Evaluation of dapagliflozin in the treatment of heart failure

2020 ◽  
Author(s):  
Sara Sotirakos

The European Society of Cardiology recently addressed the use of SGLT2 inhibitor use in the treatment of heart failure (HF). Dapagliflozin is a SGLT2 inhibitor recently approved by the US FDA for treatment of patients with HF with a reduced ejection fraction with a New York Heart Association classification of II–IV. Dapagliflozin significantly decreases the risk of worsening HF or death from cardiovascular cause compared with placebo and this risk does not differ based on the presence or absence of Type 2 diabetes. This paper aims to summarize the chemistry, pharmacodynamics and pharmacokinetics of dapagliflozin; and evaluates the clinical efficacy of dapagliflozin in the treatment of HF.

2018 ◽  
Vol 64 (3) ◽  
pp. 597-608 ◽  
Author(s):  
Noemi Pavo ◽  
Georg Goliasch ◽  
Raphael Wurm ◽  
Johannes Novak ◽  
Guido Strunk ◽  
...  

Abstract BACKGROUND Blockade of the renin–angiotensin system (RAS) represents a main strategy in the therapy of heart failure with reduced ejection fraction (HFrEF), but the role of active renin concentration (ARC) for guiding therapy in the presence of an RAS blockade remains to be established. This study assessed angiotensin profiles of HFrEF patients with distinct RAS activations as reflected by ARC. METHODS Two cohorts of stable chronic HFrEF patients on optimal medical treatment (OMT) were enrolled. We assessed ARC and all known circulating angiotensin metabolites, including AngI and AngII, by mass spectrometry to investigate the effect of different therapy modalities. Low- and high-renin HFrEF patients were identified by ARC screening and subsequently characterized by their angiotensin profiles. RESULTS Although different modes of RAS blockade resulted in typical AngII/AngI ratios, concentrations of (AngI+AngII) strongly correlated with ARC [r = 0.95, P < 0.001] independent of therapy mode. Despite RAS blocker treatment with angiotensin-converting enzyme inhibitors (ACE-I) or angiotensin II type 1 receptor blockers (ARB), which anticipated ARC upregulation, about 30% of patients showed lower/normal range ARC values. ARC did not correlate with N-terminal pro-B-type natriuretic peptide (NT-proBNP) concentrations and New York Heart Association (NYHA) stages. Angiotensin concentrations were profoundly diminished for the low-ARC group compared with the high-ARC group: AngI [6.4 ng/L (IQR: 2.1–12.5) vs 537.9 ng/L (IQR: 423.1–728.4), P < 0.001 for ACE-I; and 4.5 ng/L (IQR: 1.4–11.2) vs 203.0 ng/L (IQR: 130.2–247.9), P = 0.003 for ARB] and AngII [<1.4 ng/L (IQR: <1.4–1.5) vs 6.1 ng/L (IQR: 2.0–11.1), P = 0.002 for ACE-I and 4.7 ng/L (IQR: <1.4–12.3) vs 206.4 ng/L (IQR: 142.2–234.4), P < 0.001 for ARB]. CONCLUSIONS In addition to NT-proBNP and NYHA stages, ARC enables classification of HFrEF patients receiving OMT into more distinguished neurohumoral HFrEF phenotypes, offering a rationale for adaptive therapeutic interventions.


2021 ◽  
pp. 109019812110532
Author(s):  
Elodie Charuel ◽  
Martial Bernard ◽  
Hélène Vaillant Roussel ◽  
Benoit Cambon ◽  
Thibault Ménini ◽  
...  

