No other parameters examined predicted the development of allograft arteriosclerosis in the initial year posttransplant.

Conclusions: Paired studies that used intravascular ultrasound showed that early endothelial dysfunction predicts the development of allograft arteriosclerosis during the initial year posttransplant.

The relationship between early endothelial dysfunction and the development of allograft arteriosclerosis has not been analyzed serially with intravascular ultrasound in the same patients.