In reading through the posts, I have come upon some misconceptions and mis-statements concerning both thermocoagulation and the electromatic spectrum. Maybe these points are what leads people to both underestimate thermolysis and, even among some pro’s lead to over-treatment.
First off, let’s take a look at 2 related terms.
Thermocoagulation vs. thermodessication;
Thermocoagulation refers to the process of inducing the coagulation of proteins in living tissue. Thermodessication refers to driving any moisture out of tissues.
In human tissues, thermocoagulation occurs at 127 deg. F (53 deg. C). Thermodessication requires a temperature of at least 212 deg. F (100 deg. C). As water boils at 212 deg. F., thermocoagulation occurs at a much lower temperature.
In order to be effective, and not cause damage to the skin, the temperature of the heating pattern during thermolysis must be maintained at a temperature much lower than 212 deg.F. An effective heating pattern will not exceed 160 deg F. adjacent to the probe (the hottest portion of the heating pattern) and the size of the heating pattern will be the point where the heating pattern is at the 127 deg. F point.
If there is a discernable “pop” when the H.F. energy is released into the follicle, too much energy is being used and the moisture is being driven out of the treatment area and the size of the heating pattern is significantly reduced - as steam is being produced, causing thermolysis blow out. This has the effect of taking the heat away from the follicle and significantly narrowing the heating pattern - not doing a good job of treating the entire follicle.
Frequency Vs. Wavelength
Simply stated, the wavelength of an electro-magnetic wave is expressed by the following formula:
300/f
Where 300 is the number of million meters per second of the velocity of an electromagnetic wave in free space and f is expressed as the number of Mega Hertz of the signal. For a 12.56MHz signal, the wave length would be 22.12 meters (300/12.56=22.13M).
The electromagnetic spectrum basically goes from .1 KHz to 20KHz as Very Low Frequency, 20.1KHz to 3MHz as low frequency, 3MHZ to 30MHz as High Frequency, 30MHz to 200MHz as Very High Frequency, and so on thrugh microwaves, infra-red light, visible light, ultraviolet light, x-rays, etc. The point being that the higher the frequency, the shorter the wavelength. As light waves are extremely high frequengy, the wavelengths are measured in Angstroms (millionths of a meter) as the number of insignificant zeros becomes too much for conventional communication.
The point to all of this is that the reason that things like microwave ovens and lasers work is that their wavelengths are in the quarter-wavelength to to one-wavelength to some aspect of the molecules and atoms that they stimulate into motion.
2 basic conclusions here:
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Too much thermolysis energy causes thermodessication - not thermocoagulation, reducing the width of the heating pattern and the net effectiveness of treatment with thermolysis. For this reason, the effectiveness of treatment with thermolysis requires both the proper application of power and accurate insertions to achieve maximum effectiveness.
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The higher the frequency of an electromagnetic wave, the shorter the wavelength. Laser wavelengths are so short they are referred to in terms of Angstroms.
With regard to item number 2, there is still some open room for debate as far as the long-tern effects from laser treatment goes. I am not taking a stand on either side of this issus as the empiracle data is not in yet. It will take years to develop the statistical domain to see if skin cancer, permanent hyperpigmentation, spontanious human combustion or any other long-term effect will result from laser therapy.
I have read articles where the Air Force has made the determination that laser enegies do have the ability to deactivate the P53 gene, wich controls human cell division, increasing the liklihood of skin cancers. However, these tests were run at laser targeting frequencies, not at the frequencies used for laser therapy. Again we are at the point of talking apples and oranges.
My best to all!
Joanie <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />