Date post: | 18-Dec-2014 |
Category: |
Health & Medicine |
Upload: | medpeds-hospitalist |
View: | 11,164 times |
Download: | 12 times |
Evidence Based Management of Heart Failure with Normal/Preserved Ejection
Fraction
Moises Auron, MD FAAP FACPMoises Auron, MD FAAP FACP
Hospital MedicineHospital Medicine
October 2009October 2009
Diagnostic Criteria
• Symptoms and signs compatible with heart failure
• Left ventricular ejection fraction >50%
• Exclusion of severe valvular disease and pericardial disease
Hunt SA et al. ACC/AHA 2005 Guideline Update for the Diagnosis and Management of Chronic Heart Failure in the Adult. Circulation 112: e154–e235
Epidemiology
• 20% to 60% of patients with HF
• Increasing prevalence
Hunt, et al. 2009 ACCF/AHA Heart Failure Guidelines. (Circulation. 2009;119:e391-e479.
Owan T, et al. NEJM. 2006;355:251-9
Pathophysiology
• Reduced ventricular compliance (myocardial stiffness) and fluid retention
• Abnormal renal sodium handling and arterial stiffness, in addition to myocardial stiffness
• The majority of patients have a history of hypertension
• Most of the patients have evidence of LVH on echocardiography.
• More frequent in elderly women
Hunt, et al. 2009 ACCF/AHA Heart Failure Guidelines. (Circulation. 2009;119:e391-e479.
Pathophysiology
Aurigemma GP. NEJM. 2004;351:1097-105.
Pathophysiology
Cliger C, et al. AJGC. 2006;15:50–57
Aurigemma GP, et al. Circulation 2006; 113: 296–304
Systolic HF
Normal heart
Diastolic HF
Pathophysiology
Single syndrome hypothesis
Ouzounian M. Nature Clin Pract Cardiovasc Med. 2008; 5(7): 375-86
Aging and HF with preserved EF
• Decrease in the elastic properties of the heart and great vessels• Subsequent increase in SBP an increase in myocardial stiffness. • Decrease in ventricular filling due to:
– structural changes in the heart (fibrosis)– decline in relaxation and compliance. – decrease in beta-adrenergic receptor density – decline in peripheral vasodilator capacity
• Elderly patients associated disorders – CAD– DM– aortic stenosis– Atrial fibrillation– Obesity), – Sex-specific women are more susceptible.
Hunt, et al. 2009 ACCF/AHA Heart Failure Guidelines. (Circulation. 2009;119:e391-e479.
Ouzounian M. Nature Clin Pract Cardiovasc Med. 2008; 5(7): 375-86
Myocardial disorders associated with HF and normal LVEF
• Restrictive cardiomyopathy
• Obstructive hypertrophic cardiomyopathy
• Nonobstructive hypertrophic cardiomyopathy
• Infiltrative cardiomyopathies
Hunt, et al. 2009 ACCF/AHA Heart Failure Guidelines. (Circulation. 2009;119:e391-e479.
Hunt, et al. 2009 ACCF/AHA Heart Failure Guidelines. (Circulation. 2009;119:e391-e479.
Diastolic CHF?
Understanding nondiastolic mechanisms of Heart Failure with Normal Ejection Fraction may provide further answers and, more importantly, lead to more therapeutic advances.
Myocardial systolicVentricular
Vascular
Renal
Neurohumoral
Non-CV
Normal EF Heart Failure
Bench T, et al. Current Heart Failure Reports 2009, 6:57–64
Non-diastolic mechanisms
• Volume overload
• Venoconstriction/volume redistribution
• Ventricular vascular coupling abnormalities
• Chronotropic incompetence
• Endothelial dysfunction
Bench T, et al. Current Heart Failure Reports 2009, 6:57–64
Volume overload
Maurer MS. J. Am. Coll. Cardiol. 2007;49;972-981
Hypertension and heart failure in the setting of normal EF
Cliger C, et al. AJGC. 2006;15:50–57
Prolonged QRS and mortality
Hummel SL, et al. J Cardiac Fail 2009;15:553-60.
N=872
Prolonged QRS and mortality
Hummel SL, et al. J Cardiac Fail 2009;15:553-60.
N=872
Diagnosis
• Slow rate of ventricular relaxation is slowed• Elevated LV filling pressure in a patient with
normal LV volumes and contractility.• Clinical diagnosis based on the finding of typical
symptoms and signs of HF in a patient who is shown to have a normal LVEF and no valvular abnormalities (aortic stenosis or mitral regurgitation, for example) on echocardiography.
