techniques for ischemic mitral valve disease: an …az9194.vo.msecnd.net/pdfs/120401/07.08.pdf3+ or...
TRANSCRIPT
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Stanford CV Surgery
Techniques for ischemic mitral valve disease:
An Update
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Grant/ Research Support: NHLBI RO1 HL67025 Consulting Fees/Honoraria:
•Stanford PI – PARTNER Trial, Edwards Lifesciences •Consultant, Abbott Vascular Structural Heart (MitraClip) •Consultant, Medtronic CardioVascular Division •Consultant, St. Jude Medical •Executive Committee, PARTNER U.S. Pivotal Trial , Edwards Lifesciences (non-remunerative)
Major Stock Shareholder/Equity Interest: Royalty Income: Ownership/Founder: Salary: Intellectual Property Rights: Other Financial Benefit:
Conflict of Interest Disclosure
Stanford CV Surgery
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FMR and IMR PATHOPHYSIOLOGIC MECHANISMS &
TREATMENT
Levine, RA New Eng J Med 351: 1681,
2004
Stanford CV Surgery
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Two mechanisms of leaflet malcoaptation:
Annular dilation with Carpentier type I leaflet motion (IMLC)
PPM
AML
PML
S-L
Stanford CV Surgery
Why do leaflets malcoapt in patients with IMR/FMR?
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Two mechanisms of leaflet malcoaptation:
Annular dilation with Carpentier type I leaflet motion (IMLC)
AML
PPM
PML
Most common in FMR
Early and mid systolic leak
Stanford CV Surgery
Why do leaflets malcoapt in patients with IMR/FMR?
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Two mechanisms of leaflet malcoaptation:
Papillary muscle displacement with apically restricted systolic leaflet motion (type IIIb)
(apical tethering, tenting) PPM
AML
PML
Stanford CV Surgery
Why do leaflets malcoapt in patients with IMR/FMR?
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Two mechanisms of leaflet malcoaptation:
Papillary muscle displacement with apically restricted systolic leaflet motion (type IIIb)
(apical tethering, tenting)
PML AML
PPM
Why do leaflets malcoapt in patients with IMR/FMR?
Most common in IMR
Early systolic leak Stanford CV Surgery
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Both mechanisms (type I and type IIIb) of leaflet malcoaptation can coexist in the same patient
Stanford CV Surgery
Why do leaflets malcoapt in patients with IMR/FMR?
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Stanford CV Surgery
Advances in Echocardiography
Are Color Doppler and rt 3-D TEE just for amateurs?
But please don’t take away my X-plane and color M-mode
Stanford CV Surgery
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Stanford CV Surgery
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Stanford CV Surgery
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Mechanisms of MR- Color M-mode echo Early systolic (FMR)
Stanford CV Surgery
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Mechanisms of MR- Color M-mode echo Holosystolic (IMR)
Stanford CV Surgery
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Mechanisms of MR- Color M-mode echo Late systolic (prolapse)
Stanford CV Surgery
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IMR/FMR - apical tenting (type IIIb)
Stanford CV Surgery
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IMR/FMR - apical tenting (type IIIb)
Stanford CV Surgery
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IMR/FMR - type I s/p Bolling Procedure
Stanford CV Surgery
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IMR/FMR - type I s/p Bolling Procedure
Stanford CV Surgery
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Human Mitral “annulus”
From FC Wells and LM Shapiro, 1996
Stanford CV Surgery
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Hueb AC et al., J Thorac Cardiovasc Surg 2002; 124: 216-24 Stanford CV Surgery
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Standard Surgical Approach
Frank Langer, Homburg, Germany Stanford CV Surgery
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Mihaljevic, T. et al. J Am Coll Cardiol 2007;49:2191-2201
Surgical treatment of IMR
with ring annuloplasty ± CABG
Stanford CV Surgery
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Mihaljevic, T. et al. J Am Coll Cardiol 2007;49:2191-2201
3+ or 4+ residual/recurrent MR
Stanford CV Surgery
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Mihaljevic, T. et al. J Am Coll Cardiol 2007;49:2191-2201
Survival After CABG ± Concomitant MV Annuloplasty
Stanford CV Surgery
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Stanford CV Surgery
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Stanford CV Surgery
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Recurrent/residual MR ≥2+ after
ring annuloplasty for IMR
Magne et al. Cardiology 2009;112:244–259 Stanford CV Surgery
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Large variety of annuloplasty rings available
a.) Various shapes (flat, saddle, dog bone)
b.) Various configurations (partial, complete)
c.) Various material properties (flexible, semi-flexible, rigid)
Stanford CV Surgery
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Stanford CV Surgery
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Stanford CV Surgery
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IMR-FMR disease-specific ring designs Disproportionate septal-lateral dimension reduction
