ejection fraction
pressure (LVFP) estimated using Doppler echocardiography and NT-pro BNP levels as well as several clinical and para-clinical characteristics in NYHA classes III-IV chronic heart failure patients with an ejection fraction (EF) of 40% or less.
pressure ( LVFP ) estimated using Doppler echocardiography and NT-pro BNP levels as well as several clinical and para-clinical characteristics in NYHA classes III-IV chronic heart failure patients with an ejection fraction ( EF ) of 40% or less .