Augmentation Index and Pulse Wave Velocity--Agreement of Two Indicators and Relationships to Blood Pressures.

AIMS: The purpose of the study was to investigate the agreement between carotid-femoral pulse wave velocity (cfPWV) and augmentation index adjusted at heart rate 75 bpm (AI@75) and to examine the relationship of AI@75 and cfPVW to demographic factors and blood pressures (BPs) in Korean Americans.

METHODS: This study was a secondary analysis of a previous data setfrom 102 Korean Americans. AI@75 and cfPWV were measured using the SphygmoCor equipment. Age, gender, height, body weight and brachial BPs were included in the analysis.

RESULT AND CONCLUSION: cfPWV and AI@7S showed a good agreement. DBP was independently associated with both cfPWV (p=.022) and AI@75 (p<.001). Although PP is considered a surrogate measure of arterial stiffness, it was related to neither cfPWV nor AI@75 in our healthy middle-aged Korean Ameri- cans. Unlike cfPWV, AI@75 should be measured and analyzed carefully considering height since height was independently related to AI@75 (p<.001).