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Success with Heart Failure: What’s in our medicine bag?

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Presentation on theme: "Success with Heart Failure: What’s in our medicine bag?"— Presentation transcript:

1 Success with Heart Failure: What’s in our medicine bag?
J. Susie Woo MD, FACC Virginia Mason Cardiology February 20, 2015

2 The Problem HF is common HF is expensive Increasing in prevalence
Lifetime risk of 20% (1:5) after age 40 HF is expensive Most common cause of hospitalization in pts >65 yo 5% of total healthcare budget ($32 billion/yr)

3 HF is deadly 20% mortality in 1 year 50% mortality in 5 years n=216
Senni M et al. Circ 1998;98:

4 Clinical diagnosis Based on signs and symptoms of volume overload
DOE, orthopnea, PND Weight gain Edema, ascites

5 Jugular venous pressure
Clear lungs and/or CXR do not exclude heart failure!

6 Supportive testing CXR Diagnostic workup BNP
Echocardiogram HFrEF vs. HFpEF Dilated or non-dilated Ischemic vs. non-ischemic LVH, diastolic function Valve disease RV fxn, pulmonary pressures Volume status Diagnostic workup CMP, CBC, Ca/Mg, TSH, lipid panel ECG Stress testing and/or coronary angiogram

7 Etiologies Hypertension Valvular disease Viral myocarditis
Coronary disease Hypertension Valvular disease Viral myocarditis Diabetes, Obesity Toxic (alcohol, cocaine, chemotherapy) Peripartum, Familial, Idiopathic Sarcoid, Amyloid, Hypertrophic

8 Biomarkers BNP Troponin Much lower in obese pts Increased with age
Increased in CKD Higher in women Lower in HFpEF Should not be used in isolation to adjust diuretics Troponin Can be elevated in decompensated HF Low grade (<2.0) Increased in CKD Poor prognostic indicator

9 Classification Hunt SA et al. JACC 2001;38:2101-13.
Farrell MH et al. JAMA 2002;287:890-7.

10 Stage A Stage B Stage C At risk:
HTN, CAD, DM, metabolic syndrome, obesity, cardiotoxins, family h/o CM Heart disease no HF symptoms MI, LVH, low EF, valvular disease Heart disease, prior or current HF SOB, reduced exercise tolerance Treat HTN, lipids Quit smoking Regular exercise Avoid alcohol, drugs ACEI/ARB for vascular disease or DM ACEI/ARB Beta blockers Diuretics Salt restriction ACEI/ARB Beta blockers Aldosterone antag Digoxin Nitrates/hydraazine ICD CRT

11 Key points Heart failure has established risk factors
Heart failure can be prevented Evolving, dynamic syndrome with symptomatic and asymptomatic phases Morbidity and mortality can be reduced by treatments specific to stage/class

12 Pathophysiology Adapted from Maron & Rocco, 2011.

13 Neurohormonal Imbalance in HF
ANP BNP Nitric Oxide Bradykinin Prostaglandins Norepinephrine Angiotensin II Endothelin Aldosterone Vasopressin Vasodilation Natriuresis/diuresis SNS suppression RAAS suppression Vasoconstriction Fluid Retention Fibrosis / remodelling Tachycardia Adapted from Rev Cardiovasc Med. 2001;2(suppl 2):S2-S6.

14 Management of HFrEF

15 The patient’s role Salt restriction (2000 mg / 24 hrs)
Fluid restriction Daily weights Call for weight increase of 3# in 1 day, total of 5# Avoidance of NSAIDs and alcohol CPAP in those with sleep apnea Regular physical activity Medication compliance

16 Cardiac Rehab CMS approved in 2014 for stable symptomatic HFrEF
EF ≤35%, NYHA II-IV ≥6 weeks since last CV hospitalization or procedure HF-ACTION: decreased all-cause mortality or hospitalization (adjusted HR 0.89, p=0.03) O’Connor CM et al., JAMA 2009;301(14):

17 Drugs in our medicine bag
Diuretics ACE inhibitors / ARBs Beta blockers Hydralazine/nitrates Digoxin Aldosterone antagonists

