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Rectal Insufflation
Rectal Insufflation is "95% as effective as Major Autohemotherapy" (Renate Viebahn). This method is used by many physicians in their clinics and by those at home as well. The ozone gas (usually at a concentration between 25ug/ml - 40ug/ml, and a flow rate of 1/8 litre per minute) is infused rectally using a urethral catheter. The procedure is usually performed following a bowel movement or a colonic treatment in order to ensure the colon is relatively free of fecal matter. The ozone enters the lower intestine, is held for at least 30 minutes, and over this period it is absorbed into the system. The treatment is performed using the above guidelines (25-40ug/ml) if the desired effects are the immune modulation and other "system wide" effects typically desired of Ozone Therapy.
Rectal insufflation is 95% as effective as Major Autohemotherapy
Infusing gas rectally is much like blowing up a balloon. For safety and comfort reasons the physician and patient must always ensure that only the desired volume of ozone gas is infused. A typical starting point for many users is 125cc of gas (which can be obtained if the flow rate is 1/8 litre per minute as above, and the treatment is performed for one minute). The ozone gas is infused through the catheter which is inserted into the rectum approximately 4 to 6 inches. Using the example above, the flow is then stopped within one minute, the catheter withdrawn, and the patient then holds this gas for a period of at least 30 minutes.
Why 30 minutes? Dr. Michael Carpendale has shown us through studies that the ozone gas is absorbed over a period of 30-40 minutes as it is held in the body. If the ozone escapes before that time, the full benefit of the treatment has not been obtained. The gas is slowly absorbed into the body, and the "system wide" effects of ozone therapy are obtained. Most users of this method have mentioned that little or no discomfort is caused by this method, and most find they have no gas to release at the end of the 30 minute period.
The only time this technique varies is if the desired outcome of the rectal insufflation is to stop the bleeding associated with "Bleeding Colitis". In this case, the German standards indicate that the concentration of ozone should be 60ug/ml and the amount of ozone infused should only be 60cc. This higher ozone concentration will stop the bleeding, but will not heal the colon. Therefore the goal is to first stop the bleeding with the higher concentration (60ug/ml) and once stopped, the technique above is used to heal the affected parts of the colon. The basic guidelines are that ozone at higher concentrations (60 ug/ml) are used to stop bleeding and to sterilize. After this is accomplished the ozone concentration should be lowered to the levels known to cause healing, that is, 30 - 40 ug/ml.
A recent publication encouraging a "45 minute rectal insufflation" should never be attempted. The author of this technique is under the impression that "more is better" and therefore performing an insufflation for this length of time should be preferable to the short rectal insufflation. The guidelines instruct someone to use two catheters, one deep inside the colon, and one only inserted a few inches. One catheter is used to infuse the ozone, while the other is used to allow the ozone to escape. This prevents the build up of any pressure within the colon, and allows the user to infuse ozone for as long as desired. Again, this method is assuming that 'more is better'. Unfortunately this logic is flawed and has absolutely no scientific basis. There is no increase in benefit in using this method, and in fact, the user attempting this method runs a very clear risk of massive irritation of the sensitive tissue within the colon. Ozone in proper amounts is a wonderful healing tool, however attempting a 45 minute rectal insufflation can actually cause irritation and damage of this sensitive tissue.
http://www.mediozonecentre.com/colon_cleansing.html