scholarly journals Relationship between Atrial Tachyarrhythmias and Intrathoracic Impedance in Patients with a Pacemaker and Preserved Ejection Fraction

2019 ◽  
Vol 9 (1) ◽  
pp. 105
Author(s):  
Min-Tsun Liao ◽  
Chun-Kai Chen ◽  
Ting-Tse Lin ◽  
Li-Ying Cheng ◽  
Hong-Wen Ting ◽  
...  

Atrial fibrillation (AF) is responsible for significant morbidity and mortality in patients with heart failure (HF). Modern pacemakers provide an index of intrathoracic fluid status (OptiVol fluid index—OVFI) by measuring daily intrathoracic impedance. This study aimed to determine whether OVFI is associated with increased atrial tachycardia/fibrillation (AT/AF) events in patients with a preserved ejection fraction (EF). We retrospectively reviewed data from patients with Medtronic Advisa pacemakers between 2012 and 2014 in our hospital. The association and temporal relationship between OVFI and AT/AF events were determined. A total of 150 patients with 211 follow-up visits (mean 1.4 visits per patient) were evaluated. The device-detected AT/AF prevalence was 47%. Device-measured OVFI ≥ 20 Ω-days was significantly associated with the onset of AT/AF ≥ 4 h. OVFI threshold crossing preceded AT/AF events in 55.1% of cases, followed by AT/AF events in only 18.7%. Fluid overload represented by OVFI may trigger AT/AF episodes in patients with a preserved EF more often than that previously reported in patients with a reduced EF. Our findings support the view that worsening pulmonary congestion is associated with increased AT/AF frequency and suggests that fluid overload could trigger and perpetuate AT/AF events in patients with a preserved EF.

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<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


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Kumpei Ueda ◽  
Shungo Hikoso ◽  
Daisaku D Nakatani ◽  
Shunsuke Tamaki ◽  
Masamichi Yano ◽  
...  

Background: An elevated pulmonary artery wedge pressure (PAWP), a surrogate of left ventricular filling pressure, is associated with poor outcomes in patients with heart failure (HF). In addition, obesity paradox is well recognized in HF patients and body mass index (BMI) also provides a prognostic information. However, there is little information available on the prognostic value of the combination of the echocardiographic derived PAWP and BMI in patients with HF with preserved ejection fraction (HFpEF). Methods and Results: Patients data were extracted from The Prospective mUlticenteR obServational stUdy of patIenTs with Heart Failure with Preserved Ejection Fraction (PURSUIT HFpEF) study, which is a prospective multicenter observational registry for acute decompensated heart failure (ADHF) patients with HFpEF. We analyzed 548 patients after exclusion of patients undergoing hemodialysis, patients with in-hospital death, missing follow-up data, or missing data to calculate PAWP or BMI. Body weight measurement and echocardiography were performed just before discharge. PAWP was calculated using the Nagueh formula [PAWP = 1.24* (E/e’) + 1.9] with e’ = [(e’ septal + e’ lateral ) /2]. During a mean follow up period of 1.5±0.8 years, 86 patients had all-cause death (ACD). Multivariate Cox analysis showed that both PAWP (p=0.020) and BMI (p=0.0001) were significantly associated with ACD, independently of age and previous history of HF hospitalization, after the adjustment with gender, left ventricular ejection fraction, NT-proBNP and estimated glomerular filtration rate. Kaplan-Meier curve analysis revealed that there was a significant difference in the risk of ACD when patients were stratified into 3 groups based on the median values of PAWP (17.3) and BMI (21.4). Conclusions: The combination of the echocardiographic derived PAWP and BMI might be useful for stratifying ADHF patients with HFpEF at risk for the total mortality.


Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Gianluigi Savarese ◽  
Camilla Hage ◽  
Ulf Dahlström ◽  
Pasquale Perrone-Filardi ◽  
Lars H Lund

Introduction: Changes in N-terminal pro brain natriuretic peptide (NT-proBNP) have been demonstrated to correlate with outcomes in patients with heart failure (HF) and reduced ejection fraction (EF). However the prognostic value of a change in NT-proBNP in patients with heart failure and preserved ejection fraction (HFPEF) is unknown. Hypothesis: To assess the impact of changes in NT-proBNP on all-cause mortality, HF hospitalization and their composite in an unselected population of patients with HFPEF. Methods: 643 outpatients (age 72+12 years; 41% females) with HFPEF (ejection fraction ≥40%) enrolled in the Swedish Heart Failure Registry between 2005 and 2012 and reporting NT-proBNP levels assessment at initial registration and at follow-up were prospectively studied. Patients were divided into 2 groups according the median value of NT-proBNP absolute change that was 0 pg/ml. Median follow-up from first measurement was 2.25 years (IQR: 1.43 to 3.81). Adjusted Cox’s regression models were performed using total mortality, HF hospitalization (with censoring at death) and their composite as outcomes. Results: After adjustments for 19 baseline variables including baseline NT-proBNP, as compared with an increase in NT-proBNP levels at 6 months (NT-proBNP change>0 pg/ml), a reduction in NT-proBNP levels (NT-proBNP change<0 pg/ml) was associated with a 45.2% reduction in risk of all-cause death (HR: 0.548; 95% CI: 0.378 to 0.796; p:0.002), a 50.1% reduction in risk of HF hospitalization (HR: 0.49; 95% CI: 0.362 to 0.689; p<0.001) and a 42.6% reduction in risk of the composite outcome (HR: 0.574; 95% CI: 0.435 to 0.758; p<0.001)(Figure). Conclusions: Reductions in NT-proBNP levels over time are independently associated with an improved prognosis in HFPEF patients. Changes in NT-proBNP could represent a surrogate outcome in phase 2 HFPEF trials.


2017 ◽  
Vol 230 ◽  
pp. 476-481 ◽  
Author(s):  
Benedikt Koell ◽  
Caroline Zotter-Tufaro ◽  
Franz Duca ◽  
Andreas A. Kammerlander ◽  
Stefan Aschauer ◽  
...  

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M Okada ◽  
K Inoue ◽  
T Onishi ◽  
K Iwakura ◽  
T Yamada ◽  
...  

Abstract Introduction Frailty and aging are two common conditions both associated with increased vulnerability to stressful events with high risk of adverse outcomes. Purpose To evaluate the association between frailty and aging and their impacts on clinical outcome in patients with heart failure with preserved ejection fraction (HFpEF). Methods Analysis was performed from a prospective multicenter observational registry for HFpEF (PURSUIT-HFpEF Registry) conducted in the Osaka region of Japan. A total of 757 patients hospitalized for acute heart failure (diagnosed by using Framingham criteria) met the inclusion criteria: a left ventricular ejection fraction ≥50% and brain natriuretic peptide ≥100pg/ml. We included 483 patients (age, 80±9 years; men, 45%; atrial fibrillation, 35%) whose follow-up data after survival discharge were available. Patients' frailty and aging were evaluated using the clinical frailty scale (CFS) and age quartiles (Q1: &lt;76 years (n=122), Q2: 76–82 years (n=111), Q3: 82–87 years (n=127), Q4: &gt;87 years (n=123)), respectively. The primary clinical endpoint was defined as the composite of death, re-hospitalization for heart failure, and cerebrovascular accident. Results The median (interquartile range) CFS rating was 3 (2–5), and there was a little correlation between CFS rating and age (r2=0.16, p&lt;0.001). The prevalence of frailty, defined as a CFS rating &gt;4 (n=132), was positively correlated with age quartiles (Q1: 9.0%, Q2: 21.4%, Q3: 29.9%, Q4: 48.0%, p&lt;0.001). During the median follow-up period 396 days (interquartile range, 344–698) after discharge, the clinical endpoint was observed in 172 patients. The incidence was higher in patients with frailty than those without it (49.6% vs. 30.4%, log-rank p&lt;0.001). It was also correlated with age quartiles (Q1: 23.0%, Q2: 34.2%, Q3: 36.2%, Q4: 48.8%, log-rank p=0.001). Multivariate Cox regression analysis revealed that frailty (hazard ratio, 1.52; 95% confidence interval, 1.09–2.10; p=0.013) and age (hazard ratio per quartile increase, 1.24; 95% confidence interval, 1.07–1.43; p=0.004) were both associated with the clinical endpoint. Subgroup analysis in 352 patients without frailty also revealed the significant impact of age on the endpoint (1.26; 1.06–1.51; p=0.008). However, in 131 patients with frailty, there was no significant impact of age on the endpoint (1.16; 0.90–1.51; p=0.25). Conclusions Frailty was common and was associated with aging in HFpEF patients. Although they were both associated with unfavorable events, aging was no longer a significant predictor of adverse outcomes under the frailty conditions. Funding Acknowledgement Type of funding source: Private company. Main funding source(s): Roche Diagnostics K.K. and Fuji Film Toyama Chemical Co. Ltd.


