B P6 C50 Management of Heart Failure Patients with Reduced Ejection Fraction Flashcards
(160 cards)
In industrialized countries, _____ is the predominant cause in etiology in men and women and is responsible for 60% to 75% of cases of HF.
CAD
_____ is an important cause of HF in the African and African American population.
Hypertension
_____ is still a major cause of HF in South America.
Chagas disease
As developing nations undergo socioeconomic development, the epidemiology of HF is becoming similar to that of Western Europe and North America, with _____ emerging as the single most common cause of HF.
CAD
In _____% of the cases of HFrEF, the exact etiologic basis is not known. These patients are referred to as having dilated or idiopathic cardiomyopathy if the cause is unknown
20-30%
Most of the forms of familial dilated cardiomyopathy are inherited in an _____ fashion
Autosomal dominant
___ is one of the stronger and most consistent predictors of adverse outcome in HF
Age
Risk Factors for Cardiac Failure (Olmstead County): Odds ratio for CAD
3.05
Risk Factors for Cardiac Failure (Olmstead County): Odds ratio for Hypertension
1.44
Risk Factors for Cardiac Failure (Olmstead County): Odds ratio for Diabetes
2.65
Risk Factors for Cardiac Failure (Olmstead County): Odds ratio for Obesity
2.00
Risk Factors for Cardiac Failure (Olmstead County): Odds ratio for Ever smoker
1.37
Strong inverse correlations have been reported between survival and plasma levels of these biomarkers/inflammatory markers:
Norepinephrine
Renin
Arginine vasopressin (AVP)
Aldosterone
Atrial and brain natriuretic peptides (BNP and NT-proBNP)
Endothelin-1
Inflammatory markers:
Tumor necrosis factor (TNF)
Soluble TNF receptors
C reactive protein
Galactin-3
Pentraxin-3
Soluble ST2
The _____ Trial was designed to prospectively study the relationship between change in natriuretic peptide concentration, cardiac remodeling, and clinical events in HFrEF patients. Although this was stopped prematurely because biomarker-guided treatment was not more effective than usual care in improving outcomes, the Echocardiographic Substudy showed that lowering NT-proBNP to less than 1000 pg/mL by 12 months was associated with reverse LV remodeling and improved outcomes, regardless of the treatment strategy employed. These findings suggest the response to treatment as assessed by change in NT-proBNP is more important than the treatment strategy.
GUIDE-IT trial (Guiding Evidence Based Therapy Using Biomarker Intensified Treatment in Heart Failure)
Markers of oxidative stress, such as _____, have also been associated with worsening clinical status and impaired survival in patients with chronic HF.
Oxidized LDL
Serum uric acid
_____, sensitive markers of myocyte damage, may be elevated in patients with non- ischemic HF and predict adverse cardiac outcomes, as well as the development of incident HF.
Cardiac troponin T and I
In general, anemia is associated with ______. However, it is unclear whether anemia is a cause of decreased survival, or simply a marker of more advanced disease.
(1) More HF symptoms
(2) Worse NYHA functional status
(3) Greater risk of HF hospitalization
(4) Reduced survival
The underlying cause for anemia is likely multifactorial, including _____ given as possible explanations.
(1) Reduced sensitivity to erythropoietin receptors
(2) Presence of a hematopoiesis inhibitor
(3) Defective iron supply for erythropoiesis
Although a “transfusion threshold” for maintaining the hematocrit greater than ____% in patients with cardiovascular disease has been generally been accepted, this clinical practice has been based more on expert opinion rather than on direct evidence that documents the efficacy of this form of therapy.
> 30%
Treatment of anemic HF patients with mild to moderate anemia (hemoglobin level 9.0 to 12.0 g/dL) with the erythropoietin analog darbepoetin alpha was evaluated in the _____ trial. There was no significant difference in the primary outcome variable of death from any cause or hospitalization for worsening HF (hazard ratio [HR] in the darbepoetin alfa group, 1.01; 95% confidence interval [CI] 0.90−1.13; P = 0.87), nor the secondary outcome of cardiovascular death or time to first hospitalization for worsening HF (HR in the darbepoetin alfa group 10.01, 95% CI 0.89 to 1.14; P = 0.2). The lack of effect of darbepoetin alfa was consistent across all prespecified subgroups. Importantly, treatment with darbepoetin alfa led to an early (within 1 month) and sustained increase in the hemoglobin level throughout the study.
RED-HF (Reduction of Events With Darbepoetin Alfa in Heart Failure)
The definition of iron deficiency in HF differs from other conditions of chronic inflammation and is defined as:
(1) Ferritin less than 100 μg/L
or
(2) Ferritin of 100 to 299 μg/L + transferrin saturation < 20%
The one randomized clinical trial that used an oral iron polysaccharide (_____), did not show an improvement in peak VO2 by cardiopulmonary exercise testing at 16 weeks. Based on the results of the randomized trials with intravenous iron supplementation, the current ACC/AHA/HFSA guidelines recommend (class IIb, LOE B-R) that intravenous iron replacement might be reasonable in patients with NYHA class II and III HF and iron deficiency (ferritin <100 ng/mL or 100 to 300 ng/
mL if transferrin saturation is <20%) to improve functional status and quality of life.
Oral Iron Repletion Effects 0 On Oxygen Uptake in Heart Failure [IRONOUT]; NCT02188784
In the _____, impaired renal function was a stronger predictor of mortality than impaired LV function and NYHA class in patients with advanced HF. Thus, renal insufficiency is a strong, independent predictor of adverse out- comes in HF patients. As will be discussed, below, treatment with sodium-glucose transporter-2 (SGLT2) inhibitors stabilizes renal function in patients with HFrEF.
Second Prospective Randomized Study of Ibopamine on Mortality and Efficacy (PRIME II)
___________ includes patients who are at high risk for developing HF, but without structural heart dis- ease or symptoms of HF (e.g., patients with diabetes or hypertension)
Stage A