The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.
Pressure-Altering Agents Affect Central Aortic Pressures More Than Is Apparent From Upper Limb Measurements in Hypertensive Patients: The Role of Arterial Wave Reflections
Open accessAbstract
The pressure pulse does not have the same amplitude in central and peripheral arteries, but it is amplified toward the periphery; the degree of this amplification depends principally on wave reflection. Despite the conventional clinical and epidemiological focus on peripheral pressures, the most physiologically relevant pressures for both cardiac and vascular effects are central pressures. The reflected wave contributes differently in the configuration of the peripheral and central pressure waveform. Therefore, we hypothesized that agents that alter wave reflections could have an unequal effect on central and peripheral pressures in hypertensive patients. Thus, the effect of caffeine was investigated in 10 hypertensive subjects according to a randomized, placebo-controlled, double-blind, crossover design. Central aortic pressures and wave reflection were assessed with applanation tonometry and pulse wave analysis. After caffeine, augmentation index and augmented pressure increased by 4.6%, (P<0.005) and 5.7 mm Hg (P<0.001), respectively, indicating increased effect of wave reflection from the periphery. The increase in aortic systolic pressure was greater compared with that in radial artery pressure at 30 minutes (25%) and marginally greater at 60 minutes (21%). Furthermore, the increase in aortic pulse pressure was greater at 30 and 60 minutes (34% and 40%, respectively). The intensified reflected wave after caffeine was largely responsible for the disparate effect between central and peripheral pressures by boosting the peak of the central and not of the peripheral waveform. This study shows that pressure-altering agents might affect central pressures more than is apparent from the corresponding upper limb values because of the concomitant changes in wave reflection.
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“We and others have previously shown that active and passive smoking (13)(14)(15) and caffeine (16 -19) increase arterial stiffness and wave reflections.”
From Smoking and caffeine have a synergistic detrimental effect on aortic stiffness and wave reflections (2004) · cites this paper as [16]
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Cites
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Self-citationAortic pulse wave velocity as a marker of cardiovascular risk in hypertensive patients
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Self-citationThe influence of heart rate on augmentation index and central arterial pressure in humans
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Self-citationReproducibility of pulse wave velocity and augmentation index measured by pulse wave analysis
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Cited by
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Recommendations for Improving and Standardizing Vascular Research on Arterial Stiffness
Townsend, R. R., Wilkinson, I. B., Schiffrin, E. L., Avolio, A. P., Chirinos, J. A., Cockcroft, J. R., Heffernan, K. S., Lakatta, E. G., McEniery, C. M., Mitchell, G. F., et al. (2015) · Hypertension · doi:10.1161/hyp.0000000000000033 · Cited by 1,527
Central Blood Pressure Measurements and Antihypertensive Therapy
Agabiti‐Rosei, E., Mancia, G., O’Rourke, M. F., Roman, M. J., Safar, M. E., Smulyan, H., Wang, J.-G., Wilkinson, I. B., Williams, B., & Vlachopoulos, C. V. (2007) · Hypertension · doi:10.1161/hypertensionaha.107.090068 · Cited by 618
Self-citationRole of Pulse Pressure Amplification in Arterial Hypertension
Avolio, A. P., Bortel, L. M. V., Boutouyrie, P., Cockcroft, J. R., McEniery, C. M., Protogerou, A. D., Roman, M. J., Safar, M. E., Segers, P., & Smulyan, H. (2009) · Hypertension · doi:10.1161/hypertensionaha.109.134379 · Cited by 530
Vlachopoulos, C., Dima, I., Aznaouridis, K., Vasiliadou, C., Ioakeimidis, N., Aggeli, C., Toutouza, M., & Stefanadis, C. (2005) · Circulation · doi:10.1161/circulationaha.105.535435 · Cited by 492
Self-citationEffect of Dark Chocolate on Arterial Function in Healthy Individuals
Vlachopoulos, C. V., Aznaouridis, K., Alexopoulos, N. A., Economou, E. N., Andreadou, I., & Stefanadis, C. (2005) · American Journal of Hypertension · doi:10.1016/j.amjhyper.2004.12.008 · Cited by 200
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Metadata
- Authors
- Vlachopoulos, C., Hirata, K., & O’Rourke, M. F.
- Affiliations
- UNSW Sydney (AU)
- Venue
- Hypertension
- Published
- 2001-12
- Volume
- 38
- Issue
- 6
- Pages
- 1456-1460
- ISSN
- 0194-911X (ISSN-L)
- 1524-4563
- OpenAlex
- W2134892659
- Cited by
- 102
- References
- 25
- Citations by year
- 2025: 2 · 2024: 2 · 2023: 1 · 2022: 5 · 2020: 1 · 2019: 2 · 2017: 4 · 2016: 3 · 2015: 4 · 2014: 1 · 2013: 3 · 2012: 4
- FWCI
- 4.10
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Hypertension (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Health and Disease Prevention
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
- Physical Sciences › Engineering › Biomedical Engineering › Non-Invasive Vital Sign Monitoring
- Keywords
- central blood pressure, wave reflection, pulse wave analysis, caffeine, augmentation index, applanation tonometry, radial artery pressure, pulse pressure
- MeSH terms
- Aorta, Blood Pressure, Caffeine, Double-Blind Method, Female, Heart Rate, Hemodynamics, Humans, Hypertension, Male, Middle Aged, Radial Artery, Cross-Over Studies
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