Sex Differences in the Outcomes of Elderly Patients With Heart Failure With Preserved Ejection Fraction

Abstract Background: It has been shown the impacts of sex on patients' outcomes with preserved ejection fraction (HFpEF), but little is known about the impacts of sex on elderly patients with HFpEF.Methods: A secondary analysis was conducted to evaluate the impacts of sex on outcomes of patients who were ≥70 years of age with HFpEF from the Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist Trial (TOPCAT). The primary outcome was composed of cardiovascular (CV) mortality, HF hospitalization. Secondary outcomes included all-cause mortality and all-cause hospitalization. Cox regression models were used to determine sex differences in outcomes.Results: A total of 1619 patients were included: 898 (55.5%) women and 721 (44.5%) men. Their age ranged from 70 to 94 years, similar between women and men. Women had fewer comorbidities than men. The rate of primary outcome was lower in women than in men (18.9% vs. 28.1%, p=0.002), including CV mortality (10.6% vs. 15.4%, p=0.039) and HF hospitalization (13.5% vs. 19.0%, p=0.033). After adjustment for baseline characteristic, the Cox regression analysis showed that woman was a protective factor for CV mortality (hazard ratio [HR] 0.53, 95% confidence interval [CI] 0.40-0.73), HF hospitalization (HR 0.71, 95% CI 0.55-0.93) and all-cause mortality (HR 0.59, 95% CI 0.47-0.75). Although a significant reduction in all-cause mortality associated with spironolactone in women was observed even after adjustment (HR: 0.68; 95% CI: 0.48-0.96; p=0.028), there is not a significant multivariate sex-treatment interaction (p interaction=0.190).Conclusion: Among elderly patients with HFpEF, women had fewer comorbidities and better outcomes. Clinical trial registration: NCT00094302 (TOPCAT). Registered 15 October 2004, https://www.clinicaltrials.gov/ct2/show/NCT00094302

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High Plasma Docosahexaenoic Acid Associated to Better Prognoses of Patients with Acute Decompensated Heart Failure with Preserved Ejection Fraction

Nutrients ◽

10.3390/nu13020371 ◽

2021 ◽

Vol 13 (2) ◽

pp. 371

Author(s):

Naoaki Matsuo ◽

Toru Miyoshi ◽

Atsushi Takaishi ◽

Takao Kishinoue ◽

Kentaro Yasuhara ◽

...

Keyword(s):

Heart Failure ◽

Docosahexaenoic Acid ◽

Ejection Fraction ◽

Primary Outcome ◽

Cox Regression ◽

Risk Index ◽

Preserved Ejection Fraction ◽

Cox Regression Analysis ◽

Nutritional Risk Index ◽

All Cause Mortality

The clinical relevance of polyunsaturated fatty acids (PUFAs) in heart failure remains unclear. The aim of this study was to investigate the association between PUFA levels and the prognosis of patients with heart failure with preserved ejection fraction (HFpEF). This retrospective study included 140 hospitalized patients with acute decompensated HFpEF (median age 84.0 years, 42.9% men). The patients’ nutritional status was assessed, using the geriatric nutritional risk index (GNRI), and their plasma levels of eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), arachidonic acid (AA), and dihomo-gamma-linolenic acid (DGLA) were measured before discharge. The primary outcome was all-cause mortality. During a median follow-up of 23.3 months, the primary outcome occurred in 37 patients (26.4%). A Kaplan–Meier analysis showed that lower DHA and DGLA levels, but not EPA or AA levels, were significantly associated with an increase in all-cause death (log-rank; p < 0.001 and p = 0.040, respectively). A multivariate Cox regression analysis also revealed that DHA levels were significantly associated with the incidence of all-cause death (HR: 0.16, 95% CI: 0.06–0.44, p = 0.001), independent of the GNRI. Our results suggest that low plasma DHA levels may be a useful predictor of all-cause mortality and potential therapeutic target in patients with acute decompensated HFpEF.

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Sex Differences in Characteristics and Outcomes in Elderly Heart Failure Patients With Preserved Ejection Fraction: A Post-hoc Analysis From TOPCAT

Frontiers in Cardiovascular Medicine ◽

10.3389/fcvm.2021.721850 ◽

2021 ◽

Vol 8 ◽

Author(s):

Jiaxing Sun ◽

Shi Tai ◽

Yanan Guo ◽

Liang Tang ◽

Hui Yang ◽

...