18 Loop Diuretics Furosemide Torsemide & bumetanide Ethacrynic Acid
6 hr half-life Variable oral bioavailability Torsemide & bumetanide Almost 100% bioavailability Ethacrynic Acid For sulfa-allergic EQUIVALENT DOSES Furosemide 40 mg po Furosemide 20 mg IV Torsemide 20 mg po/IV Bumetanide 1 mg po/IV Ethacrynic 50 mg qd would be equivalent Fear progressive volume overload over hypotension and renal insufficiency

19 Thiazide Synergy Useful in refractory volume overload
May be administered simultaneously with loop Hydrochlorothiazide Ineffective if GFR < 30 ml/min Metolazone Avoid daily therapy or long courses of treatment Start with 2.5 mg, 2-3 days/wk BEWARE OF HYPOKALEMIA, hyponatremia, and worsening renal function Sequential nephron blockade. Class effect. Metolazone peak effect after several hrs (slow, variable absorption) Metolazone (or 5-10 mg qd x 3 days only) HCTZ needs glomerular filtration to gain access to the kidney tubules Jentzer JC et al., JACC 2010;56:

20 ACE-Inhibitors Indicated in all patients with HFrEF (EF ≤40%)
RAAS suppression 30% decrease in mortality 25% decrease in hospitalization PEARLS More is better Dose twice daily for neurohormonal blockade Can uptitrate quickly in pts with normal renal function Caution in pts with Cr>3.0 or K>5.0 Hypotension or renal impairment only in 5% in CONSENSUS and SOLVD Avoid if Cr>3.0 or K>5.0 Check chem7 after each dose increase Trial Population Target dose (mg) CONSENSUS, 1987 NYHA IV Enalapril 20 bid SOLVD, 1991 EF ≤35%, NYHA II-III Enalapril 10 bid SAVE, 1992 Post-MI, EF ≤40% Captopril 50 tid

21 ARBs Second line (for the ACEI intolerant)
May be as effective as ACEI, not superior ELITE, ELITE II, VALIANT, RESOLVD, OPTIMAAL Decreases CHF hospitalization and CV death Val-HEFT, CHARM Losartan 150 mg qd more effective than 50 mg qd Long-term studies have shown similar hemodynamic and neurohormonal effects as ACEI, but inconsistent effects on symptoms or exercise tolerance No difference in ALL CAUSE mortality Val-HEFT 13% lower risk of combined endpt For addition Val-HEFT in 2001 subgroup analysis suggested harm, CHARM-added suggested additional benefit CHARM: EF<40% with and w/o ACEI, and EF>40% LEVY: losartan qd, valsartan 160 bid, candesartan qd, telmisartan qd ELITE study compared losartan with captopril in 722 pts >65yo with mild-severe CHF designed as tolerability study (survival not primary endpt), reported reduction in all-cause mortality (4.8 vs 8.7% in pts treated with losartan); no difference in renal fxn, hospitalization, combined m/m risk LIMITATIONS: study size and relatively short f/u ELITE II mortality study failed to show losartan superior to captopril, but confirmed improved losartan tolerability RAAS: evaluate safety and tolerability of combo (losartan and enalapril) vs standard or high-dose enalapril RESOLVD: class II-IV, candesartan vs enalapril or both; no significant difference in exercise tolerance or cardiac events OPTIMAAL: losartan 50 vs captopril 50 bid, 2002, trend for captopril to be better for all-cause mortality, and SCD, but losartan better tolerated – post-MI patients Drug Initial dose (mg) Target dose (mg) Candesartan 4 – 8 qd 32 qd Losartan 25 – 50 qd 100 – 150 qd Valsartan 20 – 40 bid 160 - bid Konstam MA et al., HEALL Investigators, Lancet 2009;374(9704):

22 Nitrate / Hydralazine Venous and arterial vasodilators
ISDN 10 tid or Imdur 30 qd (goal 120 qd) Hydralazine 25 tid – qid (goal 100 tid or 75 qid) V-HeFT I: ISDN-H vs. placebo Lower mortality and improved EF in ISDN-H vs. placebo (26% vs. 34%) at 2 yrs, p<0.03 V-HEFT II: ISDN-H vs. enalapril Lower mortality in enalapril vs. ISDN-H (18% vs 25%), p=0.016 Cohn JN et al. NEJM 1986;314: and 1991;325:303-10

