The DOI matches its Crossref record; 43 of the 43 references it cites were found in a registry or an index.
Relationship Between Aortic Stiffening and Microvascular Disease in Brain and Kidney: Cause and Logic of Therapy
Abstract
A close relationship has been established between microvascular damage in brain and kidney and indices of age and hypertension (pulse pressure, aortic pulse wave velocity, and augmentation index). The mechanism of such association has not been established, nor has rationale for prevention and treatment of microvascular damage. A logical pathophysiological explanation can be offered on the basis of differential input impedance in the brain and kidney compared with other systemic vascular beds. Torrential flow and low resistance to flow in these organs exposes small arterial vessels to the high-pressure fluctuations that exist in the carotid, vertebral, and renal arteries. Such fluctuations, measurable as central pulse pressure, increase 3- to 4-fold with age. Exposure of small vessels to highly pulsatile pressure and flow explains microvascular damage and resulting renal insufficiency and intellectual deterioration, according to the mechanism established by Byrom >50 years ago. The logical approach to prevention and treatment requires reduction of central pulse pressure. Because the aorta and large arteries are not directly affected by drugs, this entails reduction of wave reflection by dilation of conduit arteries elsewhere in the body. This can be accomplished by regular exercise and by drugs such as nitrates, calcium channel blockers, angiotensin-converting enzyme inhibitors, and angiotensin receptor blockers. The explanation given here accounts for greater and earlier vascular damage in diabetes mellitus (relative microvascular fragility) and is similar to that given for vascular changes of pulmonary hypertension caused by ventricular septal defects and other congenital vascular shunts.
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“Several pathways may link aortic stiffness to microvascular brain damage. They include endothelial dysfunction and oxidative stress,209 a mutually reinforcing remodeling of large and small vessels (ie, large-/small-artery cross talk),210 and exposure of small vessels to the high-pressure fluctuations of the cerebral circulation,211”
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Cites
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Hemodynamic Patterns of Age-Related Changes in Blood Pressure: The Framingham Heart Study
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Aortic Stiffness Is an Independent Predictor of Primary Coronary Events in Hypertensive Patients
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Self-citationArterial Calcifications, Arterial Stiffness, and Cardiovascular Risk in End-Stage Renal Disease
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Self-citationArterial stiffness, wave reflections, and the risk of coronary artery disease
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Self-citationAortic Stiffness Is an Independent Predictor of Fatal Stroke in Essential Hypertension
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Impact of Aortic Stiffness Attenuation on Survival of Patients in End-Stage Renal Failure
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Whelton, P. K., Carey, R. M., Aronow, W. S., Casey, D. E., Collins, K. J., Dennison Himmelfarb, C., DePalma, S. M., Gidding, S., Jamerson, K. A., Jones, D. W., et al. (2018) · Hypertension · doi:10.1161/hyp.0000000000000065 · Cited by 7,391
Whelton, P. K., Carey, R. M., Aronow, W. S., Casey, D. E., Collins, K. J., Dennison Himmelfarb, C., DePalma, S. M., Gidding, S., Jamerson, K. A., Jones, D. W., et al. (2018) · Journal of the American College of Cardiology · doi:10.1016/j.jacc.2017.11.006 · Cited by 6,616
Expert consensus document on arterial stiffness: methodological issues and clinical applications
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“Another explanation is given by the differential input impedance in the brain compared with other systemic vascular beds.(108) Torrential flow and low resistance to flow in these organs expose small arterial vessels to the high-pressure fluctuations that exist in the carotid and vertebral arteries, and that increase t…”
BackgroundGorelick, P. B., Scuteri, A., Black, S. E., DeCarli, C., Greenberg, S. M., Iadecola, C., Launer, L. J., Laurent, S., Lopez, O. L., Nyenhuis, D., et al. (2011) · Stroke · doi:10.1161/str.0b013e3182299496 · Cited by 3,811
2024 ESC Guidelines for the management of elevated blood pressure and hypertension
McEvoy, J. W., McCarthy, C. P., Bruno, R. M., Brouwers, S., Canavan, M. D., Ceconi, C., Christodorescu, R. M., Daskalopoulou, S. S., Ferro, C. J., Gerdts, E., et al. (2024) · European Heart Journal · doi:10.1093/eurheartj/ehae178 · Cited by 2,298
Metadata
- Authors
- O’Rourke, M. F., & Safar, M. E.
- Affiliations
- UNSW Sydney (AU)
- Venue
- Hypertension
- Published
- 2005-07
- Volume
- 46
- Issue
- 1
- Pages
- 200-204
- ISSN
- 0194-911X (ISSN-L)
- 1524-4563
- OpenAlex
- W2103868761
- Cited by
- 1,279
- References
- 43
- Citations by year
- 2026: 33 · 2025: 65 · 2024: 56 · 2023: 50 · 2022: 62 · 2021: 73 · 2020: 74 · 2019: 67 · 2018: 98 · 2017: 67 · 2016: 84 · 2015: 80 · 2014: 91 · 2013: 59 · 2012: 63
- FWCI
- 19.37
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Hypertension (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Health and Disease Prevention
- Health Sciences › Medicine › Nephrology › Renal and Vascular Pathologies
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
- Keywords
- aortic stiffness, microangiopathy, central pulse pressure, aortic pulse wave velocity, augmentation index, input impedance, wave reflection, aging, renal failure, cognitive decline, diabetes mellitus, vascular fragility, nitrate, calcium channel blockers, ACE inhibitors, angiotensin receptor blockers, physical activity
- MeSH terms
- Aorta, Brain, Compliance, Humans, Kidney, Microcirculation, Vascular Diseases
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