Know Thy truFreeze LN2
The extremely low temperature where nitrogen gas turns to a liquid state
What is -196 degrees Celsius?
List an alternative type of cryogen available in GI.
What is Nitrous Oxide or N2O?
This makes up 70-80% of total cell volume.
What is water
Necrosis is another word for this.
What is cell death?
The name of a double-walled tank that holds Liquid Nitrogen at hospitals.
What is a dewar tank?
This makes up 78% of the earth’s atmosphere – it’s an odorless, colorless, non-toxic, & non-flammable gas.
What is nitrogen?
This type of cryogen is cleared by the FDA to treat ONLY Barrett’s with dysplasia and GAVE.
What is N2O used by C2 Balloon.
This provides cellular support for cells and is sometime referred to as the ECM.
What is the extracellular matrix?
This forms inside and outside of cells when they are exposed to cryo.
What are ice crystals?
The size of the LN2 dewar tank in the truFreeze console.
What is 15 Liters? Fills to 13.7 Liters.
Name 3 contraindications for using truFreeze LN2 in the GI Tract.
What is Pregnancy, Mucosal Breaks, Restricted Lumen preventing CDT or gas venting & Food in the stomach?
Name a type of ablation commonly used in GI that causes a layer of eschar (scarring).
What is RFA or Argon?
The key benefit of repeated freeze/thaw cycles with cryotherapy.
What is more cellular or tissue destruction or greater kill zone?
True or False: LN2 Cryotherapy induces tissue necrosis or cell death through controlled freezing and thawing cycles.
What is true?
Console LN2 Tank works most efficiently at this level of fill or above.
What is 50%?
Name the 4 medical professionals needed in the room to support a truFreeze procedure.
Who is the 1)Physician, 2)Anesthesia/CRNA, 3)Belly Monitor, and 4)Console Operator?
True or False: With heat ablation, more energy results in deeper treatment beyond the scar.
What is false?
Malignant cells have less water, are more vascular, and produce a higher rate of______.
What is heat?
The only cryogen in GI that gets cold enough to overcome body temperature to cause necrosis in malignant cells.
What is Liquid Nitrogen?
The PSI required on an LN2 source tank to fill a truFreeze console.
What is 22 PSI?
The liquid-to-gas expansion ratio of nitrogen.
What is 1:700?
This ablation technology consistently treats to .7mm or 700 microns and is measured in joules.
What is RFA?
Name the 1 zone formed in ablated tissue with cryothermic (cold) energy?
What are the complete ablation zone ot transition zone?
The temperature required to cause malignant cell death.
What is -50 degrees Celsius?
The number of procedures that can be complete with a tank level indictor of yellow?
What is at least one procedure?