Why the study?
Does supine cross-spectral analysis of cardiovascular parameters accurately identify subjects with poor orthostatic tolerance compared to tilt testing?
Population
105 subjects, comprising 79 patients with histories of unexplained syncope and 26 control subjects.
Comparison
Spectral and cross-spectral analysis of supine… vs Orthostatic test with 60 degrees head-up tilt…
Design
Cross-sectional
Authors
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Supine LF analysis may aid orthostatic tolerance screening; leaves open whether it can replace tilt testing in practice.
Does supine cross-spectral analysis of cardiovascular parameters accurately identify subjects with poor orthostatic tolerance compared to tilt testing?
Supine cross-spectral analysis of heart rate and blood pressure variability may provide a simple, non-invasive method to identify patients prone to orthostatic vasovagal syncope.
Gulli et al. (2003) studied this question.
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