Abstract 3148: Atrial Fibrillation Is Associated With Increased Risk Of Fatal And Non-fatal Cardiovascular Events In Patients With Heart Failure And Preserved Ejection Fraction - Findings From The Irbesartan In Heart Failure With Preserved Systolic Function Trial (I-PRESERVE)

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Michael R Zile ◽  
Michel Komajda ◽  
Robert McKelvie ◽  
John McMurray ◽  
Mark Donovan ◽  
...  

Background: Atrial fibrillation (AF, documented by ECG) is present in 15% of patients with heart failure and a reduced LV ejection fraction (HF-REF) and is an independent predictor of cardiovascular (CV) events. The prevalence of AF in patients with HF and preserved EF (HF-PEF) and whether AF is an independent predictor of CV outcomes in HF-PEF have not been defined. Methods: The Irbesartan in Heart Failure with Preserved Systolic Function Trial (I-PRESERVE) randomized 4128 patients with an EF ≥ 45% to receive Irbesartan or placebo. The prevalence of AF was established by ECG at randomization. The “ primary” outcome (475 events/3796 patients) of all-cause mortality or CV hospitalization (myocardial infarction, stroke, worsening heart failure, atrial or ventricular arrhythmia, unstable angina) and a “ secondary” outcome (294 events/3796 patients) of HF mortality and HF hospitalizations were compared over one year of follow-up between patients with and without AF. The independent predictive role of AF was examined in a multivariable model (including symptoms, clinical history, CV examination, biochemistry, hematology). Results: In I-PRESERVE, 16% of patients had AF by ECG at randomization. Patients with AF, compared to patients without AF, were older (74 ± 0.3 vs 71 ± 0.1 yrs, mean ± SEM), less often female (54% vs 62%), had lower EF (58 ± 0.4% vs 60 ± 0.2%), lower eGFR (68 ± 0.8 vs 73 ± 0.4), higher incidence of previous HF hospitalization (61% vs 41%), less frequent history of hypertension and MI (84 & 17% vs 89 & 25%), lower systolic BP (134 ± 0.6 vs 137 ± 0.3 mmHg), higher heart rate (76 ± 0.5 vs 71 ± 0.2 BPM), all p < 0.05. The primary and secondary outcomes occurred in 19 & 15% of patients with AF and 12 & 6% of patients without AF at 1 year. In a multivariate analysis AF remained a significant predictor of increased risk of the primary (Hazard Ratio, HR 1.33 [95% CI 1.07, 1.65]) and secondary (HR 1.81 [95% CI 1.40, 2.33]) outcomes. Conclusions: At randomization to I-PRESERVE, the prevalence of AF by ECG in HF-PEF patients was similar to patients with HF-REF in previous studies. HF-PEF patients with AF had a significantly worse outcome than those without AF and this increased risk of fatal and non-fatal CV events was independent of other factors associated with a worse prognosis.

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Robert S McKelvie ◽  
Michel Komajda ◽  
Barry M Massie ◽  
John J McMurray ◽  
Michael R Zile ◽  
...  

