| Hemodynamic correlates of blood pressure across the adult age spectrum: noninvasive evaluation in the Framingham Heart Study. | |
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MedLine Citation:
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PMID: 20855656 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Systolic blood pressure and pulse pressure are substantially higher in older adults. The relative contributions of increased forward versus reflected pressure wave amplitude or earlier arrival of the reflected wave to elevated pulse pressure remain controversial. METHODS AND RESULTS: We measured proximal aortic pressure and flow, forward pressure wave amplitude, global wave reflection, reflected wave timing, and pulse wave velocity noninvasively in 6417 (age range, 19 to 90 years; 53 women) Framingham Heart Study Third Generation and Offspring participants. Variation in forward wave amplitude paralleled pulse pressure throughout adulthood. In contrast, wave reflection and pulse pressure were divergent across adulthood: In younger participants, pulse pressure was lower and wave reflection was higher with advancing age, whereas in older participants, pulse pressure was higher and wave reflection was lower with age. Reflected wave timing differed modestly across age groups despite considerable differences in pulse wave velocity. Forward wave amplitude explained 80 (central) and 66 (peripheral) of the variance in pulse pressure in younger participants (<50 years) and 90 and 84 in the older participants (≥ 50 years; all P<0.0001). In a stepwise model that evaluated age-pulse pressure relations in the full sample, the late accelerated increases in central and peripheral pulse pressure were markedly attenuated when variation in forward wave amplitude was considered. CONCLUSIONS: Higher pulse pressure at any age and higher pulse pressure with advancing age is associated predominantly with a larger forward pressure wave. The influence of wave reflection on age-related differences in pulse pressure was minor. |
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Authors:
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Gary F Mitchell; Na Wang; Joseph N Palmisano; Martin G Larson; Naomi M Hamburg; Joseph A Vita; Daniel Levy; Emelia J Benjamin; Ramachandran S Vasan |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't Date: 2010-09-20 |
Journal Detail:
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Title: Circulation Volume: 122 ISSN: 1524-4539 ISO Abbreviation: Circulation Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-10-05 Completed Date: 2010-10-29 Revised Date: 2012-05-07 |
Medline Journal Info:
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Nlm Unique ID: 0147763 Medline TA: Circulation Country: United States |
Other Details:
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Languages: eng Pagination: 1379-86 Citation Subset: AIM; IM |
Affiliation:
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Cardiovascular Engineering Inc., 1 Edgewater Drive, Norwood, MA 02062, USA. GaryFMitchell@mindspring.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Aging / physiology* Blood Pressure / physiology* Body Mass Index Cardiovascular Diseases / epidemiology Female Heart Rate Hemodynamics / physiology* Humans Hypertension / epidemiology Lipids / blood Male Middle Aged Pulse Smoking / epidemiology Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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2-K24-HL04334/HL/NHLBI NIH HHS; AG028321/AG/NIA NIH HHS; HL060040/HL/NHLBI NIH HHS; HL070100/HL/NHLBI NIH HHS; HL071039/HL/NHLBI NIH HHS; HL076784/HL/NHLBI NIH HHS; HL077447/HL/NHLBI NIH HHS; HL080124/HL/NHLBI NIH HHS; K24 HL004334-08/HL/NHLBI NIH HHS; N01 HC025195/HC/NHLBI NIH HHS; N01-HC-25195/HC/NHLBI NIH HHS; R01 AG028321-05/AG/NIA NIH HHS; R01 HL060040-04/HL/NHLBI NIH HHS; R01 HL070100-04/HL/NHLBI NIH HHS; R01 HL071039-02/HL/NHLBI NIH HHS; R01 HL076784-05/HL/NHLBI NIH HHS; R01 HL077447-05/HL/NHLBI NIH HHS; R01 HL080124-05/HL/NHLBI NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Lipids |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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