2018 ◽  
Vol 24 (4) ◽  
pp. 219-226 ◽  
Author(s):  
Kristin H. Dwyer ◽  
Allison A. Merz ◽  
Eldrin F. Lewis ◽  
Brian L. Claggett ◽  
Daniela R. Crousillat ◽  
...  

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
A Sunaga ◽  
S Hikoso ◽  
T Yamada ◽  
Y Yasumura ◽  
M Uematsu ◽  
...  

Abstract Background Malnutrition is associated with adverse prognosis in heart failure patients. However, in patients with heart failure with preserved ejection fraction (HFpEF), the effects of change in nutritional status during hospitalization on prognosis is unknown. Geriatric nutritional risk index (GNRI) is a widely used objective index for evaluating nutritional status. Low GNRI (<92) has moderate or severe nutritional risk and high GNRI (≥92) has no or low nutritional risk. Purpose The purpose of this study was to clarify the effect of change in GNRI during hospitalization on one-year mortality and the association between the value of GNRI and one-year mortality in patients with HFpEF. Methods We prospectively registered patients with HFpEF in PURSUIT-HFpEF registry when they were hospitalized for heart failure in 29 hospitals. Preserved ejection fraction was defined as more than 50% of left ventricular ejection fraction. Of the 486 patients who registered PURSUIT-HFpEF, 228 cases with one-year follow-up data were examined. GNRI was calculated as follows: 14.89 × serum albumin (g/dl) + 41.7 × body mass index/22. Results Mean age was 81±10 years and 100 patients (44%) were male. During a median [interquartile range] follow-up period of 374 [342, 400] days, 28 patients (12%) died. Mortality was significantly higher in patients with low GNRI at admission (n=65) than those with high GNRI at admission (n=163) (26% vs. 9%, log-rank P=0.011) and higher in patients with low GNRI at discharge (n=109) than those with high GNRI at discharge (n=119) (22% vs. 6%, log-rank P=0.002). Multivariate analysis with Cox proportional hazard model with patient characteristics at admission revealed that low GNRI at admission was independently associated with mortality (hazard ratio: 0.96, 95% CI: 0.93–0.99, P=0.035) and that with patient characteristics at discharge revealed that low GNRI at discharge was independently associated with mortality (hazard ratio: 0.94, 95% CI: 0.91–0.97, P<0.001). We also compared mortality by dividing patients into 4 group according to whether GNRI was high or low at the time of admission and discharge. Patients with low GNRI at admission and at discharge (n=59) exhibited the highest mortality, on the other hand, patients with high GNRI at admission and low GNRI at discharge (n=50) exhibited higher mortality than those with high GNRI both at admission and at discharge (n=113) (Low and low: 28% vs. High and low: 14% vs. High and high: 6% vs. Low and high: 0%, log-rank P=0.010). All cause mortality Conclusion GNRI at admission or at discharge was independently associated with one-year mortality in patients with HFpEF. Moreover, worsening GNRI during hospitalization is associated with the worse prognosis. It is important to prevent lowering GNRI during treatment of acute decompensated HFpEF. Acknowledgement/Funding Roche Diagnostics, FUJIFILM Toyama Chemical


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
S Suzuki ◽  
H Motoki ◽  
Y Kanzaki ◽  
T Maruyama ◽  
N Hashizume ◽  
...  

