The Dark Side of the Moon: Heart Failure with Preserved ......The Dark Side of the Moon: Heart...
Transcript of The Dark Side of the Moon: Heart Failure with Preserved ......The Dark Side of the Moon: Heart...
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The Dark Side of the Moon: Heart Failure with Preserved Ejection Fraction
Felix K. Yam, Pharm.D., M.A.S., BCPS-AQ CardiologyAssociate Clinical Professor
UC San Diego Skaggs School of Pharmacy and Pharmaceutical Sciences
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Disclosure
I have no relevant conflicts of interest to disclose.
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Objectives
1. Know the prevalence and risk factors for heart failure with preserved ejection fraction.
2. Differentiate the pathophysiology and pharmacologic treatment options between heart failure patients who have reduced ejection fraction and those who have preserved ejection fraction.
3. Apply pharmacotherapy principles and knowledge of published evidence to optimize medication use and improve outcomes in patients who have heart failure with preserved ejection fraction.
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Heart Failure: Burden of Disease
Life-time risk of developing HF for Americans age ≥ 401
Djousse L et al. JAMA. 2009;302:394-400.Roger VL et al. JAMA. 2004;292:344-50.
One-half of patients diagnosed with HF dead within 5 years2
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Heart Failure: Comparative Mortality
Disease State
1-year mortality (men)
1-year mortality (women)
5-year mortality (men)
5-year mortality (women)
Heart Failure*
1950-1969
1970-1979
1980-1989
1990-1999
30%
41%
33%
28%
28%
28%
27%
24%
70%
75%
65%
59%
57%
59%
51%
45%
All Cancer 38% 37.3%
Breast Cancer
Prostate Cancer
Colon Cancer
14.1%
2.4%
38.6%
Levy et al. N Eng J Med 2002;347:1397-1402.Brenner H. Lancet 2002;360:1131-35.
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Heart Failure: Morbidity and Cost
Hospitalization, 53%
Nursing Home, 12%
Physician/Provider, 6%
Drugs/Other, 18%
Lost productivity/mort
ality, 11%
Estimated 2010 total heart failure costs: $39.2 billion
AHA Heart Disease and Stroke Statistics 2010 Update. Circulation 2010;121;e46-215.Cost to treat heart failure expected to more than double by 2030. http://newsroom.heart.org/news/costs-to-treat-heart-failure-expected-to-more-than-double-by-2030. Accessed March 21, 2016.
HF is the primary diagnosis in > 1 million hospitalizations annually
In 2030, projected U.S. Heart Failure Costs: $70 billion
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All-cause mortality after each subsequent hospitalization for heart failure
Time since admission
0.0
0.2
Cu
mu
lati
ve m
ort
alit
y 0.8
1.0 HF1st admission (n = 14,374)2nd admission (n = 3,358)3rd admission (n = 1,123)4th admission (n = 417)
1st hospitalization: 30-day mortality = 12%; 1-year mortality = 34%
0.6
0.4
0.0 0.5 1.0 1.5 2.0
Setoguchi S, et al. Am Heart J. 2007;154:260-266.Slides adapted from AHA Target:HF Presentation 2010.
P<0.0001
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Established benefits of guideline-recommended heart failure therapies
Fonarow GC, et al. Am Heart J 2011;161:1024-1030.Slides adapted from AHA Target:HF Presentation 2010
Guideline Recommended Therapy
Relative Risk Reduction in Mortality
Relative Risk Reduction in Hospitalization
ACEI/ARB 17% 31%
Beta-blocker 34% 41%
Aldosterone Antagonist 30% 35%
Hydralazine/Nitrate 43% 33%
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Trends in the Proportion of Cardiovascular Deaths in Clinical Trials
Rush CJ et al. Falling CV Mortality in CHF Trials. J Am Coll Cardiol HF 2015;3:603-14.
Mortality Benefits Only Found in Heart Failure Patients with Reduced Ejection Fraction
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Mortality and Hospitalization in OPTIMIZE-HF Registry: HFrEF vs. HFpEF
Fonarow et al. J Am Coll Cardiol. 2007;50(8):768-77.
3.9
9.8
29.9
3
9.5
29
2.9
9.3
30.9
0
5
10
15
20
25
30
35
In-hospital mortality Post-discharge mortality Rehospitalization
HFrEF HFmrEF HFpEF
p = 0.887
% o
f p
atie
nts
p = 0.647
p = 0.366
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Increasing Hospital Admissions for HFpEF
Owan T.E. et al. N Engl J Med 2006;355:251-9.
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Comparative Survival: HFrEF vs. HFpEF
Owan T.E. et al. N Engl J Med 2006;355:251-9.
