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Archives of cardiovascular diseases
Volume 103, n° 4
pages 227-235 (avril 2010)
Doi : 10.1016/j.acvd.2010.03.003
Received : 30 December 2009 ;  accepted : 4 Mars 2010
Impact of valvuloarterial impedance on left ventricular longitudinal deformation in patients with aortic valve stenosis and preserved ejection fraction
Impact de l’impédance valvulo-artérielle sur la déformation longitudinale du ventricule gauche de patients porteurs d’une sténose valvulaire aortique avec une fraction d’éjection préservée
 

Figure 1




Figure 1 : 

Scatter plots of the difference between two measurements of global longitudinal strain (GLS) and the mean values obtained by two measurements performed by the same observer (upper panel) and by two observers (lower panel).


Figure 2




Figure 2 : 

Relationship between global longitudinal strain (%) and (A) systemic arterial compliance; (B) systemic vascular resistance; (C) energy loss index; (D) valvuloarterial impedance; (E) E/Ea ratio; and (F) left ventricular end-diastolic volume (LVEDV) index. Systemic arterial compliance, systemic vascular resistance and valvuloarterial impedance were calculated using arm-cuff brachial blood pressure.


Figure 3




Figure 3 : 

Correlation between arm-cuff brachial systolic blood pressure (SBPb) and central aortic systolic blood pressure (SBPAo), derived by the application of a transfer function applied to radial pressure waveform recorded by the SphygmoCor® system (upper panel), and scatter plot of the difference between the two methods and the mean values obtained by the two methods (lower panel).

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