Contribution of Vascular and Neural Segments to Baroreflex Sensitivity in Response to Postural Stress | Zendy

Nazia P. Saeed | Zendy; Robert S. Reneman | Zendy; Arnold P.G. Hoeks | Zendy

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Contribution of Vascular and Neural Segments to Baroreflex Sensitivity in Response to Postural Stress

Author(s) -

Nazia P. Saeed,

Robert S. Reneman,

Arnold P.G. Hoeks

Publication year - 2009

Publication title -

journal of vascular research

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.58

H-Index - 74

eISSN - 1423-0135

pISSN - 1018-1172

DOI - 10.1159/000200962

Subject(s) - baroreflex , peripheral , baroreceptor , supine position , medicine , cardiology , common carotid artery , blood pressure , anatomy , carotid arteries , heart rate

The baroreflex pathway has a vascular and a neural segment, both being modulated by variations in peripheral blood pressure (BP). Besides overall baroreceptor sensitivity (BRS), defined as the spectral relationship between changes in peripheral BP and R-R interval within the frequency band of 0.05-0.15 Hz, vascular and neural segment contributions to the overall BRS can be distinguished. We test the hypothesis that changes in overall BRS following a postural maneuver mainly originate from the vascular (peripheral pressure to carotid artery diameter) rather than the neural segment (carotid artery diameter to R-R interval).

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