scholarly journals Reduction in Left Ventricular Ejection Fraction is Associated with Subsequent Cardiac Events in Outpatients with Chronic Heart Failure

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Yoshitaka Okuhara ◽  
Masanori Asakura ◽  
Yoshiyuki Orihara ◽  
Daisuke Morisawa ◽  
Yuki Matsumoto ◽  
...  

AbstractLeft ventricular ejection fraction (LVEF) is critical for determining the prognosis and treatment of patients with heart failure (HF). However, the influence of serial LVEF changes in patients with stable chronic HF (CHF) has not yet been completely investigated. We analyzed data of 263 outpatients with CHF from the J-MELODIC study cohort and evaluated the frequency of cardiac events. We stratified patients into tertiles based on the relative difference in LVEF in 1 year and that at baseline. We found a significant difference in the cardiac event rate among the three groups (log-rank test, p = 0.042). We identified a relative 11% LVEF reduction as the optimal cutoff value based on the receiver operating characteristics analysis. LVEF (OR, 1.04; 95% CI, 1.01–1.07; p = 0.015) and E/e′ (OR, 1.06; 95% CI, 1.01–1.12; p = 0.023) at baseline were predictors of >11% LVEF reduction. After adjusting the variables including age and sex, >11% LVEF reduction was an independent predictor of subsequent cardiac events (HR, 5.79; 95% CI, 2.49–13.2; p < 0.001). In conclusion, patients with 1-year relative >11% LVEF reduction may have subsequent worsening outcomes. Such patients should be carefully followed-up as high risk population for development of cardiac events.

Author(s):  
Parisa Gholami ◽  
Shoutzu Lin ◽  
Paul Heidenreich

Background: BNP testing is now common though it is not clear if the test results are used to improve patient care. A high BNP may be an indicator that the left ventricular ejection fraction (LVEF) is low (<40%) such that the patient will benefit from life-prolonging therapy. Objective: To determine how often clinicians obtained a measure of LVEF (echocardiography, nuclear) following a high BNP value when the left ventricular ejection fraction (LVEF) was not known to be low (<40%). Methods and Results: We reviewed the medical records of 296 consecutive patients (inpatient or outpatient) with a BNP values of at least 200 pg/ml at a single medical center (tertiary hospital with 8 community clinics). A prior diagnosis of heart failure was made in 65%, while 42% had diabetes, 79% had hypertension, 59% had ischemic heart disease and 31% had chronic lung disease. The mean age was 73 ± 12 years, 75% were white, 10% black, 15% other and the mean BNP was 810 ± 814 pg/ml. The LVEF was known to be < 40% in 84 patients (28%, mean BNP value of 1094 ± 969 pg/ml). Of the remaining 212 patients without a known low LVEF, 161 (76%) had a prior LVEF >=40% ( mean BNP value of 673 ± 635 pg/ml), and 51 (24%) had no prior LVEF documented (mean BNP 775 ± 926 pg/ml). Following the high BNP, a measure of LVEF was obtained (including outside studies documented by the primary care provider) within 6 months in only 53% (113 of 212) of those with an LVEF not known to be low. Of those with a follow-up echocardiogram, the LVEF was <40% in 18/113 (16%) and >=40% in 95/113 (84%). There was no significant difference in mean initial BNP values between those with a follow-up LVEF <40% (872 ± 940pg/ml), >=40% (704 ± 737 pg/ml), or not done (661 ± 649 pg/ml, p=0.5). Conclusions: Follow-up measures of LVEF did not occur in almost 50% of patients with a high BNP where the information may have led to institution of life-prolonging therapy. Of those that did have a follow-up study a new diagnosis of depressesd LVEF was noted in 16%. Screening of existing BNP and LVEF data and may be an efficient strategy to identify patients that may benefit from life-prolonging therapy for heart failure.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Maciej Tysarowski ◽  
Nigri Rafael ◽  
Hyoeun Kim ◽  
Emad Aziz

