Failure of reflex venoconstriction during exercise in patients with vasovagal syncope

Helen L. Thomson; John J. Atherton; Frederick A. Khafagi; Michael P. Frenneaux

doi:10.1161/01.CIR.93.5.953

Failure of reflex venoconstriction during exercise in patients with vasovagal syncope

Helen L. Thomson, John J. Atherton, Frederick A. Khafagi, Michael P. Frenneaux

Research output: Contribution to journal › Article › peer-review

74 Citations (Scopus)

Abstract

In this study, we tested two hypotheses. First, we tested the hypothesis that reflex constriction of the venous capacitance beds in patients with vasovagal syncope is impaired during both subhypotensive lower-body negative pressure. Second, we proposed that splenic venoconstriction may be impaired during exercise in patients with vasovagal syncope.

Original language	English
Pages (from-to)	953-959
Number of pages	7
Journal	Circulation
Volume	93
Issue number	5
DOIs	https://doi.org/10.1161/01.CIR.93.5.953
Publication status	Published - 1 Mar 1996

Keywords

Adult
Aged
Blood Pressure
Exercise
Female
Humans
Lower Body Negative Pressure
Male
Middle Aged
Reflex
Spleen
Syncope
Vascular Resistance
Vasoconstriction
Veins

Access to Document

10.1161/01.CIR.93.5.953

Cite this

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title = "Failure of reflex venoconstriction during exercise in patients with vasovagal syncope",

abstract = "In this study, we tested two hypotheses. First, we tested the hypothesis that reflex constriction of the venous capacitance beds in patients with vasovagal syncope is impaired during both subhypotensive lower-body negative pressure. Second, we proposed that splenic venoconstriction may be impaired during exercise in patients with vasovagal syncope.",

keywords = "Adult, Aged, Blood Pressure, Exercise, Female, Humans, Lower Body Negative Pressure, Male, Middle Aged, Reflex, Spleen, Syncope, Vascular Resistance, Vasoconstriction, Veins",

author = "Thomson, {Helen L.} and Atherton, {John J.} and Khafagi, {Frederick A.} and Frenneaux, {Michael P.}",

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AU - Thomson, Helen L.

AU - Atherton, John J.

AU - Khafagi, Frederick A.

AU - Frenneaux, Michael P.

PY - 1996/3/1

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N2 - In this study, we tested two hypotheses. First, we tested the hypothesis that reflex constriction of the venous capacitance beds in patients with vasovagal syncope is impaired during both subhypotensive lower-body negative pressure. Second, we proposed that splenic venoconstriction may be impaired during exercise in patients with vasovagal syncope.

AB - In this study, we tested two hypotheses. First, we tested the hypothesis that reflex constriction of the venous capacitance beds in patients with vasovagal syncope is impaired during both subhypotensive lower-body negative pressure. Second, we proposed that splenic venoconstriction may be impaired during exercise in patients with vasovagal syncope.

KW - Adult

KW - Aged

KW - Blood Pressure

KW - Exercise

KW - Female

KW - Humans

KW - Lower Body Negative Pressure

KW - Male

KW - Middle Aged

KW - Reflex

KW - Spleen

KW - Syncope

KW - Vascular Resistance

KW - Vasoconstriction

KW - Veins

U2 - 10.1161/01.CIR.93.5.953

DO - 10.1161/01.CIR.93.5.953

M3 - Article

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VL - 93

SP - 953

EP - 959

JO - Circulation

JF - Circulation

SN - 0009-7322

IS - 5

ER -