STABLE CAD REVASC OR OMT - Livemedia.gr · Boden WE et al. NEJM2007;356:1503-16 3,071 (8.6%)met...
Transcript of STABLE CAD REVASC OR OMT - Livemedia.gr · Boden WE et al. NEJM2007;356:1503-16 3,071 (8.6%)met...
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STABLE CADREVASC OR OMT
TSIAFOUTIS IOANNIS
INTERVENTIONAL CARDIOLOGIST
RED CROSS HOSPITAL
ATHENS
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• I have no conflict of interest
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Stable coronary syndromes: pathophysiology,diagnostic advances and therapeutic needThomas J Ford heartjnl-2017-311446
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Definition of SCAD• Stable Coronary Artery Disease (CAD), or Stable Ischemic Heart
Disease (SIHD), refers to the syndrome of recurrent, transient episodes of chest pain reflecting demand-supply mismatch, that is, angina pectoris.
• Angina is considered to be due to flow-limiting CAD
• Cut-off for obstructive CAD is taken as a stenosis of 70% in a main coronary artery (>2.5 mm) in one angiographic projection, or 50% in two projections, and 50% of the left main coronary artery
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The management
• Detection of obstructive epicardial CAD
• Systemic problems ?? (anaemia , aortic stenosis )
• In patients with obstructive epicardial CAD, the treatment involves optimal medical therapy and consideration of myocardial revascularisation with either percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG)
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• 1/3 of pts no Obstructive CAD
• US Registry 398798 pts
39.2% no evidence of epicardial CADPatel et al New Engl J Med 2010
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“The indications for revascularization in patients with SCAD who receive guideline-recommended medical treatment are the persistence of symptoms despite medical treatment and/or the improvement of prognosis”
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Observational study: Revascularization was associated
with lower risk of cardiac death only in those with >10%
ischemia on perfusion imaging
Hachamovitch et al., Circ 2003
N= 10,627146 Cardiac deaths492 ACS
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PCI vs. Medicine (Pre-OMT Era)
Death
Cardiac death or MI
Nonfatal MI
CABG
PCI
Katritsis & Ioannidis. Circulation. 2005;111:2906-12.
0 21
Risk ratio (95% Cl)
Meta-analysis of 11 randomized trials; N =2950
FavorsPCI Favors MedicalManagement
P
0.68
0.28
0.12
0.82
0.34
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STRATEGY TRIALS OF REVASC IN STABLE CAD : OMT ERA• COURAGE
• BARI 2D
• FAME 2
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PCI Did Not Reduce Death or MI inSIHD Patients
0 1 2 3 4 5 6
0.0
0.5
0.8
0.9
1.0
PCI + OMT
Optimal Medical Therapy (OMT)
0.7
Hazard ratio: 1.050.6 95% CI (0.87-1.27)
P = 0.62
7
Boden WE, et al NEJM 2007
18.5%
19.0%
Years
33% PCI rate in OMT; 21% repeat PCI in PCI group
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PCI Did Not Reduce Death or MI inSIHD Patients
0 1 2 3 4 5 6
0.0
0.5
0.8
0.9
1.0
PCI + OMT
Optimal Medical Therapy (OMT)
0.7
Hazard ratio: 1.050.6 95% CI (0.87-1.27)
P = 0.62
7
Boden WE, et al NEJM 2007
18.5%
19.0%
Years
33% PCI rate in OMT; 21% repeat PCI in PCI group
•Mainly Bare Metal Stents
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Boden WE et al. NEJM 2007;356:1503-16
3,071 (8.6%) met
eligibility criteria
32,468 patients were excluded8,677 Did not meet inclusion criteria
5,155 Had undocumented ischemia
3,961 Did not meet protocol for vessels
6,554 Were excluded for logistic reasons
18,360 Had one or more exclusions
4,513 Had undergone recent (<6 mo)
revascularization
4,939 Had an inadequate ejectionfraction
2,987 Had a contraindication to PCI
2,542 Had a serious coexisting illness
1,285 Had concomitant valvulardisease
1,203 Had class IV angina
1,071 Had a failure of medical therapy
947 Had left main stenosis>50%
722 Had only PCI restenosis (no new lesions)
528 Had complications after MI
35,539 Patients assessed
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BARI 2D: Prompt revascularization did not improve
survival in diabetic patients with SIHD
BARI 2D Study Group. N Engl J Med 2009
BARI 2D
Med group –revasc 19% year 1, 42% by year 5
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BARI 2D: Prompt revascularization did not improve
survival in diabetic patients with SIHD
BARI 2D Study Group. N Engl J Med 2009
BARI 2D
Med group –revasc 19% year 1, 42% by year 5
Only 35% with DES (1st Gen)
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Low risk patients included
Referral bias by randomizing after cath
Revascularization procedures not optimal
(little DES, no FFR, no CABG in
COURAGE)
Design Limitations of COURAGE and
BARI-2D
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Times have changed!!!!
2018
What’s changed ?
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What’s Changed Since
BARI 2D and COURAGE?
