Black Americans are 30% more likely to suffer from heart disease compared to non-Hispanic whites, according to the CDC. And while socioeconomic and lifestyle factors invariably play a role, impaired vascular function may offer one other explanation why cardiovascular disease disproportionately affects Black Americans when compared with whites, researchers reported in the Journal of the American Heart Association. In the 2013 study, which involved 385 black and 470 white subjects, researchers used digital pulse amplitude tonometry (PAT) to measure reactive hyperemia index (or RHI, a measure of coronary endothelial dysfunction) and peripheral augmentation index (PAT-Alx). SphygmoCor applanation tonometry was then used to measure central augmentation index (C-Alx) and pulse wave velocity (PWV) to determine wave reflection and arterial stiffness. Even after adjusting for differences in CVD risk profiles, researchers found higher levels of arterial stiffness, greater wave reflection and more impaired endothelial function in black men compared with white. Significantly, these same results were reproduced in a sub-analysis of healthy black men. This study proves that inherent racial differences in vascular function may put black Americans at higher risk for CVD, independent of traditional CVD risk factors. Since poor arterial elasticity and weak endothelial function increase the likelihood of worse long term outcomes, the researchers concluded that non-invasive arterial analysis using digital vascular biomarkers are exceptionally useful tools for monitoring this high risk population.
XCEL Installation Package V1.3
XCEL V1.3 is the latest ATCOR release of the base XCEL software. It is a required installation for all clinical practice, academic research, and clinical trials.
XCEL Secure Data Option Installation Package
XCEL Secure Data Option software enables Part11 readiness for clinical practice, academic research, and clinical trials. Prior to install, confirm that the XCEL V1.3 software is fully installed prior to the XCEL Secure Installation Package. Contact Us for more information.
Calibration Kit Software
For customers who have the XCEL calibration kit, this software is used for the annual calibration of the SphygmoCor XCEL. The SphygmoCor XCEL Calibration Kit, sold separately, is required for this calibration procedure.