cryosurgery


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cryosurgery

(krī`ōsr'jərē), bloodless surgical technique using a supercooled probe to destroy diseased or superfluous tissue. Liquid nitrogen circulating through the instrument cools it to temperatures as low as −196°C; (−321°F;). Tissue destroyed on contact with the probe is removed by phagocytic white blood corpuscles in a natural bodily process. The method has proved successful in removing warts, tumors, hemorrhoids, and in treating certain brain disorders. It is especially useful in ophthalmology, where it is used to reattach detached retinas and to correct other eye problems.
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cryosurgery

[¦krī·ō′sərj·ə·rē]
(medicine)
Selective destruction of tissue by freezing, as the use of a liquid nitrogen probe to the brain in parkinsonism.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The mechanism behind it is that as the cryosurgery is applied ice crystals are formed intracellularly, and progressive necrosis ensues.
Four wounds in the surgical excision group and three wounds in the cryosurgery group were eliminated from morphometric analysis due to invagination of epithelial tissues, most probably due to improper technique.
In the combined cryosurgery and intralesional corticosteroids injection group, 8 (32%) patients showed excellent results.
Patients noted more pain with treatment during cryosurgery; individuals undergoing curettage received local anesthesia with 1% lidocaine.
A total of 4 patients (3 females and 1 male; average age: 76.5 years) with 4 BD lesions (20-70mm maximal diameter; average: 36.2mm) were treated with cryosurgery followed by ingenol mebutate according to the above combination scheme (Table 1 and Figure 1).
We retrospectively evaluated TGCT patients treated with cryosurgery in addition to surgical synovectomy, with respect to the indication for additional treatment(s), the number of recurrences, and complications.
In this respect, cryosurgery provides the most effective alternative to ensure the safety margin without causing major defects, since it destroys deep diseased tissue through in situ freezing [11].
"Cryosurgery accounts for only about 4 percent of the market share in terms of prostate cancer interventions nationally, but it's essentially an equivalent option to surgery or radiation," says David Levy, MD, with Cleveland Clinic's Glickman Urological & Kidney Institute.
Results: The mean age of patients in cryosurgery was 281.59 years while in submucosal diathermy 302.11 years.
(1,2,3) Treatment options for localized resectable BCC include micrographically controlled surgery, simple excision, curettage, laser ablation, cryosurgery, imiquimod, 5-fluorouracil, photodynamic therapy and radiotherapy.
Salvage radical prostatectomy, salvage cryosurgery, salvage HIFU and salvage brachytherapy are all potential options for these patients.
Modeling of multidimensional freezing problem during cryosurgery by the dual reciprocity boundary eelement method.