Hydroxychloroquine Inhibits Cardiac Conduction in Aged Patients with Nonmalaria Diseases

Background: The COVID-19 pandemic has brought increased focus on hydroxychloroquine (HCQ), as doctors, the medical community, and policymakers around the world attempt to understand how the risks of HCQ weigh against unknown benefits. We aim to evaluate the effects of HCQ on cardiac conduction, thus...

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Main Authors: Yanting Yu, Jianteng Xu, Anni Xie, Sijia Liu, Xiaojian Wang, Runzhang Zhu, Xiaoyan Wang
Format: Article
Language:English
Published: Karger Publishers 2021-04-01
Series:Kidney Diseases
Subjects:
Online Access:https://www.karger.com/Article/FullText/515278
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author Yanting Yu
Jianteng Xu
Anni Xie
Sijia Liu
Xiaojian Wang
Runzhang Zhu
Xiaoyan Wang
author_facet Yanting Yu
Jianteng Xu
Anni Xie
Sijia Liu
Xiaojian Wang
Runzhang Zhu
Xiaoyan Wang
author_sort Yanting Yu
collection DOAJ
description Background: The COVID-19 pandemic has brought increased focus on hydroxychloroquine (HCQ), as doctors, the medical community, and policymakers around the world attempt to understand how the risks of HCQ weigh against unknown benefits. We aim to evaluate the effects of HCQ on cardiac conduction, thus contributing to the global understanding of implications of HCQ use. Methods: We reviewed 717 cases of nonmalaria patients treated with HCQ (302) or without HCQ (415) in our hospital from 2008 to 2019, analyzed the cardiac conduction recorded by electrocardiogram (122 vs. 180) including heart rate (HR), PR, and corrected-QT (QTc) intervals, and explored the relationship of cardiac conduction with age, HCQ dosage, HCQ duration, sex, and primary diseases in HCQ users. Results: The all-cause mortality is similar between HCQ and non-HCQ groups (4.0 vs. 4.3%, p = 0.85). Patients aged 45 years or older, not younger ones, have lower HR (80.1 ± 1.7 vs. 85.7 ± 1.8 bpm, p = 0.03) but longer PR (163 ± 3.4 vs. 146.6 ± 4.2 ms, p = 0.003) and QTc (417.8 ± 3.8 vs. 407.7 ± 2.7 ms, p = 0.03) in HCQ than those in non-HCQ. The age in the HCQ group is positively correlated with PR (R = 0.31, p < 0.01) and QTc (R = 0.34, p < 0.01) but not HR. HR, PR, and QTc are not related to HCQ dosage (0.1–0.6 g/day), HCQ duration (0.2–126 months), sex, primary diseases, and repeated exams. Conclusion: Age is the most important risk factor of HCQ on cardiac conduction in nonmalaria patients. Electrocardiogram monitoring is suggested in aged patients due to the effects of HCQ on HR, PR, and QTc.
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spelling doaj.art-0989847419a94e7a8df09e87cee27e2d2022-12-21T21:58:19ZengKarger PublishersKidney Diseases2296-93812296-93572021-04-0111010.1159/000515278515278Hydroxychloroquine Inhibits Cardiac Conduction in Aged Patients with Nonmalaria DiseasesYanting Yu0Jianteng Xu1Anni Xie2Sijia Liu3Xiaojian Wang4Runzhang Zhu5Xiaoyan Wang6Department of Nephrology, Nanjing BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Clinical Laboratory, Nanjing BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Nephrology, Nanjing BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Nephrology, Nanjing BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Nephrology, Nanjing BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Nephrology, Nanjing BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Nephrology, Nanjing BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, ChinaBackground: The COVID-19 pandemic has brought increased focus on hydroxychloroquine (HCQ), as doctors, the medical community, and policymakers around the world attempt to understand how the risks of HCQ weigh against unknown benefits. We aim to evaluate the effects of HCQ on cardiac conduction, thus contributing to the global understanding of implications of HCQ use. Methods: We reviewed 717 cases of nonmalaria patients treated with HCQ (302) or without HCQ (415) in our hospital from 2008 to 2019, analyzed the cardiac conduction recorded by electrocardiogram (122 vs. 180) including heart rate (HR), PR, and corrected-QT (QTc) intervals, and explored the relationship of cardiac conduction with age, HCQ dosage, HCQ duration, sex, and primary diseases in HCQ users. Results: The all-cause mortality is similar between HCQ and non-HCQ groups (4.0 vs. 4.3%, p = 0.85). Patients aged 45 years or older, not younger ones, have lower HR (80.1 ± 1.7 vs. 85.7 ± 1.8 bpm, p = 0.03) but longer PR (163 ± 3.4 vs. 146.6 ± 4.2 ms, p = 0.003) and QTc (417.8 ± 3.8 vs. 407.7 ± 2.7 ms, p = 0.03) in HCQ than those in non-HCQ. The age in the HCQ group is positively correlated with PR (R = 0.31, p < 0.01) and QTc (R = 0.34, p < 0.01) but not HR. HR, PR, and QTc are not related to HCQ dosage (0.1–0.6 g/day), HCQ duration (0.2–126 months), sex, primary diseases, and repeated exams. Conclusion: Age is the most important risk factor of HCQ on cardiac conduction in nonmalaria patients. Electrocardiogram monitoring is suggested in aged patients due to the effects of HCQ on HR, PR, and QTc.https://www.karger.com/Article/FullText/515278cardiac conductionelectrocardiogramhydroxychloroquinecoronavirus disease 2019
spellingShingle Yanting Yu
Jianteng Xu
Anni Xie
Sijia Liu
Xiaojian Wang
Runzhang Zhu
Xiaoyan Wang
Hydroxychloroquine Inhibits Cardiac Conduction in Aged Patients with Nonmalaria Diseases
Kidney Diseases
cardiac conduction
electrocardiogram
hydroxychloroquine
coronavirus disease 2019
title Hydroxychloroquine Inhibits Cardiac Conduction in Aged Patients with Nonmalaria Diseases
title_full Hydroxychloroquine Inhibits Cardiac Conduction in Aged Patients with Nonmalaria Diseases
title_fullStr Hydroxychloroquine Inhibits Cardiac Conduction in Aged Patients with Nonmalaria Diseases
title_full_unstemmed Hydroxychloroquine Inhibits Cardiac Conduction in Aged Patients with Nonmalaria Diseases
title_short Hydroxychloroquine Inhibits Cardiac Conduction in Aged Patients with Nonmalaria Diseases
title_sort hydroxychloroquine inhibits cardiac conduction in aged patients with nonmalaria diseases
topic cardiac conduction
electrocardiogram
hydroxychloroquine
coronavirus disease 2019
url https://www.karger.com/Article/FullText/515278
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