Keyword(s):

Heart Failure ◽

Sex Differences ◽

Elderly Patients ◽

Cardiac Function ◽

Patient Outcomes ◽

Cox Regression ◽

Preserved Ejection Fraction ◽

All Cause Mortality ◽

Baseline Characteristics ◽

The Impact

Introduction: Although the impact of sex on patient outcomes for heart failure (HF) with preserved ejection fraction (HFpEF) has been reported, it is still unclear whether this impact is applicable for elderly patients with HFpEF. This study was conducted as a secondary analysis from a large randomized controlled trial—The Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist Trial (TOPCAT)—to evaluate the impact of sex differences on the baseline characteristics and outcomes of HFpEF patients who were older than 70 years.Methods: Baseline characteristic of elderly patients were compared between men and women. Primary outcomes were cardiovascular (CV) mortality and HF-related hospitalization, whereas secondary outcomes were all-cause mortality and all-cause hospitalization. Cox regression models were used to determine the effect of sex differences on patient outcomes.Results: A total of 1,619 patients were included in the study: 898 (55.5%) women and 721 (44.5%) men. Age was similar between women and men. Women had fewer comorbidities but worse cardiac function than men. The rate of primary outcomes was lower in women than in men (18.4 vs. 27.5%; p < 0.001), including rate of CV mortality (8.9 vs. 14.8%; p < 0.001) and HF-related hospitalization (13.4 vs. 18.2%; p = 0.008). All-cause mortality was also lower in women than in men (15.6 vs. 25.4%; p < 0.001). After adjustment for baseline characteristics, Cox regression analysis showed that female sex was a protective factor for CV mortality [hazard ratio (HR): 0.53; 95% confidence interval (CI): 0.40–0.73], HF-related hospitalization (HR: 0.71; 95% CI: 0.55–0.93), and all-cause mortality (HR: 0.59; 95% CI: 0.47–0.75). Although spironolactone significantly reduced the rate of all-cause mortality in women even after adjusting for baseline characteristics (HR: 0.68; 95% CI: 0.48–0.96; p = 0.028), no significant multivariate association was noted between sex and treatment effects (p = 0.190).Conclusion: Among elderly patients with HFpEF, women had worse cardiac function but better survival and lower HF-related hospitalization rate than men.Clinical Trial Registration: NCT00094302 (TOPCAT). Registered October 15, 2004, https://www.clinicaltrials.gov/ct2/show/NCT00094302.

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Abstract 14922: Prognostic Value of Baseline BNP and NT-ProBNP and its Interaction With Spironolactone in Patients With Heart Failure and Preserved Ejection Fraction in the TOPCAT Trial

Circulation ◽

10.1161/circ.132.suppl_3.14922 ◽

2015 ◽

Vol 132 (suppl_3) ◽

Author(s):

Inder S Anand ◽

Scott D Solomon ◽

Brian Claggett ◽

Sanjiv J Shah ◽

Eileen O’Meara ◽

...

Keyword(s):

Heart Failure ◽

Ejection Fraction ◽

Primary Outcome ◽

Cox Regression ◽

Selection Criterion ◽

Adverse Outcomes ◽

Preserved Ejection Fraction ◽

Patient Selection Criterion ◽

Increased Risk ◽

Patients With Heart Failure

Background: Plasma natriuretic peptides (NP) are helpful in the diagnosis of heart failure (HF) with preserved ejection fraction (HFpEF) and predict adverse outcomes. Levels of NP beyond a certain cut-off level are often used as inclusion criteria in clinical trials to ensure that the patients have HF, and to select patients at higher risk. Whether treatments have a differential effect on outcomes across the spectrum of NP levels is unclear. In the I-Preserve trial a benefit of irbesartan on all outcomes was only seen in HFpEF patients with low but not high NP levels. We hypothesized that in the Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist (TOPCAT) trial, spironolactone might have a greater benefit in patients with lower NP levels. Methods and Results: BNP (n=468) or NT-proBNP (n=400) levels were available at baseline in 868 patients with HFpEF enrolled in the natriuretic peptide stratum (BNP ≥100 pg/mL or an NT- proBNP ≥360 pg/mL) of the TOPCAT trial. In a multi-variable Cox regression model, that included age, gender, region (Americas vs. Russia/Georgia), atrial fibrillation, diabetes, eGFR, BMI and heart rate, higher BNP or NT-proBNP as a continuous, standardized log-transformed variable or grouped by terciles (see Figure for BNP & NT-proBNP tercile values) was independently associated with an increased risk of the primary endpoint of cardiovascular mortality, aborted cardiac arrest, or hospitalization for heart failure (Figure-1). There was a significant interaction between the effect of spironolactone and baseline BNP or NT-proBNP terciles for the primary outcome (P=0.02, Figure-2), with greater benefit of the drug in the lower compared to higher NP terciles. Conclusions: The benefit of spironolactone in lower risk HFpEF patients may indicate effects of the drug on early, but not late higher-risk stage of the disease. These findings question the strategy of using elevated NP as a patient selection criterion in HFpEF trials.