Survival has improved in HFrEF but NOT HFpEF
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Different Phenotypes of Heart Failure
EF ≤ 40 EF ≥ 50
“HFrEF” “HFpEF”
http://www.biomerieux-diagnostics.com/heart-failure. Website accessed 7/29/16.
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Epidemiology: Heart Failure with Preserved Ejection Fraction
Dhingra A et al. Curr Heart Fail Rep (2014);11:354-365.Owan T.E. et al. N Engl J Med (2006);355:251-9.
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How do patients with heart failure die?
PRESERVED EJECTION FRACTION
Non-CV deaths,
49%Other CV deaths,
22%
Coronary heart
deaths, 29%
REDUCED EJECTION FRACTION
Non-CV deaths,
36%
Other CV deaths,
21%
Coronary heart
deaths, 43%
Henkel D.M. et. al. Circ Heart Fail. 2008;1:91-97.
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Modes of Cardiovascular Death in I-PRESERVE Trial
Sudden Death44%
Pump Failure24%
Stroke14%
MI8%
Other10%
Mode of CV Death
Chan MM et al. Eur J Heart Failure. 2013;15:604-613.
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Risk Factors and Comorbidities Associated with HFpEF
34.6 35.5
48
63.7
28.5
6.5
55.7
41.4
62.7
52.9
41.3
2.6
0
10
20
30
40
50
60
70
Female Obesity Hypertension CAD Afib Severe valvedisease
HFrEF HFpEF
% o
f p
atie
nts
Owan T.E. et al. N Engl J Med 2006;355:251-9.
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Heart Failure with Preserved Ejection Fraction Pathophysiology
Borlaug, B.A. Nat. Rev. Cardiol. 11. 507-515(2014).
Systemic Inflammation
(release of interleukin-6 and
tumor necrosis factor α)
Diabetes
Hypertension
Obesity
Chronic Kidney Disease
Atrial Fibrillation
Diastolic dysfunction
Arterial stiffnessChronotropic
incompetenceAbnormal LV
systolic functionPulmonary HTN
Coronary Vascular Endothelial Dysfunction and Reduced Vasodilator Response
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Distinct Pathophysiology: HFrEF vs. HFpEF
Curr Probl Cardiol 2016;41:145-188.
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End diastolic pressure volume relationship
http://www.cvphysiology.com/Cardiac%20Function/CF014.htm. Accessed August 4th 2016.Borlaug, B.A. Nat. Rev. Cardiol. 11. 507-515(2014).
Exercise intolerance and peripheral edema are hallmark clinical symptoms
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Clinical Presentation of HFpEF vs. HFrEF
Sign/Symptom HFpEF HFrEF
Dyspnea on exertion 60% 73%
Nocturnal dyspnea 55% 50%
Lower extremity edema 35% 46%
Rales 72% 70%
Circulation. 2002;105:1387-93.; J Am Coll Cardiol. 2007;50:768-77.; Ann Med 2013;45:37-50.
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2013 ACC/AHA/HFSA HFpEF Recommendations
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Treatment Patterns HFpEF vs. HFrEF
Fonarow G.C. et al. J Am Coll Cardiol 2007;50:768-77.
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Pharmacologic Treatment Strategies in HFpEF
• Treatment of volume overload and congestion
•Treatment of hypertension
• Renin-angiotensin-aldosterone blockade
•Aldosterone receptor antagonists
•Angiotensin Receptor NeprilysinInhibitor
• β – blockade
• Digoxin
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•Class I recommendation (LOE C) for symptomatic management
• No mortality benefit
• Sudden decreases in LV volumes may result in decrease in cardiac output
• Diuretic resistance is common
Treatment of volume overload and congestion
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Managing Diuretic Resistance
• Braking phenomenon
• RAAS and SNS
• RBF and GFR
• Plasma albumin
• Cardiac Output
• CVP
Reduced absorption of loop diuretic
Unable to bind to albumin
Distal Na reabsorption
- Reduced filtration
- Organic acids compete with
active transport
Switch loop diuretic
(furosemide, bumetanide, torsemide)
Combination diuretic therapy
(add metolazone, acetazolamide or mineralocorticoid antagonist)
Intravenous administration
(ED admission or infusion clinic)
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Loop diuretic selectionFurosemide (Lasix®) 1,3 Torsemide
(Demadex®)2Bumetanide(Bumex®)1,2
Ethacrynic Acid
(Edecrin®)2
IV loading doses 40 mg 20 mg 1 mg 50 mg
Max total daily dose 600 mg 200 mg 10 mg 200 mg
Bioavailability 10 – 100% 80 – 100% 80 – 90% 100%
Duration of action 6 – 8 hours 12 – 16 hours 4 – 6 hours 6 hours
Comments diuresis w/in 10 – 20 minutes; peak diuresis in 1.5 hours
diuresis w/in 10 minutes of IV dose; peak diuresis at 60 minutes
peak diuresis w/in 75minutes
usually reserved for pts with documented sulfa allergy
1. bioavailability adversely affected by food 2. IV : PO conversion is 1:1 3. IV : PO conversion is 1:2
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PA Pressures and Pathophysiology of Congestion
Adamson PB, et al. Curr Heart Fail Reports 2009Stevensen LW et al. Circ Heart Fail. 2010 Sep;3(5):580-7.
