Which System Is better?: Watchman or Cardiac Plug or ...summitmd.com/pdf/pdf/7_4_Sievert.pdf ·...
Transcript of Which System Is better?: Watchman or Cardiac Plug or ...summitmd.com/pdf/pdf/7_4_Sievert.pdf ·...
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ANGIOPLASTY SUMMIT-TCTAP 2012SSeoul, Korea, April 24-27, 2012
Which System Is better?: yWatchman or Cardiac Plug or
Something Else?H t Si t A k th i B th I b l S h l
Something Else?Horst Sievert, Annkathrin Brauth, Isabel Schulmeyer,
Patrick Boehm, Jonas Kuropka, Ilona Hofmann, Undine PittlUndine Pittl
CardioVascular Center Frankfurt, Frankfurt GermanyFrankfurt, Germany
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LAA ClosureLAA ClosureEpicardialEpicardial EndocardialEndocardial
• Watchman• SentreHeart• Cardiac Plug• Coherex
• AEGIS• AtriCure
• Sideris Patch• Occlutech
• Medtronic• Occlutech• pfm Medical• Lifetech• Gore
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Watchman DeviceWatchman DeviceWatchman DeviceWatchman Device•• NitinolNitinol frame with PET frame with PET
membrane and fixationmembrane and fixationmembrane and fixation membrane and fixation barbsbarbsCE kCE k•• CE markCE mark
•• Proven to be nonProven to be non--inferior to inferior to anticoagulationanticoagulationanticoagulationanticoagulation•• Randomized Randomized
PROTECT AF t i l dPROTECT AF t i l dPROTECT AF trial and PROTECT AF trial and large registrieslarge registriesGen 2Gen 2
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Watchman DeviceWatchman DeviceWatchman DeviceWatchman Device• Frame sits in the
LAA• Fixation barbs
preventprevent dislodgement
• PET membrane gets• PET membrane gets covered by endotheliumendothelium
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Amplatzer Cardiac Plug ACPAmplatzer Cardiac Plug ACP
• Nitinol wire mesh with distal plug and proximal disk
t d b t l i tconnected by a central waist• Polyester patch inside• CE mark• CE mark• So far only retrospective
registriesg• Results of prospective EU
registry are pendingR d i d t i l j t• Randomized trial just started
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Amplatzer Cardiac Plug ACP
• Plug sits in the LAA• Hooks prevent
dislodgementdislodgement• Umbrella closes the
ifiorrifice
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S t H t LARIATSentre Heart - LARIAT• Pericardial access
Wire with magnetic tip- Wire with magnetic tippericardial space
• Transseptal access• Transseptal access- Wire with magnetic tip LAA
Th t i fi d h th• The two wire find each other• A loop suture is advanced over
the pericardial wire• LAA sutured from outside
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Sentre Heart - LARIAT• Transseptal access
- Wire with magnetic tip LAA
• Pericardial access
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SSentre Heart - LARIAT• 2nd magnet wire
introduced viaintroduced via the pericardial accessaccess
• The wires find each other
• Suture snare• Suture snare advanced in the pericardial spacepericardial space
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SSentre Heart - LARIAT
B f li ti Aft li tiBefore ligation After ligation
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LAA Ligation• Advantages
S f th t i li ti f- Some of the most serious complications of LAA closure can almost not occur
• Tamponade• Device embolisation• Thrombus on the device
• Disadvantagesg- Learning curve of pericardial puncture
Not possible after cardiac surgery- Not possible after cardiac surgery
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I b tt th th th ?Is one better than the other?• It is rare that a LAA can not be closed
- less than 5% with all devices • There are no data comparing the
different devices head to headdifferent devices head to head• You can almost use what you are used
to useto use• However, the devices have
ifi l i i l i it i- some specific exclusion-inclusion criteria- some advantages and disadvantages in
ifi t i l b tspecific anatomical subsets
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Size of the LAASize of the LAA• Watchman:
LAA ti h t b 17 29 ( 31)- LAA ostium has to be 17- 29 (-31) mm• ACPACP
- LAA ostium has to be 10-28mm• Sentre Heart
Diameter of the LAA body has to be <- Diameter of the LAA body has to be < 40mm
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Morphology of the LAAMorphology of the LAA• Watchman:
Mi i "f ti l" LAA l th h ld- Minimum "functional" LAA length should be at least equal to device diameter
• ACPMi i "f i l" LAA l h 10- Minimum "functional" LAA length 10mm
• Sentre HeartSentre Heart- Posterior oriented and "chicken wing"
LAAs can not be closed
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Watchman is more f i i diforgiving regarding
sheath positionsheath position
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ACPACPLanding Zoneg
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ACPSheath orientation
Id l !!Ideal !!
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ACPSheath orientation isSheath orientation is
more important
Id l !!Ideal !!
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Diffi lt !!Difficult !!
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Diffi lt !!Difficult !!
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Sheath orientation notSheath orientation not so important with theso important with the
WatchmanWatchman
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WatchmanWatchmanLanding Zoneg
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WatchmanSheath orientationSheath orientation
optimal
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S b i lSub-optimal
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S b i lSub-optimal
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optimal
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still ok
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still ok
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ACP requires more than theACP requires more than theWatchman a well defined landingg
zone and a perpendiculari t ti f th h th iorientation of the sheath in
relation to the LAA ostiumrelation to the LAA ostium
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Wh t' b t diff tWhat's about different LAA h ?LAA shapes?
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Ideal foreverything!!everything!!
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ACP!ACP!
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W t h !Watchman!
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Not as easy as it looks!y
N d l di !No good landing zone!
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Not as easy as it looks!y
ACP ?
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Not as easy as it looks!y
ACP ?
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Not as easy as it looks!y
ACP ?
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Not as easy as it looks!y
ACP ?
Here you have to measure precisely!
Precisely where you want to place the device
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Not as easy as it looks!y
And Watchman ?
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Not as easy as it looks!y
But only ifthere is
Watchman ? enoughspace!
Could be easier
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What's that?
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What's that?
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What's that?
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Complex morphology
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Complex morphology
Difficult to placean ACP right here!an ACP right here!
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Complex morphology
But rather easy here!
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Complex morpology
And Watchman also easyAnd Watchman also easy –despite complex morphology
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Complex morphology
Body diameter may be tooBody diameter may be too large for Sentre Heart
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Oth id tiOther considerationsIn case of device embolisation it is easier to snare and• In case of device embolisation it is easier to snare and extract the Watchman than the ACP
• With Watchman one sheath size fits for all device sizesWith Watchman one sheath size fits for all device sizes• The sheath can be used for calibration• Decision about device size can be made after sheath insertion
• With ACP no quantitative measurements are needed• With ACP no quantitative measurements are needed after device implantation
• That one LAA closure device is effective in strokeThat one LAA closure device is effective in stroke prevention does not mean necessarily that all other devices are effective as well- Data are still much more solid for Watchman
• To compare the safety profile of different devices a randomized study is neededrandomized study is needed
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When to use which device?When to use which device?• Very short LAA• Very short LAA
- ACP may be better than Watchman• Very large LAA (>28mm)Very large LAA (>28mm)
- Watchman may be better (up to 31mm)• Multiple proximal lobesp p
- ACP may be better (short landing zone, umbrella may cover all lobes)
• But if there is a bad angle between delivery systemand LAA- Watchman may be better
• Patient can not take any blood thinner therapyS t H t b tt- Sentre Heart better