• Oladipupo Olafiranye, Ghazanfar Qureshi, Louis Salciccioli, Kinda Vernon-Jones, Charles Philip, John Kassotis, and Jason M Lazar.
• Division of Cardiovascular Medicine, State University of New York Downstate Medical Center, 450 Clarkson Avenue, Brooklyn, NY, USA.
• Angiology. 2009 Feb 1;60(1):82-6.

Backgroundincreased arterial stiffness is a predictor of cardiovascular events. The stroke volume (SV) to pulse pressure (PP) ratio is an estimate of arterial capacitance. Pulse wave velocity (PWV) is a measure of arterial stiffness. This study evaluated the effect of left ventricular (LV) SV on the SV/PP-PWV relationship.Methods97 patients had applanation tonometry and echocardiography to measure arterial capacitance (SV/PP), PWV, and central aortic pressure.Results50 patients had normal SV and 47 had low SV. For all patients, PWV inversely correlated with SV/PP. PWV and SV/PP correlated more strongly in the normal SV group than in the low SV group. Aortic PP was significantly correlated with PWV in all patients, in the normal SV group, and in the low SV group.Conclusioneffective arterial capacitance correlates with PWV. The presence of decreased SV weakens the relationship.

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