Patients with LEF or PLF AS have a higher operative risk, but pre-operative risk score accounted only for LEF and lower LVEF. Patients with LEF had the worst survival outcome, whereas patients with PLF and normal flow had similar survival rates after AVR. As a major predictor of perioperative mortality, SVi should be integrated in AS patients' pre-operative evaluation.

No abstract

These results do not support decreasing the AVA threshold value for severity to 0.8 cm(2) and they confirm that AVR is associated with improved survival in a substantial number of patients with discordant aortic grading.