Background Participation in regular physical activity (RPA) is beneficial to the quality of life and life expectancy of patients with chronic heart failure (CHF). However, it is inadequate in many patients. Aims To determine the factors that influence the practice of RPA in patients with CHF managed in general practice. Method This was a qualitative study using semistructured, individual face-to-face interviews. Patients with CHF (New York Heart Association Stages 1–3) capable of participating in RPA were enrolled by their general practitioner. A longitudinal and transversal inductive thematic analysis was performed by two researchers. Results Five themes emerged from the 19 interviews that were conducted. Poor knowledge of the disease and the benefits of participating in RPA, as well as the lack of motivation or enjoyment, in particular due to the absence of previous participation, were considered significant obstacles. Fear associated with CHF or other comorbidities was also an obstacle. Attendance at a rehabilitation center, family and social circles, and having a pet all appeared to be beneficial. Family and friends were important for motivating the patient to participate in an activity but could also be an obstacle when they were overprotective. Conclusion This study helps highlight the difficulties for patients with CHF associated with participation in RPA. Despite the obstacles, there are enabling factors on which the general practitioner may rely to motivate their patients.


Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Robyn Gallagher ◽  
Judith Donoghue ◽  
Lynn Chenoweth ◽  
Jane Stein-Parbury

Medication knowledge and assistance in older chronic heart failure (CHF) patients. Medication adherence is central to the optimal management of CHF. Little is known about older patients’ knowledge of their medications or the factors that contribute to this knowledge. Aim: To describe and identify the predictors of medication knowledge in older CHF patients. Method: Subjects ( n = 62) aged over 55 years with moderate heart failure (New York Heart Association Class II and III) who identified as self-managing were recruited from hospital or rehabilitation. Interviews occurred at home four weeks post-discharge using a medication checklist and the Self-Efficacy in Chronic Illness Scale (Lorig et al, 2001). Multiple regression analysis determined the predictors of medication knowledge. Results: Patients were aged mean 78.4 years (sd 8.54 years), mostly male (57%) and had an average 8 (median, range 3–22) medications to take daily, of which 6 (median, range 3–14) were for CHF. Most managed their own medications (54%) but more than a quarter (28%) were assisted by reminding, dispensing and supervision. Compliance with medications was high (84%), although only half (53%) knew the name, main purpose and side effect of their medications. Patients with better self-efficacy (β = 2.88) and no help with medication (β = -21.05) had better medication knowledge (model F = 13.6, p = .000, R = .61, r 2 = .37). Conclusion: Older CHF patients have poor knowledge of their medications, which may be improved by promoting overall self-efficacy for disease management. Less knowledgeable patients received appropriate assistance with medications, but the consequence may be less knowledge and thus warrants further investigation.


Author(s):  
Farbod Raiszadeh ◽  
Neeraja Yedlapati ◽  
Ileana L Piña ◽  
Daniel M Spevack

Background: Since stroke volume (SV) is a function of ejection fraction (EF) and end-diastolic volume (EDV) (SV = EF x EDV), we hypothesized that increased EDV may be advantageous in systolic heart failure (HF), allowing the left ventricle to supply increased cardiac output. Methods: Echocardiograms from 968 consecutive patients seen in our hospital’s HF clinic were reviewed. Left ventricular volumes were measured both at end systole and end diastole using the bi-plane Simpson’s method and were indexed to body surface area. EF was calculated using (EDV-ESV)/EDV. Dates of subsequent HF events (death or admission for HF exacerbation) were obtained from our database. Results: Systolic HF (EF < 50%) was found in 649 of the study subjects. Increased SV index was associated with increased EDV index. The strength of this association varied with EF, Figure. In a bivariate Cox regression model, lower SV index and higher EDV index were each independent predictors of HF events. Increase in EDV by 50 cc was associated with a 20% increase in HF events, p<0.001. Decrease in SVI by 5 cc was associated with 5% increase in HF events, p<0.001. These associations were limited to those with systolic HF. The associations between both EDVI and SVI and HF events were not confounded by patient age, sex and New York Heart Association Class. Conclusion: Increased EDV index was independently associated with increased HF events, indicating that LV enlargement in HF is not favorable. These findings underscore the individual contributions of the components of EF (SV and EDV) in predicting HF outcomes.


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