Whats New In the Cath-lab 2015 › pdf › 2015 North › 1400 Room 2 Thurs Kay... ·...
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Whats New In the Cath-lab 2015
I Patrick Kay PhD FESC EAPCI BA General and Interventional Cardiologist
[email protected] or see healthpoint
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The Plan
• DiagnosticsFFR – Fractional Flow ReserveOCT – Optical Coherence Tomography
• TreatmentNew Stents – BRS/DESMI – 2015Drugs – Ticagrelor/Clopidogrel
- StatinsTAVR (TAVI)
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Risk Assessment of patient with chest pain
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Percentage of people estimated to have coronary artery disease according to typicality of symptoms, age, sex and risk factors
Non-anginal chest pain Atypical angina Typical angina
Men Women Men Women Men Women
Age (years)
Lo Hi Hi Hi Lo Hi Lo Hi Lo Hi Lo
35 3 35 1 19 8 59 2 39 30 88 10 78
45 9 47 2 22 21 70 5 43 51 92 20 79
55 23 59 4 25 45 79 10 47 80 95 38 82
65 49 69 9 29 71 86 20 51 93 97 56 84
Hi = High risk = diabetes, smoking and hyperlipidaemia (total cholesterol > 6.47 mmol/litre).Lo = Low risk = none of these three.
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Angiography• Simply the best anatomical test for defining a stenosis in a patient
with symptoms of ischemia. Option to proceed to PCI at time.• 90% nationally is done radially – safer, better mobility. Risk for
elective cases:Death – 1/10000CVA – 1/5000TIA – 1/1000Radial access route repair/symptomatic occlusion of RA - < 1/10000
• Radiation dose reducing• Most cases are performed post ACS
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The Plan• Diagnostics
FFR – Fractional Flow ReserveOCT
• TreatmentNew Stents – BRS/DESMI – 2015Drugs – Ticagrelor/Clopidogrel
- StatinsTAVR (TAVI)
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Fractional Flow Reserve–Guided PCI
versus
Medical Therapy in Stable Coronary Disease
FAME 2
Clinicaltrials.gov NCT01132495
Bernard De Bruyne, Nico H.J. Pijls, William F Fearon, Peter Juni,
Emanuele Barbato, Pim Tonino,
for the FAME 2 study group
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FFR wire and console
Studies have shown that a cut-off of 0.80is predictive of a significant stenosis
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Distribution of angiographic severity vs functional severity of coronary artery stenosis.
Mario Gössl et al. Circ Cardiovasc Interv. 2012;5:597-604
Copyright © American Heart Association, Inc. All rights reserved.
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FAME 2 : FFR-Guided PCI versus Medical Therapy in Stable CAD
Primary Outcomes
0
5
10
15
20
25
30
Cu
mu
lati
ve
in
cid
en
ce
(%
)
166 156 145 133 117 106 93 74 64 52 41 25 13Registry447 414 388 351 308 277 243 212 175 155 117 92 53PCI+MT441 414 370 322 283 253 220 192 162 127 100 70 37MT
No. at risk
0 1 2 3 4 5 6 7 8 9 10 11 12Months after randomization
MT vs. Registry: HR 4.32 (1.75-10.7); p<0.001
PCI+MT vs. Registry: HR 1.29 (0.49-3.39); p=0.61
PCI+MT vs. MT: HR 0.32 (0.19-0.53); p<0.001
MT
PCI+MT
Registry
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FAME 2 : FFR-Guided PCI versus Medical Therapy in Stable CAD
Urgent Revascularization
0
5
10
15
20
25
30
Cu
mu
lati
ve
in
cid
en
ce
(%
)
166 156 145 133 117 106 94 75 65 53 42 26 13Registry447 421 395 356 315 285 248 217 180 160 119 93 53PCI+MT441 414 371 325 286 256 223 195 164 129 101 71 38MT
No. at risk
0 1 2 3 4 5 6 7 8 9 10 11 12Months after randomization
MT vs. Registry: HR 4.65 (1.72-12.62); p=0.009
PCI+MT vs. Registry: HR 0.63 (0.19-2.03); p=0.43
PCI+MT vs. MT: HR 0.13 (0.06-0.30); p<0.001
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FFR
• Patient has moderate narrowing angiographically
• Operator needs more information on whether to treat with a stent or leave to medical management.
• Medical management in a patient with a non-functionally significant stenosis has an excellent outcome
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FFR
100% LAD
75% OM
75% RCA
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FFR
0.88 FFR
0.91 FFR
100% LAD
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LAD Post
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Whats New in Stent Technology?
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Whats New in Stent Technology?
• >90% stents implanted are drug eluting (DES)• Most elute a drug called Everolimus over approx. 90 days• The newest technology is called a bio-erodable scaffold (BRS). These
currently account for < 5% of stent implantations. Unique in that they literally disappear over 2 years.
