Abstract
Measurement of beat-to-beat blood pressure and heart rate responses to the Valsalva maneuver is the basis for a highly informative autonomic function test. Whereas in the past this measurement required intra-arterial cannulation, the development of finger cuff devices that acquire arterial pressure waveforms indistinguishable from those recorded intra-arterially has made it possible to obtain accurate measurements noninvasively. In a patient with orthostatic hypotension, the pattern of blood pressure responses during and after the release of the maneuver can identify a neurogenic basis: sympathetic neurocirculatory failure. The quantifiable change in cardiac interbeat interval per unit change in systolic pressure during the maneuver can identify baroreflex-cardiovagal failure.
Original language | English (US) |
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Pages (from-to) | 361-367 |
Number of pages | 7 |
Journal | Clinical Autonomic Research |
Volume | 27 |
Issue number | 6 |
DOIs | |
State | Published - Dec 1 2017 |
Keywords
- Autonomic
- Blood pressure
- Parasympathetic
- Sympathetic
- Valsalva
ASJC Scopus subject areas
- Endocrine and Autonomic Systems
- Clinical Neurology