TAVI Implantation - summitmd.comsummitmd.com/pdf/pdf/2496_EberhardGrube00000.pdf · TAVI...
Transcript of TAVI Implantation - summitmd.comsummitmd.com/pdf/pdf/2496_EberhardGrube00000.pdf · TAVI...
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TAVI – Summit 2012Seoul, September 9, 2012
TAVI Implantation:Rapid Pacing, Pre‐ and Post Dilatation
Eberhard Grube, MD, FACC, FSCAI di i i h li ik d liki ik i i i lMedizinische Klinik und Polikinik II, University Hospital Bonn, Germany
Hospital Alemão Oswaldo Cruz, São Paulo, Brazil
Stanford University School of Medicine Palo Alto CAStanford University, School of Medicine, Palo Alto, CA
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Potential conflicts of interest
Speaker’s name: Eberhard GRUBE, MD
h h f ll l fl fX I have the following potential conflicts of interest to report:
Research contractsX Consulting (BSC, J&J Cordis, Abbott, Biosensors, MedtronicSymetis, Direct Flow, InSeal, Valtech, Mitralign, Claret) Employment in industry Employment in industry Stockholder of a healthcare company Owner of a healthcare companyX Other(s): Proctor for CoreValve (Medtronic).
I do not have any potential conflict of interest I do not have any potential conflict of interest
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TAVI: Rapid Pacing, Predilatation…
“Make everything as simple as possible, but not simpler"but not simpler
Albert Einstein
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TAVI: Rapid Pacing, Predilatation…In TAVI try to be as simple ( ith regards to proced ral steps)‐ as simple (with regards to procedural steps),
‐ as quick (with regards to procedure time) and ‐ as least traumatic (with regards to material)‐ as least traumatic (with regards to material)to the heart as possible in order to protect the chronically ill myocardium and to reduce proceduralchronically ill myocardium and to reduce procedural complications.Therefore minimize the use ofTherefore minimize the use of‐Wires ‐ BalloonsBalloons‐ Pacemakers‐ Drugs andDrugs and‐ Contrast
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TAVI: Rapid Pacing, Predilatation…
Rapid Pacing (180‐200/sec):…to initiate “Cardiac Stand‐Still” with temporary suppression of the circulation to “stabilize” the aortic ring (less motion) for safer and more precise positioning and deployment of the THV.precise positioning and deployment of the THV.
Pacing (80/sec):…to avoid arrythmias( PVC’s) in patients with slow heart rates during deployment without compromising circulation and lowering the BP.
In Balloon expandable Valves the former is a must….In Core Valve the former is a matter of personal preference while the latter is advisable…
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BAV of the aortic valve – The Beginning
Courtesy of A. Cribier
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BAV of the aortic valve – The Beginning
Courtesy of A. Cribier
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Acute follow‐up (<24 hrs) in 674 patients of the NHLBI BAV registryof the NHLBI BAV registry
NHLBI BAV registry, Circulation 1991
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Annular rupture with tear of anterior mitral curtainof anterior mitral curtain
Masson et al., JACC Int 2009
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BAV of the aortic valve –Sustained success ?Sustained success…?
Berland, Cribier et al., Circulation 1989
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BAV of the aortic valve –An old story continues ?An old story continues…?
60%
50%
Berland, Cribier et al., Circulation 1989 Leon et al., NEJM 2010
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Calcific Aortic Stenosis
DeformedfEccentricCalcifiedN d lNodularRigid
HOSTILEHOSTILETARGET
• difficult to displace• prone to fragmentation
d b li iand embolization
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Disadvantages of BAV
• Rapid pacing
– Hemodynamic deterioration
• Balloon/Annular rupture
• Aortic regurgitation
• Cerebral Hypoxemia
• Conduction disturbances
• Embolization into
– Cerebral circulation (stroke, silent cerebral embolism)
– Coronary arteries (cardiogenic shock)
• Radiation exposure
• Procedure time and Contrast
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Despite disadvantages of BAV it was believed thatDespite disadvantages of BAV it was believed that Balloon Predilatation was necessary to create
“room” for the easy passage and complete delivery of the THV
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Balloon valvuloplasty i h il l ifi d i lin heavily calcified aortic valve
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Potential limitations of “direct” TAVI
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Frame underexpansion despite Predilation
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Frame underexpansion despite Predilation
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Frame underexpansion despite Predilation
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Frame underexpansion despite Predilation
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Frame underexpansion despite Predilation
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TAVI without BAV favors patients…
•At high risk for ischemic strokeAt high risk for ischemic stroke
– Calcified aortic cusps
Wi h l di• With low cardiac output
– Severely impaired LV functionSeverely impaired LV function
– No/low contractile reserve
– Highly dilated LV
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TAVI without PredilationSymptomatic, aortic valve stenosis qualifying for TAVI
Medtronic CoreValve prosthesis 26 and 29mmTransfemoralTransfemoral
International, multi-center
TAVI without Predilation
TAVI18F CoreValve S&E study*
versus
N 60 N 126
Postprocedural 30 d 12 moFollow-Up
N=60 N=126
Postprocedural 30 d 12 mo Follow-Up
Primary Endpoint: Safety at 30 days
Secondary Endpoints: Procedural Success,valve gradient, paravalvular regurgitation,symmetry.
PI: Eberhard Grube MD
*GrubeE et al. J Am Coll Cardiol. 2011;
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X‐ray of BAV in autopsied heart( t lit i C ++ d l )(note splits in Ca++ nodules)
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Procedural Results
Study Group Control Group
60 126n=60 n=126
Technical Success Rate 96.7% (58) 81.7% (103)
Valve embolization 0 0
Conversion to surgery 1.7% (1) 5.6% (7)
Postdilation 16.7% (10) n.a.
Grube et al., JACC INT 2011
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Clinical Outcome at 30days
Study Group Control Group
n 60 n=126n=60 n 126
All‐cause Mortality 6.7% (4) 14.3% (18)
Myocardial infarction 0 5.6% (7)
Stroke/TIA 5.0% (3) 11.9% (15)( )
Need for pacemaker implantation 11.7% (7) 27.8% (35)
Vascular Access Complication 10 0% (6) 9 5% (12)Vascular Access Complication 10.0% (6) 9.5% (12)
Grube et al., JACC INT 2011
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“Direct” TAVI without balloon predilationwithout balloon predilation
Effective orifice area
Mean pressure gradients
Grube et al., JACC INT 2011
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Direct TAVI in “real life”f
Sinning/Grube, unpublished data
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Multicenter randomized clinical trial evaluating ballon valvuloplasty before valve implantationballon valvuloplasty before valve implantation
SIMPLFy TAVI Study