Bothe W, Swanson J, et al., JTCVS 139:1114-1122, 2010
Stanford CV Surgery
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IMR-FMR disease-specific ring designs Disproportionate S-L reduction vs. CE Physio
Bothe W, Swanson J, et al., JTCVS 139:1114-1122, 2010 Stanford CV Surgery
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IMR-FMR disease-specific ring designs Disproportionate S-L reduction vs. CE Physio
Bothe W, Swanson J, et al., JTCVS 139:1114-1122, 2010 Stanford CV Surgery
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•Coapsys®, SLAC, Hvass PM sling or
PM-suturing, Kron UVA stitch, Homburg
“STRING”, second-order chordal cutting,
CorCap CSD, Fontan stitch, epicardial LV
balloon patch, LV wall polymer injection
Adjunctive surgical subvalvular approaches
Stanford CV Surgery
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CorCap CSD
Acorn Medical
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Stanford CV Surgery JTCVS 2011; 142:569-574
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Stanford CV Surgery JTCVS 2011; 142:569-574
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Stanford CV Surgery JTCVS 2011; 142:569-574
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Ventricular Level Approaches
Hvass Papillary Muscle Sling
U Hvass, et al. Ann Thorac Surg 2003;75:809 –11
Stanford CV Surgery
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U Hvass, et al. JTCVS 2010;139:418-423
Hvass Papillary Muscle Sling
Stanford CV Surgery
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CIRCULATION 2010; 122 [suppl 1] : S29–S36
Ventricular Level Approaches
Papillary Muscle Imbrication (Univ. of Osaka)
Stanford CV Surgery
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Stanford CV Surgery
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Stanford CV Surgery
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Stanford CV Surgery
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MGH thrust #2- 2° order CT cutting to AMVL
Messas, Guerrero, Handschumacher, Conrad, Chow, Sullivan,
Yoganahan, Levine (CIRCULATION 2001; 104:1958-1963) Stanford CV Surgery
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J Thorac Cardiovasc Surg 2007;133:1483-92
MR grade Ring + CABG Ring + CT cutting +CABG
Stanford CV Surgery
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J Thorac Cardiovasc Surg 2007;133:1483-92
Event-free survival
Defined as freedom from death, recurrent >
moderate MR, reop, TE, hemolysis, major
ACH , or PVE
Stanford CV Surgery
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IMR/MR
Is the MR the real culprit ?
Stanford CV Surgery
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Benefits of MR Reduction in Ischemic MR Patients:
Lessons from RESTOR_MV Trial Open CABG + ring annuloplasty
vs. OpCAB + Coapsys
Eugene A. Grossi, MD
for the RESTOR-MV Study Group
NYU School of Medicine &
NY Harbor Veterans Healthcare System Stanford CV Surgery
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RESTOR_MV Trial: FDA Prospective Study
Minimally invasive (no CPB) Ventricular Shape Change Device
Stanford CV Surgery
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RESTOR_MV: MR Evaluation
CABG+MVRepair vs. CABG+Coapsys
Both effect of time and treatment p=0.0001 Stanford CV Surgery
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Intent-To-Treat: All Patient Survival
Stanford CV Surgery
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Other Approaches
de Varennes CIRC 2009 Langer CIRC 2009 Borger JTCVS 2007
LV systolic function ? X-clamp time ?
Stanford CV Surgery
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STRING-technique Kron-technique • via atriotomy • final tension in arrested heart
• via horizontal aortotomy • final tension in loaded beating heart under TEE guidance
Stanford CV Surgery
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IMR (n=60) with severe leaflet tethering (tenting height > 10 mm)
historical matched control group
(n=30)
RING RING+STRING
study group (n=30)
Langer CIRC 2009
Stanford CV Surgery
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> 10 mm
Stanford CV Surgery
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> 40 mm
Stanford CV Surgery
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0 12 24 36 48 60 72 840
20
40
60
80
100RING+STRING
RING
3030
2626
2024
923
322
subjects at risk 020
014
0 0
p=0.13
Follow-up (months)
Su
rviv
al
(%)
F. Langer CIRC 2009 Stanford CV Surgery
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0 12 24 36 48 60 72 840
25
50
75
100RING+STRING
RING
subjects at risk3030
2520
1818
918
317
016
010
0 0
p=0.01
*
Follow-up (months)
Fre
ed
om
fro
m M
R >
II (
%)
F. Langer CIRC 2009 Stanford CV Surgery
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Stanford CV Surgery
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Stanford CV Surgery AATS 2012
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Stanford CV Surgery EJCTS 2011;39:295-303
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Goal for CHF and FMR / IMR
Accomplish something below the annulus in
conjunction with disease-specific undersized
annuloplasty ring designs and/or other
adjunctive procedures to restore and maintain
more elliptical LV shape and minimize MR
Which should translate into better reverse
LV remodeling
Stanford CV Surgery
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Stanford CV Surgery
Thank you