Abstract
ABSTRACT
In the last two decades several publications have touted the advantages of using cryosurgery in the treatment of uterine cervical lesions. This article presents a type of inert metal receptors which, when cooled with liquid nitrogen (LN2) at −196°C capture the temperature for further transmission to the lesion under treatment. A special insulating property of these inert metal receptors keeps the cold concentrated on the contact surface. An aspiration system eliminates the "cloud effect" which occurs when performing these applications. Charts of temperatures taken from tissues at 1, 2, and 3 minutes of application, and when application is complete are shown. These graphs are compared with those obtained with carbon dioxide (CO2) at − 65°C as cooling element. It was found that freezing penetrates more deeply into the tissues when LN2 is used, and defrosting times are longer. We report 275 patients with benign lesions of the cervix who have been satisfactorily treated with this method over the last two years. In conclusion, with LN2: (1) we have obtained excellent results after fewer applications. (2) In Argentina, this treatment costs ten times less than that with CO2.
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