Abstract 15164: Impact of Conventional Right Ventricular Pacing in Patients With Heart Failure With Preserved Ejection Fraction: Insights From Pursuit-hfpef Registry

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

Introduction: Previous studies suggest that conventional right ventricular (RV) pacing may have a deleterious effect on left ventricular (LV) function. However, there are no reports examining the effects of permanent pacemakers (PM) in patients with heart failure with preserved ejection fraction (HFpEF) admitted with acute decompensated heart failure (ADHF). 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 ADHF patients with LVEF ≥50% in Osaka. Echocardiographic measurements were performed just before and 1 year after discharge. We analyzed 623 patients (median age: 81[30-101] years) after exclusion of patients on dialysis. At the admission, 55 of 623 patients had a previously implanted pacemaker (PM(+)). There were no significant differences in baseline clinical characteristics before discharge such as age, gender, renal function, echocardiographic parameters between PM(+) and PM(-) groups. One year after discharge, left ventricular ejection fraction (LVEF) in PM(+) group was significantly lower (58.3±8.6 vs 62.3±8.4%, p=0.005) than those in PM(-) group. During a mean follow-up period of 1.25±0.84years, 171patients had heart failure hospitalization (HFH). At the multivariate Cox analysis, pacemaker was significantly associated with HFH, independently of age, serum NT-proBNP level, and LVEF after the adjustment with NYHA functional class, sex, and hemoglobin. Kaplan-Meier curve analysis revealed that patients in PM(+) group had a significantly higher risk of HFH than those in PM(-) group. Conclusion: The development of cardiac systolic and diastolic dysfunction occurred in patients with HFpEF with a RV pacemaker implantation, which would be associated with poor outcome.

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Natasha Cuk ◽  
Jae H Cho ◽  
Donghee Han ◽  
Joseph E Ebinger ◽  
Eugenio Cingolani

Introduction: Sudden death due to ventricular arrhythmias (VA) is one of the main causes of mortality in patients with heart failure and preserved ejection fraction (HFpEF). Ventricular fibrosis in HFpEF has been suspected as a substrate of VA, but the degree of fibrosis has not been well characterized. Hypothesis: HFpEF patients with increased degree of fibrosis will manifest more VA. Methods: Cedars-Sinai medical records were probed using Deep 6 artificial intelligence data extraction software to identify patients with HFpEF who underwent cardiac magnetic resonance imaging (MRI). MRI of identified patients were reviewed to measure extra-cellular volume (ECV) and degree of fibrosis. Ambulatory ECG monitoring (Ziopatch) of those patients were also reviewed to study the prevalence of arrhythmias. Results: A total of 12 HFpEF patients who underwent cardiac MRI were identified. Patients were elderly (mean age 70.3 ± 7.1), predominantly female (83%), and overweight (mean BMI 32 ± 9). Comorbidities included hypertension (83%), dyslipidemia (75%), and coronary artery disease (67%). Mean left ventricular ejection fraction by echocardiogram was 63 ± 8.7%. QTc as measured on ECG was not significantly prolonged (432 ± 15 ms). ECV was normal in those patients for whom it was available (24.2 ± 3.1, n = 9) with 3/12 patients (25%) demonstrating ventricular fibrosis by MRI (average burden of 9.6 ± 5.9%). Ziopatch was obtained in 8/12 patients (including all 3 patients with fibrosis) and non-sustained ventricular tachycardia (NSVT) was identified in 5/8 (62.5%). One patient with NSVT and without fibrosis on MRI also had a sustained VA recorded. In those patients who had Ziopatch monitoring, there was no association between presence of fibrosis and NSVT (X2 = 0.035, p = 0.85). Conclusions: Ventricular fibrosis was present in 25% of HFpEF patients in this study and NSVT was observed in 62.5% of those patients with HFpEF who had Ziopatch monitoring. The presence of fibrosis by Cardiac MRI was not associated with NSVT in this study; however, the size of the cohort precludes broadly generalizable conclusions about this association. Further investigation is required to better understand the relationship between ventricular fibrosis by MRI and VA in patients with HFpEF.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Tsutomu Kawai ◽  
Takahisa Yamada ◽  
Tetsuya Watanabe ◽  
Shunsuke Tamaki ◽  
Shungo Hikoso ◽  
...  

