crtp ou crtd? quels arguments pour notre choix? (pr c. leclercq)
TRANSCRIPT
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CRT-P or CRT-Dquels arguments pour notre choix?
C. LeclercqDepartment of Cardiology
Centre Cardio-Pneumologique Rennes
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Why an ICD in patients with reduced LVEF?
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Mechanisms of sudden death in HF
Ventricular fibrillation
Asystole
Electrical-mechanical dissociation
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Sudden cardiac death in heart failure population
Controlled studies / Control groups
Study year n grade 1-year mortality SCDV-HEFT (1) 1986 642 II-III 12% 45%V-HEFT (2) 1991 804 II-III 15% 50%CHF-STAT 1995 674 II-III 15% 49%RALES 1999 822 III-IV 23% 35%CIBIS II 1999 1320 III-IV 14% 36%MERIT-HF 1999 2001 II-IV 11% 35%Copernicus 2001 2289 IIIb-IV 18% 36%Ephesus 2003 3319 I-IV 16% 36%Emphasis 2010 1364 II 10% 35%
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Modes of Death in HF
MERIT-HF Study Group. Effect of metoprolol CR/XL in chronic heart failure: metoprolol CR/XL randomized intervention trial in congestive heart failure (MERIT-HF). LANCET. 1999;353:2001-07.
NYHA II12%
64%24%
CHFOther Sudden Death
Deaths = 103
NYHA IV
56%
11%
33%CHF OtherSudden Death
Deaths = 27
NYHA III26%
15%
59%
CHF Other Sudden Death
Deaths = 232
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Influence of Medical Treatment on the Incidence of Sudden Death in Heart Failure
vs placebo 1-year mortality sudden death
Amiodarone* - 23 % (NS) - 19 % (NS)
ACE-inhibitors* - 13 % (p = 0.003) NS
Spironolactone (RALES) - 33 % (p < 0.001) - 30 % (p = 0.02)
Beta-blockers* - 33 % (p < 0.001) - 35 % (p<0.001)
Eplerenone - 15% (p = 0.008) - 21% (p = 0.03)
* meta-analysis
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Adapted from Eucomed Source population data: OECD
Units by Eucomed based on reports from major manufacturers
CRTD implant rate 2005-2010 evolution: growing constantly everywhere, but wide variability by Country
Europe 2010 average
~42.000 CRTD in 2010(over 420 mil. inhab.)
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Adapted from Eucomed Source population data: OECD
Units by Eucomed based on reports from major manufacturers
Europe 2010 average
CRTP implant rate 2005-2010 evolution: towards a rediscovery
~13.000 CRTP in 2010(over 420 mil. inhab.)
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CRT in France
2009 2010 2011 20120
1000
2000
3000
4000
5000
6000
7000
8000
9000CRTDCRTP
2009 2010 2011 20120
20
40
60
80
100
120
140
160
IHMT Data
Centers (n)Implants (n)
65 %
35 %
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CRT-P ou CRT-Dy a-t-il des différences?
• Techniques d’implantation: – Sondes de défibrillation moins maniables: +/-– Position de la sonde de défibrillation apex versus
septum (études SEPTAL et SEPTAL CRT): non– Nécessité de réaliser un DFT (de moins en moins)– Nécessité d’une AG (11% dans le registre
européen; 12% à Rennes)
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CRT et « safety » : no differences between CRT-P/CRT-D
McAlister . JAMA 2007; 297:2502-14
CRT (54 trials) CRT-ICD (36 trials) (6123 pts) (5199pts)
Peri-implantationImplant success 93% 94%Implant death 0,3% 0,5%
Mechanical malfunction 4,0% 4,6%Post-Implantation
Device malfunction 5,4% 5,0%Lead malfunction 6,6% 7.2%Infections 1,8% 1,1%Arrhythmias 12,5% 6,4%
Short FU time 6 to 12 months
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Event-free lead function: comparison early models versus recent models
Event-free lead function: all leads
Circulation 2007; 115: 2474-2480
Estimated lead survival rate: 85% at 5 years; 60% at 10 years Consensus report on pacemaker lead performance: target lead survival > 95% at 10 years
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CRT et « safety » : Infections
Romeyer-Bouchard C. Eur Heart J 2010;31:203-10
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• Bénéfice clinique?– Sondes PM et DAI en termes de
resynchronisation cardiaque?
– Protection contre la mort subite?
CRT-P ou CRT-DY a-t-il des différences?
