Abstract: 【Abstract】 Objective To approach the correlation of radial augmentation index (AI) with abdominal aortic calcification (AAC), intima-media thickness (IMT) and cardiac function in maintenance hemodialysis patients.  Methods A total of 41 maintenance hemodialysis patients treated in the hemodialysis center of the First Hospital of Dalian Medical University were enrolled and investigated. Augmentation index was measured by HEM9001 tonometer, and semiquantification of calcium deposit in abdominal aorta as the percentage of aortic calcification volume (% ACV) was detected by spiral CT. We determined IMT, LVDd, LVPW, LVMI, IVS, E/A and EF by color Doppler sonography. Data are presented as mean±S.D. Relationships between variables were assessed by Pearson correlation analysis and multiple liner regression. 　Results Our study showed that AI significantly correlated to AAC (r=0.435, P＜0.05) and IMT (r=0.458, P＜0.05). AI also positively correlated to LVDd (r=0.537, P＜0.01), LVPW (r=0.469, P＜0.05), LVMI (r=0.59, P＜0.01) and IVS (r=0.478, P＜0.01), and negatively correlated to E/A (r=-0.523, P＜0.01) and EF (r=-0.534, P＜0.01). Multiple liner regression showed that gender, age, BMI, MPA, AAC, IMT, LVDd, LVPW, LVMI and IVS were the factors affecting AI.　Conclusion Radial augmentation index correlates to AAC, IMT and cardiac function in maintenance hemodialysis patients.

Key words: Radial augmentation index, Abdominal aortic calcification, Intima-media thickness;　Cardiac function, Maintenance hemodialysis