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H2FPEF score predicts 1-year rehospitalisation of patients with heart failure with preserved ejection fraction

Postgraduate Medical Journal ◽

10.1136/postgradmedj-2019-137434 ◽

2020 ◽

pp. postgradmedj-2019-137434

Author(s):

Yifei Tao ◽

Wenjing Wang ◽

Jing Zhu ◽

Tao You ◽

Yi Li ◽

...

Keyword(s):

Heart Failure ◽

Regression Analysis ◽

Ejection Fraction ◽

Cox Regression ◽

Area Under The Curve ◽

Support Vector ◽

Preserved Ejection Fraction ◽

Cox Regression Analysis ◽

Non Invasive ◽

Patients With Heart Failure

BackgroundHeart failure with preserved ejection fraction (HFpEF) has received widespread attention in recent years. There is currently a lack of valuable predictors for the prognosis of this disease. Here, we aimed to identify a non-invasive scoring system that can effectively predict 1-year rehospitalisation for patients with HFpEF.MethodsWe included 151 consecutive patients with HFpEF in a prospective cohort study and investigated the association between H2FPEF score and 1-year readmission for heart failure using multivariate Cox regression analysis.ResultsOur findings indicated that obesity, age >70 years, treatment with ≥2 antihypertensives, echocardiographic E/e’ ratio >9 and pulmonary artery pressure >35 mm Hg were independent predictors of 1-year readmission. Three models (support vector machine, decision tree in R and Cox regression analysis) proved that H2FPEF score could effectively predict 1-year readmission for patients with HFpEF (area under the curve, 0.910, 0.899 and 0.771, respectively; p<0.001).ConclusionOur study demonstrates that the H2FPEF score has excellent predictive value for 1-year rehospitalisation of patients with HFpEF.

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Left atrial pressure overload and prognosis in elderly patients with heart failure and preserved ejection fraction: a prospective multicenter observational study

BMJ Open ◽

10.1136/bmjopen-2020-044605 ◽

2021 ◽

Vol 11 (9) ◽

pp. e044605

Author(s):

Shiro Hoshida ◽

Koichi Tachibana ◽

Yukinori Shinoda ◽

Tomoko Minamisaka ◽

Takahisa Yamada ◽

...

Keyword(s):

Heart Failure ◽

Ejection Fraction ◽

Elderly Patients ◽

Sinus Rhythm ◽

Left Atrial ◽

Pressure Overload ◽

Volume Index ◽

Preserved Ejection Fraction ◽

Patients With Heart Failure ◽

All Cause Mortality

ObjectivesThe severity of diastolic dysfunction is assessed using a combination of several indices of left atrial (LA) volume overload and LA pressure overload. We aimed to clarify which overload is more associated with the prognosis in patients with heart failure and preserved ejection fraction (HFpEF).SettingA prospective, multicenter observational registry of collaborating hospitals in Osaka, Japan.ParticipantsWe enrolled hospitalised patients with HFpEF showing sinus rhythm (men, 79; women, 113). Blood tests and transthoracic echocardiography were performed before discharge. The ratio of diastolic elastance (Ed) to arterial elastance (Ea) was used as a relative index of LA pressure overload.Primary outcome measuresAll-cause mortality and admission for heart failure were evaluated at >1 year after discharge.ResultsIn the multivariable Cox regression analysis, Ed/Ea, but not LA volume index, was significantly associated with all-cause mortality or admission for heart failure (HR 2.034, 95% CI 1.059 to 3.907, p=0.032), independent of age, sex, and the serum N-terminal pro-brain natriuretic peptide (NT-proBNP) level. In patients with a higher NT-proBNP level, the effect of higher Ed/Ea on prognosis was prominent (p=0.015).ConclusionsEd/Ea, an index of LA pressure overload, was significantly associated with the prognosis in elderly patients with HFpEF showing sinus rhythm.Trial registration numberUMIN000021831.

