Bioprosthetic Valve Fracture To Optimize Results Following ... · Severe AI related to detached...
Transcript of Bioprosthetic Valve Fracture To Optimize Results Following ... · Severe AI related to detached...
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Bioprosthetic Valve Fracture To Optimize Results Following VIV TAVR
Keith B. Allen, MDClinical Associate Professor of Surgery, UMKC
Co Director of Structural HeartSt. Luke’s Mid America Heart Institute
Kansas City, Missouri
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DisclosuresEdwards (Research, Proctor/Speaker’s Bureau)
Medtronic (Research, Speaker’s Bureau)Abbott (Research, Consulting)
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The smaller the surgical valve, the higher the mortality!
1-Year Mortality After Valve-in Valve TAVRValve-in-Valve International Data (VIVID) Registry Dvir, et al. JAMA 2014
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Impact of Residual Gradient on 1-Year Mortality
Webb J, et al. JACC 2017; 69:2253-62
PARTNER ViV Study
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Explanted 23 S3 VIV in a 21 Magna Ease after only two years
Durability of VIV TAVR UNKNOWN!
Transcatheter valves placed VIV are by definition constrained and not optimally expanded and the effect on durability is unknown
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‘Tricks’ to Optimize Results with VIV TAVR
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Impact of Implantation Depth on Minimizing Residual Gradients
During VIV TAVRSimonato, et al. EuroIntervention 2016;12:909-917
Implant Depth
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Optimal Implantation Depth: CoreValveSimonato, et al. EuroIntervention 2016;12:909-917
1-2 mm deep is the sweet spot
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Optimal Implantation Depth: Sapien XT/S3Simonato, et al. EuroIntervention 2016;12:909-917
Sweet Spot is as Shallow as Comfort Allows
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Rated for Mature Audiences Only
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➢ Bench testing demonstrated BVF, when performed with a non-compliant balloon and high-pressure inflation, can fracture the surgical valve and allow further expansion of the THV
➢In early clinical experience, BVF resultedin reduced residual gradients and increased valve EOA following VIV TAVR
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US Surgical Tissue Valves that can beFractured
Allen KB, Chhatriwalla A, et al. Ann Thorac Surg 2017;104:1501–8
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Set up for BVF
3 41
2
Hand Inflation
Saxon JT, Allen KB, Cohen DJ, Chhatriwalla A. Bioprosthetic Valve Fracture (BVF): Bench to Bedside. Interventional Card Rev 2018;13(1):20–6.
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Confirmation of FractureAny of the following
– The indeflator pressure drops (in the absence of balloon rupture)
– An audible snap
– The balloon waist releases – may be subtle
– Visual confirmation of the fractured ring may be difficult to detect in real time
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BVF Balloon Position ImportantSevere AI related to detached leaflet from CoreValve frame
can occur with incorrect balloon position
Constrained Area
Constrained Area20 mm
22 mm 23 mm
BVF balloon should not be more then 2 mm larger then CV constrained area
Allen KB, Chhatriwalla A, et al. Ann Thorac Surg 2017;104:1501–8
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Some Valves Can Be Modified
Stretched
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Some Valves Can Be Modified
Bent
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PORTICO VALVE IN A REMODELED TRIFECTA GT
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Presented at HVS Meeting 2018
Remodeled Trifecta following VIV with Corevalve
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Some Valves Cannot Be Fractured or Modified
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Richard Lee and Michael LimSaint Louis University
St. Louis, MO
Brian W. Hummel Lee Memorial Hospital
Fort Myers, FL
Mark J. Russo, Bruce J. Haik Newark Beth Israel Medical Center
Newark, NJ
Pranav Loyalka, Tom C. NguyenMemorial Herman – Texas Medical Center
Houston, TX
Keith B. Allen and Adnan ChhatriwallaSt. Luke’s Mid America Heart Institute
Kansas City, MO
Josh RovinMorton Plant Hospital
Tampa Bay, FL
Juhana KarhaAustin Heart
Austin, TX
Dennis J. Gory Peace Health Medical Group
Eugene, Oregon
Anthony BavryThomas BeaverAshkan Karimi
University of Florida Gainsville, FL
Brian WhisenantIntermountain Medical Group
