Energy-Based Platforms in Minimally Invasive …Energy-Based Platforms in Minimally Invasive...
Transcript of Energy-Based Platforms in Minimally Invasive …Energy-Based Platforms in Minimally Invasive...
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Energy-Based Platforms in Minimally Invasive
Thoracic Surgery
Jeremiah T. Martin MBBCh FRCSI MSCRD
Senior Medical Director, Thoracic SurgeryPortsmouth, Ohio
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No Disclosures
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Energy
William T. Bovie(1882-1958)
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Energy Devices…• Coagulate small vessels• Minimize blood loss in surgery
• In Minimally Invasive Surgery:
Critically important to facilitating MIS
Hemostatic division of tissue
Division of increasingly large blood vessels
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Types of EnergyElectrical / RF Vibrational OthersElectrosurgery Harmonic CUSALigasure Thunderbeat HydrojetEnsealArgon
tissue heatingprotein coagulation
hemostasis
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Electrosurgery• Electrocautery ≠ Electrosurgery• Electrocautery
• Electrosurgery
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Tissue vs Heat45 C Collagen uncoils, may reanneal with
fusion60 C Coagulation necrosis80 C Carbonization, drying, shrinking
100 C Complete cellular destruction and vaporization
125 C Complete oxidation of protein and lipids
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Electrosurgery Principles
𝐼𝐼 =𝑉𝑉𝑅𝑅
Current density - heating effect
http://www.abc.net.au/science/articles/2010/07/07/2946773.htm
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Electrosurgery Principles
Radio Frequency Energy
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Electrosurgery Principles
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Electrosurgery PrinciplesMonopolar / Unipolar
Bipolar
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Electrocautery in VATS
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Risks: Monopolar in MIS
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Modern Bipolar-Type devices
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EnsealPositive Temperature Control
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Ligasure
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Ligasure
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Harmonic Scalpel
Vibration: 55,500HzTissue heating, coagulation
Cut/seal thicker tissue
Seal vessels ~7mm
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Harmonic Scalpel
Active blade ->
Compression ->
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Harmonic Scalpel
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Combination instrument
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Novel Energy and VATS• Energy devices facilitate dissection• Decrease blood loss, particularly in
inflammatory and post-induction cases• Facilitate a clean lymph node dissection
• What about vascular division?
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Literature Summary
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Novel Energy and VATS
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Argon Beam Coagulator• Argon: inert gas
which is easily ionized
• Limited penetrationdepth
• Cover large surface
• Uses: extrapleural dissection; re-operative adhesions
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Summary• Energy devices are critical to the safe
performance of minimally invasive thoracic surgery
• Understand the limits and risks of each tool• We will likely see increasing application of
these tools in the future
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Energy-Based Platforms
Safety ♦ Quality ♦ Service ♦ Relationships ♦ Performance
Jeremiah T [email protected]