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CardioMEMS™ HF System
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Hemodynamic Management of Patients with HFpEF
0
1
2
3
4
5
6
7
8
9
Medication Changes
Cardiomems Control
Adamson, PB. et al. Circ Heart Fail. 2014;7:935-944.
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Treatment of hypertension
Beckett NS et al. N Engl J Med 2008;358:1887-98.
Ventricular-arterial stiffening in HFpEF leads to dramatic elevations in blood pressure
Treating hypertension can lower risk of developing HF by > 50%
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Renin-angiotensin aldosterone system inhibitors
2003: CHARM Study: Candasartan 2006: PEP-CHF Study: Perindopril 2008: I-PRESERVE: Irbesartan
HR 0.95; 95% CI 0.86-1.05; p=0.35
Time to death or CV hospital admission
CHARM Preserved Trial. Lancet 2003;362:777-781.PEP-CHF. Eur Heart J 2006;27:2338-45.I-PRESERVE Trial. N. Engl J Med 2008;359:2456-67.
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ALLHAT Study: Chlorthalidone
0 1
vs. lisinopril
vs. amlodipine
vs. doxazosin
0.74 (95% CI, 0.56 to 0.97)
0.69 (95% CI, 0.53 to 0.91)
0.53 (95% CI, 0.38 to 0.73)
Risk of developing HFpEFcompared to chlorthalidone
chlorthalidone worsechlorthalidone better
Davis BR et al. Circulation. 2008;118:2259-2267.
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126128130132134136138140142144146148
SB
P, m
ea
n,
mm
Hg
Systolic Blood Pressure Over Time
Chlortalidone
Amlodipine
Lisinopril
Blood pressure effects and achievement of BP goals in ALLHAT
50
52
54
56
58
60
62
64
66
68
70
% Achieved BP Goal
Chlorthalidone
Amlodipine
Lisinopril
vs. amlodipine, p < 0.09vs. lisinopril, p < 0.001vs. amlodipine, p < 0.03
vs. lisinopril, p < 0.001
ALLHAT. JAMA. 2002;288:2981-2997.
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Blood pressure reduction: magnitude of benefit
Trial Δ in systolic blood pressure, mm Hg
Δ in diastolic blood pressure, mm Hg
compared to placebo
ALLHAT 11.4 8.9 --
HYVET 15 6.1 p < 0.001
CHARM 6.9 2.9 p < 0.0001
PEP-CHF 3 -- p < 0.03
I-PRESERVE 3.8 2.1 p < 0.05
ALLHAT. JAMA. 2002;288:2981-2997.CHARM Preserved Trial. Lancet 2003;362:777-781.PEP-CHF. Eur Heart J 2006;27:2338-45.I-PRESERVE Trial. N. Engl J Med 2008;359:2456-67.
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Intensive Blood Pressure Control and Outcomes: SPRINT Study
0 1
Heart Failure
Myocardial Infarction
Stroke
0.62 (95% CI, 0.45 to 0.84)
0.83 (95% CI, 0.64 to 1.09)
0.89 (95% CI, 0.63 to 1.25)
Standard TreatmentIntensive Treatment
1st Occurrence of CV Event
0.75 (95% CI, 0.64 to 0.89)
-14.8
-7.6
Δ SBP Δ DBP
Intensive Treatment*
The SPRINT Research Group. N Engl J Med 2015;373:2103-16.
*intensive treatment arm = goal SBP < 120 mm Hg; standard treatment arm = goal SBP < 140
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• No evidence of mortality benefit when using RAAS inhibitors
•Use of RAAS inhibitors should be guided by comorbidities
•ARB’s may reduce hospitalizations in patients with HFpEF (Class IIa, LOE C)
• Blood pressure reduction strongly correlated with HFpEF prevention• evidence with chlorthalidone
• More stringent BP goals may be warranted in patients with HFpEF
Summary: Inhibition of RAAS and Intensity of Blood Pressure Reduction
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Mineralocorticoid Receptor Antagonists
ALDO-DHF Trial
Edelmann F. JAMA. 2013;309(8):781-791.