23 Nitrate / hydralazine Must be used in combination
TID dosing is difficult Should be used in all African-Americans with symptomatic HFrEF despite ACEI and BB (BiDil and the A-HeFT trial) 15 10 n=32 10.2% 6.2% Mortality P=0.02 n=54 5 n=1050 Placebo Fixed-dose BiDil Taylor, AL et al., NEJM 2004;351:

24 Beta-blockers SNS inhibition
Slows HF progression, reduces hospitalization; Improves EF, symptoms and survival in NYHA II-IV CHF 34% decrease in mortality U.S. Carvedilol (1996), MERIT-HF (1999), CIBIS II (1999) NOT a class effect Drug Initial dose (mg) Target dose (mg) Carvedilol 3.125 bid 50 bid Carvedilol CR 10 qd 80 qd Metoprolol succinate 12.5 – 25 qd 200 qd Bisoprolol 1.25 qd

25 COMET 40% vs 34% p=.0017 metoprolol tartrate carvedilol
Poole-Wilson PA et al. Lancet 2003;362:7-13.

26 (and a little is much better than none)
More is better (and a little is much better than none) 6.

27 Beta blocker Pearls Start only when euvolemic
Double dose every 2 wks until target Do not hold during a decompensation Use metoprolol succinate or bisoprolol (β1-selective) for pts with asthma/RAD or lower BP Fear not the asymptomatic bradycardia Do not use atenolol or metoprolol tartrate Goal to be at target dose in 8-12 wks

28 Clinical Case 60 yo M with ischemic CM, EF 25-30% on last Echo, presents to clinic with 1 week of increasing dyspnea, orthopnea and LE edema. Exam: BP 91/65, HR 92, JVP at 19 cm H20, fine bibasilar crackles, distant heart sounds with +S3, palpable liver edge, warm extremities with 1+ pitting LE edema. Meds: ASA 81 qd, carvedilol 12.5 bid, lisinopril 20 bid, digoxin 0.25 qd, simvastatin 40 qhs, torsemide 50 bid, KCl 40 bid Labs: Na 132, K 4.4, BUN 38, Cr 2.2 (from baseline 1.5), AST 69, ALT 91, AlkP 105, Tbili 2.4, Dig level 1.2 (reference range ) ECG shows NSR 90 bpm, LBBB, and old anterior infarct.

29 Which medication(s) would you change?
Carvedilol Lisinopril Digoxin Simvastatin Torsemide

30 Digoxin Cardiac glycoside: inhibits Na/K pump , increases intracellular calcium (inotrope) For patients with symptomatic HFrEF p=0.8 p<0.001 NEJM 1997;336:525-33

31 Digoxin dose and Mortality
Rathore SS et al., JAMA 2003;289:871-8.

32 Digoxin Pearls Narrow therapeutic window! Target level: 0.5-0.9
Watch for hypokalemia, hypomagnesemia Toxicity may occur at lower digoxin levels Watch for drug interactions Amiodarone, clarithromycin, quinidine Typical dose no higher than 0.25 qd 0.125 qod – qd if >70 yrs, reduced renal function or low lean body mass (women)

33 Clinical Case 60 yo M with ischemic CM, EF 25-30% on last Echo, presents to clinic with 1 week of increasing dyspnea, orthopnea and LE edema. Exam: BP 91/65, HR 92, JVP at 19 cm H20, fine bibasilar crackles, distant heart sounds with +S3, palpable liver edge, warm extremities with 1+ pitting LE edema. Meds: ASA 81 qd, carvedilol 12.5 bid, lisinopril 20 bid, digoxin 0.25 qd, simvastatin 40 qhs, torsemide 50 bid, KCl 40 bid Labs: Na 132, K 4.4, BUN 38, Cr 2.2 (from baseline 1.5), AST 69, ALT 91, AlkP 105, Tbili 2.4, Dig level 1.2 (reference range ) ECG shows NSR 90 bpm, LBBB, and old anterior infarct.

34 Anything other changes to his treatment regimen?

35 Aldosterone Antagonists
Decrease sxs, mortality & HF hospitalization RALES (spironolactone) EF <35%, NYHA 3-4 EPHESUS (eplerenone) EF <40% after acute MI EMPHASIS-HF (eplerenone) EF <35%, NYHA 2 Pitt et al, NEJM 1999;341: and NEJM 2003;348: Zannad F et al, NEJM 2011;364:11-21.