• Doppler echocardiography (TTE) • BNP levels in addition to TTE improve diagnostic
accuracy.
Hunt, et al. 2009 ACCF/AHA Heart Failure Guidelines. (Circulation. 2009;119:e391-e479.
Echocardiography
Aurigemma GP. NEJM. 2004;351:1097-105.
E = early filling
A = atrial contraction
Echocardiography
Bursi F, et al. JAMA 2006;296:2209-2216.
Echocardiography
Sm = peak systolic velocity
septal side of the mitral valve annulus or base.
Em = peak early diastolic velocityAm = peak atrial contraction velocity
Sanderson JE. Prog Cardiov Dis. 2006;49(3): 196-206
Systolic dysfunction with normal EF
• New doppler echocardiography techniques reveals abnormal ventricular function particularly in the long axis.
• Ejection is relatively preserved because of increased radial function.
Sanderson JE. Prog Cardiov Dis. 2006;49(3): 196-206
Myocardial strain and torsion: Speckle-tracking echocardiography
Circumferential strain from the apical LV level in a healthy individual. Homogenous circumferential distribution of normal systolic strain.
Circumferential strain at the LV apical level in a patient with a LAD-related MI. Reduced systolic shortening (strain) in the anterior, septal, andinferior segments, with marked postsystolic contraction (white arrows). Early septal systolic stretching indicating dyskinesis (red arrow). Normal contraction is seen in the lateral segments.
Edvardsen T. Prog Cardiov Dis. 2006;49(3): 207-14.
Doppler tissue imaging – validated with MRI
“The present study has shown that DTI can quantify LV torsional deformation over time. This novel method may facilitate noninvasive quantification of LV torsion in clinical and research settings.”
Notomi Y. Circulation. 2005;111:1141-1147.)
Cardiac MRI vs. Echocardiography
Rademakers FE. Prog Cardiov Dis. 2006;49(3): 215-27.
Prognosis
HR 1.13; 95%CI 0.94-1.36; P=0.18
Owan TE. NEJM. 2006;355:251-9.
Bhatia RS. NEJM. 2006;355:260-9.
Prognosis
Somaratne JB. Eur J Heart Fail. 2009;11:855-62
Treatment
• Limited evidence. • Use of same drugs as for systolic CHF
justified due to co-morbid conditions – Atrial fibrillation, hypertension, diabetes
mellitus, and coronary artery disease
• The management of these patients is based on the control of physiological factors (blood pressure, heart rate, blood volume, and myocardial ischemia)
Hunt, et al. 2009 ACCF/AHA Heart Failure Guidelines. (Circulation. 2009;119:e391-e479.
Completed trials for HF with preserved EF
Lam CSP. Ann Acad Med. 2009;38(8): 663-666.
Hong Kong trial• ACE vs. ARB vs. diuretics
Yip GWK, et al. Heart 2008;94;573-580.
VALIDD Trial: supporting antihypertensive TxValsartan In Diastolic Dysfunction
Lowering blood pressure improves diastolic function irrespective of the type of antihypertensiveagent used.
Solomon SD. Lancet 2007; 369: 2079–87
OPTIMIZE – HF: Betablockers
Hernandez, et al. JACC. 2009 Jan 13;53(2):184-92
Organized Program to Initiate Lifesaving Treatment in Hospitalized Patients With Heart Failure
OPTIMIZE – HF: Betablockers
Hernandez, et al. JACC. 2009 Jan 13;53(2):184-92
SENIORS: NevibololStudy of the Effects of Nebivolol Intervention on Outcomes and Hospitalisation in Seniors with Heart Failure)
Ghio S, et al. Eur Heart J. 2006;27: 562–568
SWEDIC: Carvedilol
Bergstrom A. Eur J Heart Fail. 2004;6:453-61.
Swedish Doppler-echocardiographic study
Statins in diastolic HF
Fukuta H. Circulation. 2005;112:357-363
RR death [95% CI] 0.20 [0.06 to 0.62]; P=0.005
Ongoing trials
• Trial of Aldosterone Antagonist Therapy in Adults With Preserved Ejection Fraction Congestive Heart Failure (TOPCAT)
• Start Date: August 2006
• Estimated Completion Date: July 2013
• Spironolactone vs. placebo
• N = 4500
ClinicalTrials.gov: NCT00094302
Hunt, et al. 2009 ACCF/AHA Heart Failure Guidelines. (Circulation. 2009;119:e391-e479.