina1010-660X1648-91442022-07-0158796710.3390/medicina58070967Extreme Interocular Asymmetry in an Atypical Case of a Hydroxychloroquine-Related RetinopathyGabriel Hallali0Zari Seyed1Anne-Véronique Maillard2Karima Drine3Laurence Lamour4Céline Faure5Isabelle Audo6Ophthalmic Pediatric Unit, Centre Hospitalier National d’Ophtalmologie des Quinze-Vingts, 28 rue de Charenton, F-75012 Paris, FranceElectrophysiology Unit, Centre Hospitalier National d’Ophtalmologie des Quinze-Vingts, 28 rue de Charenton, F-75012 Paris, FranceElectrophysiology Unit, Centre Hospitalier National d’Ophtalmologie des Quinze-Vingts, 28 rue de Charenton, F-75012 Paris, FranceElectrophysiology Unit, Centre Hospitalier National d’Ophtalmologie des Quinze-Vingts, 28 rue de Charenton, F-75012 Paris, FranceElectrophysiology Unit, Centre Hospitalier National d’Ophtalmologie des Quinze-Vingts, 28 rue de Charenton, F-75012 Paris, FranceElectrophysiology Unit, Centre Hospitalier National d’Ophtalmologie des Quinze-Vingts, 28 rue de Charenton, F-75012 Paris, FranceOphthalmic Pediatric Unit, Centre Hospitalier National d’Ophtalmologie des Quinze-Vingts, 28 rue de Charenton, F-75012 Paris, France<i>Background and Objectives</i>: Long-term hydroxychloroquine (HCQ) therapy can lead to retinal toxicity. Typically, it is characterized by a bull’s eye maculopathy. More recently, a “pericentral” form of HCQ retinopathy that predominantly affects patients of Asian descent has been described. To our knowledge, this is the first reported case where such an asymmetry between the right and the left eye in the toxicity profile is observed. <i>Case presentation</i>: The patient presented with a 12-year exposure to HCQ at a daily dose of 4.35 mg/kg. She presented an inferior pericentral-only phenotype of HCQ toxicity on the right eye and a perifoveal-only toxicity on the left eye. Modest progression of toxicity was observed on both eyes over the seven years of follow-up, despite drug discontinuation. <i>Conclusions</i>: To our knowledge, this is the first time that two different phenotypes of HCQ-related retinopathy are found in the same patient, challenging our understanding of the pathophysiology of HCQ retinal toxicity.https://www.mdpi.com/1648-9144/58/7/967hydroxychloroquinehydroxychloroquine toxicity screeningbull’s eye maculopathyparafoveal retinal hydroxychloroquine toxicitypericentral retinal hydroxychloroquine toxicity
spellingShingle Gabriel Hallali
Zari Seyed
Anne-Véronique Maillard
Karima Drine
Laurence Lamour
Céline Faure
Isabelle Audo
Extreme Interocular Asymmetry in an Atypical Case of a Hydroxychloroquine-Related Retinopathy
Medicina
hydroxychloroquine
hydroxychloroquine toxicity screening
bull’s eye maculopathy
parafoveal retinal hydroxychloroquine toxicity
pericentral retinal hydroxychloroquine toxicity
title Extreme Interocular Asymmetry in an Atypical Case of a Hydroxychloroquine-Related Retinopathy
title_full Extreme Interocular Asymmetry in an Atypical Case of a Hydroxychloroquine-Related Retinopathy
title_fullStr Extreme Interocular Asymmetry in an Atypical Case of a Hydroxychloroquine-Related Retinopathy
title_full_unstemmed Extreme Interocular Asymmetry in an Atypical Case of a Hydroxychloroquine-Related Retinopathy
title_short Extreme Interocular Asymmetry in an Atypical Case of a Hydroxychloroquine-Related Retinopathy
title_sort extreme interocular asymmetry in an atypical case of a hydroxychloroquine related retinopathy
topic hydroxychloroquine
hydroxychloroquine toxicity screening
bull’s eye maculopathy
parafoveal retinal hydroxychloroquine toxicity
pericentral retinal hydroxychloroquine toxicity
url https://www.mdpi.com/1648-9144/58/7/967
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