Response to Peripheral Augmentation Index and Wave Reflection in the Radial Artery

Peripheral augmentation index and wave reflection in the radial artery.

Peripheral Augmentation Index and Wave Reflection in the Radial Artery To the Editor: We were interested to read the recent article by Munir et al1 and congratulate them on making a valuable contribution to the field of pulse wave analysis. They and Payne and Webb, in their accompanying editorial,2 ponder why the late systolic shoulder (SBP2) corresponds so closely with central systolic blood p...

Aortic pulse wave velocity, reflection site distance, and augmentation index.

Augmentation index, left ventricular contractility, and wave reflection.

Augmentation index (AIx), a correlate of mortality, is thought to be influenced by left ventricular contractility and wave reflections. However, the relationship of AIx with left ventricular contractility changes has never been assessed, and the wave reflection theory has recently been questioned. This study sought to examine arterial waveform changes in response to reduced "wave reflection" an...

Limitations of Augmentation Index in the Assessment of Wave Reflection in Normotensive Healthy Individuals

OBJECTIVES Augmentation index (AIx) is widely used as a measure of wave reflection. We compared the relationship between AIx and age, height and sex with 'gold standard' measures of wave reflection derived from measurements of pressure and flow to establish how well AIx measures wave reflection. MATERIALS AND METHODS Measurements of carotid pressure and flow velocity were made in the carotid ...

Relationship Between Serum Total Testosterone Concentration and Augmentation Index at Radial Artery in Japanese Postmenopausal Patients

BACKGROUND The significance of testosterone as a risk factor for cardiovascular disease (CVD) in females is controversial. This cross-sectional study aimed to elucidate the relationship between serum total testosterone concentration (T-T) and augmentation index at the radial artery (r-AIx) as a marker of arterial function in Japanese postmenopausal patients. METHODS A total of 447 postmenopau...