• These “scaffolds” are difficult to see but thanks to a new imaging modality called OCT (optical coherence tomography) we are beginning to understand them better
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The Plan• Diagnostics
FFR – Fractional Flow ReserveOCT
• TreatmentNew Stents – BRS/DESMI – 2015Drugs – Ticagrelor/Clopidogrel
- StatinsTAVR (TAVI)
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OCT and BRSOCT Catheter
Stent Struts
Lumen
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Case Study 1: A Cautionary Tale
• 78 year old man with angina and ST depression in stage 2 of the Bruce Protocol stress test
• BRS scaffold deployed at 16 atms • Post dilated with 3.25 mm balloon at
22 atms
Pre BVS
Bioresorbable Polymeric Vascular Scaffolds (BRS)
Circ Intervention 2011
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Post BVS and post dilated with 3.25NC at 22 atms
2
1
2
1
Proximally: Struts not apposed to vessel wall
Distally: Struts are well apposed to vessel wall
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CARDIAC NURSE, TECHNOLOGISTS & MRT CORONARY PHYSIOLOGY & IMAGING SYMPOSIUM, 2015
1
1
Post-dilatation with 3.5mm compliant balloon at 16 atms gives an expected diameter of 4mm
1 Month follow-up Angiogram shows good result
But worse on OCT
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Scanning Electron Microscope (SEM) image of a deliberately damaged BVS on the bench shows overlap and change
strut orientation
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Disappearing Stents
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Balloon Angioplasty
BMS Metallic DESBioresorbable
Scaffold
Acute occlusion − + + +
Acute ST/scaffold thrombosis
NA − +/− +
Subacute ST/scaffold thrombosis
NA − − +
Acute recoil − + + +
Constrictive remodeling
− + + +
Neointimal hyperplasia
− − + +
Expansive remodeling
+ − − +
Late luminal enlargement
+ − − +
Late ST/scaffold thrombosis
NA − − +
Advantages of a stent
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The Plan• Diagnostics
FFR – Fractional Flow ReserveOCT
• TreatmentNew Stents – BRS/DESMI – 2015Drugs – Ticagrelor/Clopidogrel
- StatinsTAVR (TAVI)
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Myocardial Infarction 2015
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NSH
MMHMMH
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Time delay to treatment in MI
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Relationship between time to treatment and 1-year mortality
Giuseppe De Luca et al. Circulation. 2004;109:1223-1225
Copyright © American Heart Association, Inc. All rights reserved.
30% increase in 1yr mortality
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MI 2015
• Primary PCI• Facilitated PCI• Lyse and ship
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evidence• System delay in PPCI Sept-Dec 2014
50 7681NZ
47 7088Northern
Symptom onset to ambulance dispatch
(Patient delay)
Ambulance dispatch to
door(Prehospital
system delay)
D2B
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CASE• 48 yr male – previous LAD stent in 2008. Non
compliant.• Onset pain 1145AM• Arrived Medical Centre 1300 – ECG taken and
transmitted ED. Retrieval arranged – helicopter arrived 1345.
• Helipad arrival at 1415. Cathlab arrival 1425.• First Device crossed 1440.
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Post procedure
Returned to CCU with minor CP; ECG improved but not isoelectricDischarged 72 hours laterCompliant and symptom-free at 6 –week follow-up
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MI - Therapeutics
Pre Cathlab:Aspirin 300mg sol.Clopidogrel 300-600mg or Ticagrelor 180mg
After PCI:Aspirin lifelongTicagrelor 90mg BD for 1 yearStatin aiming for LDL <1.6mmol/l
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Stable Angina and a Stent
Aspirin lifelongClopidogrel 6 monthsStatin aiming for LDL <1.6mmol/l
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PLATO: Primary endpoint: CV death, MI or stroke
0 1 2 3 4 5 6 7 8 9 10
11 12
12
11
10
9
8
7
6
5
4
3
2
1
0
Months
HR: 0.85 (95% CI = 0.74–0.97), p=0.02
No. at risk
Clopidogrel
Ticagrelor
4,229
4,201
3,892
3,887
3,823
3,834
3,730 3,022
3,011
2,333
2,297
1,868
1,8913,732
11.0
9.3
Clopidogrel
TicagrelorK
-M e
sti
ma
ted
ra
te (
% p
er
ye
ar)
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Therapeutic considerations• Based on 1,000 patients admitted to hospital for ACS, using
ticagrelor instead of clopidogrel for 12 months resulted in
– 14 fewer deaths
– 11 fewer myocardial infarctions
– 6–8 fewer cases with stent thrombosis
– No increase in bleedings requiring transfusion
– 9 patients may switch to thienopyridine treatment because of reversible symptoms of dyspnoea
• Treating 54 patients with ticagrelor instead of with clopidogrel for one year will prevent one event of CV death, MI or stroke
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The Plan• Diagnostics
FFR – Fractional Flow ReserveOCT
• TreatmentNew Stents – BRS/DESMI – 2015Drugs – Ticagrelor/Clopidogrel
- StatinsTAVR (TAVI)
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Aortic Stenosis – TAVRTranscatheter Aortic Valve Replacement
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23
4
12
30
28
3 0
5
10
15
20
25
30
35
5 year survival of breast cancer, lung cancer, prostate cancer, ovarian cancer and severe inoperable aortic stenosis
53
Sobering Perspective5-Year Survival
8
Su
rviv
al, %
BreastCancer
LungCancer
ColorectalCancer
ProstateCancer
OvarianCancer
SevereInoperable
AS**Using constant hazard ratio. Data on file, Edwards Lifesciences LLC. Analysis courtesy of Murat Tuczu, MD, Cleveland Clinic
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• An aortic valve replacement as an alternative to traditional thoracotomy.
• Access via Femoral, direct Aortic and Apical routes
• Less invasive than traditional thoracotomy for patients considered too high risk for traditional surgery.
TAVR-Transcatheter Aortic Valve Replacement
54
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Two (of many) TAVR Options
Edwards Sapien Valve• Stainless Steel Frame• More Aortic Regurg, less
AV block/PPM• Better for severe bulky
calcification.
Medtronic CoreValve• Nitinol Frame-self
expanding• Less Aortic Regurg, More
heart block/PPM
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• TCT 2014 | September 13, 2014
Five-Year Outcomes of Transcatheter Aortic Valve Replacement (TAVR) in “Inoperable”Patients With Severe Aortic Stenosis: ThePARTNER Trial
Samir R. Kapadia, MD On behalf of The PARTNER Trial Investigators
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N = 179
N = 358Inoperable
StandardTherapy
ASSESSMENT:
Transfemoral Access
Not In Study
TF TAVR
Primary Endpoint: All-Cause Mortality Over Length of Trial (Superiority)
Co-Primary Endpoint: Composite of All-Cause Mortalityand Repeat Hospitalization (Superiority)
1:1 Randomization
V
S
Yes No
N = 179
TF TAVR AVR
Primary Endpoint: All-Cause Mortality at 1 yr(Non-inferiority)
TA TAVR AVR
V
S
V
S
N = 248 N = 104 N = 103N = 244
PARTNER Study Design
Symptomatic Severe Aortic Stenosis
ASSESSMENT: High-Risk AVR Candidate3,105 Total Patients Screened
Total = 1,057 patients
2 Parallel Trials: Individually Powered
N = 699 High Risk
ASSESSMENT:
Transfemoral Access
Transapical (TA)Transfemoral (TF)
1:1 Randomization1:1 Randomization
Yes No
Cohort A Cohort B
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TAVR 348 298 261 239 222 187 149
AVR 351 252 236 223 202 174 142
Cohort A: All-Cause Mortality
No. at Risk
HR [95% CI] =
0.93 [0.74, 1.15]
p (log rank) = 0.483
26.8%
24.3%
34.6%
33.7%
44.8%
44.2%
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N = 179
N = 358Inoperable
StandardTherapy
ASSESSMENT:
Transfemoral Access
Not In Study
TF TAVR
Primary Endpoint: All-Cause Mortality Over Length of Trial (Superiority)
Co-Primary Endpoint: Composite of All-Cause Mortalityand Repeat Hospitalization (Superiority)
1:1 Randomization
V
S
Yes No
N = 179
TF TAVR AVR
Primary Endpoint: All-Cause Mortality at 1 yr(Non-inferiority)
TA TAVR AVR
V
S
V
S
N = 248 N = 104 N = 103N = 244
PARTNER Study Design
Symptomatic Severe Aortic Stenosis
ASSESSMENT: High-Risk AVR Candidate3,105 Total Patients Screened
Total = 1,057 patients
2 Parallel Trials: Individually Powered
N = 699 High Risk
ASSESSMENT:
Transfemoral Access
Transapical (TA)Transfemoral (TF)
1:1 Randomization1:1 Randomization
Yes No
Cohort A Cohort B
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COHORT B: TAVR Mortality Stratified by Age
Mo
rtali
ty (
%)
Months
96.0%
73.5%
91.8%
70.4%
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CoreValve US Pivotal
Trials
Extreme Risk High Risk
CoreValve
Iliofemoral
Iliofemoral Access >
18 Fr Sheath
NoYes
Randomization 1:1
CoreValve
Non-
Iliofemoral
Versus
SAVRCoreValve
N=487 N=147
61
TCT 2013
LBCTExtreme Risk Study | Iliofemoral Pivotal
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19.1%
4.5%
Surgical
14.2%
P = 0.04 for superiority
3.3%
Transcatheter
Primary Endpoint: 1 Year All-cause Mortality ACC 2014
62
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The NZ experience
Limited access due to MOH restrictions:• Indication – must be accepted as a surgical candidate at a Heart team meeting• Compassionate use – ‘inoperable but highly symptomatic’ not perceived as the
optimal candidate in an environment of limited resources
BUT…the technology is likely to succeed and become the preferred option for most of us sitting in this room
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BYE
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