Abnormal forearm vascular responses during dynamic leg exercise in patients with vasovagal syncope

Helen L. Thomson; Suhas S. Lele; John J. Atherton; Karen N. Wright; Wayne Stafford; Michael P. Frenneaux

doi:10.1161/01.CIR.92.8.2204

Abnormal forearm vascular responses during dynamic leg exercise in patients with vasovagal syncope

Helen L. Thomson, Suhas S. Lele, John J. Atherton, Karen N. Wright, Wayne Stafford, Michael P. Frenneaux

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

38 Citations (Scopus)

Abstract

We have reported previously that in some patients with normal hearts who present with exercise syncope, abnormal forearm vasodilation is seen during leg exercise and tilt table tests are positive. This suggests that exercise syncope may be a variant of vasovagal syncope. In this study we tested the hypothesis that there is loss of the normal forearm vasoconstrictor response during dynamic leg exercise in an unselected population of patients with classic vasovagal syncope.

Original language	English
Pages (from-to)	2204-9
Number of pages	6
Journal	Circulation
Volume	92
Issue number	8
DOIs	https://doi.org/10.1161/01.CIR.92.8.2204
Publication status	Published - 15 Oct 1995

Keywords

Adult
Blood Pressure
Case-Control Studies
Exercise
Exercise Test
Female
Forearm
Humans
Leg
Male
Phenylephrine
Pressoreceptors
Regional Blood Flow
Syncope
Vascular Resistance
Vasoconstriction
Vasomotor System

Access to Document

10.1161/01.CIR.92.8.2204

Cite this

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title = "Abnormal forearm vascular responses during dynamic leg exercise in patients with vasovagal syncope",

abstract = "We have reported previously that in some patients with normal hearts who present with exercise syncope, abnormal forearm vasodilation is seen during leg exercise and tilt table tests are positive. This suggests that exercise syncope may be a variant of vasovagal syncope. In this study we tested the hypothesis that there is loss of the normal forearm vasoconstrictor response during dynamic leg exercise in an unselected population of patients with classic vasovagal syncope.",

keywords = "Adult, Blood Pressure, Case-Control Studies, Exercise, Exercise Test, Female, Forearm, Humans, Leg, Male, Phenylephrine, Pressoreceptors, Regional Blood Flow, Syncope, Vascular Resistance, Vasoconstriction, Vasomotor System",

author = "Thomson, {Helen L.} and Lele, {Suhas S.} and Atherton, {John J.} and Wright, {Karen N.} and Wayne Stafford and Frenneaux, {Michael P.}",

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AU - Thomson, Helen L.

AU - Lele, Suhas S.

AU - Atherton, John J.

AU - Wright, Karen N.

AU - Stafford, Wayne

AU - Frenneaux, Michael P.

PY - 1995/10/15

Y1 - 1995/10/15

N2 - We have reported previously that in some patients with normal hearts who present with exercise syncope, abnormal forearm vasodilation is seen during leg exercise and tilt table tests are positive. This suggests that exercise syncope may be a variant of vasovagal syncope. In this study we tested the hypothesis that there is loss of the normal forearm vasoconstrictor response during dynamic leg exercise in an unselected population of patients with classic vasovagal syncope.

AB - We have reported previously that in some patients with normal hearts who present with exercise syncope, abnormal forearm vasodilation is seen during leg exercise and tilt table tests are positive. This suggests that exercise syncope may be a variant of vasovagal syncope. In this study we tested the hypothesis that there is loss of the normal forearm vasoconstrictor response during dynamic leg exercise in an unselected population of patients with classic vasovagal syncope.

KW - Adult

KW - Blood Pressure

KW - Case-Control Studies

KW - Exercise

KW - Exercise Test

KW - Female

KW - Forearm

KW - Humans

KW - Leg

KW - Male

KW - Phenylephrine

KW - Pressoreceptors

KW - Regional Blood Flow

KW - Syncope

KW - Vascular Resistance

KW - Vasoconstriction

KW - Vasomotor System

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DO - 10.1161/01.CIR.92.8.2204

M3 - Article

C2 - 7554203

VL - 92

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JO - Circulation

JF - Circulation

SN - 0009-7322

IS - 8

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