One hundred fifty-four patients with AS were classified into a group with abnormal (Abn) LV function (n = 47, 0.45 ≤ Tei index) and a group with normal (Nor) LV function (n = 107, Tei index < 0.45). The pre- and postoperative echocardiographic variables including LV dimension, LV wall thickness, and LV mass regression as well as 6-year survival were compared between the two groups.
There was a significant difference in both absolute and relative LV mass index (LVMI) regression (P = 0.004 and 0.0007). Multiple linear regression analysis revealed that the preoperative LVMI, Tei index, and follow-up period were independent predictors of LVMI regression after AVR. Thirteen patients died (valve-related death in 5). Although the overall survival rate in the Nor-LV group (92.8 % ) was significantly better than that in the Abn-LV group (71.6 % ), there was no significant difference in survival free from valve-related death.
Preoperative Tei index can be one of the significant predictors of LVMI regression and overall survival after AVR.