Hemodynamic Analysis During Isoproterenol-Induced Vasovagal Syncope

An isoproterenol-mediated increase in cardiomotor tone and a decrease in afterload contribute to the induction of vasovagal syncope. Contrary to conventional belief, a significant decrease in preload is not observed immediately before isoproterenol-induced syncope.

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Bibliographic Details
Published in:The American journal of cardiology 1997-09, Vol.80 (6), p.817-822
Main Authors: Shen, Win-Kuang, Fenton, Alexis M., Lohse, Christine M., Bailey, Kent R., Low, Phillip A., Hammill, Stephen C.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Biological and medical sciences
Blood pressure
Cardiotonic Agents - administration & dosage
Cardiotonic Agents - adverse effects
Drug therapy
Drug toxicity and drugs side effects treatment
Fainting
Female
Heart
Hemodynamics - drug effects
Humans
Infusions, Intravenous
Isoproterenol - administration & dosage
Isoproterenol - adverse effects
Male
Medical research
Medical sciences
Middle Aged
Older people
Pharmacology. Drug treatments
Syncope, Vasovagal - chemically induced
Syncope, Vasovagal - physiopathology
Tilt-Table Test
Toxicity: nervous system and muscle
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Description
Summary:An isoproterenol-mediated increase in cardiomotor tone and a decrease in afterload contribute to the induction of vasovagal syncope. Contrary to conventional belief, a significant decrease in preload is not observed immediately before isoproterenol-induced syncope.
ISSN:0002-9149
1879-1913
DOI:10.1016/S0002-9149(97)00529-8