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Correlations between Arteriograph‐derived pulse wave velocity and aortic elastic properties by echocardiography
Author(s) -
Nemes Attila,
Takács Róbert,
Gavallér Henriette,
Várkonyi Tamás T.,
Wittmann Tibor,
Forster Tamás,
Lengyel Csaba
Publication year - 2011
Publication title -
clinical physiology and functional imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.608
H-Index - 67
eISSN - 1475-097X
pISSN - 1475-0961
DOI - 10.1111/j.1475-097x.2010.00980.x
Subject(s) - medicine , pulse wave velocity , cardiology , parasternal line , diastole , aorta , aortic valve , blood pressure
Summary Introduction: There is an increased scientific interest on the evaluation of parameters characterizing aortic elasticity. The current study was designed to compare two characteristics of aortic distensibility: Arteriograph‐derived pulse wave velocity (PWV) and augmentation index standardized to 80 per minutes heart rate (AIx80) and aortic elastic properties by echocardiography. Methods: The study comprised 21 adult healthy volunteers. In all cases, systolic and diastolic ascending aortic diameters were recorded during transthoracic echocardiography in M‐mode at a level 3 cm above the aortic valve from a parasternal long‐axis view. Using forearm blood pressure values, the following aortic elastic properties were calculated: aortic strain, distensibility and stiffness index. All patients were examined by Arteriograph at the same time, as well. Results: The Arteriograph‐derived AIx80 and PWV correlated with aortic strain ( R = −0·495, P = 0·023 and R = −0·527, P = 0·014, respectively) and aortic stiffness index ( R = 0·454, P = 0·039 and R = 0·608, P = 0·003, respectively). Aortic distensibility did not correlated with AIx80 ( R = −0·344, P = 0·127), only with PWV ( R = −0·593, P = 0·005, respectively). Discussion: Low to moderate correlations could be demonstrated between Arteriograph‐derived PWV and aortic elastic properties by echocardiography.