Introduction: There is conflicting data on the effect of digoxin on all-cause mortality in patients with atrial fibrillation (AF), especially in patients with heart failure (HF). Hypothesis: We hypothesized that in patients with AF, mortality rates associated with digoxin treatment are different among patients with HF and without HF. Methods: We conducted a cohort study of hospitalized patients with AF assessing the effects of digoxin on all-cause mortality. We divided patients into two groups: with and without HF. We performed Cox regression analysis to assess hazard ratios (HR) for all-cause mortality depending on digoxin treatment and used propensity score matching to adjust for differences in background characteristics between treatment groups. Results: Among 2179 consecutive patients, the median age was 73 ± 14 (table), 53% patient were male, 49% had HF, 19% were discharged on digoxin. Median left ventricular ejection fraction in the cohort was 60 (IQR 40-65). Among patients with HF, 35% had preserved, 18% had mid-range and 48% had reduced left ventricular ejection fraction. The mean follow-up time was 3 ± 2.1 years. After adjustment, in patients with HF, there was no statistically significant difference in mortality between the digoxin subgroups ( A , HR=1.01 [95% CI 0.76 to 1.35], p=0.92). In contrast, after adjustment, in patients without HF there was a statistically significant increased mortality in the digoxin subgroup ( B , HR=2.23, [95% CI 1.42 to 3.51], p<0.001). Conclusions: Digoxin use was associated with increased mortality in patients with AF and without concomitant HF. This suggests that clinicians should be careful in prescribing digoxin for rate control in AF, especially in patients without concomitant HF.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M Seo ◽  
T Yamada ◽  
T Watanabe ◽  
T Morita ◽  
Y Furukawa ◽  
...  

Abstract Background Cardiac sympathetic nerve dysfunction, which is assessed by I-123 metaiodobenzylguanidine (MIBG) imaging, is associated with the poor outcomes in patients with heart failure (HF). Most of the literature on the use of 123I-MIBG imaging is based on planar images in patients with chronic HF and reduced left ventricular ejection fraction (HFrEF), because It is technically challenging to conduct precise 123I-MIBG SPECT analysis in globally denervated heart, which is frequently observed in HFrEF patients. There was no information available on cardiac sympathetic nerve dysfunction evaluated by cardiac MIBG SPECT imaging in acute decompensated HF (ADHF) patients with preserved left ventricular ejection fraction (HFpEF). Purpose We aimed to clarify the prognostic significance of 123I-MIBG SPECT myocardial imaging in ADHF patients with HFpEF. Methods We enrolled 183 patients who were admitted for ADHF with HFpEF, discharged with survival. All patients underwent cardiac MIBG imaging at the timing of discharge. The cardiac MIBG heart to mediastinum ratio (H/M) was calculated on the early image and the delayed image (late H/M). We studied 156 patients after excluding 27 patients whose MIBG SPECT reconstruction was difficult due to too low MIBG uptake or extracardiac accumulation interference. SPECT analysis on the delayed image was conducted by using CardioBull, a fully automated software for the quantification of I-123 MIBG SPECT. All of 17 regional tracer uptake were compared with normal control database. A scoring algorithm for the evaluation of low uptake employs a 5-point scoring system as 0–4 for normal, mildly abnormal, moderately abnormal, severe abnormal, and perfusion defect, respectively. The summed severity (SSS) scores were obtained by summing the score for all segments. SSS could range from 0 to 68. The endpoint of this study is cardiac events defined as the composite of unplanned heart failure hospitalization and cardiac death. Results During a mean follow up period of 2.4±1.6 years, 60 patients reached cardiac events. SSS was significantly high in patients with than without cardiac events (20 [10–27] vs 7 [4–16], p&lt;0.0001). SSS (p&lt;0.0001) was significantly associated with cardiac events after multivariable Cox adjustment of age, sex, creatinine and log-transformed BNP level, although late H/M showed the significant association with the endpoint at the univariate Cox analysis. Kaplan-Meier analysis showed that patients with high SSS (&gt;10, defined by median) had significantly greater risk of cardiac event (56% vs 21%, Hazard ratio: 3.56 (2.00–6.33, p&lt;0.0001). ROC curve analysis showed that area under the curve (AUC) of SSS was 0.746 [95% CI:0.670, 0.812], which was significantly higher than that of late H/M (0.618 [95% CI:0.537, 0.695]) (p=0.0159). Conclusion Cardiac MIBG SPECT imaging was useful for risk stratification in ADHF patients with HFpEF. Funding Acknowledgement Type of funding source: None


Stroke ◽  
2016 ◽  
Vol 47 (8) ◽  
pp. 2031-2037 ◽  
Author(s):  
Marco R. Di Tullio ◽  
Min Qian ◽  
John L.P. Thompson ◽  
Arthur J. Labovitz ◽  
Douglas L. Mann ◽  
...  

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