Incidence of and risk factors for chloroquine and hydroxychloroquine retinopathy in Thai rheumatologic patients

Nuanpan Tangtavorn, Yosanan Yospaiboon, Tanapat Ratanapakorn, Suthasinee Sinawat, Thuss Sanguansak, Chavakij Bhoomibunchoo, Wipada Laovirojjanakul KKU Eye Center, Department of Ophthalmology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand Objective: To study the incidences of and r...

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Autores principales:	Tangtavorn N, Yospaiboon Y, Ratanapakorn T, Sinawat S, Sanguansak T, Bhoomibunchoo C, Laovirojjanakul W
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2016
Materias:	chloroquine hydroxychloroquine retinopathy incidence risk factors Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/b2dc6fe31f454fb080074e03705274dd
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spelling	oai:doaj.org-article:b2dc6fe31f454fb080074e03705274dd2021-12-02T03:50:37ZIncidence of and risk factors for chloroquine and hydroxychloroquine retinopathy in Thai rheumatologic patients1177-5483https://doaj.org/article/b2dc6fe31f454fb080074e03705274dd2016-11-01T00:00:00Zhttps://www.dovepress.com/incidence-of-and-risk-factors-for-chloroquine-and-hydroxychloroquine-r-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Nuanpan Tangtavorn, Yosanan Yospaiboon, Tanapat Ratanapakorn, Suthasinee Sinawat, Thuss Sanguansak, Chavakij Bhoomibunchoo, Wipada Laovirojjanakul KKU Eye Center, Department of Ophthalmology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand Objective: To study the incidences of and risk factors for chloroquine (CQ) and hydroxychloroquine (HCQ) retinopathy in Thai rheumatologic patients. Methods: A retrospective cohort study of 234 rheumatologic patients receiving either CQ or HCQ was conducted. Patients were divided based on whether or not they developed retinopathy as retinopathy-positive or negative groups. Medical records giving details regarding age, gender, body weight, underlying diseases, daily doses, and cumulative doses of CQ or HCQ were reviewed. CQ and HCQ retinopathy were diagnosed by indirect ophthalmoscopy, Humphrey visual field test, and optical coherence tomography. The main outcome measures were incidences and risk factors of CQ and HCQ retinopathy. Results: The CQ retinopathy was detected in 14 of 173 patients (8.09%) who received CQ for 139–2,033 days, cumulative doses from 14.3 to 325.1 g, and daily doses from 0.8 to 18.5 mg/kg/d. Their ages ranged from 27 to 65 years. When compared to the CQ retinopathy-negative group, only age, body weight, and cumulative dose showed statistically significant differences. The HCQ retinopathy-positive group was comprised of 2 of 61 patients (3.28%) who received HCQ for 660–828 days, cumulative doses from 80 to 130 g, and daily dose from 1.9 to 4.4 mg/kg/d. Their ages were 36 and 39 years. Compared to the HCQ retinopathy-negative group, there were no statistically significant differences in studied risk factors. Conclusion: Incidences of and risk factors for CQ and HCQ retinopathy were reported. Since most patients developed retinopathy earlier than 5 years, it is suggested that patients taking long-term CQ or HCQ should undergo ophthalmologic screening annually after the baseline examination. Keywords: chloroquine, hydroxychloroquine, retinopathy, incidence, risk factorsTangtavorn NYospaiboon YRatanapakorn TSinawat SSanguansak TBhoomibunchoo CLaovirojjanakul WDove Medical Pressarticlechloroquinehydroxychloroquineretinopathyincidencerisk factorsOphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 10, Pp 2179-2185 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	chloroquine hydroxychloroquine retinopathy incidence risk factors Ophthalmology RE1-994
spellingShingle	chloroquine hydroxychloroquine retinopathy incidence risk factors Ophthalmology RE1-994 Tangtavorn N Yospaiboon Y Ratanapakorn T Sinawat S Sanguansak T Bhoomibunchoo C Laovirojjanakul W Incidence of and risk factors for chloroquine and hydroxychloroquine retinopathy in Thai rheumatologic patients
description	Nuanpan Tangtavorn, Yosanan Yospaiboon, Tanapat Ratanapakorn, Suthasinee Sinawat, Thuss Sanguansak, Chavakij Bhoomibunchoo, Wipada Laovirojjanakul KKU Eye Center, Department of Ophthalmology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand Objective: To study the incidences of and risk factors for chloroquine (CQ) and hydroxychloroquine (HCQ) retinopathy in Thai rheumatologic patients. Methods: A retrospective cohort study of 234 rheumatologic patients receiving either CQ or HCQ was conducted. Patients were divided based on whether or not they developed retinopathy as retinopathy-positive or negative groups. Medical records giving details regarding age, gender, body weight, underlying diseases, daily doses, and cumulative doses of CQ or HCQ were reviewed. CQ and HCQ retinopathy were diagnosed by indirect ophthalmoscopy, Humphrey visual field test, and optical coherence tomography. The main outcome measures were incidences and risk factors of CQ and HCQ retinopathy. Results: The CQ retinopathy was detected in 14 of 173 patients (8.09%) who received CQ for 139–2,033 days, cumulative doses from 14.3 to 325.1 g, and daily doses from 0.8 to 18.5 mg/kg/d. Their ages ranged from 27 to 65 years. When compared to the CQ retinopathy-negative group, only age, body weight, and cumulative dose showed statistically significant differences. The HCQ retinopathy-positive group was comprised of 2 of 61 patients (3.28%) who received HCQ for 660–828 days, cumulative doses from 80 to 130 g, and daily dose from 1.9 to 4.4 mg/kg/d. Their ages were 36 and 39 years. Compared to the HCQ retinopathy-negative group, there were no statistically significant differences in studied risk factors. Conclusion: Incidences of and risk factors for CQ and HCQ retinopathy were reported. Since most patients developed retinopathy earlier than 5 years, it is suggested that patients taking long-term CQ or HCQ should undergo ophthalmologic screening annually after the baseline examination. Keywords: chloroquine, hydroxychloroquine, retinopathy, incidence, risk factors
format	article
author	Tangtavorn N Yospaiboon Y Ratanapakorn T Sinawat S Sanguansak T Bhoomibunchoo C Laovirojjanakul W
author_facet	Tangtavorn N Yospaiboon Y Ratanapakorn T Sinawat S Sanguansak T Bhoomibunchoo C Laovirojjanakul W
author_sort	Tangtavorn N
title	Incidence of and risk factors for chloroquine and hydroxychloroquine retinopathy in Thai rheumatologic patients
title_short	Incidence of and risk factors for chloroquine and hydroxychloroquine retinopathy in Thai rheumatologic patients
title_full	Incidence of and risk factors for chloroquine and hydroxychloroquine retinopathy in Thai rheumatologic patients
title_fullStr	Incidence of and risk factors for chloroquine and hydroxychloroquine retinopathy in Thai rheumatologic patients
title_full_unstemmed	Incidence of and risk factors for chloroquine and hydroxychloroquine retinopathy in Thai rheumatologic patients
title_sort	incidence of and risk factors for chloroquine and hydroxychloroquine retinopathy in thai rheumatologic patients
publisher	Dove Medical Press
publishDate	2016
url	https://doaj.org/article/b2dc6fe31f454fb080074e03705274dd
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Incidence of and risk factors for chloroquine and hydroxychloroquine retinopathy in Thai rheumatologic patients

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