Abstract Introduction Long-acting loop diuretics have a possibility of better prognosis compared to short-acting loop diuretics in patients with heart failure with preserved ejection fraction (HFpEF). Purpose To investigate the effect of long- and short-acting loop diuretics in patients with HFpEF. Methods From the Clue of Risk Stratification in Patients With Heart Failure Registry (CURE-HF Registry), we enrolled 301 consecutive patients with HFpEF (median age, 84 years; 55% female). Long-acting loop diuretics (azosemide) were administrated in 127 patients, and short-acting loop diuretics (furosemide) in 174 patients. We constructed Cox models for MACE (defined as a composite of all-cause death, non-fatal myocardial infarction, non-fatal stroke, and heart failure [HF] hospitalization). Results During a median follow-up of 317 [174–734] days, the primary endpoint occurred in 129 patients (42.8%). On multivariate inverse probability of treatment weighted (IPTW) Cox modeling, patients treated with long-acting loop diuretics had a significantly lower incidence of adverse events than those treated with short-acting loop diuretics (hazard ratio [HR], 0.39; 95% confidence interval [CI] 0.23–0.67; P=0.001). Furthermore, on multivariate IPTW Cox modeling for the secondary endpoints, all-cause mortality (HR, 0.50; 95% CI, 0.20–0.80; P=0.01) and unplanned hospitalization for decompensated HF (HR, 0.50; 95% CI, 0.28–0.89; P=0.018) were also reduced in patients treated with long-acting loop diuretics. Conclusions Long-acting loop diuretics reduced the risk of MACE compared to short-acting diuretics in patients with HFpEF.


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

Abstract Background Malnutrition is one of the most important comorbidities among heart failure (HF) patients, and serum cholinesterase (CHE) has been reported to be a prognostic factor in HF patients. On the other hand, atrial fibrillation (AF) is frequently observed in patients with HF with preserved ejection fraction (HFpEF). However, there is little information available on the prognostic value of nutritional status in HFpEF patients, with and without AF. We sought to clarify the prognostic value of CHE in HFpEF with and without AF and compare it with that of other nutrition indices such as gastric nutritional risk index (GNRI), controlling nutritional status (CONUT), and the prognostic nutritional index (PNI). Methods and results Patients data were extracted from The Prospective mUlticenteR obServational stUdy of patIenTs with Heart Failure with Preserved Ejection Fraction (PURSUIT HFpEF) study, which is a prospective multicenter observational registry for acute decompensated heart failure patients with left ventricular ejection fraction ≥50% in Osaka. We analyzed 380 patients (median age: 80 [75–87] years, male: 46%) after exclusion of patients with in-hospital death, missing follow-up data, or missing data to calculate nutritional indices. On admission, 155 patients had AF. Laboratory data were obtained at discharge. During a mean follow up period of 1.1±0.6 years, 131 patients had a composite endpoint (CE) of all-cause death and hospitalization for worsening heart failure or cerebrovascular disorder. In multivariate Cox analysis, in patients with AF, CHE was significantly associated with CE independently of age, gender and body mass index after the adjustment with serum albumin, total cholesterol levels and total lymphocyte count, while it was not significantly associated with CE in patients without AF. C-index of CHE (0.708) was higher than that of GNRI (0.555, p=0.0028), CONUT (0.651, p=0.208) and PNI (0.635, p=0.208) in AF patients, while there were no significant differences in those nutritional indices in patients without AF. Kaplan-Meier curve analysis revealed that AF patients with lower CHE (&lt;208 U/L = median value) had higher risk of CE than those with higher CHE (44% vs 18%, adjusted HR 3.26 95% CI [1.66–6.67], p=0.0005), while there was no significant difference in the occurrence rate of CE between patients with and without higher CHE in non-AF group (42% vs 31%, adjusted HR 1.28 95% CI [0.78–2.13], p=0.33). Conclusions Prognostic value of CHE would be stronger than other nutritional indices in HFpEF patients with AF, while it would be weak in HFpEF patients without AF. Funding Acknowledgement Type of funding source: Private company. Main funding source(s): Roche Diagnostics K.K.; Fuji Film Toyama Chemical Co. Ltd.


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