36 Aldosterone Antagonist Pearls
Weak diuretics No gynecomastia with eplerenone AVOIDING HYPERKALEMIA Contraindications: baseline K >5.0 baseline Cr >2.5 in men, >2.0 in women (GFR <30) Start with 12.5 mg qd (or qod if GFR 30-49) Discontinue or decrease potassium supplement Chem7 at 1 wk, 1 month, 3 months, q3-6 months avoid in the unreliable patient Hold for dehydration, diarrhea, or K >5.5

37 Clinical Case 60 yo M with ischemic CM, EF 25-30% on last Echo, presents to clinic with 1 week of increasing dyspnea, orthopnea and LE edema. Exam: BP 91/65, HR 92, JVP at 19 cm H20, fine bibasilar crackles, distant heart sounds with +S3, palpable liver edge, warm extremities with 1+ pitting LE edema. Meds: ASA 81 qd, carvedilol 12.5 bid, lisinopril 20 bid, digoxin 0.25 qd, simvastatin 40 qhs, torsemide 50 bid, KCl 40 bid Labs: Na 132, K 4.4, BUN 38, Cr 2.2 (from baseline 1.5), AST 69, ALT 91, AlkP 105, Tbili 2.4, Dig level 1.2 (reference range ) ECG shows NSR 90 bpm, LBBB, and old anterior infarct. Aldo after Cr back to baseline

38 Devices ICD (primary prevention) CRT (BiV) EF ≤35%, NYHA 2-3
At least 40 days post-MI GDMT x 3 months CRT (BiV) EF ≤35%, NSR, QRS ≥150, NYHA 3-4 on GDMT EF ≤35%, NSR, LBBB, QRS ≥120, NYHA 2-4 on GDMT EF ≤35%, Afib, if expect 100% pacing

39 Supplements Omega-3 PUFA Coenzyme Q10
“reasonable in NYHA 2-4 pts with HFrEF or HFpEF to reduce mortality and CV hospitalization” GISSI-HF, n=6975: fish oil 1 g qd vs. placebo All-cause mortality 27% vs 29% (p=0.04) Coenzyme Q10 Q-SYMBIO, n=420, NYHA 3-4: CoQ mg tid vs. placebo MACE endpt 15% vs 26% (HR 0.5; p=0.003) Low event #s: 18 vs 34 CV deaths (p=0.039) Yancy CW et al., Circ 2013;128:e240-e327. GISSI-HF Investigators, Lancet 2008; 372: 1223–30. Mortensen, SA et al., JACC HF 2014;2:641-9.

40 LCZ696 Inclusion: EF ≤40%, NYHA II-IV, BNP >140 (NT-pro >600)
Exclusion: SBP <100, GFR <30, K >5.2, h/o angioedema

41 LCZ696 = sacubitril + valsartan moiety
Inhibitor of neprilysin = endopeptidase that degrades vasoactive peptides (NPs, adrenomedullin, bradykinin) p= Valsartan component =160 mg in 200 mg pill Counters vasoconstriction, sodium retention, maladaptive remodelling Combined nepro + RAAS inhibition superior than each alone but with ACE  angioedema

42 Progress + LCZ696? Levy WC et al., Circ 2006; 113: 1424-1433.
Only 15% in LCZ trial had ICD 17% vs 20% mortality in LCZ696 study at median f/u 27 months Levy WC et al., Circ 2006; 113:

43 Final points HF is preventable
Always assess volume and symptomatic status Our medicine bag floweth for HFrEF patients Remember diet and exercise Counselling and communication are integral to preventing morbidity/mortality

44 HF program at VM Multidisciplinary clinic 2 physicians 2 ARNPs
3 nurses Pharmacists (ACC) On-site laboratory Social worker Dietician Palliative care team EP & cath lab support Consortium of 17 health care delivery systems & Dartmouth Institute for Health Policy and Clinical Practice mission of the HVHC is to improve healthcare value – defined as quality and outcomes over costs, across time Serve as model for national healthcare reform

45 Thank you


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