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Table 2 Comparison of baseline variables by outcome group: Primary outcome vs Event free subgroups

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

Variable Primary outcome group (n = 30) Event-free group (n = 70) p-value
LVOT VTI 8.0 8.5 0.039
Ejection fraction (%) 32.3 27.4 0.169
Doppler derived cardiac output (L/min) 2.29 2.44 0.217
Age, years 80.1 ± 11.3 70.7 ± 15.1 0.003
NYHA class (% in stage III or IV) 80% 48.60% 0.014
Hemoglobin, g/dL 12.7 ± 1.4 13.5 ± 2.2 0.030
Blood urea nitrogen, g/dL 33.8 ± 15.4 24.1 ± 12.5 0.001
GFR <60 ml/min 75.90% 53.10% 0.038
Pulmonary artery pressure, mmHg 53.0 ± 16.9 45.3 ± 12.6 0.019
  1. Primary outcome was met in 30 subjects (28 death and 2 LVADs); Event free subjects were those alive at one year of follow up from TTE and without requirement for mechanical circulatory support
  2. Abbrev: GFR glomerular filtration rate, LVOT VTI Left ventricular outflow tract velocity time integral, NYHA New York Heart Association