Comparison of catecholamine response during tilt-table-induced vasovagal syncope in patients <35 to those >65 years of age

Cengiz Ermis, Nemer Samniah, Scott Sakaguchi, Keith G Lurie, Scott Pham, Fei Lu, David G Benditt

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

This study compared alterations in arterial catecholamine concentrations associated with tilt-induced vasovagal syncope that differed in older (>65 years) and younger patients (<35 years). Older patients with tilt-positive tests tended to exhibit higher baseline epinephrine (E) concentrations and lesser E surge before development of syncope than younger patients (<35 years), whereas both groups manifested comparable norepinephrine (NE) responsiveness.

Original languageEnglish (US)
Pages (from-to)225-227
Number of pages3
JournalAmerican Journal of Cardiology
Volume93
Issue number2
DOIs
StatePublished - Jan 15 2004

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