Vasovagal susceptibility to nitrate or isoproterenol head-up tilt

Authors
Nino, J Villar, JC Tahvanainen, KUO Kahonen, M Kuusela, TA Morillo, CA
Citation
J. Nino et al., Vasovagal susceptibility to nitrate or isoproterenol head-up tilt, AM J CARD, 88(11), 2001, pp. 1326
Citations number
20
Categorie Soggetti
Cardiovascular & Respiratory Systems","Cardiovascular & Hematology Research
Journal title
AMERICAN JOURNAL OF CARDIOLOGY
ISSN journal
00029149 → ACNP
Volume
88
Issue
11
Year of publication
2001
Database
ISI
SICI code
0002-9149(200112)88:11<1326:VSTNOI>2.0.ZU;2-L
Abstract
We assessed sympathovagal balance and baroreflex sensitivity in 80 subjects with recurrent syncope, randomly assigned to head-up tilt with either nitr ate or isoproterenol. A vagal predominance in nitrate susceptible individua ls compared with an increased sympathetic balance at rest in isoproterenol head-up tilt induced neurocardiogenic syncope was observed.