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Heart failure hospitalizations
McAlister . JAMA 2007; 297:2502-14
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Mortality
McAlister . JAMA 2007; 297:2502-14
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Rivero-Ayerza M et al. Effects of CRT alone on overal mortality and mode of death. Eur Heart J 2006; 27: 2682-88
Mode of death in patients treated with CRT alone vs control
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COMPANION, CARE-HF, CARE-HF extension : modes de décès
Mort subite Défaillance cardiaque
Mort subite Défaillance cardiaque
Mort subite Défaillance cardiaque
0.0%
10.0%
20.0%
30.0%
40.0%
50.0%
60.0%
23%
44%
32%
47%
36%
42%
37%40%
35%
40%
32%
38%
16%
50%
OPT CRT-P CRT-D
Mor
talit
é
COMPANION (14m) CARE-HF ext (36,4m)CARE-HF (29.4m)
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Additional value of ICD to CRT Post-hoc comparison of CRT-D vs CRT in COMPANION:
All-cause Mortality
HR (CRT-D vs CRT) P
All patients (N=1212) 0.92 0.33
Ischemic etiology (N=660) 1.02 0.87Non-ischemic (N=552) 0.57 0.02
NYHA Class III (N= 1048) 0.76 0.08NYHA Class IV (N=164) 0.99 0.98
SBP<112 mmHg 0.98 0.92SBP>112 mmHg 0.69 0.08
M Bristow Circulation 2005, 112: II-673 (AHA 2005)
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Sudden death in patients with ICD
Mitchell. JACC, 2002; 39:1323-8
n = 320 deaths
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Poole et al, N Engl J Med 2008; 359:1009-17
ICD Shock and the Risk of Death
Prognostic Importance of Defibrillator Shocks in Patients with Heart Failure
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27%
43%
19%
53%
17%
32%
12%
Diabetes Stroke/TIA
RenalDysfuncti
on
Atrial/Arrhythmi
as
Hypertension
Respiratory
Disease
Dementia
La population IC est différente de celle des essais cliniques
notamment en termes de comorbidités
Cleland Eur Heart J 2003;24:442-63
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Goldenberg. J Am Coll Cardiol 2008; 51: 288-96,
U-Shaped Curve for ICD Efficacy
Risk stratification for primary prevention
NYHA class II, age > 70 years, BUN > 26 mg/dl, QRS > 0.12 s,
and atrial fibrillation.
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Score 0
Score>1
Score 1
Score 2
Score>3
Goldenberg. J Am Coll Cardiol 2008; 51: 288-96,
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Le “coût-efficacité”
Yao. Eur Heart J 2007;28: 42-51
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ICD* CABG+ Statins‡
Economic impact of over- prescribing
antibiotics^
Lost dollars from health care fraud,
abuse and waste^^
2 8 930
100
294
90.0
50.0
100.0
150.0
200.0
250.0
300.0
350.0An
nual
Cos
t in
Billi
ons
PTCA†
*Medtronic estimations (total number of implants x $30,000).†Morgan Stanley Dean Witter Research Report, 2001 / CMS reimbursement data.+AHA 2002 / Cowper, et al; American Heart Journal. 143;(1):130–9.‡ Pharmacy Times, “Top 200 drugs of 2000”; 2001.^ National Institute of Health, Antimicrobial Resistance, NIAID Fact Sheet.^^ U.S. General Accounting Office 2001.1 Woolhandler S, et al. Costs of Healthcare Administration in the United States and Canada. N Engl J Med 344, 2003; 349: 768-75.
$11.6 B—estimated amount due to miscoding,
insufficient documentation, etc. in Medicare
(HCFA 2000 Financial Report)
Healthcare
Administration1
Le “coût-efficacité”Relativisons un peu tout de même!!
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What do the guidelines recommend?
In the absence of proven superiority by trials and the small survival benefit, this Task Force is of the opinion that no strict recommendations can be made, and prefers to merely offer guidance regarding the selection of patients for CRT-D or CRT-P, based on overall clinical condition, device-related complications and cost
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What do the guidelines recommend?
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Sudden death
Lindelfeld. Circulation. 2007;115: 204-12
Death
NYHA class IV
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Comorbidities Renal failure
Van Bommel. J Am Coll Cardiol 2011;57:549–55
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• Les recommandations sont une aide à la décision
• Le bon sens clinique!!!• Patient avec projet de transplantation
cardiaque ou assistance VG: CRT-D• Patient > 80 ans: CRT-P (médiane de survie 13
mois..)• Entre les deux, Le bon sens clinique!!!– âge physiologique, comorbidités, classe NYHA….
Conclusion