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Mineralocorticoid Receptor Antagonists: TOPCAT study
TOPCAT Investigators. N Engl J Med 2014;370:1383-92.
No difference in death from CV causes Lower incidence of HF hospitalization
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Regional differences in TOPCAT: Post-hoc analysis
North and South Americas (n=1767) Russia/Georgia (n=1678)
Total events: 522MRA vs. placebo event rate: 10.5% vs. 12.6%, p = 0.026
Total events: 149MRA vs. placebo event rate: 2.5% vs. 2.3%, p = 0.58
Patients enrolled in Russia/Georgia were younger, had less atrial fibrillation and diabetes
Pfeffer MA.et al. Circulation. 2014;131:00-00.
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• No overall mortality benefit, but consider regional variation
• May reduce HF hospitalizations
• May improve hemodynamic parameters and structural heart abnormalities
•Useful to maintain potassium homeostasis in patients on diuretic therapy
• May be useful in resistant hypertension
Place in therapy: Mineralocorticoid Receptor Antagonists
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Beta-blocker therapy in HFpEFOPTIMIZE-HF Registry: Propensity Matched Cohort Study of 1,099 Pairs of HFpEF Patients1
1. Patel K et al. Int J Cardiol. 2014;173(3):393-401.2. Aronow WS et al. Am J Cardiol. 1997;80(2):207-209.
One small prospective study demonstrates improvement in overall mortality with propranolol compared to placebo (56% vs. 75%, p < 0.007). No difference in cardiac mortality and all patients had a history of MI.2
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• No evidence for reduction in CV related mortality in HFpEF
• Effect blunted by chronotropic incompetence?
•Rate control issues• Dependent upon baseline HR’s• Improve symptoms in patients with baseline tachycardia
• Worsen symptoms in patients with bradycardia due to chronotropic incompetence
•Use of β-blockers should be guided by comorbidities• History of MI/CAD
• Atrial fibrillation
Place in therapy: Beta-blockers in HFpEF
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Place in therapy: Calcium channel blockers
• Not recommended in HFrEF (Class III (LOE A)
•Theoretical benefit in HFpEF• Rate control
• Improving diastolic filling time
MDPIT Study. Circulation 1991;83:52-60.
Multicenter Diltiazem Postinfarction Trial
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Exercise intolerance and nitrates
• In HFpEF, increase in LV volumes result in dramatic increases in LV pressures
NEAT-HFPEF: Activity levels fall on nitrates in HFpEF
N Engl J Med 2015; 373:2314-24.
Nitrates are commonly used to improve symptoms of exercise intolerance and orthopnea
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Place in therapy: Digoxin in HFpEF
• No mortality or hospitalization benefit
• May be used as an adjunctive agent for improved rate control
• Increasing data suggesting higher mortality in patients with atrial fibrillation
Circulation. 2006;114:397-403.
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Place in therapy: Neprilysin inhibitors in HFpEF
PARAMOUNT Trial: LCZ696 lowers NT-proBNP
Lancet 2012;380:1387-95.
Phase III PARAGON Trial: Expected to complete in 2019
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Place in therapy: Ivabradine in HFpEFIvabradine improves peak VO2
J Am Coll Cardiol 2013;62:1330-8.
Larger studies evaluating clinical outcomes are needed
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• Phosphodiesterase-5 inhibitors• Sildenafil
• Udenafil
• Soluble guanylate cyclase stimulator• Riociguat
• Vericiguat
• Ranolazine
• Nifedipine
Ongoing clinical trials in patients with HFpEF
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Summary: Treatment of HFpEF
Symptoms of HFpEF (normal EF)
HypertensionHR ControlVolume
OverloadAtrial
Fibrillation
Diuretics ß-blockersverapamildiltiazem
Anti-hypertensives
Maintain sinus rhythm,amiodarone
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1. Which of the following drugs has a class I indication for the treatment of heart failure with preserved ejection fraction?
a. bumetanide
b. candasartan
c. Isosorbide mononitrate
d. carvedilol
2. Which of the following drugs is associated with a decreased risk of developing heart failure with preserved ejection fraction?
a. aspirin
b. chlorthalidone
c. amlodipine
d. metoprolol
3. Non-dihydropyridines calcium channel blockers (verapamil, diltiazem) should be avoided in HFpEF?
a. True
b. False
Post-Test Questions
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1. Write down the course code. Space has been provided in the daily program-at-a-glance sections of your program book.
2. To claim credit: Go to www.cshp.org/cpe before December 1, 2016.
Session Code: