SASCI Visiting Professor Evening Lecture Series 2016 Prof ... · Revascularization for Stable CAD....
Transcript of SASCI Visiting Professor Evening Lecture Series 2016 Prof ... · Revascularization for Stable CAD....
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SASCI Visiting Professor Evening Lecture Series 2016 Prof Augusto Pichard
Lecture:
Revascularisation in 2016: Indications, strategies and techniques in the laboratory
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Revascularization in 2016.Changes in Indications, Strategies and Techniques.
Augusto Pichard, M.D.
Senior Consultant
Innovation and Structural Heart Disease,
Medstar Washington Hospital Center.
Professor of Medicine (Cardiology),
Georgetown University Medical School.
Washington, DC
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11 Cath Labs → 9 Cath Labs (3 Hybrid).
6000 PCIs a year → 3000
12000 diagnostics a year → 6000
> 400 TAVI a year
No pediatric or EP cases.
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Holding Area (Pre and Post Procedure)
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Swing Lab
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Indications for Revascularization in Stable CAD. ESC 2014
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CABG or PCI in Stable CADESC 2014
Extent of CAD
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A Heart Team approach to revascularization is
recommended in patients with unprotected left
main or complex CAD.
Calculation of the STS and SYNTAX scores is
reasonable in patients with unprotected left main
and complex CAD.
Heart Team Approach
I IIa IIb III
I IIa IIb III
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Revascularization for Stable CAD.ESC 2014
• Indications:
– >50% lesion– Persistent symptoms despite optimal medical
therapy.
– RCT and Metanalysis of CABG vs. OMC and PCI vs OMC demonstrated• better angina relief with revascularization• Improved survival for pts with LMCA and 3VCAD.• Greater benefit in pts with impaired LV function.
– DES vs. BMS: Current data proves lower stent thrombosis, MI and death with DES.
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Appropriate Use Criteria (AUC) for
Diagnostic Angio, for PCI and for
CABG.
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Appropriate Use Criteria (AUC)
For Revascularization.
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Appropriate Use Criteria (AUC)
For Revascularization.
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Appropriateness in 500,000 US CasesJAMA 2011;306:53-61
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Society for Cardiac Angiography and Interventions.Appropriateness Criteria Calculation.
“ SCAI AUC Tools “
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• There are no high-quality data on which to base recommendations for performing diagnostic coronary angiography because no study has randomized patients with Stable IHD to either catheterization or no catheterization.
• Additionally, the “incremental benefit” of detecting or excluding CAD by coronary angiography remains to be determined.
• The ISCHEMIA trial is currently randomizing patients with at least moderate ischemia on stress testing to a strategy of optimal medical therapy alone (with coronary angiography reserved for failure of medical therapy) or routine cardiac catheterization followed by revascularization (when appropriate) plus optimal medical therapy.
2014 ACC/AHA/AATS/PCNA/SCAI/STS Focused Update
of the Guideline for the Diagnosis and Management of
Patients With Stable Ischemic Heart Disease.J Am Coll Cardiol. 2014; doi:10.1016/j.jacc.2014.07.017
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National Cardiovalscular Data
Registry (NCDR) in USA.
Monitors and reports PCI activity
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Concerns with Public Reporting.Washington, Feb 2016
ACC and AHA have proposed to exclude from public reporting patients with OOH cardiac arrest and patients in cardiogenic shock.
Public reporting of Physician PCI Mortality could lead to:
- “risk-averse behavior” on the part of physicians
- encouragement to transfer such patients to other facilities.
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PCI in USA for Stable and Unstable CAD.Kim et al. AJC 2014;114:1003-10
ACS
stable
Non Academic
Academic
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Summary
Close scrutiny and public reporting of indications and outcomes for diagnostic and interventional procedures is ongoing.
Intention:
- insure patients are getting maximum benefit from procedures.
- justify the expenses involved in these procedures.
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Angiography (and QCA) is no
Longer the Gold Standard to
Indicate Revascularization
1. Angiography is adequate for:a. mild lesions (20-40%).
b. severe lesions (>80-90%).
2. Angiography is not adequate for
intermediate lesions: 50-80%.
3. Angio is least accurate in LMCA
disease.
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1. Angio is no longer the gold standard
2. IVUS has been the best for severity
analysis
3. FFR proven physiologically accurate
and clinically useful
4. IVUS FFR correlations surprising
5. New paradigm: FFR for inervention or
not. IVUS for prognosis
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QCA inaccurate for Lesion DimensionsWHC: Mintz et al 1996
n = 2545 lesions
IVUS maximum referencelumen diameter (mm)
QCA reference diameter
8
7
6
5
4
3
2
1
1 2 3 4 5 6 7 8
r = 0.60, p< 0.0001
n= 616 stents
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FFR vs QCAWHC: Ben-Dor et al. Eurointervension 2011 7:225-33
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Angio vs CT for Stent LengthCiszewski et al. AJC 2013;111:1111-6
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Angiography can under estimate
severe CAD
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Patient with angina FC2 and anterior perfusion defect.
Severe LAD
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Severe IVUS stenosis: area 3.4 mm2
Mild angio stenosis
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65 year old man with angina
CT: Severe stenosis
Angio: Mild stenosis
RCA Area 2.51 mm2
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Angiography can also over
estimate
lesion severity.
Contribution of FFR
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Circumflex Marginal
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Ostial CX
Ostial OM
Prox OM
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FFR CX
Equalization Baseline Gradient Adenosine 140 mcg
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Clinical Decision
• No PCI now.
• Optimal medical therapy.
• Non invasive follow up.
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Angio is Most Inaccurate in LM. Olivier Muller. ESC 2011
FFR 0.89 FFR 0.68
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Mild LM on Angio
FFR 0.70
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Angio vs IVUS in LMCA.WHC: Abizaid et al JACC 1999;34:707-15
IVUS MLD (mm)
QCA MLD (mm)
r=0.364
0
1
2
3
4
5
6
7
0 1 2 3 4 5 6 7
IVUS DS
QCA DS
0
20
40
60
80
100
0 20 40 60 80 100
p=0.106
122 patients with LM disease
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1. Angio is no longer the gold standard
2. IVUS had been the best for:a. analysis of lesion severity
b. for optimizing PCI results and improve outcome.
3. FFR proven physiologically accurate and clinically useful
4. IVUS FR correlations surprising
5. New paradigm: FFR for inervention or not. IVUS for prognosis
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IVUS final Lumen Area Determines PrognosisWHC: Abizaid et al. Circ 1999; 100:256-261
300 patients (357 lesions) <70% diameter stenosis.
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Freedom from Stent Thrombosis.WHC: Roy et al. EHJ 2008;29:1851-7
P=0.013
“No IVUS” was a significant predictor of cumulative
ST at 12 months: HR 3.3, CI 1.25-10, p=0.01
IVUS
No IVUS
1296 lesions
1312 lesions
1768 patients propensity matched
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Definite/Probable ST
De
fin
ite
/Pro
ba
ble
ST
(%
)
Time in Months3361 3260 3182 3065 1791
5221 5019 4886 4713 2279
Number at risk:
IVUS Used
IVUS Not Used
HR: 0.47 [95% CI: 0.28, 0.80]
P = 0.004
0.55%
1.16%
0
1
2
0 6 12 18 24
IVUS Used
IVUS Not Used
Maehara et al. JACC 2013;62:B21-22
Myo
ca
rdia
l In
farc
tio
n (
%)
0
5
10
Time in Months3361 3209 3120 2991 1739
5221 4916 4744 4541 2179
Number at risk:
IVUS Used
IVUS Not Used
HR: 0.62 [95% CI: 0.49, 0.77]
P < 0.001
3.47%
5.59%
0 6 12 18 24
IVUS Used
IVUS Not Used
Myocardial Infarction
3361 3206 3117 2988 1739
5221 4912 4740 4537 2177
Number at risk:
IVUS Used
IVUS Not Used
MA
CE
(%
)
0
5
10
Time in Months0 6 12 18 24
HR: 0.65 [95% CI: 0.54, 0.78]
P < 0.001
4.9%
7.4%
IVUS Used
IVUS Not Used
MACE (Definite/Probable ST, Cardiac
Death, MI) ADAPT-DES TrialPCI with IVUS (3361 pts)
PCI without IVUS (5221 pts).
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1. Angio is no longer the gold standard
2. IVUS has been the best for severity analysis
3. FFR is now the gold standard for physiologically and clinically significant lesion.
4. IVUS FR correlations surprising
5. New paradigm: FFR for inervention or not. IVUS for prognosis
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FFR Guidance Proven Clinically
Superior than Angiographic Guidance.
Pijls JACC 2010;56:177Pijls JACC 2007;49:2105
Su
rviv
al fr
ee
fro
m M
AC
E
Days since randomization
DEFER 5 years FAME two years
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1. Angio is no longer the gold standard
2. IVUS has been the best for severity analysis
3. FFR proven physiologically accurate and clinically useful
4. IVUS FFR correlations surprising
5. New paradigm: FFR for inervention or not. IVUS for prognosis
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IVUS vs. FFR WHC: Ben-Dor et al. Eurointervension 2011 7:225-33
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IVUS vs. FFR WHC: Ben-Dor et al. Eurointervension 2011 7:225-33
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881 Lesions with IVUS/FFR.Han et al. EuroIntervention. 2012;8:N74.
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QCA-FFR Discordance in LMCA.SJ Park et al. JACC Interv 2012;5:1029-35
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NO MORE 4 mm2 to decide Intervention.
New IVUS MLAs since 2011.WHC: Ben-Dor et al. Eurointervension 2011 7:225-33
Per
centa
ge
Per
centa
ge
0
0.2
0.4
0.6
0.8
1
1.2
0 2 4 6IVUS MLA
Reference vessel 2.5-3mm
Per
centa
ge
0
0.2
0.4
0.6
0.8
1
1.2
0 2 4 6 8IVUS MLA
Reference vessel 3-3.5mm
sensitivity specificity
0
0.2
0.4
0.6
0.8
1
1.2
0 2 4 6 8 10 12IVUS MLA
Reference vessel >3.5mm
2.4 mm2 2.7 mm2
3.6 mm2
C=0.74 C=0.77
C=0.70
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Physiologic Relevance of Angio Stenosis
Tonino et al., JACC 2010 (submitted)
1329 lesions in the FFR-guided arm
~35%
~20%~65%
P. Tonino et al JACC 2010
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Summary
Intermediate lesions (50-80%) have better outcome with Optimal Medical Therapy than with Stents.
Value of Spot Stenting.
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1. Angio is no longer the gold standard
2. IVUS has been the best for severity analysis
3. FFR proven physiologically accurate and clinically useful
4. IVUS FFR correlations surprising
5. What happens to the patient with deferred intervention?
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Not all Patients are MACE FreePijls et al. JACC 2010;56:177
Pijls JACC 2010;56:177
Su
rviv
al
free
fro
m M
AC
E
Days since randomization
FAME 2 years
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Plaque Morphology Helps Predict Prognosis
High risk plaque morphology is associated with worse outcome:
- positive remodeling/plaque burden
- thin-cap fibroatheroma
- inflammatory markers (CRP, PET scan).
- shear stress
- etc.
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Plaque Positive Remodeling and Outcome.
WHC: YJ Hong et al. JIC 2007;19:500-5
1 year MACE
236 patients with mild (<50%) LMCA stenosis by QCA.
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Conclusions
1. In Stable CAD, non Invasive quantification of ischemia and severity of symptoms determines need for angiography.
2. Angiography (QCA) is no longer the Gold Standard to indicate revascularization, except for lesions >90%.
3. FFR is presently the optimal method to decide if intervention is needed in angiographic intermediate lesions (50-80%).
4. IVUS (OCT) contributes greatly to achieve optimal PCI and should be used in complex, high risk PCI.
5. Plaque imaging (IVUS, OCT, MSCT, MRI, NIR, PET, etc) can help predict outcome.
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The end