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Muhamed Sarić MD, PhD, MPADirector of Noninvasive Cardiology | Echo LabAssociate Professor of Medicine
Left Atrial Appendage Closure Devices
2017 Echo Florida | Orlando, FL
October 10, 2017 | 9:40 – 10:00 PM | 20 min
Disclosures
Speakers Bureau (Philips, Medtronic)Advisory Board (Siemens)
Use of experimental devices in approved clinical trials will be discussed
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Upcoming JASE Issue
Left Atrial Appendage Occlusion/Exclusion:
Procedural Image Guidance with Transesophageal
Echocardiography (TEE)
*Alan F. Vainrib, MD; ^Serge C. Harb, MD; ^Wael Jaber, MD;
*Ricardo J Benenstein MD; *Anthony Aizer MD; *Larry A Chinitz,
MD; *Muhamed Saric, MD, PhD
From
*Leon H Charney Division of Cardiology
New York University Langone Medical Center
New York, NY and
^Cleveland Clinic, Cleveland, OH
Femoral venous access
Trans-septal puncture LAA
Sizing
Device Deployment
Percutaneous LAA Occlusion: Procedural Steps
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Percutaneous LAA Closure Devices
ENDOCARDIAL
LAA EXCLUSION
EPICARDIAL
LAA EXCLUSION
WATCHMAN LARIATAMULET
Percutaneous LAA Closure Devices
Karl Eugen Hauptmann Eberhard Grube
WATCHMANFirst to implant a Watchman device
in 2002 in Germany
Kurt Amplatz
AMULETInventor of Amplatzer
family of devices
William E. Cohn
LARIATInventor of Lariat deviceat Texas Heart Institute
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WATCHMAN PROCEDURE
WATCHMAN PROCEDURE
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10/10/2017 NYU DIVISION OF CARDIOLOGY 9
WATCHMAN PROCEDURE
WATCHMAN PROCEDURE
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WATCHMAN PROCEDURE
WATCHMAN PROCEDURE
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WATCHMAN PROCEDURE
WATCHMAN PROCEDURE
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10/10/2017 NYU DIVISION OF CARDIOLOGY 15
WATCHMAN PROCEDURE
WATCHMAN PROCEDURE
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WATCHMAN PROCEDURE
10/10/2017 NYU DIVISION OF CARDIOLOGY 18
WATCHMAN PROCEDURE
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WATCHMAN PROCEDURE
Real-time complementary & collaborative use offluoroscopy + transesophageal echocardiography
IMAGING OF LAA DEVICE CLOSURE PROCEDURE
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LAA DEVICE CLOSURE PROCEDURE: ROAD MAP
1. Left atrial appendage (LAA) sizing2. Trans-septal puncture3. Device deployment in LAA
Step #1• LAA Sizing
• Demonstration of exclusion criteria
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LAA Sizing: Endocardial Devices
Sizing based on LAA diameter and
depth.
Anatomic orifice diameter
Sizing orifice diameter
Watchman comes in 5 dimeter sizes, with 3-mm diameter increments.
21mm
24mm
27mm
30mm
33mm
US QUARTER
Diameter 24 mm
Watchman Device Sizes
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LAA Diameter
DeviceDiameter
DeviceCompression
STEP #1------------------------------------------
Measure LAA diameter at TEE angles
0, 45, 90 & 135°
STEP #2------------------------------------------
Select the largest LAA diameter measured.
STEP #3------------------------------------------
Use a lookup table to select appropriately oversized device.
Watchman Device Sizing
0°
DIAMETER 26 mm
DEPTH
37 mm
LA APPENDAGE SIZING: 2D TEE
45°
DIAMETER 19 mm
DEPTH
35 mm
90°
DIAMETER 19 mm
DEPTH
30 mm
135°
DIAMETER 18 mm
DEPTH
26 mm
Select the largest LAA
measurements for Watchman device
sizing.
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LA APPENDAGE SIZING
3D TEE | MULTIPLANE RECONSTRUCTION (MPR)
LONG AXESMPR assures measuring
LAA diameter at same level in all long-axis views.
