The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Respiration‐synchronous fluctuations in stroke volume, heart rate and arterial pressure in humans.
Open accessAbstract
1. Simultaneous recordings of beat‐to‐beat left cardiac stroke volume (SV, pulsed ultrasound Doppler), mean arterial pressure (MAP) and heart rate (HR) were obtained in ten healthy young adults during spontaneous respiration at supine rest, before and after cholinergic blockade by atropine (0.035 mg kg‐1). 2. Respiration‐synchronous fluctuations in SV, HR, cardiac output (CO) and MAP were quantified by spectral analysis of the recordings of each of these variables. 3. Before atropine administration, respiration‐synchronous fluctuations in HR and SV were prominent. The changes in HR and SV were inversely related and variation in SV was the main source of respiratory variability in CO. Respiration‐synchronous fluctuations in MAP were mainly caused by variations in CO. 4. After cholinergic blockade, respiratory HR variations were eliminated, whereas the respiratory fluctuations in SV persisted. The fluctuations in CO and MAP increased. In this situation, mechanically induced variations in SV were not counteracted by inverse HR fluctuations and the influence on CO thus increased. 5. The main source of respiratory fluctuations in MAP in supine humans is thus variation in SV, while inverse, vagally mediated HR variations tend to reduce the fluctuations in CO and MAP.
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Parati, G., Casadei, R., Groppelli, A., Di Rienzo, M., & Mancia, G. (1989) · Hypertension · doi:10.1161/01.hyp.13.6.647 · Cited by 899
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Syncope, cerebral perfusion, and oxygenation
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Metadata
- Authors
- Toska, K., & Eriksen, M.
- Venue
- The Journal of Physiology
- Publisher
- Wiley
- Published
- 1993-12
- Volume
- 472
- Issue
- 1
- Pages
- 501-512
- ISSN
- 0022-3751 (ISSN-L)
- 1469-7793
- OpenAlex
- W2049575027
- Cited by
- 212
- References
- 1
- FWCI
- 4.36
- Type
- journal article
- Language
- en
- Open access
- green
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- Toska, K., & Eriksen, M. (1993). Respiration‐synchronous fluctuations in stroke volume, heart rate and arterial pressure in humans. The Journal of Physiology. https://doi.org/10.1113/jphysiol.1993.sp019958
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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