Sandy, UT
Ed GarrettMemphis Baptist
Memphis, TN
Vinod ThouraniWashington Med Star Hospital
Washington DC
John Webb, Danny DvirUniversity of British Columbia
Vancouver, British Columbia, Canada
DW ParkAsian Medical Center
Seoul, South Korea
Pradeep YadavPenn State Hershey Medical Center
Hershey, PA
BVF performed in 75 patients at 21 centersMarch 2016 to April 2018
Alan Yeung Stanford University
Palo Alto, CA
Adam Greenbaum MD and William O’Neill MDHenry Ford Detroit Medical Center
Detroit, MI
Alex Pak, Zafir Hawa, James Mitchell North Kansas City Hospital
North Kansas City, MO:
Jason Ricci McLaren Northern MI Hospital
Petoskey, MI
Deutsches HerzzentrumBerlin, GermanyAxel Unbehaun
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Largest BVF Series To Date➢ Surgical valves were categorized by their true internal diameter (ID) as
- Small (< 18.5 mm)- Intermediate (>18.5 to < 21 mm)- Large (> 21 mm)
➢ THV’s were categorized as either “right sized” or “up sized” based on whether the heart team selected a THV size equal to, or larger than, that recommended by the VIV App
➢ Non-compliant balloons used to perform fracture were categorized based on their size in comparison to true ID of the surgical valve being fractured
- Small if they were < 3 mm larger and large if they were >3 mm larger
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METHODSInvasive hemodynamic measurements and calculation of the valve EOA were performed at
In patients that had BVF first only baseline and final gradients were obtained
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Timing of BVF
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BVF Complications
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BVF Complications
◼ No coronary occlusions
◼ No annular ruptures (clinical or subclinical)
◼ No new pacemakers
◼ 95% (71/75) no AI
◼ 2 minor strokes → no residual
◼ 1 chordal tear → moderate-severe MR treated with MitraClip
◼ 2 severe AI from disruption of TAVR valve → treated successfully
with second valve-in-valve
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Residual Gradient BVF after VIV TAVR (n=66)
0
20
40
60
80
40.6 ± 16 p<0.001
8.1 ± 4.8
Baseline After VIV TAVR After BVF
19.0 ± 8.8
p<0.001
Mea
n R
esid
ua
l G
rad
ien
t (m
m H
g)
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Final Mean EOABVF after VIV TAVR (n=66)
0
0.5
1
1.5
2
2.5
0.8 ± 0.3
p<0.001
2.1 ± 0.8
Baseline After VIV TAVR After BVF
1.4 ± 0.8
p<0.001
Mea
n V
alv
e E
OA
(cm
2)
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Univariate Predictors of Best HemodynamicsUnivariate Associations
Variable Beta Weight (95% CI) p-value
THV Type 0.15 (-2.86, 3.16) 0.92
THV Right vs Up Sized -0.77 (-3.75, 2.21) 0.61
Surgical Valve True ID 3.23 (-3.40, 10.86) 0.40
Baseline Mean Gradient 0.06 (-0.04, 0.15) 0.24
Mode of Valve Failure -2.35 (-8.28, 3.58) 0.43
Large BVF Balloon Size 4.44 (0.57, 8.32) 0.03
Timing of BVF (BVF after VIV TAVR) 8.76 (4.74, 12.79) <0.001
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Multivariable Predictors of Best HemodynamicsMultivariable Associations
Variable Beta Weight (95% CI) p-value
THV Type 0.53 (-2.78, 3.84) 0.75
THV Right vs Up Sized 0.64 (-3.07, 4.35) 0.73
Surgical Valve True ID 3.73 (-3.62, 11.08) 0.31
Baseline Mean Gradient 0.10 (-.003, .203) 0.052
Mode of Valve Failure -0.58 (-6.44, 5.28) 0.84
Large BVF Balloon Size 4.94 (1.09, 8.80) 0.013
Timing of BVF (BVF after VIV TAVR) 8.91 (4.64, 13.18) <0.0001
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➢ Heavily calcified roots
➢ Intra rather then supra-annularly positioned surgical valves
19 mm Sorin Mitroflow
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➢ Heavily calcified roots
➢ Intra rather then supra-annularly positioned surgicalvalves
➢ Chimney roots with effaced or absent sinus that don’t have room for valve expansion
➢ Coronary occlusion
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CONCLUSIONS
➢BVF can be performed safelyand results in reducedresidual gradients andincreased valve area
➢ Lots still to learn
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Univariate Predictors of Best Hemodynamics
To Be Continued
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Multivariable Predictors of Best HemodynamicsMultivariable Associations
Variable Beta Weight (95% CI) p-value
THV Type 0.53 (-2.78, 3.84) 0.75
THV Right vs Up Sized 0.64 (-3.07, 4.35) 0.73
Surgical Valve True ID 3.73 (-3.62, 11.08) 0.31
Baseline Mean Gradient 0.10 (-.003, .203) 0.052
Mode of Valve Failure -0.58 (-6.44, 5.28) 0.84
Large BVF Balloon Size 4.94 (1.09, 8.80) 0.013
To Be Continued