SHORT AXISMPR allows for visualization of
LAA orifice shape in short-axis views.
LAA on 3D TEE: ‘NYU Twirl’
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Dynamic change in size & shape of LAA orifice during the cardiac cycle.
Direct on-image LAA diameter measurements may NOT be precise.
LA Appendage Sizing on 3D TEE
PA
MV
LAA Morphologies
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saric.us/echonomy
LAA WIDTH
Should be less than Lariat diameter
(< 40 mm)
LARIAT DIAMETER
(40 mm)
LAA Sizing: Lariat Device
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Step #2• Transseptal puncture
Trans-septal Puncture
TEE provides guidance for trans-septal puncturein the posterior & inferior aspect of the interatrial septum.
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SVC
AV
TVIVC
<< Foramen ovale
Posterior Aspect
InferiorAspect
Fossa Ovalis | Right Atrial Perspective
Atrial Septum
LAA
AV
PA
Infero-posterior puncture
Trans-septal Puncture | Optimal Location
Anterior puncture
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RA
AV
LAPosterior
Anterior
LA
RA
SVC
Inferior
Superior
TEE | AV SHORT AXIS TEE | BICAVAL VIEW
Trans-septal Puncture | Optimal Location
Trans-septal Puncture | Optimal Location
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Trans-septal Puncture | Optimal Location
Trans-septal Puncture | Optimal Location
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SVC
AV
TVIVC
<< Foramen ovale
Posterior Aspect
InferiorAspect
Trans-septal Puncture | Optimal Location
Step #3• LAA Occluder Device Deployment
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LAA Occluder Device Deployment
Complementary roles of echocardiography and fluoroscopyduring device deployment.
LAA Fluoroscopy View
RAO Cranial (‘Short axis’)
RAO Caudal(‘Long axis’)
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Equivalent Views
What TEE views are equivalent to fluoroscopic RAO views?
Fluoroscopy vs. TEE
RAO Cranial (‘Short axis’)
45° View
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Fluoroscopy vs. TEE
RAO Cranial (‘Short axis’)
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LAA Fluoroscopy View
RAO Caudal(‘Long axis’)
135° View
LAA Fluoroscopy View
RAO Caudal(‘Long axis’)
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TEE vs. Fluoroscopy
TEE 135° | RAO Caudal(‘Major or Long axis’)
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Watchman
Watchman Deployment
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Watchman DeploymentPASS Check
PositionAnchoringSizeSeal
While the Watchman is still attached to its delivery cable, perform the PASS check.
POSITIONProperly positioned; no tilt
ANCHORINGTug Test
SIZE15-30% Compression
SEALNo para-device leak
3D TEE | Watchman Release
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Biplane TEE | Watchman Deployed
Biplane TEE | Watchman Deployed
Watchman
Properly placed Watchman device at the orifice of the LA appendage
MV
PA
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TEE | Watchman Deployed
Watchman
Watchman device properly seals the LAA orifice
(No color flow around the device)
Watchman: Optimal vs. Suboptimal Results
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Amplatzer Amulet
Amulet Device Deployment
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3D TEE | Amulet Deployed
Disc
Lobe
Disc
Lobe
3D TEE | Amulet Deployed
Disc
MV
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Lariat
J Am Soc Echocardiogr. 2014 Jul;27(7):699-708.
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Lariat Procedure
LARIAT Procedure: Pericardial Access
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LARIAT Procedure: Fluoroscopy
Endocardialhardware
Epicardialhardware
Magnets
LARIAT Procedure: Fluoroscopy
Magnets
Endocardial Balloon
Epicardial Snare
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Lariat Procedure: 3D TEE
LAAMV
Atrial Septum
LAA
Lariat Procedure: 3D TEE
LARIAT: Endocardial Wire
Atrial Septum
LAA
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Lariat Procedure: 3D TEE
LAA
Balloon inflation at LAA orifice
LARIAT Procedure: 3D TEE
LAA Prior to Ligation LAA Post Ligation
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LARIAT Procedure: Ligated LAA
LARIAT Procedure: 3D TEE
LAA Prior to Ligation LAA Post Ligation
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New York University Langone Medical Center
Thank You!
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