Backgrounds: Although B-type natriuretic peptide (BNP) and N-terminal pro B-type natriuretic peptide (NT-proBNP ) are interrelated parameters in assessment heart failure severity and prognosis, the ratio of NT-proBNP to BNP (NT-proBNP/BNP) are affected by various clinical factors, such as renal function. However, little is known about the influence of inflammation on NT-proBNP/BNP in patients with heart failure and preserved ejection fraction (HFpEF). Methods and Results: Patients data were extracted from PURSUIT-HFpEF registry, which is a multicenter prospective observational study including patients hospitalized for acute heart failure with left ventricular ejection fraction of >50%. Of 871 patients, data of BNP and NT-proBNP was available in 654 patients. The median baseline concentration of BNP was 474 pg/ml (299-720), NT-proBNP was 3310 pg/ml (1740-6840), and NT-proBNP/BNP was 7.6 (5.0-11.8). In multivariable linear regression analyses, older age [odds ratio (OR); 1.05, 95% confidence interval (CI); 1.02-1.09, p=0.001], higher creatinine [OR; 2.63, 95% CI; 1.66-4.16, p<0.001], and higher C-reactive protein (CRP) [OR; 1.17, 95% CI; 1.06-1.28, p<0.001] were significantly associated with a higher NT-proBNP/BNP (>median value of 7.6). However, other factors expected to affect NT-proBNP/BNP, such as atrial fibrillation and body mass index, were not associated with a higher NT-proBNP/BNP in this study. Patients in the highest CRP quartile had significantly higher NT-proBNP/BNP than those with other quartiles. Conclusion: In HFpEF patients, concomitant inflammation was associated with high NT-proBNP/BNP, which indicated that we need a careful interpretation on these two natriuretic peptides of patients with HFpEF and inflammatory status, such as infection.


2020 ◽  
Vol 9 (4) ◽  
pp. 1110 ◽  
Author(s):  
Antoni Bayes-Genis ◽  
Felipe Bisbal ◽  
Julio Núñez ◽  
Enrique Santas ◽  
Josep Lupón ◽  
...  

To better understand heart failure with preserved ejection fraction (HFpEF), we need to better characterize the transition from asymptomatic pre-HFpEF to symptomatic HFpEF. The current emphasis on left ventricular diastolic dysfunction must be redirected to microvascular inflammation and endothelial dysfunction that leads to cardiomyocyte remodeling and enhanced interstitial collagen deposition. A pre-HFpEF patient lacks signs or symptoms of heart failure (HF), has preserved left ventricular ejection fraction (LVEF) with incipient structural changes similar to HFpEF, and possesses elevated biomarkers of cardiac dysfunction. The transition from pre-HFpEF to symptomatic HFpEF also involves left atrial failure, pulmonary hypertension and right ventricular dysfunction, and renal failure. This review focuses on the non-left ventricular mechanisms in this transition, involving the atria, right heart cavities, kidneys, and ultimately the currently accepted driver—systemic inflammation. Impaired atrial function may decrease ventricular hemodynamics and significantly increase left atrial and pulmonary pressure, leading to HF symptoms, irrespective of left ventricle (LV) systolic function. Pulmonary hypertension and low right-ventricular function are associated with the incidence of HF. Interstitial fibrosis in the heart, large arteries, and kidneys is key to the pathophysiology of the cardiorenal syndrome continuum. By understanding each of these processes, we may be able to halt disease progression and eventually extend the time a patient remains in the asymptomatic pre-HFpEF stage.


Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Kyndaron Reinier ◽  
Audrey Uy-Evanado ◽  
Carmen Teodorescu ◽  
Eloi Marijon ◽  
Kumar Narayanan ◽  
...  

