New ThoracoAbdominal Aortic Aneurysm Stent Graft System€¦ · Aortic Aneurysm Stent Graft System...
Transcript of New ThoracoAbdominal Aortic Aneurysm Stent Graft System€¦ · Aortic Aneurysm Stent Graft System...
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New ThoracoAbdominal Aortic Aneurysm
Stent Graft System
Patrick W. Kelly, MD FACS
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• US Patent Applications Pending/Awarded on Devices
Presented
• Licensed Intellectual Property to Medtronic
Disclosures Patrick Kelly
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Disclaimer
This presentation discusses off-label and no-label use of devices
This presentation discusses the use of physician-modified endografts (PMEGs) under
PSIDE G140207
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Current Endo Solutions Either Approved or Under Industry Sponsored Study
• T-Branch Approved in Europe and undergoing clinical trial in the U.S.
• Z-Fem 4 fenestrations currently undergoing clinical trail in the U.S.
• Tambe Currently going through EFS with 3 clinical implants.
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The Real World
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Design Requirements
• Durable exclude the aneurysm with fixation and seal
• Handle virtually any anatomy
• Provide favorable flow characteristics
• Provide unimpeded flow to vital organs throughout the surgery
• Stageable
• Be a fully OFF THE SHELF product
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The Valiant ThoracoAbdominal Aortic Aneurysm
Stent Graft System In Partnership With Medtronic
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Medtronic Valiant Thoraco- Abdominal Aortic Stent Graft System
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Paradigm Shift
•Proximal Deployment
•Endo-Bypasses
•Delayed Distal Seal
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ThoracoAbdominal Aortic Aneurysm Repair
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Proximal Deployment
Place the Thoracic Bifurcated Graft and Visceral Manifold above the “branch vessels.”
This allows for continued perfusion throughout the procedure.
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ThoracoAbdominal Aortic Aneurysm
Proximal Deployment Of
Thoracic Bifurcated Graft
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Thoracic Bifurcated Graft
Valiant Main Component
Diameter Size Match
32,36,40,46
Endurant Extension
20mm Limb
16mm Limb
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ThoracoAbdominal Aortic Aneurysm
Proximal Deployment Of
Visceral Manifold
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Visceral Manifold Graft
24mm Main Body
14mm Proximal Limbs
8mm Individual Limbs
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Endo-Bypass
Each of the branch vessels are stented individually from a position more proximally.
These bridging stents are slightly longer, but the favorable flow characteristics and conformability to anatomic variations mirror many of the lessons we’ve learned from open bypass.
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ThoracoAbdominal Aortic Aneurysm
Endo-Bypass
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ThoracoAbdominal Aortic Aneurysm
Endo-Bypass
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ThoracoAbdominal Aortic Aneurysm
Endo-Bypass
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ThoracoAbdominal Aortic Aneurysm
Endo-Bypass
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Delayed Distal Seal
Once flow has been secured to each of the involved branches, then the open limb of the proximal compartmentalizing graft can be extended distally excluding the diseased segment of vessel.
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ThoracoAbdominal Aortic Aneurysm
Delayed Distal Seal
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ThoracoAbdominal Aortic Aneurysm
Delayed Distal Seal
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ThoracoAbdominal Aortic Aneurysm
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Velocity Streamlines
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Journal of Vascular Surgery
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29 Patients Treated (March 2012 to Present)
Gender:
16 males
13 females
Mean Age:
72.1 (58-87)
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I & II 8/29
5.5-7.1cm
III 6/29
5.2-8.2cm
IV 8/29
5.3-7.2cm 36.3-44.7mm At the Renals
V 7/29
5.2-5.7cm
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Intra-Op
• Total Length of Surgery 297min (238-489)
• Fluoro Time 95min (57-238)
• Total Contrast Used 102ml (43-137)
• Target Vessels Debranched 108/111* *3 Vessel we unsuccessfully debranched secondary to previously placed superenal fixated Stent Grafts
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In Hospital Post-Op Results
• Mortality rate 0/29
• MI 0/29
• Renal Failure 2/29
• CVA 0/29
• Paraplegia 2/29
• LOS 7.5days (3-21)
• Discharged to Home 23/29 w/ LOS 6.1days
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Meeting 1yr Followup 22/29
Aneurysm Related Deaths 0/29
Renal Failure 0 new cases
Paraplegia 0 new cases
EndoLeaks 2- Type 3 0-Type 1
No Evidence of Sack Growth Nor Graft Migration
Branch Graft Patency 80/81 99% > 1yr
Mid-term Follow-up
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I & II 8/29
5.5-7.1cm
III 6/29
5.2-8.2cm
IV 8/29
5.3-7.2cm 36.3-44.7mm At the Renals
V 7/29
5.2-5.7cm
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Clinical Results Summary • In Hospital Mortality 0/29
• 30 Day Mortality 0/29
• Aneurysm Related Mortality 0/29
• All Cause Mortality 4/22
• Renal Failure 2/29 Requiring Dialysis
• Paraplegia 2/29
• EndoBypasses Placed 108/111
• Patency Rates 107/108
• Secondary Interventions 0/107EndoBypasses
• Type 3 EndoLeaks 2/248 Joints
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Journal of Vascular Surgery
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Conclusions
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Design Requirements
• Durable exclude the aneurysm with fixation and seal
• Handle virtually any anatomy
• Provide favorable flow characteristics
• Provide unimpeded flow to vital organs throughout the surgery
• Stageable
• Be a fully OFF THE SHELF product
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With very reasonable but
certainly not perfect results
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Thank you!
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New ThoracoAbdominal Aortic Aneurysm
Stent Graft System
Patrick W. Kelly, MD FACS