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Predictive Value of HFA-PEFF Score in Patients With Heart Failure With Preserved Ejection Fraction

Frontiers in Cardiovascular Medicine ◽

10.3389/fcvm.2021.656536 ◽

2021 ◽

Vol 8 ◽

Author(s):

Yuxi Sun ◽

Jinping Si ◽

Jiaxin Li ◽

Mengyuan Dai ◽

Emma King ◽

...

Keyword(s):

Heart Failure ◽

New York ◽

Ejection Fraction ◽

Roc Analysis ◽

Cox Regression ◽

Nyha Class ◽

Area Under The Curve ◽

Heart Association ◽

Preserved Ejection Fraction ◽

All Cause Mortality

Aims: HFA-PEFF score has been proposed for diagnosing heart failure with preserved ejection fraction (HFpEF). Currently, there are only a limited number of tools for predicting the prognosis. In this study, we evaluated whether the HFA-PEFF score can predict mortality in patients with HFpEF.Methods: This single-center, retrospective observational study enrolled patients diagnosed with HFpEF at the First Affiliated Hospital of Dalian Medical University between January 1, 2015, and April 30, 2018. The subjects were divided according to their HFA-PEFF score into low (0–2 points), intermediate (3–4 points), and high (5–6 points) score groups. The primary outcome was all-cause mortality.Results: A total of 358 patients (mean age: 70.21 ± 8.64 years, 58.1% female) were included. Of these, 63 (17.6%), 156 (43.6%), and 139 (38.8%) were classified into the low, intermediate, and high score groups, respectively. Over a mean follow-up of 26.9 months, 46 patients (12.8%) died. The percentage of patients who died in the low, intermediate, and high score groups were 1 (1.6%), 18 (11.5%), and 27 (19.4%), respectively. A multivariate Cox regression identified HFA-PEFF score as an independent predictor of all-cause mortality [hazard ratio (HR):1.314, 95% CI: 1.013–1.705, P = 0.039]. A Cox analysis demonstrated a significantly higher rate of mortality in the intermediate (HR: 4.912, 95% CI 1.154–20.907, P = 0.031) and high score groups (HR: 5.291, 95% CI: 1.239–22.593, P = 0.024) than the low score group. A receiver operating characteristic (ROC) analysis indicated that the HFA-PEFF score can effectively predict all-cause mortality after adjusting for age and New York Heart Association (NYHA) class [area under the curve (AUC) 0.726, 95% CI 0.651–0.800, P = 0.000]. With an HFA-PEFF score cut-off value of 3.5, the sensitivity and specificity were 78.3 and 54.8%, respectively. The AUC on ROC analysis for the biomarker component of the score was similar to that of the total score.Conclusions: The HFA-PEFF score can be used both to diagnose HFpEF and predict the prognosis. The higher scores are associated with higher all-cause mortality.

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Abstract 12936: Impact of Mitral Regurgitation on Heart Failure Hospitalization and Mortality in Older Age Adults With a Preserved Ejection Fraction

Circulation ◽

10.1161/circ.142.suppl_3.12936 ◽

2020 ◽

Vol 142 (Suppl_3) ◽

Author(s):

Ginger Y Jiang ◽

Warren J Manning ◽

Lawrence Markson ◽

A. R Garan ◽

Marwa A Sabe ◽

...

Keyword(s):

Heart Failure ◽

Mitral Regurgitation ◽

Ejection Fraction ◽

Primary Outcome ◽

Secondary Outcome ◽

P Value ◽

Preserved Ejection Fraction ◽

Risk Of Death ◽

Increased Risk ◽

All Cause Mortality

Background: The effect of mitral regurgitation (MR) severity on heart failure (HF) hospitalization and mortality in individuals with a preserved ejection fraction (LVEF) and no prior HF history is uncertain. Methods: Transthoracic echocardiogram (TTE) reports from patients with an LVEF > 50% at our institution were linked to complete Medicare inpatient claims, 2003-2017. Patients with HF hospitalization within the 12 months prior to TTE were excluded. We evaluated the relationship of baseline MR severity and time to the composite of all-cause mortality or HF hospitalization using the Kaplan-Meier technique. Secondary outcomes included the individual components of all-cause mortality and HF hospitalization, adjusting for the competing risk of death with Fine-Gray methods. Results: A total of 18,315 individuals met inclusion criteria (77.6 ±7.7 years, 54.3% female). Over a median follow-up time of 6.5 (IQR 3.0 to 10.2) years, the primary endpoint occurred in 7566 individuals (50.6%) of whom 6,927 (37.8%) died and 1703 (13.9%) were admitted for HF at a median of 1.4 (IQR 0.2 to 4.3) years and 1.6 (IQR 0.2 to 4.3) years respectively ( Figure ). After multivariable adjustment, MR severity was not associated with the primary or secondary outcome at 1-, 3-, 5-, or 10-years after TTE (p > 0.05 for all). Mitral valve prolapse (MVP) was associated with decreased risk of the primary outcome at 1-year and 3-years (interaction p-value = 0.04 for both). Jet eccentricity did not impact the observed relationship (interaction p-value > 0.05). Conclusions: In this large, single institution echocardiographic study of individuals with preserved ejection fraction and no prior history of HF, MR severity was not associated with an increased risk of all-cause mortality or HF hospitalization. Presence of MVP was associated with decreased risk of the primary outcome with increasing MR severity.