Background: Diabetes mellitus (DM), present in about a quarter of heart failure (HF) patients with reduced ejection fraction (HF-REF), is associated with increased risk of fatal and non-fatal cardiovascular (CV) events. Less is known about the prevalence and impact of DM in HF patients with preserved ejection fraction (HF-PEF). The prevalence and effect of DM on clinical outcomes were examined in patients enrolled in the Irbesartan in Heart Failure with Preserved Systolic Function Trial (I-PRESERVE). Methods: The I-PRESERVE trial randomized 4128 HF-PEF patients (EF≥45%) to receive irbesartan or placebo. The primary outcome of time to all-cause mortality or CV hospitalization (myocardial infarction [MI], stroke, worsening HF, atrial or ventricular arrhythmia or unstable angina) was compared between patients with and without DM over one year of follow-up. A combined HF endpoint (HF mortality and hospitalization) was also evaluated. Comparison of the outcomes between patients with and without DM was expressed as a hazard ratio (HR). The independent predictive role of DM was examined in a multivariable model (which included symptoms, signs, clinical history, CV examination, biochemical, and hematological findings). Results: In I-PRESERVE 27% had a history of DM at baseline. DM patients more often had a body mass index ≥30 (51% vs 38%), history of stroke (12% vs 9%), history of MI (28% vs 22%), estimated glomerular filtration rate <60 ml/min/1.73m 2 (34% vs 29%), and pulmonary congestion on chest x-ray (46% vs 38%). In patients with DM, 17% and 11% had primary and HF events, respectively within 1 year; for patients without DM, 11% and 6% had primary and HF events. In a multivariate analysis DM remained a significant predictor of primary events (HR 1.48; 95% CI 1.22, 1.79) or HF events (HR 1.67; 95% CI 1.32, 2.12). Conclusions: The prevalence of DM in HF-PEF is similar to that reported in HF-REF. HF-PEF patients with DM have a significantly worse outcome than those without DM and this increased risk is independent of other factors associated with a worse prognosis.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
O.M Aldaas ◽  
F Lupercio ◽  
C.L Malladi ◽  
P.S Mylavarapu ◽  
D Darden ◽  
...  

Abstract Background Catheter ablation improves clinical outcomes in symptomatic atrial fibrillation (AF) patients with heart failure (HF) with reduced ejection fraction (HFrEF). However, the role of catheter ablation in HF patients with a preserved ejection fraction (HFpEF) is less clear. Purpose To determine the efficacy of catheter ablation of AF in patients with HFpEF relative to those with HFrEF. Methods We performed an extensive literature search and systematic review of studies that compared AF recurrence at one year after catheter ablation of AF in patients with HFpEF versus those with HFrEF. Risk ratio (RR) 95% confidence intervals were measured using the Mantel-Haenszel method for dichotomous variables, where a RR&lt;1.0 favors the HFpEF group. Results Four studies with a total of 563 patients were included, of which 312 had HFpEF and 251 had HFrEF. All patients included were undergoing first time catheter ablation of AF. Patients with HFpEF experienced similar recurrence of AF one year after ablation on or off antiarrhythmic drugs compared to those with HFrEF (RR 0.87; 95% CI 0.69–1.10, p=0.24), as shown in Figure 1. Recurrence of AF was assessed with electrocardiography, Holter monitoring, and/or event monitoring at scheduled follow-up visits and final follow-up. Conclusion Based on the results of this meta-analysis, catheter ablation of AF in patients with HFpEF appears as efficacious in maintaining sinus rhythm as in those with HFrEF. Funding Acknowledgement Type of funding source: None


Heart ◽  
2020 ◽  
Vol 106 (15) ◽  
pp. 1160-1168 ◽  
Author(s):  
Mi Kyoung Son ◽  
Jin Joo Park ◽  
Nam-Kyoo Lim ◽  
Won-Ho Kim ◽  
Dong-Ju Choi

ObjectiveTo determine the prognostic value of atrial fibrillation (AF) in patients with heart failure (HF) and preserved, mid-range or reduced ejection fraction (EF).MethodsPatients hospitalised for acute HF were enrolled in the Korean Acute Heart Failure registry, a prospective, observational, multicentre cohort study, between March 2011 and February 2014. HF types were defined as reduced EF (HFrEF, LVEF <40%), mid-range EF (HFmrEF, LVEF 40%–49%) or preserved EF (HFpEF, LVEF ≥50%).ResultsOf 5414 patients enrolled, HFrEF, HFmrEF and HFpEF were seen in 3182 (58.8%), 875 (16.2%) and 1357 (25.1%) patients, respectively. The prevalence of AF significantly increased with increasing EF (HFrEF 28.9%, HFmrEF 39.8%, HFpEF 45.2%; p for trend <0.001). During follow-up (median, 4.03 years; IQR, 1.39–5.58 years), 2806 (51.8%) patients died. The adjusted HR of AF for all-cause death was 1.06 (0.93–1.21) in the HFrEF, 1.10 (0.87–1.39) in the HFmrEF and 1.22 (1.02–1.46) in the HFpEF groups. The HR for the composite of all-cause death or readmission was 0.97 (0.87–1.07), 1.14 (0.93–1.38) and 1.03 (0.88–1.19) in the HFrEF, HFmrEF and HFpEF groups, respectively, and the HR for stroke was 1.53 (1.03–2.29), 1.04 (0.57–1.91) and 1.90 (1.13–3.20), respectively. Similar results were observed after propensity score matching analysis.ConclusionsAF was more common with increasing EF. AF was seen to be associated with increased mortality only in patients with HFpEF and was associated with an increased risk of stroke in patients with HFrEF or HFpEF.Trial registration numberNCT01389843


