scholarly journals Cardiac contractility modulation improves long‐term survival and hospitalizations in heart failure with reduced ejection fraction

2019 ◽  
Vol 21 (9) ◽  
pp. 1103-1113 ◽  
Author(s):  
Stefan D. Anker ◽  
Martin Borggrefe ◽  
Hans Neuser ◽  
Marc‐Alexander Ohlow ◽  
Susanne Röger ◽  
...  
2017 ◽  
Vol 22 (4) ◽  
pp. 307-315 ◽  
Author(s):  
Kavita B Khaira ◽  
Ellen Brinza ◽  
Gagan D Singh ◽  
Ezra A Amsterdam ◽  
Stephen W Waldo ◽  
...  

The impact of heart failure (HF) on long-term survival in patients with critical limb ischemia (CLI) has not been well described. Outcomes stratified by left ventricular ejection fraction (EF) are also unknown. A single center retrospective chart review was performed for patients who underwent treatment for CLI from 2006 to 2013. Baseline demographics, procedural data and outcomes were analyzed. HF diagnosis was based on appropriate signs and symptoms as well as results of non-invasive testing. Among 381 CLI patients, 120 (31%) had a history of HF and 261 (69%) had no history of heart failure (no-HF). Within the HF group, 74 (62%) had HF with preserved ejection fraction (HFpEF) and 46 (38%) had HF with reduced ejection fraction (HFrEF). The average EF for those with no-HF, HFpEF and HFrEF were 59±13% vs 56±9% vs 30±9%, respectively. The likelihood of having concomitant coronary artery disease (CAD) was lowest in the no-HF group (43%), higher in the HFpEF group (70%) and highest in the HFrEF group (83%) ( p=0.001). Five-year survival was on average twofold higher in the no-HF group (43%) compared to both the HFpEF (19%, p=0.001) and HFrEF groups (24%, p=0.001). Long-term survival rates did not differ between the two HF groups ( p=0.50). There was no difference in 5-year freedom from major amputation or freedom from major adverse limb events between the no-HF, HFpEF and HFrEF groups, respectively. Overall, the combination of CLI and HF is associated with poor 5-year survival, independent of the degree of left ventricular systolic dysfunction.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
P Sulzgruber ◽  
L Koller ◽  
S Blum ◽  
A Hammer ◽  
N Kazem ◽  
...  

Abstract Background Heart failure with reduce ejection fraction (HFrEF) constitutes a global health issue representing a prevalent clinical syndrome. While pro-inflammatory cytokines proved to have a pivotal role in the development and progression of HFrEF, less attention has been paid to the cellular immunity. Regulatory T lymphocytes (Tregs) seem to have an important role in the induction and maintenance of immune homeostasis especially in patients after acute coronary syndrome and coronary vessel disease. Therefore, we aimed to investigate the impact of Tregs on the outcome of patients presenting with ischemic HFrEF. Methods We prospectively enrolled 112 patients with HFrEF defined by New York Heart Association (NYHA) functional class >II and left ventricular ejection fraction (LVEF) <40%. Patients were stratified in ischemic (iHFrEF, n=57) and dilated etiology (dHFrEF, n=55). Cells from fresh heparinized blood were stained and analyzed using BD FACS Canto II flow cytometry. Cox regression hazard analysis was used to assess the influence of Tregs on survival. The multivariate model was adjusted forage and gender. Results Comparing patients with iHFrEF to dHFrEF we found a significantly lower fraction of Tregs within lymphocytes in the ischemic subgroup (0.42% vs. 0.56%; p=0.009). After a mean follow-up time of 4.5 years 32 (28.6%) patients died due to cardiovascular causes. We found that Tregs were significantly associated with cardiovascular survival in the entire study cohort with an adjusted HR per one standard deviation (1-SD) of 0.60 (95% CI 0.39–0.92; p=0.017). Interestingly while there was no association with cardiovascular survival independently in the dHFrEFsubgroup (adj. HR per 1-SD of 0.62 (95% CI 0.17–2.31); p=0.486), we found a significant inverse association of Tregs and cardiovascular survival in patients with iHFrEFwith an adj. HR per 1-SD of 0.59 (95% CI 0.36–0.96; p=0.034). Figure 1. Survival Curves of Cardiovascular Mortality. Kaplan-Meier plots showing survival free of cardiovascular mortality in the total study collective (A) and patients stratified in ischemic CMP (B) as well dilative CMP (C) according to tertiles of frequencies of regulatory T cells. Tertile 1 = high; Tertile 2 = mid; Tertile 3 = low. Conclusion Our results indicate a potential influence of Tregs in the pathogenesis and progression of iHFrEF, fostering the implication of cellular immunity in iHFrEF pathophysiology and proving Tregs as a predictor for long-term survival among iHFrEF -patients.


