Hemodynamic measurements for evaluating vasovagal syncope in the emergency department

Syncope is a sudden and transient loss of consciousness and postural tone, with spontaneous recovery without medical intervention. It accounts for 1.0% to 1.5% of emergency department (ED) visits and up to 6% of hospital admissions. Vasovagal syncope may be the cause of syncope in 21% to 40% of case...

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Main Authors: Stewart Siu-Wa Chan, Junrong Mo, Colin Alexander Graham, Timothy Hudson Rainer
Format: Article
Language:English
Published: The Korean Society of Emergency Medicine 2015-03-01
Series:Clinical and Experimental Emergency Medicine
Subjects:
Online Access:http://www.ceemjournal.org/upload/pdf/ceem-14-047.pdf
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author Stewart Siu-Wa Chan
Junrong Mo
Colin Alexander Graham
Timothy Hudson Rainer
author_facet Stewart Siu-Wa Chan
Junrong Mo
Colin Alexander Graham
Timothy Hudson Rainer
author_sort Stewart Siu-Wa Chan
collection DOAJ
description Syncope is a sudden and transient loss of consciousness and postural tone, with spontaneous recovery without medical intervention. It accounts for 1.0% to 1.5% of emergency department (ED) visits and up to 6% of hospital admissions. Vasovagal syncope may be the cause of syncope in 21% to 40% of cases. A 53-year-old Chinese woman was brought to the ED by ambulance after a near-syncope episode while performing gentle morning exercises. She was hypotensive and bradycardic in the ambulance. Upon arrival at the ED, her blood pressure was 89/61 mmHg. The use of a Doppler cardiac output monitor readily demonstrated that the patient’s systemic vascular resistance was reduced, with cardiac output at the lower limit of the normal range. These hemodynamic data were useful in supporting the diagnosis of vasovagal syncope; they helped in the risk stratification of our patient with syncope, and guided the management and subsequent disposition decision.
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spelling doaj.art-f9ef68261edc4e6c80696cfe318d52402023-02-23T05:26:48ZengThe Korean Society of Emergency MedicineClinical and Experimental Emergency Medicine2383-46252015-03-0121596210.15441/ceem.14.04734Hemodynamic measurements for evaluating vasovagal syncope in the emergency departmentStewart Siu-Wa Chan0Junrong Mo1Colin Alexander Graham2Timothy Hudson Rainer3Accident and Emergency Medicine Academic Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong KongAccident and Emergency Medicine Academic Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong KongAccident and Emergency Medicine Academic Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong KongAccident and Emergency Medicine Academic Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong KongSyncope is a sudden and transient loss of consciousness and postural tone, with spontaneous recovery without medical intervention. It accounts for 1.0% to 1.5% of emergency department (ED) visits and up to 6% of hospital admissions. Vasovagal syncope may be the cause of syncope in 21% to 40% of cases. A 53-year-old Chinese woman was brought to the ED by ambulance after a near-syncope episode while performing gentle morning exercises. She was hypotensive and bradycardic in the ambulance. Upon arrival at the ED, her blood pressure was 89/61 mmHg. The use of a Doppler cardiac output monitor readily demonstrated that the patient’s systemic vascular resistance was reduced, with cardiac output at the lower limit of the normal range. These hemodynamic data were useful in supporting the diagnosis of vasovagal syncope; they helped in the risk stratification of our patient with syncope, and guided the management and subsequent disposition decision.http://www.ceemjournal.org/upload/pdf/ceem-14-047.pdfhemodynamicssyncopeultrasonography, dopplercardiac output
spellingShingle Stewart Siu-Wa Chan
Junrong Mo
Colin Alexander Graham
Timothy Hudson Rainer
Hemodynamic measurements for evaluating vasovagal syncope in the emergency department
Clinical and Experimental Emergency Medicine
hemodynamics
syncope
ultrasonography, doppler
cardiac output
title Hemodynamic measurements for evaluating vasovagal syncope in the emergency department
title_full Hemodynamic measurements for evaluating vasovagal syncope in the emergency department
title_fullStr Hemodynamic measurements for evaluating vasovagal syncope in the emergency department
title_full_unstemmed Hemodynamic measurements for evaluating vasovagal syncope in the emergency department
title_short Hemodynamic measurements for evaluating vasovagal syncope in the emergency department
title_sort hemodynamic measurements for evaluating vasovagal syncope in the emergency department
topic hemodynamics
syncope
ultrasonography, doppler
cardiac output
url http://www.ceemjournal.org/upload/pdf/ceem-14-047.pdf
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