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Abstract 15220: Development of a Prediction Model for Atrial Fibrillation in Patients With Heart Failure and Preserved Ejection Fraction: Secondary Analysis of Treatment of Preserved Cardiac Function Heart Failure With an Aldosterone Antagonist (topcat) Trial

Circulation ◽

10.1161/circ.142.suppl_3.15220 ◽

2020 ◽

Vol 142 (Suppl_3) ◽

Author(s):

Khaled Elkholey ◽

Zain Ul Abideen Asad ◽

Lampros Papadimitriou ◽

Udho THADANI ◽

Stavros Stavrakis

Keyword(s):

Heart Failure ◽

Atrial Fibrillation ◽

High Risk ◽

Ejection Fraction ◽

Risk Score ◽

Cox Regression ◽

Risk Groups ◽

Preserved Ejection Fraction ◽

Cox Regression Analysis ◽

Increased Risk

Background: Atrial fibrillation (AF) is a common comorbidity in heart failure with preserved ejection fraction (HFpEF) and portends an increased risk of cardiovascular events. We sought to identify predictors and develop a risk score of incident AF among patients with HFpEF. Methods: This was an exploratory, post-hoc analysis of the TOPCAT trial. Patients without known AF were included. Cox regression was used to identify independent predictors of incident AF. A risk score was derived from the weighed sum of the regression coefficients of each independent risk factor in the final model using Cox regression analysis. Results: A total of 2174 patients (mean age 67.0±9.4 years; female 55%) without known AF at baseline were included. During a median follow-up of 3 years, 102 (4.7%) patients developed new onset AF. Diabetes (HR=2.1, 95% CI 1.4-3.1; p=0.0002), peripheral arterial disease (HR=2.0, 95% CI 1.2-3.4; p=0.006), elevated (>144meq/dL) sodium (HR=2.1, 95% CI 1.4-3.1; p=0.0002) independently predicted incident AF, whereas current use of angiotensin-converting enzyme inhibitors/angiotensin receptor blockers was protective (HR=0.61, 95% CI 0.38-0.99, p=0.048). Based on the simplified risk score which included these 4 variables, annualized AF incidence rates were 0.8%, 1.8%, and 3.6% in the low (score=0), intermediate (score=1 or 2), and high-risk (score >2) groups, respectively (log rank P<0.0001; Figure). Compared to the low risk group, the intermediate and high risk groups had a 2.5-fold and 5-fold increase in the risk of incident AF, respectively (HR=2.5, 95% CI 1.5-4.0, p=0.0003 and HR=4.9, 95% CI 2.9-9.4, p<0.0001, respectively). Model discrimination was good (c-statistic=0.67; 95% CI 0.61-0.72). Conclusions: A simplified risk score derived from clinical and laboratory characteristics predicts incident AF in patients with HFpEF and, upon further validation, may be used clinically for risk stratification or for AF screening in high risk groups. Figure

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P321A single factor related to left atrial pressure overload is useful for prognosis in elderly patients with heart failure with preserved ejection fraction: PURSUIT HFpEF study

European Heart Journal ◽

10.1093/eurheartj/ehz747.0156 ◽

2019 ◽

Vol 40 (Supplement_1) ◽

Author(s):

S Hoshida ◽

T Watanabe ◽

Y Shinoda ◽

T Minamisaka ◽

H Fukuoka ◽

...

