Increased risk of vascular events in emergency room patients discharged home with diagnosis of dizziness or vertigo: a 3-year follow-up study.

BACKGROUND: Dizziness and vertigo symptoms are commonly seen in emergency room (ER). However, these patients are often discharged without a definite diagnosis. Conflicting data regarding the vascular event risk among the dizziness or vertigo patients have been reported. This study aims to determine...

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Main Authors: Ching-Chih Lee, Hsu-Chueh Ho, Yu-Chieh Su, Brian C-H Chiu, Yung-Cheng Su, Yi-Da Lee, Pesus Chou, Sou-Hsin Chien, Yung-Sung Huang
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3338765?pdf=render
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author Ching-Chih Lee
Hsu-Chueh Ho
Yu-Chieh Su
Brian C-H Chiu
Yung-Cheng Su
Yi-Da Lee
Pesus Chou
Sou-Hsin Chien
Yung-Sung Huang
author_facet Ching-Chih Lee
Hsu-Chueh Ho
Yu-Chieh Su
Brian C-H Chiu
Yung-Cheng Su
Yi-Da Lee
Pesus Chou
Sou-Hsin Chien
Yung-Sung Huang
author_sort Ching-Chih Lee
collection DOAJ
description BACKGROUND: Dizziness and vertigo symptoms are commonly seen in emergency room (ER). However, these patients are often discharged without a definite diagnosis. Conflicting data regarding the vascular event risk among the dizziness or vertigo patients have been reported. This study aims to determine the risk of developing stroke or cardiovascular events in ER patients discharged home with a diagnosis of dizziness or vertigo. METHODOLOGY: A total of 25,757 subjects with at least one ER visit in 2004 were identified. Of those, 1,118 patients were discharged home with a diagnosis of vertigo or dizziness. A Cox proportional hazard model was performed to compare the three-year vascular event-free survival rates between the dizziness/vertigo patients and those without dizziness/vertigo after adjusting for confounding and risk factors. RESULTS: We identified 52 (4.7%) vascular events in patients with dizziness/vertigo and 454 (1.8%) vascular events in patients without dizziness/vertigo. ER patients discharged home with a diagnosis of vertigo or dizziness had 2-fold (95% confidence interval [CI], 1.35-2.96; p<0.001) higher risk of stroke or cardiovascular events after adjusting for patient characteristics, co-morbidities, urbanization level of residence, individual socio-economic status, and initially taking medications after the onset of dizziness or vertigo during the first year. CONCLUSIONS: ER patients discharged home with a diagnosis of dizziness or vertigo were at a increased risk of developing subsequent vascular events than those without dizziness/vertigo after the onset of dizziness or vertigo. Further studies are warranted for developing better diagnostic and follow-up strategies in increased risk patients.
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spelling doaj.art-a91743667f364f83ab92d8e931a313352022-12-22T03:42:27ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0174e3592310.1371/journal.pone.0035923Increased risk of vascular events in emergency room patients discharged home with diagnosis of dizziness or vertigo: a 3-year follow-up study.Ching-Chih LeeHsu-Chueh HoYu-Chieh SuBrian C-H ChiuYung-Cheng SuYi-Da LeePesus ChouSou-Hsin ChienYung-Sung HuangBACKGROUND: Dizziness and vertigo symptoms are commonly seen in emergency room (ER). However, these patients are often discharged without a definite diagnosis. Conflicting data regarding the vascular event risk among the dizziness or vertigo patients have been reported. This study aims to determine the risk of developing stroke or cardiovascular events in ER patients discharged home with a diagnosis of dizziness or vertigo. METHODOLOGY: A total of 25,757 subjects with at least one ER visit in 2004 were identified. Of those, 1,118 patients were discharged home with a diagnosis of vertigo or dizziness. A Cox proportional hazard model was performed to compare the three-year vascular event-free survival rates between the dizziness/vertigo patients and those without dizziness/vertigo after adjusting for confounding and risk factors. RESULTS: We identified 52 (4.7%) vascular events in patients with dizziness/vertigo and 454 (1.8%) vascular events in patients without dizziness/vertigo. ER patients discharged home with a diagnosis of vertigo or dizziness had 2-fold (95% confidence interval [CI], 1.35-2.96; p<0.001) higher risk of stroke or cardiovascular events after adjusting for patient characteristics, co-morbidities, urbanization level of residence, individual socio-economic status, and initially taking medications after the onset of dizziness or vertigo during the first year. CONCLUSIONS: ER patients discharged home with a diagnosis of dizziness or vertigo were at a increased risk of developing subsequent vascular events than those without dizziness/vertigo after the onset of dizziness or vertigo. Further studies are warranted for developing better diagnostic and follow-up strategies in increased risk patients.http://europepmc.org/articles/PMC3338765?pdf=render
spellingShingle Ching-Chih Lee
Hsu-Chueh Ho
Yu-Chieh Su
Brian C-H Chiu
Yung-Cheng Su
Yi-Da Lee
Pesus Chou
Sou-Hsin Chien
Yung-Sung Huang
Increased risk of vascular events in emergency room patients discharged home with diagnosis of dizziness or vertigo: a 3-year follow-up study.
PLoS ONE
title Increased risk of vascular events in emergency room patients discharged home with diagnosis of dizziness or vertigo: a 3-year follow-up study.
title_full Increased risk of vascular events in emergency room patients discharged home with diagnosis of dizziness or vertigo: a 3-year follow-up study.
title_fullStr Increased risk of vascular events in emergency room patients discharged home with diagnosis of dizziness or vertigo: a 3-year follow-up study.
title_full_unstemmed Increased risk of vascular events in emergency room patients discharged home with diagnosis of dizziness or vertigo: a 3-year follow-up study.
title_short Increased risk of vascular events in emergency room patients discharged home with diagnosis of dizziness or vertigo: a 3-year follow-up study.
title_sort increased risk of vascular events in emergency room patients discharged home with diagnosis of dizziness or vertigo a 3 year follow up study
url http://europepmc.org/articles/PMC3338765?pdf=render
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