From: Left ventricular outflow tract velocity time integral outperforms ejection fraction and Doppler-derived cardiac output for predicting outcomes in a select advanced heart failure cohort
Lowest tertile (LVOT VTI < 8.1, n = 34) vs Upper 2/3 s study population (n = 66)
P-value
Unadjusted analysis
4.755 (CI 1.576 - 14.348)
0.006
Adjusted analysis*
12.680 (CI 2.638 – 60.949)
0.002