Keyword(s):

Heart Failure ◽

Ejection Fraction ◽

Elderly Patients ◽

Left Atrial ◽

Pressure Overload ◽

Volume Index ◽

Preserved Ejection Fraction ◽

Single Factor ◽

Cardiac Events ◽

All Cause Mortality

Abstract Background E/e' and the ratio of diastolic elastance (Ed)/arterial elastance (Ea) = (E/e')/(0.9 × systolic blood pressure), indices of left atrial (LA) pressure overload, are elevated in elderly women with heart failure with preserved ejection fraction (HFpEF). The severity of diastolic dysfunction is assessed by a combination of several indices of LA volume and pressure overload. However, which overload is more important as a single factor for the prognosis of these patients remains undefined. Methods We enrolled patients with HFpEF showing sinus rhythm (n=145; left ventricular ejection fraction >50%; men/women, 56/89; mean age, 80.5 years). Blood examination and transthoracic echocardiography were performed before discharge. All-cause mortality and admission for cardiac events were evaluated after more than 1 year (mean, 370 days). Results The all-cause mortality rate was 11% (16/145). There were significant differences in age (p=0.005), serum N-terminal pro-brain natriuretic peptide (NT-proBNP) level (p<0.001), LA volume index (p=0.018), E/e' (p=0.022), and Ed/Ea (p=0.016) between patients with and without all-cause mortality. When cutoff points for mortality by receiver operating characteristic curve analysis were examined, the area under the curve in LA volume index (0.564) was slightly smaller than that in age (0.734), NT-proBNP level (0.732), E/e' (0.695), and Ed/Ea (0.709). Kaplan-Meier survival analysis clearly showed that age >85 years (p<0.001), NT-proBNP level >888 pg/mL (p=0.003), E/e' >14.4 (p=0.020), and Ed/Ea >0.153 (p<0.001) were determinant factors for mortality. Cox hazard ratios were also significant in these indices (p=0.002, p=0.012, p=0.028, and p=0.001, respectively). In the case of all-cause mortality or admission for cardiac events, the results were nearly similar as those in the case of all-cause mortality. Ed/Ea exhibited a larger Cox hazard ratio for prognosis than E/e' in the multivariate analysis. Conclusions LA pressure overload compared to volume overload was a useful marker for prognosis in elderly patients with HFpEF. As a single index for LA pressure overload in noninvasive echocardiographic findings, Ed/Ea may be more suitable than E/e'.

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Impact of catheter ablation for atrial flutter on mortality and hospital readmission rates in patients with heart failure and reduced ejection fraction

European Heart Journal ◽

10.1093/ehjci/ehaa946.0441 ◽

2020 ◽

Vol 41 (Supplement_2) ◽

Author(s):

S Arora ◽

H P Patel ◽

C Jani ◽

S Thakkar ◽

J Gonzalez ◽

...

Keyword(s):

Heart Failure ◽

Catheter Ablation ◽

Ejection Fraction ◽

Atrial Flutter ◽

Primary Outcome ◽

Cox Regression Analysis ◽

Reduced Ejection Fraction ◽

Significant Difference ◽

All Cause Mortality ◽

Secondary Outcomes

Abstract Background The effectiveness of catheter ablation as a management modality amongst patients with coexisting atrial flutter (AFL) and heart failure with reduced ejection fraction (HFrEF) is scarcely studied. Methods Appropriate ICD 10 codes were applied to the 2016 and 2017 National Readmission Database (NRD) to isolate patients having coexistent AFL and HFrEF including who had undergone an ablation. All-cause mortality at the end of 1 year was used as a primary outcome. Readmission due to AFL, heart failure (HF) and other causes were secondary outcomes. The hazard ratios were generated using Cox regression analysis while the time to event analysis was demonstrated with the Kaplan Meier curves. Results Out of a total of 9966 patients with AFL and HFrEF, 1980 (24.79%) patients underwent catheter ablation. The primary outcome, all-cause mortality (2.8% vs. 4.6%, HR: 0.610, 95% CI: 0.460–0.808, p=0.001) at the end of 1 year was significantly lower. Significant difference was also noted amongst two groups when it came to secondary outcomes such as readmissions due to AFL (1.6% vs. 6.3%, HR: 0.247, 95% CI: 0.173–0.354, p<0.001), HF (8.2% vs. 11.4%, HR: 0.693, 95% CI: 0.587–0.819, p<0.001) and other causes (29.4% vs. 37.1%, HR: 0.735, 95% CI: 0.673–0.804, p<0.001) Conclusion Ablative intervention amongst AFL patients with concomitant HFrEF showed a significant reduction in all-cause mortality. It also leads to significant reductions in readmissions due to AFL, HF and other causes at the end of one year. Outcomes of AFL and HFrEF Funding Acknowledgement Type of funding source: None

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