Author(s):  
Rengin Cetin Guvenc ◽  
Tolga Sinan Guvenc ◽  
Yuksel Cavusoglu ◽  
Ahmet Temizhan ◽  
Mehmet Birhan YILMAZ

Background: While many risk models have been developed to predict prognosis in heart failure (HF), these models are rarely useful for the clinical practitioner as they include multiple variables that might be time-consuming to obtain, they are usually difficult to calculate and they may suffer from statistical overfitting. Present study aimed to investigate whether a simpler model, namely ACEF-MDRD score, could be used for predicting one-year mortality in HF patients. Methods: 748 cases within the SELFIE-HF registry had complete data to calculate ACEF-MDRD score. Patients were grouped into tertiles for analyses. Results: Significantly more patients within the ACEF-MDRDhigh tertile (30.0%) died within one year, as compared to other tertiles (10.8% and 16.1%, respectively, for ACEF-MDRDlow and ACEF-MDRDmed, p<0.001 for both comparisons). There was a stepwise decrease in one-year survival as ACEF-MDRD score increased (log-rank p<0.001). ACEF-MDRD was an independent predictor of survival after adjusting for other variables (OR: 1.14, 95%CI:1.04 – 1.24, p=0.006). ACEF-MDRD score offered similar accuracy to GWTG-HF score for prediction of one-year mortality (p=0.14). Conclusions: ACEF-MDRD is a predictor of mortality in patients with HF, and its usefulness is comparable to similar yet more complicated models.


2019 ◽  
Vol 2019 ◽  
pp. 1-14
Author(s):  
Igor Zhirov ◽  
Natalia Safronova ◽  
Yulia Osmolovskaya ◽  
Alina Alshevskaya ◽  
Andrey Moskalev ◽  
...  