2021 ◽  
Vol 23 (Supplement_G) ◽  
Author(s):  
Daniele Masarone ◽  
Stefano De Vivo ◽  
Vittoria Errigo ◽  
Antonio D’ Onofrio ◽  
Giuliano D’Alterio ◽  
...  

Abstract Aims Cardiac contractility modulation therapy (CCMT) has been shown to reduce hospitalizations and to improve quality of life in heart failure patients with reduced ejection fraction (HFrEF) who remain symptomatic despite disease-modifying therapies. Strain imaging derived myocardial work (MW) is an emerging tool for evaluating left ventricular mechanics by incorporating systolic deformation and afterload burden in the analysis. To evaluate prospectively the impact of CCMT in HFrEF patients on MW derived parameters in relation to standard echocardiographic indices. Methods and results We recruited 12 HFrEF patients with indications to CCMT according to current clinical practice. A comprehensive echo-Doppler evaluation, including speckle tracking derived assessment of global longitudinal strain (GLS), was performed before and after three months from the CCM device implantation. Parameters of MW such as global work index (GWI), global constructive work (GCW) global wasted work (GWW), and global work efficiency (GWE) were calculated according to standardized procedures. Median values (interquartile range) were compared for all those parameters from baseline and 3-month follow-up with Wilcoxon Rank Sum test for continuous variables. At three months from CCM implant an improvement of LVEF [from 32% (27–34) to 36% (29–39), P &lt; 0.05], GLS [from 7.4% (6.2–11.2) to 9.9% (7.5–9.4), P &lt; 0.05], GWI [from 461 mmHg (372–613) to 589 mmHg (413–696), P &lt; 0.05], GCW [from 800 mmHg (620–930) to 970 mmHg (644–1009), P = 0.236], and GWE [from 73% (65–78) to 85% (78–87), P &lt; 0.05] was observed, with a consistent reduction of GWW [from 161 mmHg (148–227) to 125 mmHg (101–188), P &lt; 0.05]. We also found a positive correlation between the magnitude of LVEF improvement and the baseline values of GCW (r = 0.727, P = 0.011). Conclusions At 3 months, CCMT significantly improves standard and advanced left ventricular systolic function indices. This improvement is due to the increase of constructive work and a reduction of wasted work. In addition, the increase of left ventricular ejection fraction can be predicted by the global constructive work levels at baseline.


Circulation ◽  
2012 ◽  
Vol 125 (suppl_10) ◽  
Author(s):  
Lindsay G Smith ◽  
A. Selcuk Adabag ◽  
Alan K Berger ◽  
Russell V Luepker

Background: Long-term survival data on patients with heart failure (HF) in community-based populations are limited. Preserved ejection fraction (PEF) is present in 50-60% of HF patients. We examined whether trends in long-term survival differed between HF patients with preserved (ejection fraction >/= 45) and reduced ejection fraction (REF) in the context of modern treatment. Methods: The Minnesota Heart Survey, a community-based population study conducted in the Minneapolis-St. Paul metropolitan area, abstracted a random sample of hospital records for patients aged 35-84 with a discharge diagnosis of HF in 1995 and 2000. In the absence of a gold standard diagnosis of HF, hospitalization records that met at least four of six published classification algorithm definitions were considered HF related. Mortality was ascertained from medical records and by linkage to death certificates from the Department of Health. Kaplan-Meier was used for unadjusted survival and Cox proportional hazards regression was used to calculate adjusted hazard ratios (HR). Results: In 1995 1269 HF patients (PEF, n = 423; REF, n = 846) and in 2000 1103 HF patients (PEF, n = 413; REF, n = 690) were identified. The prevalence of hypertension, diabetes mellitus and hyperlipidemia were significantly higher in 2000; the utilization of ACE-Inhibitors, beta-blockers and revascularization were also significantly greater in 2000. In 1995, the unadjusted 9-year survival was 21% in REF and 28% in PEF; in 2000 these numbers were 28% in REF and 29% in PEF (Figure). After adjustment for sex and age the HR for 9-year mortality in 1995 was 0.77 (95% CI: 0.68 - 0.89) for HF patients with PEF compared to REF, p = 0.0003; in 2000 the adjusted HR for 9-year mortality in patients with PEF compared to REF was 0.95 (95%CI: 0.82 - 1.10), p = 0.48. Conclusion: Survival after a HF related hospitalization is low with less than 30% of patients surviving nine years. The increased utilization of ACE-Inhibitors and beta-blockers may partially explain the improved survival among HF patients with REF.


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