Why the study?
Does spectral analysis of RR variability during controlled breathing predict tilt-test responses in subjects with recurrent vasovagal syncope?
Population
47 outpatients with recurrent vasovagal syncope and positive head-up tilt testing, plus a prospective cohort…
Comparison
Short-term spectral analysis of RR variability… vs Controls
Design
Cohort
Authors
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May identify tilt-test responders in recurrent syncope; hypothesis-generating and requires prospective validation before clinical use.
Does spectral analysis of RR variability during controlled breathing predict tilt-test responses in subjects with recurrent vasovagal syncope?
Spectral analysis of RR variability during controlled breathing accurately predicts tilt-test responses in patients with recurrent vasovagal syncope, indicating increased vagal sinus modulation at rest.
Piccirillo et al. (2004) studied this question.
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