Investigating Feed-Forward Neural Regulation of Circulation From Analysis of Spontaneous Arterial Pressure and Heart Rate Fluctuations | Zendy

Jacopo M. Legramante | Zendy; Gianfranco Raimondi | Zendy; Michele Massaro | Zendy; S Cassarino | Zendy; G Peruzzi | Zendy; Ferdinando Iellamo | Zendy

Open Access

Investigating Feed-Forward Neural Regulation of Circulation From Analysis of Spontaneous Arterial Pressure and Heart Rate Fluctuations

Author(s) -

Jacopo M. Legramante,

Gianfranco Raimondi,

Michele Massaro,

S Cassarino,

G Peruzzi,

Ferdinando Iellamo

Publication year - 1999

Publication title -

circulation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 7.795

H-Index - 607

eISSN - 1524-4539

pISSN - 0009-7322

DOI - 10.1161/01.cir.99.13.1760

Subject(s) - medicine , cardiology , blood pressure , heart rate , circulation (fluid dynamics) , mechanics , physics

Analysis of spontaneous fluctuations in systolic arterial pressure (SAP) and pulse interval (PI) reveals the occurrence of sequences of consecutive beats characterized by SAP and PI changing in the same (+PI/+SAP and -PI/-SAP) or opposite (-PI/+SAP and +PI/-SAP) direction. Although the former reflects baroreflex regulatory mechanisms, the physiological meaning of -PI/+SAP and +PI/-SAP is unclear. We tested the hypothesis that -PI/+SAP and +PI/-SAP "nonbaroreflex" sequences represent a phenomenon modulated by the autonomic nervous system reflecting a feed-forward mechanism of cardiovascular regulation.

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