• Better Stents
• Better Pharmacotherapy
• More judicious use of PCI for ischemia- producing
lesions (FFR) but with focus on completeness of
revascularization
• PCI optimization (Intravascular imaging)
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Drug Eluting Stents
Strut Thickness
81 m
PolymerThickness
7.8 m
Strut Thickness:
91 m
Polymer
Thickness
4.8 m
Strut Thickness:
97 mPolymer
Thickness
17.8 m
Strut Thickness:
140 mPolymer
Thickness:
13.7 m
XIENCE VENDEAVORCYPHER® TAXUS® Liberté
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• Non uniform polymer coating
• Webbing and bonding
• Delamination
DES Polymer Changes
1st Gen 2nd Gen
• Uniform polymer coating
• No webbing and bonding
• No delamination
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Van Dyck CJ. et al, Catheter Cardiovasc Interv. 2012 Aug 6.
Infl
am
mato
ryC
ell
s/s
tru
t(N
)
InflammationRabbit double-injury iliac artery model at 28 days follow-up
7
15
17
18
16
14
12
10
8
6
4
2
0
XIENCE BMS*ResoluteTM
P = 0.0005
P = 0.0001
N=16 N=16 N=16
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“Revascularisation versus medical treatment in patients with stable coronary artery disease: network meta-analysis”
Windecker S et al
BMJ 2014;348:g3859.
100 trials in 93,553 patients with 262,090 patient years of follow-up
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pati FAME 2
447 vs 441 patients
Combined end point
(Death,MI , urgent revasc)
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Benefit is mainly reduction in urgent revasc
Death MI Urgent revasc
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Trial design
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Primary endpoint result
Change in total exercise time
40
35
30
25
20
15
10
5
0PCI Placebo
Change in e
xerc
ise
tim
e
(seconds)
28.4
(SD 86.3)
p=0.001
11.8
(SD 93.3)
p=0.235
+16.6 sec
(-8.9 to 42.0)p=0.200
Error bars are standard errors of the mean
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ORBITA
• Small study
• Single vessel disease
• Patients had a good exercise capacity to begin with
• Interaction with investigational team x3 /week
• 25% Class 0-1 angina : need for PCI?
• 33% normal FFR or iFR
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Primary endpoint result
Change in total exercise time
40
35
30
25
20
15
10
5
0PCI Placebo
Change in e
xerc
ise
tim
e
(seconds)
28.4
(SD 86.3)
p=0.001
11.8
(SD 93.3)
p=0.235
+16.6 sec
(-8.9 to 42.0)p=0.200
Error bars are standard errors of the mean
Even with
baseline group
differences, 2X
number of
patients enrolled
would have
resulted in
“significance”
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30% of patients with baseline angina were made angina free by PCIVS
15% of patients with baseline angina were made angina free by OMT
Stents had 2x the anti-anginal impact! p=0.107
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30% of patients with baseline angina were made angina free by PCIVS
15% of patients with baseline angina were made angina free by OMT
Stents had 2x the anti-anginal impact! p=0.107
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P=0.1)
Circ, 2018
PCI effect on total exercise time was 20.7 secs (-4.0-+45.4
No relationship to FFR or iFR
%pt
PCI improved stress echocardiography score by 1.07 segment units(0.70-1.44) P<0.0001
Effect increased with FFR (P<0.00001) and with iFR (P<0.00001)
Freedom from Angina at Follow-up
49.5
80
60
40
20
0PCI Sham
Effect on Angina Score
No change in angina frequency (P=0.072)
©2018MFMER |
3765222-1
P=0.006
31.5
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Pci or CABG
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TOTAL REVASC
• CTO TRIALS ???
DECISION CTO
EXPLORE
SHINE CTO
• Residual Syntax score>8
↑ Mortality 5 yrs
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Noble Primary endpoint:
5 YEAR MACCE
HR 1·48 (1·11–1·96); p=0·006628·9%
19·1%
PCI did not show non-
inferiority
and CABG was
superior to PCI
28 %
18 %
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Mortality
Lancet 2016 Dec 3;388(10061):2743-2752
Myocardial Infarction
-- PCI
-- CABG
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Repeat revascularization Stroke
-- PCI
-- CABG
Lancet 2016 Dec 3;388(10061):2743-2752
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Late screen failure
INVASIVE Strategy
OMT3 + Cath +
Optimal Revascularization
CONSERVATIVE Strategy
OMT3 alone
Cath reserved for OMT failures
Stable Patient
Moderate or Severe Ischemia*
Blinded CCTA1
noCore lab anatomy eligible?2
yes
RANDOMIZE
1CCTA may not be performed in participants with eGFR <60 mL/min 2Exclude participants with LM disease or no obstructive disease 3OMT=optimal medical therapy
Average 4 Years of Follow-up
Primary Endpoint: Composite of CV Death and MI
ISCHEMIA: Design
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STABLE CAD
ISCHEMIA DRIVEN REVASC
AND OMT
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ΚΩΝΣΤΑΝΤΙΝΟΣ ΛΟΥΤΣΙΔΗΣ1956-2018