Vascular calcification (VC) and myocardial hypertrophy are very common in patients on hemodialysis (HD). Previous studies have only assessed the cross-sec-tional associations of VC with left ventricu-lar mass (LVM) and the predictive value of individual factors. The present study inves-tigated the relationship between abdominal aortic calcification (AAC) and LVM increment over time, and the combined effect of these factors on the outcomes of HD patients. 104 HD patients were enrolled. AAC scores were evaluated on left lateral lumbar spine radio-graphs. Echocardiography was performed to calculate the LVM changes during a 2-year period. At baseline, 91 patients (87.5%) had varying degrees of AAC (median score 6.0, range 2.0 - 11.0). After 2 years, the mean LVM change was 7.49 g (range -5.03 - 26.00 g), and 68 patients (65%) had an increased LVM. Patients with higher baseline AAC scores had significantly larger LVM and LVM index increments. Patients with increased LVM had significantly higher baseline AAC scores and hemoglobin, serum phosphate, and hypersensitive C-reactive protein levels. Multiple stepwise linear regression demon-strated that the baseline AAC was the only independent predictor of increased LVM after 2 years. 28 patients (26.9%) died in the subsequent 5 years. Patients with low-er baseline AAC scores had a significantly higher cumulative survival rate than those with higher AAC scores. However, the LVM change (either alone or in combination with the AAC score) had no significant effect on survival. In conclusion, AAC is an indepen-dent predictor of LVM increase over time in HD patients. Prevention and treatment of VC may be a promising intervention target to improve left ventricular remodeling and outcomes in HD patients.