Antipsychotic medications and stroke in schizophrenia: A case-crossover study.

<h4>Background</h4>The association between antipsychotic use and the risk of stroke in schizophrenic patients is controversial. We sought to study the association in a nationwide cohort with schizophrenia.<h4>Methods</h4>Using a retrospective cohort of patients with schizophr...

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Main Authors: Wen-Yin Chen, Lian-Yu Chen, Hsing-Cheng Liu, Chi-Shin Wu, Shu-Yu Yang, Chun-Hung Pan, Shang-Ying Tsai, Chiao-Chicy Chen, Chian-Jue Kuo
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0179424&type=printable
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author Wen-Yin Chen
Lian-Yu Chen
Hsing-Cheng Liu
Chi-Shin Wu
Shu-Yu Yang
Chun-Hung Pan
Shang-Ying Tsai
Chiao-Chicy Chen
Chian-Jue Kuo
author_facet Wen-Yin Chen
Lian-Yu Chen
Hsing-Cheng Liu
Chi-Shin Wu
Shu-Yu Yang
Chun-Hung Pan
Shang-Ying Tsai
Chiao-Chicy Chen
Chian-Jue Kuo
author_sort Wen-Yin Chen
collection DOAJ
description <h4>Background</h4>The association between antipsychotic use and the risk of stroke in schizophrenic patients is controversial. We sought to study the association in a nationwide cohort with schizophrenia.<h4>Methods</h4>Using a retrospective cohort of patients with schizophrenia (N = 31,976) derived from the Taiwan National Health Insurance Research Database, 802 new-onset cases of stroke were identified within 10 years of follow-up (from 2000 through 2010). We designed a case-crossover study using 14-day windows to explore the risk factors of stroke and the association between antipsychotic drugs and the risk of stroke. We analyzed the risks of individual antipsychotics on various subgroups of stroke including ischemic, hemorrhagic, and other strokes, and the risks based on the antipsychotic receptor-binding profile of each drug.<h4>Results</h4>Use of any second-generation antipsychotic was associated with an increased risk of stroke (adjusted risk ratio = 1.45, P = .009) within 14 days while the use of any first-generation antipsychotic was not. Intriguingly, the use of any second-generation antipsychotic was associated with ischemic stroke but not hemorrhagic stroke. The antipsychotic receptor-binding profile analysis showed that the antihistamine 1 receptor was significantly associated with ischemic stroke (adjusted risk ratio = 1.72, P = .037), and the sensitivity analysis based on the 7-day window of exposure validated the association (adjusted risk ratio = 1.87, P = .015).<h4>Conclusions</h4>Use of second-generation antipsychotic drugs appeared to be associated with an increased risk of ischemic stroke in the patients studied, possibly mediated by high affinity for histamine-1 receptor blockade. Further research regarding the underlying biological mechanism and drug safety is suggested.
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spelling doaj-art-1ec2fe9136e44417a9786f197b2a06dc2025-08-20T02:03:52ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01126e017942410.1371/journal.pone.0179424Antipsychotic medications and stroke in schizophrenia: A case-crossover study.Wen-Yin ChenLian-Yu ChenHsing-Cheng LiuChi-Shin WuShu-Yu YangChun-Hung PanShang-Ying TsaiChiao-Chicy ChenChian-Jue Kuo<h4>Background</h4>The association between antipsychotic use and the risk of stroke in schizophrenic patients is controversial. We sought to study the association in a nationwide cohort with schizophrenia.<h4>Methods</h4>Using a retrospective cohort of patients with schizophrenia (N = 31,976) derived from the Taiwan National Health Insurance Research Database, 802 new-onset cases of stroke were identified within 10 years of follow-up (from 2000 through 2010). We designed a case-crossover study using 14-day windows to explore the risk factors of stroke and the association between antipsychotic drugs and the risk of stroke. We analyzed the risks of individual antipsychotics on various subgroups of stroke including ischemic, hemorrhagic, and other strokes, and the risks based on the antipsychotic receptor-binding profile of each drug.<h4>Results</h4>Use of any second-generation antipsychotic was associated with an increased risk of stroke (adjusted risk ratio = 1.45, P = .009) within 14 days while the use of any first-generation antipsychotic was not. Intriguingly, the use of any second-generation antipsychotic was associated with ischemic stroke but not hemorrhagic stroke. The antipsychotic receptor-binding profile analysis showed that the antihistamine 1 receptor was significantly associated with ischemic stroke (adjusted risk ratio = 1.72, P = .037), and the sensitivity analysis based on the 7-day window of exposure validated the association (adjusted risk ratio = 1.87, P = .015).<h4>Conclusions</h4>Use of second-generation antipsychotic drugs appeared to be associated with an increased risk of ischemic stroke in the patients studied, possibly mediated by high affinity for histamine-1 receptor blockade. Further research regarding the underlying biological mechanism and drug safety is suggested.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0179424&type=printable
spellingShingle Wen-Yin Chen
Lian-Yu Chen
Hsing-Cheng Liu
Chi-Shin Wu
Shu-Yu Yang
Chun-Hung Pan
Shang-Ying Tsai
Chiao-Chicy Chen
Chian-Jue Kuo
Antipsychotic medications and stroke in schizophrenia: A case-crossover study.
PLoS ONE
title Antipsychotic medications and stroke in schizophrenia: A case-crossover study.
title_full Antipsychotic medications and stroke in schizophrenia: A case-crossover study.
title_fullStr Antipsychotic medications and stroke in schizophrenia: A case-crossover study.
title_full_unstemmed Antipsychotic medications and stroke in schizophrenia: A case-crossover study.
title_short Antipsychotic medications and stroke in schizophrenia: A case-crossover study.
title_sort antipsychotic medications and stroke in schizophrenia a case crossover study
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0179424&type=printable
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