Introduction: Severely reduced left ventricular ejection fraction (EF) is an established risk factor for sudden cardiac death (SCD), but has limited sensitivity and specificity. We evaluated the contribution of heart failure (HF) with preserved ejection fraction toward risk of SCD in the general population. Hypothesis: We hypothesized that HF would predict risk of SCD, even among patients with preserved EF. Methods: Subjects from an ongoing community-based study of SCD in the northwest US (pop. approx. one million) were included if age ≥18 (2002 - 2012) with clinical history and assessment of EF. Clinical history of heart failure (HF) was determined by physician report. Ejection fraction (EF) was determined from echocardiogram, angiogram, or multigated acquisition scan, and categorized as EF <20%, 20-34%, 35-44%, 45-54%, and ≥55%. Laboratory values of brain natriuretic peptide (BNP) were obtained from routine clinical laboratory testing for a subset of patients. Results: Cases (n=628, mean age 69.9, 65% male) were more likely than controls (n = 580, mean age 66.8, 66% male) to have a history of clinically-recognized HF (58% vs. 24%, p<0.0001) and to have an EF ≤ 35% (27% vs. 12%, p<0.0001). At each EF level above 20%, HF was approximately twice as prevalent in cases compared to controls (Figure, p≤0.002). Median BNP levels were significantly higher for patients with HF vs. those without, across EF categories. Adjusting for age and sex, each category of decreasing EF was associated with an increased risk of SCD (OR 1.4, 95% CI 1.3 - 1.6, p<0.0001), but the association was diminished by adjustment for HF, and for BNP. Odds of SCD were 4-fold higher (p<0.0001) in the presence HF, adjusting for age and sex, across all categories of EF. Conclusions: In this population, the significant role of HF with preserved EF in SCD was confirmed by BNP level trends. Improvements in SCD prevention will require focused investigation of high risk SCD markers in patients with heart failure and preserved EF.


EP Europace ◽  
2021 ◽  
Vol 23 (Supplement_3) ◽  
Author(s):  
BV Silva ◽  
J Brito ◽  
T Rodrigues ◽  
P Silverio Antonio ◽  
S Couto Pereira ◽  
...  

Abstract Funding Acknowledgements Type of funding sources: None. Introduction   Adverse hemodynamic effects of right ventricular pacing are known, and the optimal right ventricular lead position is still being a matter of debate. According to the guidelines, upgrade to cardiac resynchronization therapy (CRT) is recommended in patients with indication for pacemaker and left ventricular ejection fraction less than 50% or who need more than 40% of ventricular pacing. Purpose   To compare clinical outcomes and ejection fraction in patients with previous pacemaker (apical versus septal right ventricular pacing) who are upgrated to CRT.  Methods   Single-center retrospective study of 94 consecutive patients who had previous pacemaker and upgraded to CRT over a 4-year period. Of these patients, 64 had previous apical lead pacemaker and 30 had previous septal lead pacemaker. Data on comorbidities, New York Heart Association (NYHA), left ventricular ejection fraction and hospitalizations due to heart failure were collected. The results were obtained using Chi-square, Mann-Whitney and t-test. Results Patients with septal pacemaker had significantly more diabetes (p = 0.04) and chronic obstructive pulmonary disease (p = 0.01), tended to be more symptomatic (p = 0.198) and had more days of hospitalization before and after pacemaker implantation (12 ± 3 versus 7 ± 2 days and 8 ± 4 versus 3 ± 1 days, respectively), mostly due heart failure decompensation.  Although there were no significant differences in the initial ejection fraction in patients with apical or septal pacemaker implantation (31.2 ± 1.2% and 29.1 ± 1.5%, respectively, p = 0.323), the time to upgrade to CRT was significantly shorter in patients with septal pacemaker implantation (1999 ± 227 days versus 3005 ± 279 days, p = 0.005).  After upgrading to CRT, patients with apical lead had a significant increase in ejection fraction (8.2%, p = 0.011), while patients with septal lead had a non-significant improvement of ejection fraction (4.5%, p = 0.448). In both, apical and septal lead patients, there was a significant improvement in NYHA class after upgrade to CRT (p = 0.03 and p = 0.02, respectively). Conclusion   Although patients with septal lead had more comorbidities and hospitalizations due to heart failure, they do not benefit from the upgrade to CRT, unlike what happens in patients with apical lead. These findings can be explained by the fact that the septal lead minimizes ventricular desynchrony induced by right ventricular pacing.


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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