scholarly journals Mild systolic dysfunction in heart failure (left ventricular ejection fraction >35%): Baseline characteristics, prognosis and response to therapy in the vasodilator in heart failure trials (V-HeFT)

1996 ◽  
Vol 27 (3) ◽  
pp. 642-649 ◽  
Author(s):  
Peter Carson ◽  
Gary Johnson ◽  
Ross Fletcher ◽  
Jay Cohn
Author(s):  
Khadijah Breathett ◽  
Larry A Allen ◽  
James Udelson ◽  
Gordon Davis ◽  
Michael Bristow

Background: Left ventricular remodeling, as commonly measured by left ventricular ejection fraction (LVEF), is associated with clinical outcomes. Although change in LVEF over time would be anticipated to reflect response to therapy and subsequent clinical course, systematic serial measurement of LVEF is inconsistent in observational settings, and has not been systematically reported in large-scale clinical trials. Thus the incremental prognostic value of change in LVEF has not been well characterized. Methods: The Beta-Blocker Evaluation of Survival Trial (BEST, 1995-1999) collected LVEF by radionuclide ventriculography at baseline and at 3 and 12-months after randomization. Change in LVEF was defined as change from baseline to 12-month unless that value was missing, in which case the 3-month value was used. We built a series of multivariable models including 16 commonly used clinical parameters plus change in LVEF for predicting the following time to first event endpoints: all-cause mortality (ACM), cardiovascular mortality (CVM), heart failure hospitalization (HFH), and ACM or HFH. Results: Among 2,484 patients with a mean follow-up of 2-years, serial improvement in LVEF by ≥5% was the second most significant predictor (behind baseline creatinine) of outcomes (Table). LVEF change ≥5% correlated with a modest increase in C-index compared to traditional predictors (Table). Conclusions: Serial evaluation for change ≥5% LVEF predicts both survival and HFH. Further validation of the incremental prognostic value of change in LVEF for important clinical decisions, including frequency of cardiac imaging, across various heart failure populations is needed.


2011 ◽  
pp. 62-70
Author(s):  
Lien Nhut Nguyen ◽  
Anh Vu Nguyen

Background: The prognostic importance of right ventricular (RV) dysfunction has been suggested in patients with systolic heart failure (due to primary or secondary dilated cardiomyopathy - DCM). Tricuspid annular plane systolic excursion (TAPSE) is a simple, feasible, reality, non-invasive measurement by transthoracic echocardiography for evaluating RV systolic function. Objectives: To evaluate TAPSE in patients with primary or secondary DCM who have left ventricular ejection fraction ≤ 40% and to find the relation between TAPSE and LVEF, LVDd, RVDd, RVDd/LVDd, RA size, severity of TR and PAPs. Materials and Methods: 61 patients (36 males, 59%) mean age 58.6 ± 14.4 years old with clinical signs and symtomps of chronic heart failure which caused by primary or secondary DCM and LVEF ≤ 40% and 30 healthy subject (15 males, 50%) mean age 57.1 ± 16.8 were included in this study. All patients and controls were underwent echocardiographic examination by M-mode, two dimentional, convensional Dopler and TAPSE. Results: TAPSE is significant low in patients compare with the controls (13.93±2.78 mm vs 23.57± 1.60mm, p<0.001). TAPSE is linearly positive correlate with echocardiographic left ventricular ejection fraction (r= 0,43; p<0,001) and linearly negative correlate with RVDd (r= -0.39; p<0.01), RVDd/LVDd (r=-0.33; p<0.01), RA size (r=-0.35; p<0.01), TR (r=-0.26; p<0.05); however, no correlation was found with LVDd and PAPs. Conclusions: 1. Decreased RV systolic function as estimated by TAPSE in patients with systolic heart failure primary and secondary DCM) compare with controls. 2. TAPSE is linearly positive correlate with LVEF (r= 0.43; p<0.001) and linearly negative correlate with RVDd (r= -0.39; p<0.01), RVDd/LVDd (r=-0.33; p<0.01), RA size (r=-0.35; p<0.01), TR (r=-0.26; p<0.05); however, no correlation is found with LVDd and PAPs. 3. TAPSE should be used routinely as a simple, feasible, reality method of estimating RV function in the patients systolic heart failure DCM (primary and secondary).


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