Background. Atrial fibrillation (AF) and heart failure (HF) are tightly interrelated. The concurrence of these pathologies can aggravate the pathological process. The geographic and ethnic characteristics of patients may significantly affect the efficacy of different types of therapy and patients’ compliance. The objective of this study was to analyze how the features of the course of the diseases and management of HF + AF influence the clinical outcomes. Methods. The data of 1,003 patients from the first Russian register of patients with chronic heart failure and atrial fibrillation (RIF-CHF) were analyzed. The endpoints included hospitalization due to HF worsening, mortality, thromboembolic events, and hemorrhage. Predictors of unfavorable outcomes were analyzed separately for patients with HF and preserved ejection fraction (AF + HFpEF), midrange ejection fraction (AF + HFmrEF), and reduced ejection fraction (AF + HFrEF). Prevalence of HF + AF and compliance with long-term treatment of this pathology during one year were evaluated for each patient. Results. The study involved 39% AF + HFpEF patients, 15% AF + HFmrEF patients, and 46% AF + HFrEF patients. AF + HFpEF patients were significantly older than patients in two other groups (40.6% of patients were older than ≥75 years vs. 24.8%, respectively, p<0.001) and had the lowest rate of prior myocardial infarctions (25.3% vs. 46.1%, p<0.001) and the lowest adherence to rational therapy of HF (27.4% vs. 47.1%, p<0.001). AF + HFmrEF patients had the highest percentage of cases of HF onset after AF (61.3% vs. 49.2% in other patient groups, p=0.021). Among patients with AF + HFrEF, there was the highest percentage of males (74.2% vs. 41% in other patient groups, p<0.001) and the highest percentage of ever-smokers (51.9% vs. 29.4% in other patient groups, p<0.001). A total of 57.2% of patients were rehospitalized for decompensation of chronic heart failure within one year; the risk was the highest for AF + HFmrEF patients (66%, p=0.017). Reduced ejection fraction was associated with the increased risk of cardiovascular mortality (15.5% vs. 5.4% in other patient groups, p<0.001) rather than ischemic stroke (2.4% vs. 3%, p=0.776). Patients with AF + HFpEF had lower risk to achieve the combination point (stroke + IM + CV death) as compared to patients with AF + HFmrEF and AF + HFrEF (12.7% vs. 22% and 25.5%, p<0.001). Regression logistic analysis revealed that factors such as demographic characteristics, disease severity, and administered treatment had different effects on the risk of unfavorable outcomes depending on ejection fraction group. The clinical features and symptoms were found to be significant risk factors of cardiovascular mortality in AF + HFmrEF, while therapy characteristics were not associated with it. Conclusions. Each group of patients with different ejection fractions is characterized by its own pattern of factors associated with the development of unfavorable outcomes. The demographic and clinical characteristics of patients with midrange ejection fraction demonstrate that these patients need to be studied as a separate cohort.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
D.J Vazquez Andres ◽  
A Hernandez Vicente ◽  
M Diez Diez ◽  
M Gomez Molina ◽  
A Quintas ◽  
...  

Abstract Introduction Somatic mutations in hematopoietic cells are associated with age and have been associated with higher mortality in apparently healthy adults, especially due to atherosclerotic disease. In animal models, somatic mutations are associated with atherosclerosis progression and myocardial dysfunction, especially when gene TET2 is affected. Preliminary clinical data, referred to ischemic heart failure (HF), have associate the presence of these acquired mutations with impaired prognosis. Purpose To study the prevalence of somatic mutations in patients with heart failure with reduced ejection fraction (HFrEF) and their impact on long-term prognosis. Methods We studied a cohort of elderly patients (more than 60 years old) hospitalized with HFrEF (LVEF&lt;45%). The presence of somatic mutations was assessed using next generation sequencing (Illumina HiSeq 2500), with a mutated allelic fraction of at least 2% and a panel of 55 genes related with clonal hematopoiesis. Patients were followed-up for a median of three years. The study endpoint was a composite of death or readmission for worsening HF. Kaplan-Meier analysis (log-rank test) and Cox proportional hazards regression models were performed adjusting for age, sex and LVEF. Results A total of 62 patients (46 males (74.2%), age 74±7.5 years) with HFrEF (LVEF 29.7±7.8%) were enrolled in the study. The ischemic etiology was present in 54% of patients. Somatic mutations in Dnmt3a or Tet2 were present in 11 patients (17.7%). No differences existed in baseline characteristics except for a higher prevalence of atrial fibrillation in patients with somatic mutations (70% vs. 40%, p=0.007). During the follow-up period, 40 patients (64.5%) died and 38 (61.3%) had HF re-admission. The KM survival analysis for the combined event is shown in Figure 1. Compared with patients without somatic mutations and after adjusting for covariates, there was an increased risk of adverse outcomes when the somatic mutations were present (HR 3.6, 95% CI [1.6, 7.8], p=0.0014). This results remains considering death as a competing risk (Gray's test p=0.0097) and adjusting for covariates (HR = 2.21 95% CI [0.98, 5], p=0.0556). Conclusions Somatic mutation are present in patients with HFrEF and determine a higher risk of adverse events in the follow-up. Further studies are needed to assess the clinical implications of these findings. Figure 1 Funding Acknowledgement Type of funding source: None


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